0001260221-26-000040 | 10-Q | XBRL Viewer

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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Statement of Comprehensive Income [Abstract]
Net income	$ 536	$ 479	$ 981	$ 972
Less: Net income attributable to noncontrolling interests	(1)	0	(1)	0
NET INCOME ATTRIBUTABLE TO TD GROUP	535	479	980	972
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment	(58)	100	(32)	(127)
Unrealized gains (losses) on derivatives	16	(24)	22	(2)
Pension and post-retirement benefit plans adjustment	0	0	0	0
Other comprehensive (loss) income, net of tax, attributable to TD Group	(42)	76	(10)	(129)
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO TD GROUP	$ 493	$ 555	$ 970	$ 843

REVENUE RECOGNITION (Tables)

6 Months Ended

Mar. 28, 2026

Revenue from Contract with Customer [Abstract]

Contract with Customer, Asset and Liability


	March 28, 2026		September 30, 2025
Contract assets, current (1)	$	311	$	280
Contract assets, non-current (2)	111		94
Total contract assets	422		374
Contract liabilities, current (3)	145		143
Contract liabilities, non-current (4)	6		7
Total contract liabilities	151		150
Net contract assets	$	271	$	224

(1)Included in prepaid expenses and other on the condensed consolidated balance sheets.

(2)Included in other non-current assets on the condensed consolidated balance sheets.

(3)Included in accrued and other current liabilities on the condensed consolidated balance sheets.

(4)Included in other non-current liabilities on the condensed consolidated balance sheets.

DEBT (Tables)

6 Months Ended

Mar. 28, 2026

Debt Disclosure [Abstract]

Schedule of Debt

The Company’s debt consists of the following (in millions):


	March 28, 2026
	Gross Amount		Debt Issuance Costs		Original Issue Discount		Net Amount
Short-term borrowings—trade receivable securitization facility	$	725	$	(1)	$	—	$	724
Term loans	$	11,896	$	(48)	$	(32)	$	11,816

6.750% secured notes due 2028 (“2028 Secured Notes”)	2,100		(9)		(5)		2,086
4.625% senior subordinated notes due 2029 (“4.625% 2029 Notes”)	1,200		(4)		—		1,196
6.375% secured notes due 2029 (“2029 Secured Notes”)	2,750		(15)		(1)		2,734
4.875% senior subordinated notes due 2029 (“4.875% 2029 Notes”)	750		(3)		—		747
6.875% secured notes due 2030 (“2030 Secured Notes”)	1,450		(9)		—		1,441
7.125% secured notes due 2031 (“2031 Secured Notes”)	1,000		(7)		(5)		988
6.625% secured notes due 2032 (“2032 Secured Notes”)	2,200		(16)		—		2,184
6.000% secured notes due 2033 (“2033 Secured Notes”)	1,500		(11)		—		1,489
6.375% senior subordinated notes due 2033 (“6.375% 2033 Notes”)	2,650		(13)		(18)		2,619
6.250% secured notes due 2034 (“2034 Secured Notes”)	500		(4)		—		496
6.750% senior subordinated notes due 2034 (“6.750% 2034 Notes”)	2,000		(17)		—		1,983
6.125% senior subordinated notes due 2034 (“Initial 6.125% 2034 Notes”)	1,200		(11)		—		1,189
Government refundable advances	8		—		—		8
Finance lease obligations	303		—		—		303
	31,507		(167)		(61)		31,279
Less: current portion	130		(1)		—		129
Long-term debt	$	31,377	$	(166)	$	(61)	$	31,150

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Mar. 28, 2026 shares
Trading Arrangements, by Individual
Material Terms of Trading Arrangement	On February 26, 2026, Patrick Murphy, the Company's Co-Chief Operating Officer, modified and replaced an existing “Rule 10b5-1 trading arrangement” (as defined in Item 408 of Regulation S-K) for the sale of 11,270 shares of common stock issuable upon the exercise of vested options intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act, which the modified Rule 10b5-1 trading arrangement begins on May 28, 2026 and terminates no later than May 30, 2027.
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Initial Trading Plan [Member] \| Patrick Murphy [Member]
Trading Arrangements, by Individual
Name	Patrick Murphy
Title	Co-Chief Operating Officer
Rule 10b5-1 Arrangement Terminated	true
Termination Date	February 26, 2026
Modified Trading Plan [Member] \| Patrick Murphy [Member]
Trading Arrangements, by Individual
Name	Patrick Murphy
Title	Co-Chief Operating Officer
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	February 26, 2026
Expiration Date	May 30, 2027
Arrangement Duration	367 days
Aggregate Available	11,270

GOODWILL AND INTANGIBLE ASSETS - Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Mar. 28, 2026	Sep. 30, 2025
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 5,345	$ 4,851
Intangible Assets, Accumulated Amortization	1,501	1,397
Total	3,844	3,454
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,894	2,647
Accumulated Amortization	1,196	1,137
Net	1,698	1,510
Order backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	70	59
Accumulated Amortization	43	28
Net	27	31
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,156	971
Accumulated Amortization	255	225
Net	901	746
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12	12
Accumulated Amortization	7	7
Net	5	5
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	1,213	1,162
Intangible Assets (Excluding Goodwill), Net	$ 1,213	$ 1,162

ACQUISITIONS - Servotronics, Inc. (Details) - USD ($) $ / shares in Units, $ in Millions		6 Months Ended
	Jul. 01, 2025	Mar. 28, 2026	Mar. 29, 2025	Sep. 30, 2025	Jun. 02, 2025
Business Combination [Line Items]
Payment to acquire business		$ 1,000	$ 140
GOODWILL		11,038		$ 10,612
Servotronics, Inc.
Business Combination [Line Items]
Business combination, price per share (in dollars per share)					$ 47.00
Payment to acquire business	$ 133
GOODWILL		76
Other intangible assets recognized for the acquisition		$ 46

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized.

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+ Details

ACQUISITIONS - Stellant Systems, Inc. (Details) - USD ($) $ in Millions		6 Months Ended
	Dec. 30, 2025	Mar. 28, 2026	Mar. 29, 2025
Business Combination [Line Items]
Payment to acquire business		$ 1,000	$ 140
Stellant Systems, Inc.
Business Combination [Line Items]
Payment to acquire business	$ 960

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

ACQUISITIONS - Simmonds Precision Products, Inc. (Details) - USD ($) $ in Millions		6 Months Ended
	Oct. 06, 2025	Mar. 28, 2026	Mar. 29, 2025	Sep. 30, 2025
Business Combination [Line Items]
Payment to acquire business		$ 1,000	$ 140
GOODWILL		11,038		$ 10,612
Simmonds Precision Products, Inc.
Business Combination [Line Items]
Payment to acquire business	$ 757
Amount of goodwill expected to be tax deductible		312
Business acquisition, intangible assets, expected tax deductible amount		425
GOODWILL		312
Other intangible assets recognized for the acquisition		$ 425
Goodwill and intangible assets, deductible for tax purposes, term		15 years

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

GOODWILL AND INTANGIBLE ASSETS - Finite and Indefinite-Lived Intangible Assets (Details) $ in Millions	6 Months Ended
	Mar. 28, 2026 USD ($)
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 460
Intangible Assets Acquired	513
Technology & Other
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 261
Technology & Other \| Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	10 years
Technology & Other \| Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	20 years
Order backlog
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 13
Order backlog \| Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	1 year
Order backlog \| Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	3 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived Intangible Assets Acquired	$ 186
Customer relationships \| Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	10 years
Customer relationships \| Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Remaining Amortization Period	20 years
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired	$ 53

SEGMENTS - Schedule of Total Assets by Segment (Details) - USD ($)
$ in Millions

Mar. 28, 2026

Sep. 30, 2025

Segment Reporting, Asset Reconciling Item [Line Items]

Total assets

$ 25,442

$ 22,909

Operating Segments | Power & Control

Segment Reporting, Asset Reconciling Item [Line Items]

Total assets

11,171

9,859

Operating Segments | Airframe

Segment Reporting, Asset Reconciling Item [Line Items]

Total assets

10,434

10,267

Operating Segments | Non-aviation

Segment Reporting, Asset Reconciling Item [Line Items]

Total assets

205

202

Corporate, Non-Segment

Segment Reporting, Asset Reconciling Item [Line Items]

Total assets

^[1]

$ 3,632

$ 2,581

[1]	Corporate consists of our corporate offices and does not constitute an operating segment. These amounts are included to reconcile to total consolidated assets.

- Definition

Amount of asset recognized for present right to economic benefit.

+ References

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+ Details

STOCK REPURCHASE PROGRAM	6 Months Ended
STOCK REPURCHASE PROGRAM	Mar. 28, 2026
Equity [Abstract]
STOCK REPURCHASE PROGRAM	STOCK REPURCHASE PROGRAM On January 27, 2022, the Board of Directors of the Company (the “Board”) authorized a new stock repurchase program permitting repurchases of our outstanding shares not to exceed $2.2 billion in the aggregate (referred to herein as the “existing stock repurchase program”), subject to any restrictions specified in the Second Amended and Restated Credit Agreement dated as of June 4, 2014 (the “Credit Agreement”) and indentures governing the existing Subordinated and Secured Notes, replacing the $650 million stock repurchase program. In November 2025, the Board authorized an additional $5.0 billion in share repurchases of common stock permissible under the Company’s existing stock repurchase program. There is no expiration date for the existing stock repurchase program. During the second quarter of fiscal 2026, the Company repurchased 602,070 shares of common stock at an average price of $1,200.58 per share for a total amount of $723 million. For the twenty-six week period ended March 28, 2026, the Company repurchased 687,282 shares of common stock at an average price of $1,206.68 per share for a total amount of $829 million, of which $108 million is accrued within accrued and other current liabilities as of March 28, 2026. The repurchased shares of common stock are classified as treasury stock in the statement of changes in stockholders' deficit. As of March 28, 2026, $4,958 million remains available for repurchase under the existing stock repurchase program. Subsequent Event – April Share Repurchase Activity – In April 2026, the Company repurchased 66,537 shares of common stock at an average price of $1,138.88 per share for a total amount of $76 million.

GOODWILL AND INTANGIBLE ASSETS

6 Months Ended

Mar. 28, 2026

Goodwill and Intangible Assets Disclosure [Abstract]

GOODWILL AND INTANGIBLE ASSETS

The following is a summary of changes in the carrying value of goodwill by segment from September 30, 2025 through March 28, 2026 (in millions):


	Power & Control		Airframe		Non-aviation		Total
Balance at September 30, 2025	$	5,273	$	5,260	$	79	$	10,612
Goodwill acquired during the period	365		60		—		425
Purchase price allocation adjustments	21		—		—		21
Currency translation adjustments and other	(15)		(5)		—		(20)
Balance at March 28, 2026	$	5,644	$	5,315	$	79	$	11,038

Other intangible assets–net in the condensed consolidated balance sheets consist of the following (in millions):


	March 28, 2026						September 30, 2025
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Trademarks and trade names	$	1,213	$	—	$	1,213	$	1,162	$	—	$	1,162
Technology	2,894		1,196		1,698		2,647		1,137		1,510
Order backlog	70		43		27		59		28		31
Customer relationships	1,156		255		901		971		225		746
Other	12		7		5		12		7		5
Total	$	5,345	$	1,501	$	3,844	$	4,851	$	1,397	$	3,454

The estimated fair value of the net identifiable tangible and intangible assets acquired is based on the acquisition method of accounting. The fair value of the net identifiable tangible and intangible assets acquired will be finalized within the measurement period (not to exceed one year). Intangible assets acquired during the twenty-six week period ended March 28, 2026 are summarized in the table below (in millions):


	Gross Amount		Amortization Period
Intangible assets not subject to amortization:
Trademarks and trade names	$	53

Intangible assets subject to amortization:
Technology & Other	261		10 to 20 years
Order backlog	13		1 to 3 years
Customer relationships	186		10 to 20 years
	460

Total	$	513

The Company performs its annual impairment test for goodwill and other intangible assets as of the first day of the fourth fiscal quarter of each year, or more frequently, if events or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying value. We have assessed the changes in events and circumstances through the second quarter of fiscal 2026 and concluded that no triggering events occurred that required an interim test.

ACQUISITIONS - Jet Parts Engineering and Victor Sierra Aviation Holdings (Details) - USD ($) $ in Millions		6 Months Ended
	Apr. 07, 2026	Mar. 28, 2026	Mar. 29, 2025
Business Combination [Line Items]
Payment to acquire business		$ 1,000	$ 140
Jet Parts Engineering and Victor Sierra Aviation Holdings \| Subsequent Event
Business Combination [Line Items]
Payment to acquire business	$ 2,200

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

REVENUE RECOGNITION

6 Months Ended

Mar. 28, 2026

Revenue from Contract with Customer [Abstract]

REVENUE RECOGNITION

TransDigm's sales are concentrated in the aerospace and defense industry. The Company’s customers include: distributors of aerospace components, commercial airlines, large commercial transport and regional and business aircraft OEMs, various armed forces of the United States (“U.S.”) and friendly foreign governments, defense OEMs, system suppliers, and various other industrial customers.

The Company recognizes revenue from contracts with customers using the five step model prescribed in ASC 606. A substantial portion of the Company's revenue is recorded at a point in time basis. Revenue is recognized from the sale of products or services when obligations under the terms of the contract are satisfied and control of promised goods or services has transferred to the customer. Control is transferred when the customer has the ability to direct the use of and obtain benefits from the goods or services. Revenue is measured at the amount of consideration the Company expects to be paid in exchange for goods or services.

In a limited number of contracts, control transfers to the customer over time, primarily in contracts where the customer is required to pay for the cost of both the finished and unfinished goods at the time of cancellation plus a reasonable profit relative to the work performed for products that were customized for the customer. Therefore, we recognize revenue over time for those agreements that have a right to margin and where the products being produced have no alternative use.

Based on our production cycle, it is generally expected that goods related to the revenue will be shipped and billed within twelve months. For revenue recognized over time, we estimate the amount of revenue attributable to a contract earned at a given point during the production cycle based on certain costs, such as materials and labor incurred to date, plus the expected profit, which is a cost-to-cost input method.

We consider the contractual consideration payable by the customer and assess variable consideration that may affect the total transaction price. Variable consideration is included in the estimated transaction price when there is a basis to reasonably estimate the amount, including whether the estimate should be constrained in order to avoid a significant reversal of revenue in a future period. These estimates are based on historical experience, anticipated performance under the terms of the contract and our best judgment at the time.

When contracts are modified to account for changes in contract specifications and requirements, the Company considers whether the modification either creates new or changes the existing enforceable rights and obligations. Contract modifications that are for goods or services that are not distinct from the existing contract, due to the significant integration with the original good or service provided, are accounted for as if they were part of that existing contract. The effect of a contract modification to an existing contract on the transaction price and our measure of progress for the performance obligation to which it relates, is recognized as an adjustment to revenue on a cumulative catch-up basis. When the modifications include additional performance obligations that are distinct and at relative stand-alone selling price, they are accounted for as a new contract and performance obligation, which are recognized prospectively.

The Company’s payment terms vary by the type and location of the customer and the products or services offered. The Company does not offer any payment terms that would meet the requirements for consideration as a significant financing component.

Shipping and handling fees and costs incurred in connection with products sold are recorded in cost of sales in the consolidated statements of income, and are not considered a performance obligation to our customers.

The Company pays sales commissions that relate to contracts for products or services that are satisfied at a point in time or over a period of one year or less and are expensed as incurred. These costs are reported as a component of selling and administrative expenses in the condensed consolidated statements of income.

We have elected to adopt the practical expedient to not disclose the aggregate amount of transaction price allocated to performance obligations that are unsatisfied as of the end of the reporting period for performance obligations that are part of a contract with an original expected duration of one year or less.

Contract Assets and Liabilities – Contract assets reflect revenue recognized and performance obligations satisfied in advance of customer billing or reimbursable costs related to a specific contract. Contract liabilities (Deferred revenue) relate to payments received in advance of the satisfaction of performance under the contract. We receive payments from customers based on the terms established in our contracts. The following table summarizes our contract assets and liabilities balances (in millions):


	March 28, 2026		September 30, 2025
Contract assets, current (1)	$	311	$	280
Contract assets, non-current (2)	111		94
Total contract assets	422		374
Contract liabilities, current (3)	145		143
Contract liabilities, non-current (4)	6		7
Total contract liabilities	151		150
Net contract assets	$	271	$	224

(1)Included in prepaid expenses and other on the condensed consolidated balance sheets.

(2)Included in other non-current assets on the condensed consolidated balance sheets.

(3)Included in accrued and other current liabilities on the condensed consolidated balance sheets.

(4)Included in other non-current liabilities on the condensed consolidated balance sheets.

For the twenty-six week period ended March 28, 2026, the revenue recognized that was included in the contract liability balance at the beginning of the fiscal year was approximately $87 million.

Refer to Note 12, “Segments,” for disclosures related to the disaggregation of revenue.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-12

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479806/606-10-50-13

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org/606/tableOfContent

+ Details

INVENTORIES (Tables)

6 Months Ended

Mar. 28, 2026

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following (in millions):


	March 28, 2026		September 30, 2025
Raw materials and purchased component parts	$	1,466	$	1,295
Work-in-progress	681		543
Finished goods	253		257
Inventories—Net	$	2,400	$	2,095

GOODWILL AND INTANGIBLE ASSETS (Tables)

6 Months Ended

Mar. 28, 2026

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of Changes in Carrying Value of Goodwill

The following is a summary of changes in the carrying value of goodwill by segment from September 30, 2025 through March 28, 2026 (in millions):


	Power & Control		Airframe		Non-aviation		Total
Balance at September 30, 2025	$	5,273	$	5,260	$	79	$	10,612
Goodwill acquired during the period	365		60		—		425
Purchase price allocation adjustments	21		—		—		21
Currency translation adjustments and other	(15)		(5)		—		(20)
Balance at March 28, 2026	$	5,644	$	5,315	$	79	$	11,038

Intangible Assets Subject to Amortization

Other intangible assets–net in the condensed consolidated balance sheets consist of the following (in millions):


	March 28, 2026						September 30, 2025
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Trademarks and trade names	$	1,213	$	—	$	1,213	$	1,162	$	—	$	1,162
Technology	2,894		1,196		1,698		2,647		1,137		1,510
Order backlog	70		43		27		59		28		31
Customer relationships	1,156		255		901		971		225		746
Other	12		7		5		12		7		5
Total	$	5,345	$	1,501	$	3,844	$	4,851	$	1,397	$	3,454

Summary of Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination


	Gross Amount		Amortization Period
Intangible assets not subject to amortization:
Trademarks and trade names	$	53

Intangible assets subject to amortization:
Technology & Other	261		10 to 20 years
Order backlog	13		1 to 3 years
Customer relationships	186		10 to 20 years
	460

Total	$	513

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 24
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482548/350-20-55-24

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (g)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-1A

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 350
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482573/350-20-50-2

+ Details

ACQUISITIONS - Other Acquisitions (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Mar. 28, 2026	Mar. 29, 2025	Sep. 30, 2025
Business Combination [Line Items]
Payment to acquire business	$ 1,000	$ 140
GOODWILL	$ 11,038		$ 10,612
Minimum
Business Combination [Line Items]
Air transportation equipment estimated useful Life	25 years
Maximum
Business Combination [Line Items]
Air transportation equipment estimated useful Life	30 years
Other Acquisitions
Business Combination [Line Items]
Payment to acquire business	$ 243		284
Amount of goodwill expected to be tax deductible	75		147
GOODWILL	113		147
Business acquisition, intangible assets, expected tax deductible amount	65		90
Other intangible assets recognized for the acquisition	$ 88		$ 90
Goodwill and intangible assets, deductible for tax purposes, term	15 years		15 years

EARNINGS PER SHARE - Computation of Basic and Diluted EPS (two-class method) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions

3 Months Ended

6 Months Ended

Mar. 28, 2026

Mar. 29, 2025

Mar. 28, 2026

Mar. 29, 2025

Numerator for earnings per share:

Net income

$ 536

$ 479

$ 981

$ 972

Less: Net income attributable to noncontrolling interests

Net income attributable to TD Group

535

479

980

972

Less: Dividends paid on participating securities

(59)

(49)

Net income applicable to TD Group common stockholders—basic and diluted

$ 535

$ 479

$ 921

$ 923

Denominator for basic and diluted earnings per share under the two-class method:

Weighted-average common shares outstanding - basic (in shares)

56.4

56.1

56.4

56.2

Weighted-average common shares outstanding - diluted (in shares)

56.4

56.1

56.4

56.2

Vested options deemed participating securities

1.8

2.0

1.8

2.0

Weighted-average shares outstanding - basic (in shares)

58.2

58.1

58.2

Weighted-average shares outstanding - diluted (in shares)

58.2

58.1

58.2

Earnings per share - basic (in usd per share)

^[1]

$ 9.20

$ 8.24

$ 15.82

$ 15.86

Earnings per share - diluted (in usd per share)

^[1]

$ 9.20

$ 8.24

$ 15.82

$ 15.86

[1]	Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated using unrounded numbers.

BASIS OF PRESENTATION (Policies)	6 Months Ended
BASIS OF PRESENTATION (Policies)	Mar. 28, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	Principles of Consolidation The financial information included herein is unaudited; however, the information reflects all adjustments (consisting of normal recurring adjustments) that are, in the opinion of management, necessary for a fair presentation of the Company’s condensed consolidated financial statements for the interim periods presented. These financial statements and notes should be read in conjunction with the financial statements and related notes for the fiscal year ended September 30, 2025 included in TD Group’s Annual Report on Form 10-K filed on November 12, 2025. As disclosed therein, the Company’s annual consolidated financial statements were prepared in conformity with generally accepted accounting principles in the United States (“U.S. GAAP”). The September 30, 2025 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the twenty-six week period ended March 28, 2026 are not necessarily indicative of the results to be expected for the full year.
Reclassifications	Reclassifications Certain reclassifications have been made to the prior year amounts to conform to the current year presentation, none of which are material.
New Accounting Pronouncements Adopted and Issued	New Accounting Pronouncements Adopted In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” ASU 2023-07 expands disclosures about a public business entity's reportable segments and provides for more detailed information about a reportable segment's expenses. Additionally, ASU 2023-07 requires all segment profit or loss and assets disclosures to be provided on an annual and interim basis. This standard is effective for annual periods beginning after December 15, 2023 (fiscal 2025) and interim periods within fiscal years beginning one year later (fiscal 2026). The Company adopted this standard in the fourth quarter of fiscal 2025. Refer to Note 12, “Segments,” for further information. Recent Accounting Pronouncements Issued In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which requires a public business entity to disclose specific categories in its annual effective tax rate reconciliation and disaggregated information about significant reconciling items by jurisdiction and by nature. The ASU also requires entities to disclose their income tax payments (net of refunds) to international, federal, and state and local jurisdictions. The standard makes several other changes to income tax disclosure requirements. This standard is effective for annual periods beginning after December 15, 2024 (fiscal 2026), and requires prospective application with the option to apply it retrospectively. The Company will adopt this standard in the fourth quarter of fiscal 2026 and expects to apply it prospectively. This standard will expand our annual income tax disclosures, but will not impact our consolidated balance sheets, results of operations or cash flows. In November 2024, the FASB issued ASU 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” Additionally, in January 2025, the FASB issued ASU 2025-01 to clarify the effective date of ASU 2024-03. The standard requires, among other items, additional disaggregated disclosures in the notes to financial statements for certain categories of expenses that are included on the face of the statement of income. The standard is effective for fiscal years beginning after December 15, 2026 (fiscal 2028), and for interim periods within fiscal years beginning after December 15, 2027 (fiscal 2029), on a retrospective or prospective basis, with early adoption permitted. The Company is currently evaluating this standard to determine its impact on our disclosures.

DERIVATIVES AND HEDGING ACTIVITIES (Tables)

6 Months Ended

Mar. 28, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions

The tables below summarize the key terms of the swaps and collars as of March 28, 2026 (aggregated by effective date).

Interest rate swap agreements:

Aggregate Notional Amount (in millions)

Effective Date

Maturity Date

Conversion of Related Variable Rate Debt subject to Term SOFR to Fixed Rate of:

$700

9/30/2025

9/30/2027

3.22% plus applicable margin percentage

$125

9/30/2027

9/30/2029

3.11% plus applicable margin percentage

$1,025

9/30/2027

9/30/2029

3.12% plus applicable margin percentage

$900

9/30/2027

9/30/2029

3.14% plus applicable margin percentage

Interest rate collar agreements:

Aggregate Notional Amount (in millions)

Effective Date

Maturity Date

Offsets Variable Rate Debt Attributable to Fluctuations Below and Above:

$1,100

3/31/2025

9/30/2026

Three-month Term SOFR rate of 2.00% (floor) and 3.50% (cap)

$500

9/30/2025

9/30/2026

Three-month Term SOFR rate of 2.00% (floor) and 3.50% (cap)

$1,338

9/30/2025

9/30/2027

Three-month Term SOFR rate of 2.50% (floor) and 4.50% (cap)

$700

9/30/2025

9/30/2027

Three-month Term SOFR rate of 2.00% (floor) and 3.91% (cap)

$1,550

9/30/2026

9/30/2027

Three-month Term SOFR rate of 2.50% (floor) and 4.50% (cap)

$2,050

9/30/2027

9/30/2029

Three-month Term SOFR rate of 2.21% (floor) and 4.25% (cap)

Schedule of Interest Rate Derivatives


	March 28, 2026				September 30, 2025
	Asset		Liability		Asset		Liability

Interest rate collar agreements	$	13	$	—	$	7	$	3
Interest rate swap agreements	23		—		8		—
Net derivatives as classified in the condensed consolidated balance sheets (1)	$	36	$	—	$	15	$	3

(1)Refer to Note 10, “Fair Value Measurements,” for the condensed consolidated balance sheets classification of the Company's interest rate swap and collar agreements.

DERIVATIVES AND HEDGING ACTIVITIES - Schedule of Notional Amounts of Outstanding Derivative Positions (Details) $ in Millions	Mar. 28, 2026 USD ($)
3.22% Interest rate swap, effective September 30, 2025 and maturing September 30, 2027
Derivative [Line Items]
Derivative, Notional Amount	$ 700
Derivative, Basis Spread on Variable Rate	3.22%
3.11% Interest rate swap, effective September 30, 2027 and maturing September 30, 2029
Derivative [Line Items]
Derivative, Notional Amount	$ 125
Derivative, Basis Spread on Variable Rate	3.11%
3.12% Interest rate swap, effective September 30, 2027 and maturing September 30, 2029
Derivative [Line Items]
Derivative, Notional Amount	$ 1,025
Derivative, Basis Spread on Variable Rate	3.12%
3.14% Interest rate swap, effective September 30, 2027 and maturing September 30, 2029
Derivative [Line Items]
Derivative, Notional Amount	$ 900
Derivative, Basis Spread on Variable Rate	3.14%
2.00%-3.50% Interest rate collar, effective March 31, 2025 and Maturing September 30, 2026
Derivative [Line Items]
Derivative, Notional Amount	$ 1,100
2.00%-3.50% Interest rate collar, effective March 31, 2025 and Maturing September 30, 2026 \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate	2.00%
2.00%-3.50% Interest rate collar, effective March 31, 2025 and Maturing September 30, 2026 \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate	3.50%
2.00-3.50% Interest rate collar, effective September 30, 2025 and maturing September 30, 2026
Derivative [Line Items]
Derivative, Notional Amount	$ 500
2.00-3.50% Interest rate collar, effective September 30, 2025 and maturing September 30, 2026 \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate	2.00%
2.00-3.50% Interest rate collar, effective September 30, 2025 and maturing September 30, 2026 \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate	3.50%
2.50-4.50% Interest rate collar, effective September 30, 2025 and maturing September 30, 2027
Derivative [Line Items]
Derivative, Notional Amount	$ 1,338
2.50-4.50% Interest rate collar, effective September 30, 2025 and maturing September 30, 2027 \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate	2.50%
2.50-4.50% Interest rate collar, effective September 30, 2025 and maturing September 30, 2027 \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate	4.50%
2.00-3.91% Interest rate collar, effective September 30, 2025 and maturing September 30, 2027
Derivative [Line Items]
Derivative, Notional Amount	$ 700
2.00-3.91% Interest rate collar, effective September 30, 2025 and maturing September 30, 2027 \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate	2.00%
2.00-3.91% Interest rate collar, effective September 30, 2025 and maturing September 30, 2027 \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate	3.91%
2.50-4.50% Interest rate collar, effective September 30, 2026 and maturing September 30, 2027
Derivative [Line Items]
Derivative, Notional Amount	$ 1,550
2.50-4.50% Interest rate collar, effective September 30, 2026 and maturing September 30, 2027 \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate	2.50%
2.50-4.50% Interest rate collar, effective September 30, 2026 and maturing September 30, 2027 \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate	4.50%
2.211-4.25% Interest rate collar, effective September 30, 2027 and maturing September 30, 2029
Derivative [Line Items]
Derivative, Notional Amount	$ 2,050
2.211-4.25% Interest rate collar, effective September 30, 2027 and maturing September 30, 2029 \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate	2.21%
2.211-4.25% Interest rate collar, effective September 30, 2027 and maturing September 30, 2029 \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate	4.25%

EARNINGS PER SHARE (Tables)

6 Months Ended

Mar. 28, 2026

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share data) using the two-class method:


	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March 28, 2026		March 29, 2025		March 28, 2026		March 29, 2025
Numerator for earnings per share:
Net income	$	536	$	479	$	981	$	972
Less: Net income attributable to noncontrolling interests	(1)		—		(1)		—
Net income attributable to TD Group	535		479		980		972
Less: Dividends paid on participating securities	—		—		(59)		(49)

Net income applicable to TD Group common stockholders—basic and diluted	$	535	$	479	$	921	$	923
Denominator for basic and diluted earnings per share under the two-class method:
Weighted-average common shares outstanding	56.4		56.1		56.4		56.2
Vested options deemed participating securities	1.8		2.0		1.8		2.0
Total shares for basic and diluted earnings per share	58.2		58.1		58.2		58.2


Earnings per share—basic and diluted (1)	$	9.20	$	8.24	$	15.82	$	15.86

(1)Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated using unrounded numbers.

ACCUMULATED OTHER COMPREHENSIVE LOSS

6 Months Ended

Mar. 28, 2026

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE LOSS

The following table presents the total changes by component in accumulated other comprehensive loss (“AOCL”), net of taxes, for the twenty-six week periods ended March 28, 2026 and March 29, 2025 (in millions):


	Unrealized gains (losses) on derivatives (1)		Pension and post-retirement benefit plans adjustment (2)		Foreign currency translation adjustment (3)		Total
Balance at September 30, 2025	$	(4)	$	(2)	$	(4)	$	(10)


Net current-period other comprehensive income (loss) (4)	22		—		(32)		(10)
Balance at March 28, 2026	$	18	$	(2)	$	(36)	$	(20)

Balance at September 30, 2024	$	19	$	1	$	(62)	$	(42)


Net current-period other comprehensive loss (4)	(2)		—		(127)		(129)
Balance at March 29, 2025	$	17	$	1	$	(189)	$	(171)

(1)Represents unrealized gains (losses) on derivatives designated and qualifying as cash flow hedges, net of tax (expense) benefit, of $5 million and $8 million for the thirteen week periods ended March 28, 2026 and March 29, 2025, respectively, and $7 million and $1 million for the twenty-six week periods ended March 28, 2026 and March 29, 2025, respectively.

(2)There were no material pension liability adjustments, net of taxes, related to activity for the defined pension plans and postretirement benefit plans for the thirteen and twenty-six week periods ended March 28, 2026 and March 29, 2025.

(3)Represents gains (losses) resulting from foreign currency translation of financial statements, including gains (losses) from certain intercompany transactions, into U.S. dollars at the rates of exchange in effect at the balance sheet dates.

(4)Presented net of reclassifications out of AOCL into earnings, specifically net sales and interest expense-net, for realized (losses) gains on derivatives designated and qualifying as cash flow hedges of $7 million (net of taxes of $2 million) and $(1) million (net of taxes of less than $(1) million), respectively, for the twenty-six week period ended March 28, 2026 and $(1) million (net of taxes of less than $(1) million) and $18 million (net of taxes of $6 million), respectively, for the twenty-six week period ended March 29, 2025.

DERIVATIVES AND HEDGING ACTIVITIES - Narratives (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 28, 2026	Apr. 30, 2026	Sep. 30, 2025
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer	12 months
Interest Rate Collar \| Subsequent Event
Derivative [Line Items]
Derivative, Notional Amount		$ 800
Interest Rate Collar \| Subsequent Event \| Minimum
Derivative [Line Items]
Derivative, Variable Interest Rate		2.50%
Interest Rate Collar \| Subsequent Event \| Maximum
Derivative [Line Items]
Derivative, Variable Interest Rate		4.50%
Foreign Exchange Forward Exchange Contracts
Derivative [Line Items]
Derivative, Notional Amount	$ 61
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Earnings, net of Tax, Next 12 months (Estimated)	2
Interest Rate Swap, Cap and Collar Agreements
Derivative [Line Items]
Derivative, Notional Amount			$ 2,750
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	$ (3)

INCOME TAXES - Narratives (Details)	3 Months Ended		6 Months Ended
INCOME TAXES - Narratives (Details)	Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Income Tax Disclosure [Abstract]
Effective income tax rate	23.40%	23.00%	22.90%	21.70%

REVENUE RECOGNITION - Schedule of Contract Assets and Liabilities (Details) - USD ($)
$ in Millions

Mar. 28, 2026

Sep. 30, 2025

Schedule of Contract Assets and Liabilities [Line Items]

Total contract assets

$ 422

$ 374

Total contract liabilities

151

150

Net Contract Asset

271

224

Prepaid Expenses and Other Current Assets

Schedule of Contract Assets and Liabilities [Line Items]

Contract assets, current

^[1]

311

280

Other non-current assets

Schedule of Contract Assets and Liabilities [Line Items]

Contract assets, non-current

^[2]

111

Accrued and Other Current Liabilities

Schedule of Contract Assets and Liabilities [Line Items]

Contract liabilities, current

^[3]

145

143

Other non-current liabilities

Schedule of Contract Assets and Liabilities [Line Items]

Contract liabilities, non-current

^[4]

$ 6

$ 7

[1]	Included in prepaid expenses and other on the condensed consolidated balance sheets.
[2]	Included in other non-current assets on the condensed consolidated balance sheets.
[3]	Included in accrued and other current liabilities on the condensed consolidated balance sheets.
[4]	Included in other non-current liabilities on the condensed consolidated balance sheets.

CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($)
shares in Millions, $ in Millions

3 Months Ended

6 Months Ended

Mar. 28, 2026

Mar. 29, 2025

Mar. 28, 2026

Mar. 29, 2025

Income Statement [Abstract]

NET SALES

$ 2,544

$ 2,150

$ 4,828

$ 4,156

COST OF SALES

1,033

876

1,965

1,647

GROSS PROFIT

1,511

1,274

2,863

2,509

SELLING AND ADMINISTRATIVE EXPENSES

273

236

527

447

AMORTIZATION OF INTANGIBLE ASSETS

116

INCOME FROM OPERATIONS

1,178

991

2,220

1,965

INTEREST EXPENSE—NET

484

378

959

756

OTHER INCOME

INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES

700

622

1,272

1,241

INCOME TAX PROVISION

164

143

291

269

NET INCOME

536

479

981

972

LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS

(1)

NET INCOME ATTRIBUTABLE TO TD GROUP

535

479

980

972

Supplemental Income Statement Elements [Abstract]

NET INCOME APPLICABLE TO TD GROUP COMMON STOCKHOLDERS

$ 535

$ 479

$ 921

$ 923

Earnings per share attributable to TD Group common stockholders:

Earnings per share - basic (in usd per share)

^[1]

$ 9.20

$ 8.24

$ 15.82

$ 15.86

Earnings per share - diluted (in usd per share)

^[1]

$ 9.20

$ 8.24

$ 15.82

$ 15.86

Weighted-average shares outstanding:

Weighted-average shares outstanding - basic (in shares)

58.2

58.1

58.2

Weighted-average shares outstanding - diluted (in shares)

58.2

58.1

58.2

[1]	Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated using unrounded numbers.

DERIVATIVES AND HEDGING ACTIVITIES

6 Months Ended

Mar. 28, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVES AND HEDGING ACTIVITIES

The Company is exposed to, among other things, the impact of changes in foreign currency exchange rates and interest rates in the normal course of business. The Company’s risk management program is designed to manage the exposure and volatility arising from these risks, and utilizes derivative financial instruments to offset a portion of these risks. The Company uses derivative financial instruments only to the extent necessary to hedge identified business risks and does not enter into such transactions for trading purposes. The Company generally does not require collateral or other security with counterparties to these financial instruments and is therefore subject to credit risk in the event of nonperformance; however, the Company monitors credit risk and currently does not anticipate nonperformance by other parties. These derivative financial instruments do not subject the Company to undue risk, as gains and losses on these instruments generally offset gains and losses on the underlying assets, liabilities, or anticipated transactions that are being hedged. The Company has agreements with each of its swap, cap and collar counterparties that contain a provision whereby if the Company defaults on the Credit Agreement, the Company could also be declared in default on its swaps, cap and collars resulting in an acceleration of settlement under the swaps, cap and collars.

All derivative financial instruments are recorded at fair value in the condensed consolidated balance sheets. For a derivative that has not been designated as an accounting hedge, the change in the fair value is recognized immediately through earnings. For a derivative that has been designated as an accounting hedge of an existing asset or liability (a fair value hedge), the change in the fair value of both the derivative and underlying asset or liability is recognized immediately through earnings. For a derivative designated as an accounting hedge of an anticipated transaction (a cash flow hedge), the change in the fair value is recorded on the condensed consolidated balance sheets in accumulated other comprehensive loss to the extent the derivative is effective in mitigating the exposure related to the anticipated transaction. The change in the fair value related to the ineffective portion of the hedge, if any, is immediately recognized in earnings. The amount recorded within accumulated other comprehensive loss is reclassified into earnings in the same period during which the underlying hedged transaction affects earnings.

Interest Rate Swap, Cap and Collar Agreements – Interest rate swap, cap and collar agreements are used to manage interest rate risk associated with floating rate borrowings, specifically the term loans, under our Credit Agreement. These agreements involve the receipt of floating rate amounts in exchange for fixed rate interest payments over the term of the agreements without an exchange of the underlying principal amount. The agreements utilized by the Company effectively modify the Company’s exposure to interest rate risk by converting a portion of the Company’s floating rate debt to a fixed rate basis from the effective date through the maturity date of the respective interest rate swap, cap and collar agreements, thereby reducing the impact of interest rate movements on future interest expense.

During the fourth quarter of fiscal 2025, we entered into forward starting interest rate collar agreements and interest rate swap agreements. The interest rate collar agreements, aggregating to a notional amount of $2,750 million, establish a range where we will pay the counterparties if the elected tenor's Term SOFR rate falls below the established floor rate, and the counterparties will pay us if the elected tenor's Term SOFR rate exceeds the ceiling rate as summarized in the table below. The collar will settle quarterly from the effective date through the maturity date. No payments or receipts will be exchanged on the interest rate collar contracts unless interest rates rise above or fall below the contracted ceiling or floor rates. The interest rate swap agreements hedge the variable interest rates on the Company's floating rate debt exposures for a fixed rate based on an aggregate notional amount of $2,750 million. The swap will settle quarterly from the effective date through the maturity date. The Company does not have any interest rate cap agreements as of March 28, 2026.

The tables below summarize the key terms of the swaps and collars as of March 28, 2026 (aggregated by effective date).

Interest rate swap agreements:

Aggregate Notional Amount (in millions)

Effective Date

Maturity Date

Conversion of Related Variable Rate Debt subject to Term SOFR to Fixed Rate of:

$700

9/30/2025

9/30/2027

3.22% plus applicable margin percentage

$125

9/30/2027

9/30/2029

3.11% plus applicable margin percentage

$1,025

9/30/2027

9/30/2029

3.12% plus applicable margin percentage

$900

9/30/2027

9/30/2029

3.14% plus applicable margin percentage

Interest rate collar agreements:

Aggregate Notional Amount (in millions)

Effective Date

Maturity Date

Offsets Variable Rate Debt Attributable to Fluctuations Below and Above:

$1,100

3/31/2025

9/30/2026

Three-month Term SOFR rate of 2.00% (floor) and 3.50% (cap)

$500

9/30/2025

9/30/2026

Three-month Term SOFR rate of 2.00% (floor) and 3.50% (cap)

$1,338

9/30/2025

9/30/2027

Three-month Term SOFR rate of 2.50% (floor) and 4.50% (cap)

$700

9/30/2025

9/30/2027

Three-month Term SOFR rate of 2.00% (floor) and 3.91% (cap)

$1,550

9/30/2026

9/30/2027

Three-month Term SOFR rate of 2.50% (floor) and 4.50% (cap)

$2,050

9/30/2027

9/30/2029

Three-month Term SOFR rate of 2.21% (floor) and 4.25% (cap)

These derivative instruments qualify as effective cash flow hedges under U.S. GAAP. For our cash flow hedges, the effective portion of the gain or loss from the financial instruments is initially reported as a component of accumulated other comprehensive loss in stockholders’ deficit and subsequently reclassified into earnings in the same line as the hedged item in the same period or periods during which the hedged item affects earnings. As the interest rate swap, cap and collar agreements are used to manage interest rate risk, any gains or losses from the derivative instruments that are reclassified into earnings are recognized in interest expense-net in the condensed consolidated statements of income. Cash flows related to the derivative contracts are included in cash flows from operating activities on the condensed consolidated statements of cash flows.

Certain derivative asset and liability balances are offset where master netting agreements provide for the legal right of setoff. For classification purposes, we record the net fair value of each type of derivative position that is expected to settle in less than one year with each counterparty as a net current asset or liability and each type of long-term position as a net non-current asset or liability. The amounts shown in the table below represent the gross amounts of recognized assets and liabilities, the amounts offset in the condensed consolidated balance sheets and the net amounts of assets and liabilities presented therein (in millions):


	March 28, 2026				September 30, 2025
	Asset		Liability		Asset		Liability

Interest rate collar agreements	$	13	$	—	$	7	$	3
Interest rate swap agreements	23		—		8		—
Net derivatives as classified in the condensed consolidated balance sheets (1)	$	36	$	—	$	15	$	3

(1)Refer to Note 10, “Fair Value Measurements,” for the condensed consolidated balance sheets classification of the Company's interest rate swap and collar agreements.

Based on the fair value amounts determined as of March 28, 2026, the estimated net amount of existing losses (gains) and caplet amortization expected to be reclassified into interest expense-net within the next twelve months is approximately $3 million.

Subsequent Event – New Interest Rate Collars – In April 2026, the Company entered into new interest rate collar agreements aggregating to a notional amount of $800 million with an effective date of June 30, 2026 and maturity date of September 30, 2030. The rate floor is 2.50% and cap is 4.50%. The terms are similar to the Company's existing interest rate collar agreements.

Foreign Currency Forward Exchange Contracts – The Company transacts business in various foreign currencies, which subjects the Company’s cash flows and earnings to exposure related to changes in foreign currency exchange rates. These exposures arise primarily from purchases or sales of products and services from third parties. Foreign currency forward exchange contracts provide for the purchase or sale of foreign currencies at specified future dates at specified exchange rates, and are used to offset changes in the fair value of certain assets or liabilities or forecasted cash flows resulting from transactions denominated in foreign currencies. At March 28, 2026, the Company has outstanding foreign currency forward exchange contracts to sell U.S. dollars with notional amounts of $61 million. The maximum duration of the Company’s foreign currency cash flow hedge contracts at March 28, 2026 is six months. These notional values consist of contracts for the Canadian dollar and the euro and are stated in U.S. dollar equivalents at spot exchange rates at the respective trade dates. Amounts related to foreign currency forward exchange contracts included in accumulated other comprehensive loss in stockholders' deficit are reclassified into net sales when the hedged transaction settles. As of March 28, 2026, the Company expects to record a net loss of approximately $2 million on foreign currency forward exchange contracts designated as cash flow hedges to net sales over the next twelve months.

- Definition

The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts.

+ References

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Reference 13: http://www.xbrl.org/2003/role/exampleRef
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+ Details

EARNINGS PER SHARE

6 Months Ended

Mar. 28, 2026

Earnings Per Share [Abstract]

EARNINGS PER SHARE (TWO-CLASS METHOD)

EARNINGS PER SHARE

The following table sets forth the computation of basic and diluted earnings per share (in millions, except per share data) using the two-class method:


	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March 28, 2026		March 29, 2025		March 28, 2026		March 29, 2025
Numerator for earnings per share:
Net income	$	536	$	479	$	981	$	972
Less: Net income attributable to noncontrolling interests	(1)		—		(1)		—
Net income attributable to TD Group	535		479		980		972
Less: Dividends paid on participating securities	—		—		(59)		(49)

Net income applicable to TD Group common stockholders—basic and diluted	$	535	$	479	$	921	$	923
Denominator for basic and diluted earnings per share under the two-class method:
Weighted-average common shares outstanding	56.4		56.1		56.4		56.2
Vested options deemed participating securities	1.8		2.0		1.8		2.0
Total shares for basic and diluted earnings per share	58.2		58.1		58.2		58.2


Earnings per share—basic and diluted (1)	$	9.20	$	8.24	$	15.82	$	15.86

(1)Figures in the table may not recalculate exactly due to rounding. Earnings per share is calculated using unrounded numbers.

SEGMENTS - Narratives (Details)	6 Months Ended
SEGMENTS - Narratives (Details)	Mar. 28, 2026 Segment
Segment Reporting [Abstract]
Number of reporting segments	3

INVENTORIES

6 Months Ended

Mar. 28, 2026

Inventory Disclosure [Abstract]

INVENTORIES

Inventories are stated at the lower of cost or net realizable value. Cost of inventories is generally determined by the average cost and the first–in, first–out (“FIFO”) methods and includes material, labor and overhead related to the manufacturing process.

Inventories consist of the following (in millions):


	March 28, 2026		September 30, 2025
Raw materials and purchased component parts	$	1,466	$	1,295
Work-in-progress	681		543
Finished goods	253		257
Inventories—Net	$	2,400	$	2,095

FAIR VALUE MEASUREMENTS - Carrying Amounts and Fair Values of Financial Instruments (Details) - USD ($)
$ in Millions

Mar. 28, 2026

Sep. 30, 2025

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Cash and cash equivalents

$ 3,884

$ 2,808

Short-term borrowings—trade receivable securitization facility

724

Long-term Debt

31,279

Prepaid Expenses and Other Current Assets

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Interest Rate Swap Asset Carrying Amount

^[1]

Interest Rate Collar Assets

^[1]

Other non-current assets

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Interest Rate Swap Asset Carrying Amount

^[2]

Interest Rate Collar Assets

^[2]

Accrued and other current liabilities

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Foreign Currency Contract, Liability

^[3]

Other non-current liabilities

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Interest Rate Collar Agreement, Liability

^[4]

Term loans

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

11,816

11,048

Government refundable advances

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

Finance Lease Obligations

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

303

284

Level 1

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Cash and cash equivalents, Fair Value

3,884

2,808

Level 2 | Prepaid Expenses and Other Current Assets

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Interest Rate Swap Asset at Fair Value

^[1]

Interest Rate Collar Assets

^[1]

Level 2 | Other non-current assets

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Interest Rate Swap Asset at Fair Value

^[2]

Interest Rate Collar Assets

^[2]

Level 2 | Accrued and other current liabilities

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Foreign Currency Contract, Liability

^[3]

Level 2 | Other non-current liabilities

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Interest Rate Collar Agreement, Liability

^[4]

Level 2 | Term loans

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

11,909

11,120

Level 2 | Government refundable advances

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

Level 2 | Finance Lease Obligations

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

303

284

Senior Secured Notes $2,100M due 2028 6.75% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

2,086

2,083

Senior Secured Notes $2,100M due 2028 6.75% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

2,126

2,139

Senior Subordinated Notes $1200M Due 2029 4.625% | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

1,196

1,195

Senior Subordinated Notes $1200M Due 2029 4.625% | Level 1 | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

1,176

1,175

Senior Secured Notes $2,750M due 2029 6.375% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

2,734

2,732

Senior Secured Notes $2,750M due 2029 6.375% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

2,784

2,812

Senior Subordinated Notes $750M due 2029 4.875% | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

747

Senior Subordinated Notes $750M due 2029 4.875% | Level 1 | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

735

739

Senior Secured Notes $1,450M due 2030 6.875% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

1,441

1,440

Senior Secured Notes $1,450M due 2030 6.875% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

1,484

1,501

Senior Secured Notes $1,000M due 2031 7.125% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

988

986

Senior Secured Notes $1,000M due 2031 7.125% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

1,030

1,041

Senior Secured Notes $2,200M due 2032 6.625% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

2,184

2,183

Senior Secured Notes $2,200M due 2032 6.625% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

2,244

2,263

Senior Secured Notes $1,500M due 2033 6.00% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

1,489

1,488

Senior Secured Notes $1,500M due 2033 6.00% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

1,496

1,517

Senior Subordinated Notes $2,650M due 2033 6.375% | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

2,619

2,616

Senior Subordinated Notes $2,650M due 2033 6.375% | Level 1 | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

2,640

2,686

Senior Secured Notes $500M due 2034 6.250% | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

496

495

Senior Secured Notes $500M due 2034 6.250% | Level 1 | Secured Debt

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

504

514

Senior Subordinated Notes $2,000M due 2034 6.750% | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

1,983

1,982

Senior Subordinated Notes $2,000M due 2034 6.750% | Level 1 | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

2,028

2,068

Senior Subordinated Notes $1,200M due 2034 6.125% | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term Debt

^[5]

1,189

Senior Subordinated Notes $1,200M due 2034 6.125% | Level 1 | Senior Subordinated Notes

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Long-term debt, including current portion, Fair Value

^[5]

1,158

Asset-backed Securities

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Short-term borrowings—trade receivable securitization facility

^[5]

724

Asset-backed Securities | Level 2

Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]

Short-term borrowings - trade receivable securitization facility, Fair Value

^[5]

$ 724

[1]	Included in prepaid expenses and other on the condensed consolidated balance sheets.
[2]	Included in other non-current assets on the condensed consolidated balance sheets.
[3]	Included in accrued and other current liabilities on the condensed consolidated balance sheets.
[4]	Included in other non-current liabilities on the condensed consolidated balance sheets.
[5]	The carrying amount of the debt instrument is presented net of debt issuance costs and original issue discount.

DEBT - Schedule of Debt (Details) - USD ($)
$ in Millions

Mar. 28, 2026

Feb. 13, 2026

Sep. 30, 2025

Debt Instrument [Line Items]

Gross Amount

$ 31,507

Debt Issuance Costs

(167)

Original Issue Discount

(61)

Long-term Debt

31,279

Long-term Debt, Gross and Lease Obligation

31,377

Deferred Finance Costs, Excluding Current Maturities

(166)

Debt Instrument, Unamortized Discount, Excluding Current Maturities

(61)

Current portion of long-term debt

129

$ 124

LONG-TERM DEBT

31,150

29,167

Term loans

Debt Instrument [Line Items]

Gross Amount

11,896

Debt Issuance Costs

(48)

Original Issue Discount

(32)

Long-term Debt

^[1]

$ 11,816

11,048

Senior Subordinated Notes | Senior Subordinated Notes $1200M Due 2029 4.625%

Debt Instrument [Line Items]

Interest rate

4.625%

Gross Amount

$ 1,200

Debt Issuance Costs

(4)

Original Issue Discount

Long-term Debt

^[1]

$ 1,196

1,195

Senior Subordinated Notes | Senior Subordinated Notes $750M due 2029 4.875%

Debt Instrument [Line Items]

Interest rate

4.875%

Gross Amount

$ 750

Debt Issuance Costs

(3)

Original Issue Discount

Long-term Debt

^[1]

$ 747

747

Senior Subordinated Notes | Senior Subordinated Notes $2,650M due 2033 6.375%

Debt Instrument [Line Items]

Interest rate

6.375%

Gross Amount

$ 2,650

Debt Issuance Costs

(13)

Original Issue Discount

(18)

Long-term Debt

^[1]

$ 2,619

2,616

Senior Subordinated Notes | Senior Subordinated Notes $2,000M due 2034 6.750%

Debt Instrument [Line Items]

Interest rate

6.75%

Gross Amount

$ 2,000

Debt Issuance Costs

(17)

Original Issue Discount

Long-term Debt

^[1]

$ 1,983

1,982

Senior Subordinated Notes | Senior Subordinated Notes $1,200M due 2034 6.125%

Debt Instrument [Line Items]

Interest rate

6.125%

Gross Amount

$ 1,200

Debt Issuance Costs

(11)

Original Issue Discount

Long-term Debt

^[1]

$ 1,189

Secured Debt | Senior Secured Notes $2,100M due 2028 6.75%

Debt Instrument [Line Items]

Interest rate

6.75%

Gross Amount

$ 2,100

Debt Issuance Costs

(9)

Original Issue Discount

(5)

Long-term Debt

^[1]

$ 2,086

2,083

Secured Debt | Senior Secured Notes $2,750M due 2029 6.375%

Debt Instrument [Line Items]

Interest rate

6.375%

Gross Amount

$ 2,750

Debt Issuance Costs

(15)

Original Issue Discount

(1)

Long-term Debt

^[1]

$ 2,734

2,732

Secured Debt | Senior Secured Notes $1,450M due 2030 6.875%

Debt Instrument [Line Items]

Interest rate

6.875%

Gross Amount

$ 1,450

Debt Issuance Costs

(9)

Original Issue Discount

Long-term Debt

^[1]

$ 1,441

1,440

Secured Debt | Senior Secured Notes $1,000M due 2031 7.125%

Debt Instrument [Line Items]

Interest rate

7.125%

Gross Amount

$ 1,000

Debt Issuance Costs

(7)

Original Issue Discount

(5)

Long-term Debt

^[1]

$ 988

986

Secured Debt | Senior Secured Notes $2,200M due 2032 6.625%

Debt Instrument [Line Items]

Interest rate

6.625%

Gross Amount

$ 2,200

Debt Issuance Costs

(16)

Original Issue Discount

Long-term Debt

^[1]

$ 2,184

2,183

Secured Debt | Senior Secured Notes $1,500M due 2033 6.00%

Debt Instrument [Line Items]

Interest rate

6.00%

Gross Amount

$ 1,500

Debt Issuance Costs

(11)

Original Issue Discount

Long-term Debt

^[1]

$ 1,489

1,488

Secured Debt | Senior Secured Notes $500M due 2034 6.250%

Debt Instrument [Line Items]

Interest rate

6.25%

Gross Amount

$ 500

Debt Issuance Costs

(4)

Original Issue Discount

Long-term Debt

^[1]

496

495

Government refundable advances

Debt Instrument [Line Items]

Debt Issuance Costs

Original Issue Discount

Long-term Debt

Government refundable advances

Finance Lease Obligations

Debt Instrument [Line Items]

Debt Issuance Costs

Original Issue Discount

Long-term Debt

303

$ 284

Finance lease obligations

303

Less: current portion

Debt Instrument [Line Items]

Debt Issuance Costs

(1)

Original Issue Discount

Long-term Debt, Current Maturities, Gross

130

Current portion of long-term debt

129

Asset-backed Securities

Debt Instrument [Line Items]

Debt Issuance Costs

(1)

Original Issue Discount

Short-term borrowings—trade receivable securitization facility

$ 725

[1]	The carrying amount of the debt instrument is presented net of debt issuance costs and original issue discount.

DEBT - Additional Information (Details) - USD ($) $ in Millions	Jun. 30, 2026	Apr. 17, 2026	Feb. 13, 2026	Mar. 28, 2026	Sep. 30, 2025
Debt Instrument [Line Items]
Accrued interest				$ 284.0	$ 208.0
Senior Subordinated Notes $1,200M due 2034 6.125% \| Senior Subordinated Notes
Debt Instrument [Line Items]
Debt instrument, face amount			$ 1,200.0
Interest rate			6.125%	6.125%
Redemption price, percentage			100.00%
Capitalized debt issuance costs				$ 11.0
Senior Subordinated Notes $500M due 2034 6.125% \| Senior Subordinated Notes \| Subsequent Event
Debt Instrument [Line Items]
Debt instrument, face amount		$ 500.0
Interest rate		6.125%
Redemption price, percentage		100.375%
Debt instrument, unamortized premium		$ 2.0
Tranche N Term Loans \| Term loans
Debt Instrument [Line Items]
Debt instrument, face amount			$ 800.0
Capitalized debt issuance costs				$ 8.0
Original issue discount rate			0.125%
Debt instrument, unamortized discount			$ 1.0
Tranche N Term Loans \| Term loans \| Forecast
Debt Instrument [Line Items]
Periodic principal payment	$ 4.5
Tranche N Term Loans \| Term loans \| Subsequent Event
Debt Instrument [Line Items]
Debt instrument, face amount		$ 1,000.0
Original issue discount rate		0.125%
Debt instrument, unamortized discount		$ 1.0
Debt instrument, basis spread on variable rate		2.50%

SEGMENTS - Net Sales and EBITDA Defined by Segment to Consolidated Income Before Taxes Operations (Detail) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Mar. 28, 2026

Mar. 29, 2025

Mar. 28, 2026

Mar. 29, 2025

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

$ 2,544

$ 2,150

$ 4,828

$ 4,156

Earnings before interest taxes depreciation and amortization

Depreciation and amortization expense

105

205

179

Interest expense-net

(484)

(378)

959

756

Acquisition transaction and integration-related expenses

Non-cash stock and deferred compensation expense

Other, net

(3)

(16)

(47)

Income from continuing operations before income taxes

700

622

1,272

1,241

Power & Control

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Depreciation and amortization expense

109

Airframe

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Depreciation and amortization expense

Non-aviation

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

Depreciation and amortization expense

Operating Segments

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

2,544

2,150

4,828

4,156

Earnings before interest taxes depreciation and amortization

1,366

1,181

2,587

2,295

Operating Segments | Commercial and non-aerospace OEM

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

603

537

1,137

1,009

Operating Segments | Commercial and non-aerospace aftermarket

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

839

699

1,571

1,371

Operating Segments | Defense

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

1,057

874

2,035

1,703

Operating Segments | Non-aviation

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

Operating Segments | Power & Control

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

1,366

1,108

2,590

2,134

Other segment expenses

632

^[1]

472

^[2]

1,201

^[3]

912

^[4]

Earnings before interest taxes depreciation and amortization

734

636

1,389

1,222

Operating Segments | Power & Control | Commercial and non-aerospace OEM

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

278

232

524

426

Operating Segments | Power & Control | Commercial and non-aerospace aftermarket

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

431

343

802

681

Operating Segments | Power & Control | Defense

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

657

533

1,264

1,027

Operating Segments | Airframe

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

1,133

1,002

2,153

1,949

Other segment expenses

520

^[1]

473

^[2]

990

^[3]

904

^[4]

Earnings before interest taxes depreciation and amortization

613

529

1,163

1,045

Operating Segments | Airframe | Commercial and non-aerospace OEM

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

325

305

613

583

Operating Segments | Airframe | Commercial and non-aerospace aftermarket

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

408

356

769

690

Operating Segments | Airframe | Defense

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

400

341

771

676

Operating Segments | Non-aviation

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

Other segment expenses

^[1]

^[2]

^[3]

^[4]

Earnings before interest taxes depreciation and amortization

Operating Segments | Non-aviation | Non-aviation

Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]

NET SALES

$ 45

$ 40

$ 85

$ 73

[1]	Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses and acquisition transaction and integration-related expenses.
[2]	Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses and acquisition transaction and integration-related expenses.
[3]	Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses; acquisition transaction and integration-related expenses and payroll withholding taxes related to dividend equivalent payments.
[4]	Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses; acquisition transaction and integration-related expenses and payroll withholding taxes related to dividend equivalent payments.

SEGMENTS (Tables)

6 Months Ended

Mar. 28, 2026

Segment Reporting [Abstract]

EBITDA Defined by Segment to Consolidated Income Before Taxes

The following table sets forth, for the periods indicated, certain financial information by reportable segment, which includes a reconciliation of EBITDA As Defined to consolidated income from continuing operations before income taxes (in millions):


	Thirteen Week Period Ended March 28, 2026
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	278	$	325		$	603
Commercial and non-aerospace aftermarket	431		408			839
Defense	657		400			1,057
Non-aviation	—		—		45	45
Net sales	1,366		1,133		45	2,544
Less:
Other segment expenses (1)	632		520		26
Total segment EBITDA As Defined	734		613		19	1,366
Less: Unallocated corporate EBITDA As Defined						29
Depreciation and amortization expense						105
Interest expense-net						484
Acquisition transaction and integration-related expenses						19
Non-cash stock and deferred compensation expense						26

Other, net						3
Income from continuing operations before income taxes						$	700

(1)Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses and acquisition transaction and integration-related expenses.


	Twenty-Six Week Period Ended March 28, 2026
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	524	$	613		$	1,137
Commercial and non-aerospace aftermarket	802		769			1,571
Defense	1,264		771			2,035
Non-aviation	—		—		85	85
Net sales	2,590		2,153		85	4,828
Less:
Other segment expenses (1)	1,201		990		50
Total segment EBITDA As Defined	1,389		1,163		35	2,587
Less: Unallocated corporate EBITDA As Defined						53
Depreciation and amortization expense						205
Interest expense-net						959
Acquisition transaction and integration-related expenses						31
Non-cash stock and deferred compensation expense						53

Other, net						14
Income from continuing operations before income taxes						$	1,272

(1)Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses; acquisition transaction and integration-related expenses and payroll withholding taxes related to dividend equivalent payments.


	Thirteen Week Period Ended March 29, 2025
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	232	$	305		$	537
Commercial and non-aerospace aftermarket	343		356			699
Defense	533		341			874
Non-aviation	—		—		40	40
Net sales	1,108		1,002		40	$	2,150
Less:
Other segment expenses (1)	472		473		24
Total segment EBITDA As Defined	636		529		16	1,181
Less: Unallocated corporate EBITDA As Defined						19
Depreciation and amortization expense						89
Interest expense-net						378
Acquisition transaction and integration-related expenses						9
Non-cash stock and deferred compensation expense						48

Other, net						16
Income from continuing operations before income taxes						$	622


	Twenty-Six Week Period Ended March 29, 2025
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	426	$	583		$	1,009
Commercial and non-aerospace aftermarket	681		690			1,371
Defense	1,027		676			1,703
Non-aviation	—		—		73	73
Net sales	2,134		1,949		73	$	4,156
Less:
Other segment expenses (1)	912		904		45
Total segment EBITDA As Defined	1,222		1,045		28	2,295
Less: Unallocated corporate EBITDA As Defined						71
Depreciation and amortization expense						179
Interest expense-net						756
Acquisition transaction and integration-related expenses						22
Non-cash stock and deferred compensation expense						73

Other, net						(47)
Income from continuing operations before income taxes						$	1,241

(1)Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses; acquisition transaction and integration-related expenses and payroll withholding taxes related to dividend equivalent payments.

Schedule of Capital Expenditures and Depreciation and Amortization by Segment

The following table presents capital expenditures and depreciation and amortization by segment (in millions):


	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March 28, 2026		March 29, 2025		March 28, 2026		March 29, 2025
Capital expenditures
Power & Control	$	36	$	29	$	66	$	49
Airframe	35		25		59		46
Non-aviation	—		2		6		3

	$	71	$	56	$	131	$	98

Depreciation and amortization
Power & Control	56		43		109		86
Airframe	47		44		93		90
Non-aviation	2		2		3		3

	$	105	$	89	$	205	$	179

Total Assets by Segment

The following table presents total assets by segment (in millions):


	March 28, 2026		September 30, 2025
Total assets
Power & Control	$	11,171	$	9,859
Airframe	10,434		10,267
Non-aviation	205		202
Corporate (1)	3,632		2,581
	$	25,442	$	22,909

(1)Corporate consists of our corporate offices and does not constitute an operating segment. These amounts are included to reconcile to total consolidated assets.

ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

6 Months Ended

Mar. 28, 2026

Equity [Abstract]

Schedule of Reclassifications out of Accumulated Other Comprehensive Loss


	Unrealized gains (losses) on derivatives (1)		Pension and post-retirement benefit plans adjustment (2)		Foreign currency translation adjustment (3)		Total
Balance at September 30, 2025	$	(4)	$	(2)	$	(4)	$	(10)


Net current-period other comprehensive income (loss) (4)	22		—		(32)		(10)
Balance at March 28, 2026	$	18	$	(2)	$	(36)	$	(20)

Balance at September 30, 2024	$	19	$	1	$	(62)	$	(42)


Net current-period other comprehensive loss (4)	(2)		—		(127)		(129)
Balance at March 29, 2025	$	17	$	1	$	(189)	$	(171)

SEGMENTS - Capital Expenditures and Depreciation and Amortization by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025	Mar. 28, 2026	Mar. 29, 2025
Segment Reporting Information [Line Items]
Capital expenditures	$ 71	$ 56	$ 131	$ 98
Depreciation and amortization expense	105	89	205	179
Power & Control
Segment Reporting Information [Line Items]
Capital expenditures	36	29	66	49
Depreciation and amortization expense	56	43	109	86
Airframe
Segment Reporting Information [Line Items]
Capital expenditures	35	25	59	46
Depreciation and amortization expense	47	44	93	90
Non-aviation
Segment Reporting Information [Line Items]
Capital expenditures	0	2	6	3
Depreciation and amortization expense	$ 2	$ 2	$ 3	$ 3

- Definition

The aggregate expense recognized in the current period that allocates the cost of tangible assets, intangible assets, or depleting assets to periods that benefit from use of the assets.

+ References + Details

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock	Noncontrolling Interests
BALANCE (in shares) at Sep. 30, 2024		61,904,833
Balance at beginning of period at Sep. 30, 2024	$ (6,283)	$ 1	$ 2,819	$ (7,362)	$ (42)	$ (1,706)	$ 7
BALANCE, Treasury Stock (in shares) at Sep. 30, 2024						(5,688,639)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accrued unvested dividend equivalents and other	(8)			(8)
Compensation expense recognized for employee stock options	33		33
Stock-based compensation activity (in shares)		118,080
Stock-based compensation activity	35		35
Stock repurchases under repurchase program (in shares)						(252,800)
Stock repurchases under repurchase program	(316)					$ (316)
NET INCOME ATTRIBUTABLE TO TD GROUP	493			493
Foreign currency translation adjustment, net of tax	(227)				(227)
Unrealized gain (loss) on derivatives, net of tax	22				22
Pension and postretirement benefit plans adjustment, net of tax	0				0
BALANCE (in shares) at Dec. 28, 2024		62,022,913
Balance at end of period at Dec. 28, 2024	(6,251)	$ 1	2,887	(6,877)	(247)	$ (2,022)	7
BALANCE, Treasury Stock (in shares) at Dec. 28, 2024						(5,941,439)
BALANCE (in shares) at Sep. 30, 2024		61,904,833
Balance at beginning of period at Sep. 30, 2024	(6,283)	$ 1	2,819	(7,362)	(42)	$ (1,706)	7
BALANCE, Treasury Stock (in shares) at Sep. 30, 2024						(5,688,639)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
NET INCOME ATTRIBUTABLE TO TD GROUP	972
BALANCE (in shares) at Mar. 29, 2025		62,207,948
Balance at end of period at Mar. 29, 2025	(5,664)	$ 1	2,981	(6,407)	(171)	$ (2,075)	7
BALANCE, Treasury Stock (in shares) at Mar. 29, 2025						(5,984,108)
BALANCE (in shares) at Dec. 28, 2024		62,022,913
Balance at beginning of period at Dec. 28, 2024	(6,251)	$ 1	2,887	(6,877)	(247)	$ (2,022)	7
BALANCE, Treasury Stock (in shares) at Dec. 28, 2024						(5,941,439)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Accrued unvested dividend equivalents and other	(9)			(9)
Compensation expense recognized for employee stock options	39		39
Stock-based compensation activity (in shares)		185,035
Stock-based compensation activity	55		55
Stock repurchases under repurchase program (in shares)						(42,669)
Stock repurchases under repurchase program	(53)					$ (53)
NET INCOME ATTRIBUTABLE TO TD GROUP	479			479
Foreign currency translation adjustment, net of tax	100				100
Unrealized gain (loss) on derivatives, net of tax	(24)				(24)
Pension and postretirement benefit plans adjustment, net of tax	0				0
BALANCE (in shares) at Mar. 29, 2025		62,207,948
Balance at end of period at Mar. 29, 2025	$ (5,664)	$ 1	2,981	(6,407)	(171)	$ (2,075)	7
BALANCE, Treasury Stock (in shares) at Mar. 29, 2025						(5,984,108)
BALANCE (in shares) at Sep. 30, 2025	62,465,317	62,465,317
Balance at beginning of period at Sep. 30, 2025	$ (9,679)	$ 1	3,135	(10,606)	(10)	$ (2,206)	7
BALANCE, Treasury Stock (in shares) at Sep. 30, 2025	(6,089,675)					6,089,675
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Changes in noncontrolling interest of consolidated subsidiaries, net	$ 0						0
Accrued unvested dividend equivalents and other	(7)			(7)
Compensation expense recognized for employee stock options	24		24
Stock-based compensation activity (in shares)		107,798
Stock-based compensation activity	28		28
Stock repurchases under repurchase program (in shares)						(85,212)
Stock repurchases under repurchase program	(106)					$ (106)
NET INCOME ATTRIBUTABLE TO TD GROUP	445			445
Foreign currency translation adjustment, net of tax	26				26
Unrealized gain (loss) on derivatives, net of tax	6				6
Pension and postretirement benefit plans adjustment, net of tax	0				0
BALANCE (in shares) at Dec. 27, 2025		62,573,115
Balance at end of period at Dec. 27, 2025	$ (9,263)	$ 1	3,187	(10,168)	22	$ (2,312)	7
BALANCE, Treasury Stock (in shares) at Dec. 27, 2025						6,174,887
BALANCE (in shares) at Sep. 30, 2025	62,465,317	62,465,317
Balance at beginning of period at Sep. 30, 2025	$ (9,679)	$ 1	3,135	(10,606)	(10)	$ (2,206)	7
BALANCE, Treasury Stock (in shares) at Sep. 30, 2025	(6,089,675)					6,089,675
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock repurchases under repurchase program (in shares)	(687,282)
NET INCOME ATTRIBUTABLE TO TD GROUP	$ 980
BALANCE (in shares) at Mar. 28, 2026	62,749,795	62,749,795
Balance at end of period at Mar. 28, 2026	$ (9,394)	$ 1	3,296	(9,639)	(20)	$ (3,040)	8
BALANCE, Treasury Stock (in shares) at Mar. 28, 2026	(6,776,957)					6,776,957
BALANCE (in shares) at Dec. 27, 2025		62,573,115
Balance at beginning of period at Dec. 27, 2025	$ (9,263)	$ 1	3,187	(10,168)	22	$ (2,312)	7
BALANCE, Treasury Stock (in shares) at Dec. 27, 2025						6,174,887
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Changes in noncontrolling interest of consolidated subsidiaries, net	1						1
Accrued unvested dividend equivalents and other	(6)			(6)
Compensation expense recognized for employee stock options	43		43
Stock-based compensation activity (in shares)		176,680
Stock-based compensation activity	$ 66		66
Stock repurchases under repurchase program (in shares)	(602,070)					(602,070)
Stock repurchases under repurchase program	$ (728)					$ (728)
NET INCOME ATTRIBUTABLE TO TD GROUP	535			535
Foreign currency translation adjustment, net of tax	(58)				(58)
Unrealized gain (loss) on derivatives, net of tax	16				16
Pension and postretirement benefit plans adjustment, net of tax	$ 0				0
BALANCE (in shares) at Mar. 28, 2026	62,749,795	62,749,795
Balance at end of period at Mar. 28, 2026	$ (9,394)	$ 1	$ 3,296	$ (9,639)	$ (20)	$ (3,040)	$ 8
BALANCE, Treasury Stock (in shares) at Mar. 28, 2026	(6,776,957)					6,776,957

GOODWILL AND INTANGIBLE ASSETS - Summary of Changes in Carrying Value of Goodwill (by Segment) (Details) $ in Millions	6 Months Ended
	Mar. 28, 2026 USD ($)
Goodwill [Roll Forward]
Balance at September 30, 2025	$ 10,612
Goodwill acquired during the period	425
Purchase price allocation adjustments	21
Currency translation adjustments and other	(20)
Balance at March 28, 2026	11,038
Power & Control
Goodwill [Roll Forward]
Balance at September 30, 2025	5,273
Goodwill acquired during the period	365
Purchase price allocation adjustments	21
Currency translation adjustments and other	(15)
Balance at March 28, 2026	5,644
Airframe
Goodwill [Roll Forward]
Balance at September 30, 2025	5,260
Goodwill acquired during the period	60
Purchase price allocation adjustments	0
Currency translation adjustments and other	(5)
Balance at March 28, 2026	5,315
Non-aviation
Goodwill [Roll Forward]
Balance at September 30, 2025	79
Goodwill acquired during the period	0
Purchase price allocation adjustments	0
Currency translation adjustments and other	0
Balance at March 28, 2026	$ 79

- Definition

+ References

+ Details

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 28, 2026	Sep. 30, 2025
CURRENT ASSETS:
Cash and cash equivalents	$ 3,884	$ 2,808
Trade accounts receivable—Net	1,720	1,617
Inventories—Net	2,400	2,095
Prepaid expenses and other	575	492
Total current assets	8,579	7,012
PROPERTY, PLANT AND EQUIPMENT—NET	1,678	1,579
GOODWILL	11,038	10,612
OTHER INTANGIBLE ASSETS—NET	3,844	3,454
OTHER NON-CURRENT ASSETS	303	252
TOTAL ASSETS	25,442	22,909
CURRENT LIABILITIES:
Current portion of long-term debt	129	124
Short-term borrowings—trade receivable securitization facility	724	724
Accounts payable	425	368
Accrued and other current liabilities	1,162	966
Total current liabilities	2,440	2,182
LONG-TERM DEBT	31,150	29,167
DEFERRED INCOME TAXES	715	759
OTHER NON-CURRENT LIABILITIES	531	480
Total liabilities	34,836	32,588
TD GROUP STOCKHOLDERS’ DEFICIT:
Common stock - $.01 par value; authorized 224,400,000 shares; issued 62,749,795 and 62,465,317 at March 28, 2026 and September 30, 2025, respectively	1	1
Additional paid-in capital	3,296	3,135
Accumulated deficit	(9,639)	(10,606)
Accumulated other comprehensive loss	(20)	(10)
Treasury stock, at cost; 6,776,957 and 6,089,675 shares at March 28, 2026 and September 30, 2025, respectively	3,040	2,206
Total TD Group stockholders’ deficit	(9,402)	(9,686)
NONCONTROLLING INTERESTS	8	7
Total stockholders’ deficit	(9,394)	(9,679)
TOTAL LIABILITIES AND STOCKHOLDERS’ DEFICIT	$ 25,442	$ 22,909

DERIVATIVES AND HEDGING ACTIVITIES - Summary of Balance Sheet Presentation of Derivative Assets and Liabilities (Details) - USD ($)
$ in Millions

Mar. 28, 2026

Sep. 30, 2025

Derivative [Line Items]

Derivative Asset, Fair Value, Gross Asset

^[1]

$ 36

$ 15

Derivative Liability, Fair Value, Gross Liability

^[1]

Interest Rate Collar

Derivative [Line Items]

Derivative Asset, Fair Value, Gross Asset

Derivative Liability, Fair Value, Gross Liability

Interest Rate Swap

Derivative [Line Items]

Derivative Asset, Fair Value, Gross Asset

Derivative Liability, Fair Value, Gross Liability

$ 0

[1]	Refer to Note 10, “Fair Value Measurements,” for the condensed consolidated balance sheets classification of the Company's interest rate swap and collar agreements.

- Definition

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

+ References + Details

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References + Details

CONDENSED CONSOLIDATED BALANCE SHEETS PARENTHETICAL - $ / shares	Mar. 28, 2026	Sep. 30, 2025
Statement of Financial Position [Abstract]
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	224,400,000	224,400,000
Common stock, shares issued (in shares)	62,749,795	62,465,317
Treasury stock, shares outstanding (in shares)	6,776,957	6,089,675

ACQUISITIONS	6 Months Ended
ACQUISITIONS	Mar. 28, 2026
Business Combination [Abstract]
ACQUISITIONS	ACQUISITIONS Jet Parts Engineering and Victor Sierra Aviation Holdings – On April 7, 2026, the Company completed the acquisition of Jet Parts Engineering (“JPE”) and Victor Sierra Aviation Holdings (“VSA”) for approximately $2.2 billion in cash. The definitive agreement to acquire JPE and VSA from Vance Street Capital was entered into on January 13, 2026. The acquisition was financed using cash on hand and the net proceeds from the debt offerings completed in February 2026 (refer to Note 8, “Debt,” for further information on these debt offerings). JPE, headquartered in Seattle, Washington, is a leading independent designer and manufacturer of aerospace aftermarket solutions, primarily proprietary original equipment manufacturer (“OEM”) alternative parts and repairs. JPE serves commercial, regional and cargo airline customers, as well as maintenance, repair and overhaul providers. JPE’s products are highly engineered, proprietary parts manufacturer approval (“PMA”) components with a strong presence across major commercial aerospace platforms. Nearly all of JPE’s revenue is derived from the commercial aftermarket. In addition to its engineering headquarters in Seattle, Washington, JPE has engineering and component repair locations in Texas, New York, Florida, Alabama and the United Kingdom. VSA is a leading designer, manufacturer, and distributor of proprietary PMA and other aftermarket parts serving the commercial aerospace end market – primarily the general aviation and business aviation sectors. VSA is a leading collection of brands including McFarlane Aviation, Tempest Aero Group, and Aviation Products Systems. VSA offers a complete line of highly engineered PMA, custom design and OEM products, as well as service and repair stations. Nearly all of VSA’s revenue is derived from the commercial aftermarket. VSA primarily operates out of three facilities: Baldwin City, Kansas; Burlington, North Carolina; and Granite City, Illinois. Additional satellite facilities are in Illinois, Texas, Kentucky and Washington to provide support and strategic proximity to customers. The acquisition of JPE and VSA will be accounted for using the acquisition method of accounting. Due to the timing of the closing date, the Company is unable to provide the preliminary estimated fair values of the assets acquired and liabilities assumed as of the acquisition date. Stellant Systems, Inc. – On December 30, 2025, the Company entered into a definitive agreement to acquire all the outstanding stock of Stellant Systems, Inc. (“Stellant”), a portfolio company of Arlington Capital Partners, for approximately $960 million in cash. The acquisition is expected to be financed using cash on hand and the net proceeds from the debt offerings completed in April 2026 (refer to Note 8, “Debt,” for further information on these debt offerings). Stellant, headquartered in Torrance, California, is a leading global designer and manufacturer of high-power electronic components and subsystems serving the aerospace and defense end market. Stellant’s products are highly engineered, proprietary components with substantial aftermarket content and a strong presence across major aerospace and defense platforms, adding new products and services to TransDigm's portfolio. The acquisition of Stellant is subject to regulatory approvals in the United States and customary closing conditions. Simmonds Precision Products, Inc. – On October 6, 2025, the Company completed the acquisition of all the outstanding stock of the Simmonds Precision Products, Inc. Business (“Simmonds”) of Goodrich Corporation from RTX Corporation for approximately $757 million in cash. The acquisition was financed using cash on hand. Simmonds, headquartered in Vergennes, Vermont, is a leading global designer and manufacturer of fuel & proximity sensing and structural health monitoring solutions for the aerospace and defense end markets. Simmonds' products are highly engineered, proprietary components with significant aftermarket content and a strong presence across major aerospace and defense platforms. The operating results of Simmonds are included within TransDigm's Power & Control segment. Based on the fair value of the assets acquired and liabilities assumed, all of the $312 million of goodwill and $425 million of other intangible assets recognized for the acquisition as of March 28, 2026 is expected to be deductible for tax purposes over 15 years. As of March 28, 2026, the measurement period (not to exceed one year) is open; therefore, the assets acquired and liabilities assumed are subject to adjustment until the end of the measurement period. Servotronics, Inc. – On June 2, 2025, the Company launched a tender offer to acquire all the issued and outstanding stock of Servotronics, Inc. (“Servotronics”), at a price of $47.00 per share in cash. On July 1, 2025, the tender offer expired, resulting in all issued and outstanding stock of Servotronics being canceled and Servotronics becoming a wholly owned subsidiary of the Company. The total purchase price was approximately $133 million in cash, which was financed through cash on hand. Servotronics, headquartered in Elma, New York, is a leading global designer and manufacturer of servo controls and other advanced technology components for aerospace and defense applications. Its products are highly engineered, proprietary components with significant aftermarket content and a strong presence across major aerospace and defense platforms. The operating results of Servotronics are included within TransDigm's Power & Control segment. Based on the fair value of the assets acquired and liabilities assumed, $76 million of goodwill and $46 million of other intangible assets was recognized for the acquisition as of March 28, 2026, none of which is expected to be deductible for tax purposes. As of March 28, 2026, the measurement period (not to exceed one year) is open; therefore, the assets acquired and liabilities assumed are subject to adjustment until the end of the measurement period. Other Acquisitions – For the twenty-six week period ended March 28, 2026, the Company completed several acquisitions consisting of substantially all of the assets and technical data rights of certain product lines or all the outstanding stock of certain businesses (collectively, referred to herein as the “Other Acquisitions”), each meeting the definition of a business, for a total aggregate purchase price of $243 million in cash. Each of the acquisitions was financed using cash on hand. These acquisitions represent bolt-ons to existing TransDigm operating units. Of the $113 million of goodwill recognized as of March 28, 2026 for the acquisitions, $75 million is expected to be deductible for tax purposes over 15 years. Of the $88 million of other intangible assets recognized for the acquisitions as of March 28, 2026, $65 million is expected to be deductible for tax purposes over 15 years. As of March 28, 2026, the measurement period (not to exceed one year) is open for the fiscal 2026 Other Acquisitions; therefore, the assets acquired and liabilities assumed are subject to adjustment until the end of the respective measurement period. For the fiscal year ended September 30, 2025, the Company completed a number of Other Acquisitions, each meeting the definition of a business, for a total aggregate purchase price of $284 million in cash. Each of the acquisitions was financed using cash on hand. These acquisitions represent bolt-ons to existing TransDigm operating units. The Company expects that all of the approximately $147 million of goodwill and $90 million of other intangible assets recognized for the acquisitions will be deductible for tax purposes over 15 years. As of March 28, 2026, the measurement period (not to exceed one year) is open for certain fiscal 2025 Other Acquisitions; therefore, the assets acquired and liabilities assumed are subject to adjustment until the end of the respective measurement period. * * * * * Pro forma net sales and results of operations for the acquisitions, had they occurred at the beginning of the twenty-six week periods ended March 28, 2026 or March 29, 2025 are not material. The acquisitions completed by the Company strengthen and expand the Company’s position to design, produce and supply highly engineered proprietary aerospace components in niche markets with significant aftermarket content and provide opportunities to create value through the application of our three core value-driven operating strategy (obtaining profitable new business, continually improving our cost structure, and providing highly engineered value-added products to customers). The purchase prices paid reflect the current EBITDA As Defined and cash flows, as well as the future EBITDA As Defined and cash flows expected to be generated by the businesses, which are driven in most cases by the recurring aftermarket consumption over the life of a particular aircraft, estimated to be approximately 25 to 30 years.

- Definition

The entire disclosure for business combination.

+ References

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+ Details

INCOME TAXES	6 Months Ended
INCOME TAXES	Mar. 28, 2026
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES At the end of each reporting period, TD Group makes an estimate of its annual effective income tax rate. The estimate used in the year-to-date period may change in subsequent periods. During the thirteen week periods ended March 28, 2026 and March 29, 2025, the effective income tax rate was 23.4% and 23.0%, respectively. During the twenty-six week periods ended March 28, 2026 and March 29, 2025, the effective income tax rate was 22.9% and 21.7%, respectively. The Company’s higher effective income tax rate for the thirteen and twenty-six week periods ended March 28, 2026, was primarily due to a less significant benefit associated with share-based payments when compared to the same period in fiscal 2025. The Company's effective income tax rate for the thirteen and twenty-six week periods ended March 28, 2026 was higher than the federal statutory rate of 21% primarily due to an increase in the valuation allowance applicable to the Company’s net interest deduction limitation, a higher effective tax rate on non-U.S. earnings, partially offset by the discrete impact of excess tax benefits associated with share-based payments. The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various state, local and foreign jurisdictions. The Company is no longer subject to U.S. federal examinations for years before fiscal 2022. The Company is currently under examination for its federal income taxes in Canada for fiscal years 2013 through 2019, in France for fiscal years 2020 through 2022, and in Germany for fiscal years 2017 through 2019. In addition, the Company is subject to state income tax examinations for fiscal years 2015 and later. Unrecognized tax benefits at March 28, 2026 and September 30, 2025 were not material. On July 4, 2025, H.R. 1, commonly referred to as the One Big Beautiful Bill Act (the “Act”) was signed into law. It contains a broad range of tax reform provisions affecting businesses. The majority of these provisions will impact us starting in fiscal year 2027. We continue to evaluate the future effects of the Act on our effective tax rate and cash tax position. The impact of the legislation on our operating results for the thirteen and twenty-six week periods ended March 28, 2026 was not material.

- Definition

The entire disclosure for income tax.

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+ Details

FAIR VALUE MEASUREMENTS

6 Months Ended

Mar. 28, 2026

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

The following table presents our assets and liabilities that are measured at fair value on a recurring basis and are categorized using the fair value hierarchy. The fair value hierarchy has three levels based on the reliability of the inputs used to determine fair value. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs are quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. A financial asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement.

The following summarizes the carrying amounts and fair values of financial instruments (in millions):


		March 28, 2026				September 30, 2025
	Level	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	3,884	$	3,884	$	2,808	$	2,808
Interest rate swap agreements (1)	2	4		4		3		3

Interest rate collar agreements (1)	2	3		3		4		4

Interest rate swap agreements (2)	2	19		19		5		5

Interest rate collar agreements (2)	2	10		10		3		3
Liabilities:


Foreign currency forward exchange contracts (3)	2	2		2		2		2


Interest rate collar agreements (4)	2	—		—		3		3
Short-term borrowings - trade receivable securitization facility (5)	2	724		724		724		724
Long-term debt, including current portion:
Term loans (5)	2	11,816		11,909		11,048		11,120
2028 Secured Notes (5)	1	2,086		2,126		2,083		2,139
4.625% 2029 Notes (5)	1	1,196		1,176		1,195		1,175
2029 Secured Notes (5)	1	2,734		2,784		2,732		2,812
4.875% 2029 Notes (5)	1	747		735		747		739
2030 Secured Notes (5)	1	1,441		1,484		1,440		1,501
2031 Secured Notes (5)	1	988		1,030		986		1,041
2032 Secured Notes (5)	1	2,184		2,244		2,183		2,263
2033 Secured Notes (5)	1	1,489		1,496		1,488		1,517
6.375% 2033 Notes (5)	1	2,619		2,640		2,616		2,686
2034 Secured Notes (5)	1	496		504		495		514
6.750% 2034 Notes (5)	1	1,983		2,028		1,982		2,068
Initial 6.125% 2034 Notes (5)	1	1,189		1,158		—		—
Government refundable advances	2	8		8		12		12
Finance lease obligations	2	303		303		284		284

(1)Included in prepaid expenses and other on the condensed consolidated balance sheets.

(2)Included in other non-current assets on the condensed consolidated balance sheets.

(3)Included in accrued and other current liabilities on the condensed consolidated balance sheets.

(4)Included in other non-current liabilities on the condensed consolidated balance sheets.

(5)The carrying amount of the debt instrument is presented net of debt issuance costs and original issue discount.

The Company values its financial instruments using an industry standard market approach, in which prices and other relevant information are generated by market transactions involving identical or comparable assets or liabilities. No financial instruments were recognized or disclosed using unobservable inputs (i.e., Level 3).

The Company’s derivatives consist of interest rate swap and collar agreements and foreign currency exchange contracts. The fair values of the interest rate swap and collar agreements were derived by taking the net present value of the expected cash flows using observable market inputs (Level 2) such as SOFR rate curves, futures, volatilities and basis spreads (when applicable). The fair values of the foreign currency exchange contracts were derived by using Level 2 inputs based on observable spot and forward exchange rates in active markets. There has not been any impact to the fair value of derivative liabilities due to the Company's own credit risk. Similarly, there has not been any material impact to the fair value of derivative assets based on the Company's evaluation of counterparties' credit risks.

The estimated fair value of the Company’s term loans was based on information provided by the agent under the Company’s Credit Agreement. The estimated fair values of the Company’s notes were based upon quoted market prices.

The fair value of cash and cash equivalents, trade accounts receivable-net and accounts payable approximated carrying value due to the short-term nature of these instruments at March 28, 2026 and September 30, 2025.

ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Accumulated Other Comprehensive Income (Loss), Net of Taxes (Details) - USD ($)
$ in Millions

3 Months Ended

6 Months Ended

Mar. 28, 2026

Dec. 27, 2025

Mar. 29, 2025

Dec. 28, 2024

Mar. 28, 2026

Mar. 29, 2025

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Balance at beginning of period

$ (9,263)

$ (9,679)

$ (6,251)

$ (6,283)

$ (9,679)

$ (6,283)

Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax

(24)

Pension and postretirement benefit plans adjustment, net of tax

Foreign currency translation adjustment

(58)

100

(227)

Other Comprehensive Income (Loss), Net of Tax

(42)

(10)

(129)

Balance at end of period

(9,394)

(9,263)

(5,664)

(6,251)

(9,394)

(5,664)

Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax

Cash Flow Hedging | Designated as Hedging Instrument | Net Sales

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Derivative, Gain (Loss) on Derivative, Net

(1)

Derivative, Gain (Loss) on Derivative, Tax Expense (Benefit)

(1)

Cash Flow Hedging | Designated as Hedging Instrument | Interest Expense, Net

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Derivative, Gain (Loss) on Derivative, Net

(1)

Derivative, Gain (Loss) on Derivative, Tax Expense (Benefit)

(1)

Accumulated Other Comprehensive Loss

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Balance at beginning of period

(10)

(247)

(42)

(10)

(42)

Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax

(24)

Pension and postretirement benefit plans adjustment, net of tax

Foreign currency translation adjustment

(58)

100

(227)

Other Comprehensive Income (Loss), Net of Tax

^[1]

(10)

(129)

Balance at end of period

(20)

(171)

(247)

(20)

(171)

Unrealized gains (losses) on derivatives (1)

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Balance at beginning of period

^[2]

(4)

Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax

^[1],[2]

(2)

Balance at end of period

^[2]

Pension and post-retirement benefit plans adjustment (2)

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Balance at beginning of period

^[3]

(2)

Pension and postretirement benefit plans adjustment, net of tax

^[1],[3]

Balance at end of period

^[3]

(2)

Foreign currency translation adjustment (3)

AOCI Attributable to Parent, Net of Tax [Roll Forward]

Balance at beginning of period

^[4]

$ (4)

$ (62)

(4)

(62)

Foreign currency translation adjustment

^[1],[4]

(32)

(127)

Balance at end of period

^[4]

$ (36)

$ (189)

$ (36)

$ (189)

[1]	Presented net of reclassifications out of AOCL into earnings, specifically net sales and interest expense-net, for realized (losses) gains on derivatives designated and qualifying as cash flow hedges of $7 million (net of taxes of $2 million) and $(1) million (net of taxes of less than $(1) million), respectively, for the twenty-six week period ended March 28, 2026 and $(1) million (net of taxes of less than $(1) million) and $18 million (net of taxes of $6 million), respectively, for the twenty-six week period ended March 29, 2025
[2]	Represents unrealized gains (losses) on derivatives designated and qualifying as cash flow hedges, net of tax (expense) benefit, of $5 million and $8 million for the thirteen week periods ended March 28, 2026 and March 29, 2025, respectively, and $7 million and $1 million for the twenty-six week periods ended March 28, 2026 and March 29, 2025, respectively
[3]	There were no material pension liability adjustments, net of taxes, related to activity for the defined pension plans and postretirement benefit plans for the thirteen and twenty-six week periods ended March 28, 2026 and March 29, 2025.
[4]	Represents gains (losses) resulting from foreign currency translation of financial statements, including gains (losses) from certain intercompany transactions, into U.S. dollars at the rates of exchange in effect at the balance sheet dates.

DEBT

6 Months Ended

Mar. 28, 2026

Debt Disclosure [Abstract]

DEBT

The Company’s debt consists of the following (in millions):


	March 28, 2026
	Gross Amount		Debt Issuance Costs		Original Issue Discount		Net Amount
Short-term borrowings—trade receivable securitization facility	$	725	$	(1)	$	—	$	724
Term loans	$	11,896	$	(48)	$	(32)	$	11,816

6.750% secured notes due 2028 (“2028 Secured Notes”)	2,100		(9)		(5)		2,086
4.625% senior subordinated notes due 2029 (“4.625% 2029 Notes”)	1,200		(4)		—		1,196
6.375% secured notes due 2029 (“2029 Secured Notes”)	2,750		(15)		(1)		2,734
4.875% senior subordinated notes due 2029 (“4.875% 2029 Notes”)	750		(3)		—		747
6.875% secured notes due 2030 (“2030 Secured Notes”)	1,450		(9)		—		1,441
7.125% secured notes due 2031 (“2031 Secured Notes”)	1,000		(7)		(5)		988
6.625% secured notes due 2032 (“2032 Secured Notes”)	2,200		(16)		—		2,184
6.000% secured notes due 2033 (“2033 Secured Notes”)	1,500		(11)		—		1,489
6.375% senior subordinated notes due 2033 (“6.375% 2033 Notes”)	2,650		(13)		(18)		2,619
6.250% secured notes due 2034 (“2034 Secured Notes”)	500		(4)		—		496
6.750% senior subordinated notes due 2034 (“6.750% 2034 Notes”)	2,000		(17)		—		1,983
6.125% senior subordinated notes due 2034 (“Initial 6.125% 2034 Notes”)	1,200		(11)		—		1,189
Government refundable advances	8		—		—		8
Finance lease obligations	303		—		—		303
	31,507		(167)		(61)		31,279
Less: current portion	130		(1)		—		129
Long-term debt	$	31,377	$	(166)	$	(61)	$	31,150

Accrued interest, which is classified as a component of accrued and other current liabilities on the condensed consolidated balance sheets, was $284 million and $208 million as of March 28, 2026 and September 30, 2025, respectively.

Issuance of Initial 6.125% 2034 Notes – On February 13, 2026, the Company entered into a purchase agreement in connection with a private offering of $1,200 million in aggregate principal amount consisting of the Initial 6.125% 2034 Notes at an issue price of 100% of the principal amount. The Initial 6.125% 2034 Notes were issued pursuant to an indenture, dated as of February 13, 2026, amongst TransDigm Inc., as issuer, TransDigm Group and the other subsidiaries of TransDigm Inc. named therein, as guarantors. The Initial 6.125% 2034 Notes bear interest at the rate of 6.125% per annum, which accrues from February 13, 2026 and is payable in arrears on January 31 and July 31 of each year, commencing on July 31, 2026. The Initial 6.125% 2034 Notes mature on July 31, 2034, unless earlier redeemed or repurchased, and are subject to the terms and conditions set forth in the related indenture.

The Company capitalized approximately $11 million in debt issuance costs associated with the Initial 6.125% 2034 Notes during the twenty-six week period ended March 28, 2026.

Subsequent Event – Issuance of $500 Million of Senior Subordinated Notes due 2034 – On April 17, 2026, the Company entered into a purchase agreement in connection with a private offering of $500 million in aggregate principal amount consisting of the 6.125% 2034 Notes (the “New 6.125% 2034 Notes”) at an issue price of 100.375%, or a premium of approximately $2 million, of the principal amount. The New 6.125% 2034 Notes were issued pursuant to a supplemental indenture, dated as of April 17, 2026, which is substantially the same as the terms and conditions that apply to the Initial 6.125% 2034 Notes indenture dated as of February 13, 2026.

Amendment No. 20 and Incremental Term Loan Assumption Agreement – On February 13, 2026, the Company entered into Amendment No. 20 and Incremental Term Loan Assumption Agreement (herein, “Amendment No. 20”), pursuant to which the Company, among other things, incurred $800 million in Tranche N term loans (the “Initial Tranche N term loans”). Original issue discount of 0.125%, or $1 million, was paid to the lenders of the Initial Tranche N term loans. The other terms and conditions that apply to the Initial Tranche N term loans are substantially the same as the terms and conditions that apply to the other term loans existing under the Term Loans Facility. The Initial Tranche N term loans were fully drawn on February 13, 2026.

The Company capitalized approximately $8 million in debt issuance costs associated with Amendment No. 20 during the twenty-six week period ended March 28, 2026.

Subsequent Event – Amendment No. 21 and Incremental Term Loan Assumption Agreement – On April 17, 2026, the Company entered into Amendment No. 21 and Incremental Term Loan Assumption Agreement (herein, “Amendment No. 21”), pursuant to which the Company, among other things, incurred $1,000 million in new Tranche N term loans (the “New Tranche N term loans”). Original issue discount of 0.125%, or approximately $1 million, was paid to the lenders of the New Tranche N term loans. The other terms and conditions that apply to the New Tranche N term loans are substantially the same as the terms and conditions that apply to the other term loans existing under the Term Loans Facility.

Principal payments for the Initial and New Tranche N term loans commence on June 30, 2026, in which approximately $4.5 million is to be paid on a quarterly basis up to the February 13, 2033 maturity date. The Initial and New Tranche N term loans bear interest at the rate of Term SOFR plus 2.50% per annum, which accrued from February 13, 2026, and is payable in arrears on March 31, June 30, September 30, and December 31 of each year, commencing on June 30, 2026.

Use of Proceeds

The Company used the net proceeds from the February 13, 2026 issuances of the Initial 6.125% 2034 Notes and the Initial Tranche N terms loans, along with cash on hand, to fund the purchase price of the acquisition of JPE and VSA and for related transaction fees and expenses.

The Company intends to use the net proceeds from the April 17, 2026 issuances of the New 6.125% 2034 Notes and the New Tranche N terms loans, along with cash on hand, to fund the purchase price of the expected acquisition of Stellant and for general corporate purposes, including replenishment on our balance sheet of a portion of the cash used to fund the common stock repurchases (refer to Note 5, “Stock Repurchase Program”) and for related transaction fees and expenses.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 8A
-Publisher FASB
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147481139/470-20-50-1I

+ Details

STOCK REPURCHASE PROGRAM (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended	3 Months Ended				6 Months Ended
	Apr. 30, 2026	Mar. 28, 2026	Dec. 27, 2025	Mar. 29, 2025	Dec. 28, 2024	Mar. 28, 2026	Nov. 30, 2025	Jan. 27, 2022	Nov. 08, 2017
Share Repurchase Program [Line Items]
Stock repurchase program, authorized amount								$ 2,200	$ 650
Share repurchase program, additional authorized amount							$ 5,000
Stock repurchase, amount accrued in accrued and other current liabilities		$ 108				$ 108
Stock repurchases under repurchase program, including unpaid amount		$ 723				$ 829
Stock repurchases under repurchase program (in shares)		602,070				687,282
Stock repurchase program, average price (in dollars per share)		$ 1,200.58				$ 1,206.68
Stock repurchase program, remaining authorized repurchase amount		$ 4,958				$ 4,958
Stock repurchases under repurchase program		$ 728	$ 106	$ 53	$ 316
Subsequent Event
Share Repurchase Program [Line Items]
Stock repurchases under repurchase program (in shares)	66,537
Stock repurchase program, average price (in dollars per share)	$ 1,138.88
Stock repurchases under repurchase program	$ 76

INVENTORIES - Schedule of Inventories (Details) - USD ($) $ in Millions	Mar. 28, 2026	Sep. 30, 2025
Inventory Disclosure [Abstract]
Raw materials and purchased component parts	$ 1,466	$ 1,295
Work-in-progress	681	543
Finished goods	253	257
Inventories—Net	$ 2,400	$ 2,095

SEGMENTS

6 Months Ended

Mar. 28, 2026

Segment Reporting [Abstract]

SEGMENTS

The Company’s businesses are organized and managed in three reporting segments: Power & Control, Airframe and Non-aviation. Refer to Note 15, “Segments,” in Part IV, Item 15. Exhibits and Financial Statement Schedules, of our Annual Report on Form 10-K for the fiscal year ended September 30, 2025, filed on November 12, 2025, for further information on the composition of the Company's segments.

The Company’s segments are reported on the same basis used internally by our Chief Operating Decision Maker (“CODM”) for evaluating performance and for allocating resources. The Company’s CODM is collectively the President and Chief Executive Officer and Co-Chief Operating Officers. The primary measurement used internally by our CODM and management to review and assess the operating performance of each segment is EBITDA As Defined. Actual results are compared to plan, forecast and prior year on a monthly basis. The Company defines EBITDA As Defined as earnings before interest, taxes, depreciation and amortization plus certain non-operating items recorded as corporate expenses including non-cash compensation charges incurred in connection with the Company’s stock incentive or deferred compensation plans, foreign currency gains and losses, acquisition-integration costs, acquisition transaction-related expenses, and refinancing costs. Acquisition transaction and integration-related expenses represent costs incurred to integrate acquired businesses into TD Group’s operations; facility relocation costs and other acquisition-related costs; transaction and valuation-related costs for acquisitions comprising deal fees, legal, financial and tax due diligence expenses; amortization expense of inventory step-up recorded in connection with the purchase accounting of acquired businesses.

EBITDA As Defined is not a measurement of financial performance under U.S. GAAP. Although the Company uses EBITDA As Defined to assess the performance of its business and for various other purposes, the use of this non-GAAP financial measure as an analytical tool has limitations, and it should not be considered in isolation or as a substitute for analysis of the Company’s results of operations as reported in accordance with U.S. GAAP.

The accounting policies for each segment are the same as those described in Note 1, “Summary of Significant Accounting Policies,” in Part IV, Item 15. Exhibits and Financial Statement Schedules, of our Annual Report on Form 10-K for the fiscal year ended September 30, 2025, filed on November 12, 2025. Intersegment sales and transfers are recorded at values based on market prices, which creates intercompany profit on intersegment sales or transfers that is eliminated in consolidation. Intersegment sales were immaterial for the periods presented below. Corporate consists of our corporate offices. Corporate expenses consist primarily of compensation, benefits, professional services and other administrative costs incurred by the corporate offices. Corporate assets consist primarily of cash and cash equivalents. Corporate expenses and assets reconcile reportable segment data to the consolidated totals. An immaterial amount of corporate expenses is allocated to the operating segments.


	Thirteen Week Period Ended March 28, 2026
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	278	$	325		$	603
Commercial and non-aerospace aftermarket	431		408			839
Defense	657		400			1,057
Non-aviation	—		—		45	45
Net sales	1,366		1,133		45	2,544
Less:
Other segment expenses (1)	632		520		26
Total segment EBITDA As Defined	734		613		19	1,366
Less: Unallocated corporate EBITDA As Defined						29
Depreciation and amortization expense						105
Interest expense-net						484
Acquisition transaction and integration-related expenses						19
Non-cash stock and deferred compensation expense						26

Other, net						3
Income from continuing operations before income taxes						$	700


	Twenty-Six Week Period Ended March 28, 2026
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	524	$	613		$	1,137
Commercial and non-aerospace aftermarket	802		769			1,571
Defense	1,264		771			2,035
Non-aviation	—		—		85	85
Net sales	2,590		2,153		85	4,828
Less:
Other segment expenses (1)	1,201		990		50
Total segment EBITDA As Defined	1,389		1,163		35	2,587
Less: Unallocated corporate EBITDA As Defined						53
Depreciation and amortization expense						205
Interest expense-net						959
Acquisition transaction and integration-related expenses						31
Non-cash stock and deferred compensation expense						53

Other, net						14
Income from continuing operations before income taxes						$	1,272

(1)Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses; acquisition transaction and integration-related expenses and payroll withholding taxes related to dividend equivalent payments.


	Thirteen Week Period Ended March 29, 2025
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	232	$	305		$	537
Commercial and non-aerospace aftermarket	343		356			699
Defense	533		341			874
Non-aviation	—		—		40	40
Net sales	1,108		1,002		40	$	2,150
Less:
Other segment expenses (1)	472		473		24
Total segment EBITDA As Defined	636		529		16	1,181
Less: Unallocated corporate EBITDA As Defined						19
Depreciation and amortization expense						89
Interest expense-net						378
Acquisition transaction and integration-related expenses						9
Non-cash stock and deferred compensation expense						48

Other, net						16
Income from continuing operations before income taxes						$	622


	Twenty-Six Week Period Ended March 29, 2025
	Power & Control		Airframe		Non-aviation	Total
Net sales to external customers
Commercial and non-aerospace OEM	$	426	$	583		$	1,009
Commercial and non-aerospace aftermarket	681		690			1,371
Defense	1,027		676			1,703
Non-aviation	—		—		73	73
Net sales	2,134		1,949		73	$	4,156
Less:
Other segment expenses (1)	912		904		45
Total segment EBITDA As Defined	1,222		1,045		28	2,295
Less: Unallocated corporate EBITDA As Defined						71
Depreciation and amortization expense						179
Interest expense-net						756
Acquisition transaction and integration-related expenses						22
Non-cash stock and deferred compensation expense						73

Other, net						(47)
Income from continuing operations before income taxes						$	1,241

(1)Primarily represents cost of sales, selling expenses, general and administrative expenses, research and development, and miscellaneous income or expense. Excludes depreciation and amortization; non-cash stock and deferred compensation expense; foreign currency transaction gains or losses; acquisition transaction and integration-related expenses and payroll withholding taxes related to dividend equivalent payments.

The following table presents capital expenditures and depreciation and amortization by segment (in millions):


	Thirteen Week Periods Ended				Twenty-Six Week Periods Ended
	March 28, 2026		March 29, 2025		March 28, 2026		March 29, 2025
Capital expenditures
Power & Control	$	36	$	29	$	66	$	49
Airframe	35		25		59		46
Non-aviation	—		2		6		3

	$	71	$	56	$	131	$	98

Depreciation and amortization
Power & Control	56		43		109		86
Airframe	47		44		93		90
Non-aviation	2		2		3		3

	$	105	$	89	$	205	$	179

The following table presents total assets by segment (in millions):


	March 28, 2026		September 30, 2025
Total assets
Power & Control	$	11,171	$	9,859
Airframe	10,434		10,267
Non-aviation	205		202
Corporate (1)	3,632		2,581
	$	25,442	$	22,909

(1)Corporate consists of our corporate offices and does not constitute an operating segment. These amounts are included to reconcile to total consolidated assets.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

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+ Details

FAIR VALUE MEASUREMENTS (Tables)

6 Months Ended

Mar. 28, 2026

Fair Value Disclosures [Abstract]

Carrying Amounts and Fair Values of Financial Instruments


		March 28, 2026				September 30, 2025
	Level	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	3,884	$	3,884	$	2,808	$	2,808
Interest rate swap agreements (1)	2	4		4		3		3

Interest rate collar agreements (1)	2	3		3		4		4

Interest rate swap agreements (2)	2	19		19		5		5

Interest rate collar agreements (2)	2	10		10		3		3
Liabilities:


Foreign currency forward exchange contracts (3)	2	2		2		2		2


Interest rate collar agreements (4)	2	—		—		3		3
Short-term borrowings - trade receivable securitization facility (5)	2	724		724		724		724
Long-term debt, including current portion:
Term loans (5)	2	11,816		11,909		11,048		11,120
2028 Secured Notes (5)	1	2,086		2,126		2,083		2,139
4.625% 2029 Notes (5)	1	1,196		1,176		1,195		1,175
2029 Secured Notes (5)	1	2,734		2,784		2,732		2,812
4.875% 2029 Notes (5)	1	747		735		747		739
2030 Secured Notes (5)	1	1,441		1,484		1,440		1,501
2031 Secured Notes (5)	1	988		1,030		986		1,041
2032 Secured Notes (5)	1	2,184		2,244		2,183		2,263
2033 Secured Notes (5)	1	1,489		1,496		1,488		1,517
6.375% 2033 Notes (5)	1	2,619		2,640		2,616		2,686
2034 Secured Notes (5)	1	496		504		495		514
6.750% 2034 Notes (5)	1	1,983		2,028		1,982		2,068
Initial 6.125% 2034 Notes (5)	1	1,189		1,158		—		—
Government refundable advances	2	8		8		12		12
Finance lease obligations	2	303		303		284		284

(1)Included in prepaid expenses and other on the condensed consolidated balance sheets.

(2)Included in other non-current assets on the condensed consolidated balance sheets.

(3)Included in accrued and other current liabilities on the condensed consolidated balance sheets.

(4)Included in other non-current liabilities on the condensed consolidated balance sheets.

(5)The carrying amount of the debt instrument is presented net of debt issuance costs and original issue discount.

CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Mar. 28, 2026	Mar. 29, 2025
OPERATING ACTIVITIES:
NET INCOME	$ 981	$ 972
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	88	81
Amortization of intangible assets and product certification costs	117	98
Amortization of debt issuance costs and original issue discount	23	19
Gain on sale of businesses, net	0	(19)
Non-cash stock and deferred compensation expense	53	73
Deferred income taxes	(1)	(2)
Changes in assets/liabilities, net of effects from acquisitions and sales of businesses:
Trade accounts receivable	(65)	(66)
Inventories	(145)	(116)
Income taxes receivable	(29)	(107)
Other assets	(53)	12
Accounts payable	15	(2)
Accrued interest	76	127
Accrued and other liabilities	(93)	(170)
Net cash provided by operating activities	967	900
INVESTING ACTIVITIES:
Capital expenditures	(131)	(98)
Acquisition of businesses, net of cash acquired	(1,000)	(140)
Other investing transactions, net	(6)	47
Net cash used in investing activities	(1,137)	(191)
FINANCING ACTIVITIES:
Proceeds from exercise of stock options	83	89
Dividends and dividend equivalent payments	(59)	(4,396)
Repurchases of common stock	(721)	(369)
Proceeds from issuance of senior subordinated notes, net	1,189	0
Proceeds from term loans, net	791	0
Proceeds from trade receivable securitization facility, net	0	163
Repayment on term loans	(28)	(22)
Financing costs and other, net	(6)	(5)
Net cash provided by (used in) financing activities	1,249	(4,540)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	(3)	(4)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	1,076	(3,835)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	2,808	6,261
CASH AND CASH EQUIVALENTS, END OF PERIOD	3,884	2,426
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest, net	843	597
Cash paid during the period for income taxes, net of refunds	$ 317	$ 372

BASIS OF PRESENTATION	6 Months Ended
BASIS OF PRESENTATION	Mar. 28, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION As used in this Quarterly Report on Form 10-Q, unless the context otherwise indicates, the terms “the Company,” “TD Group,” “TransDigm,” “we,” “us,” “our,” and similar references refer to TransDigm Group Incorporated and its subsidiaries. Principles of Consolidation The financial information included herein is unaudited; however, the information reflects all adjustments (consisting of normal recurring adjustments) that are, in the opinion of management, necessary for a fair presentation of the Company’s condensed consolidated financial statements for the interim periods presented. These financial statements and notes should be read in conjunction with the financial statements and related notes for the fiscal year ended September 30, 2025 included in TD Group’s Annual Report on Form 10-K filed on November 12, 2025. As disclosed therein, the Company’s annual consolidated financial statements were prepared in conformity with generally accepted accounting principles in the United States (“U.S. GAAP”). The September 30, 2025 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the twenty-six week period ended March 28, 2026 are not necessarily indicative of the results to be expected for the full year. Reclassifications Certain reclassifications have been made to the prior year amounts to conform to the current year presentation, none of which are material. New Accounting Pronouncements Adopted In November 2023, the FASB issued ASU 2023-07, “Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures.” ASU 2023-07 expands disclosures about a public business entity's reportable segments and provides for more detailed information about a reportable segment's expenses. Additionally, ASU 2023-07 requires all segment profit or loss and assets disclosures to be provided on an annual and interim basis. This standard is effective for annual periods beginning after December 15, 2023 (fiscal 2025) and interim periods within fiscal years beginning one year later (fiscal 2026). The Company adopted this standard in the fourth quarter of fiscal 2025. Refer to Note 12, “Segments,” for further information. Recent Accounting Pronouncements Issued In December 2023, the FASB issued ASU 2023-09, “Income Taxes (Topic 740): Improvements to Income Tax Disclosures,” which requires a public business entity to disclose specific categories in its annual effective tax rate reconciliation and disaggregated information about significant reconciling items by jurisdiction and by nature. The ASU also requires entities to disclose their income tax payments (net of refunds) to international, federal, and state and local jurisdictions. The standard makes several other changes to income tax disclosure requirements. This standard is effective for annual periods beginning after December 15, 2024 (fiscal 2026), and requires prospective application with the option to apply it retrospectively. The Company will adopt this standard in the fourth quarter of fiscal 2026 and expects to apply it prospectively. This standard will expand our annual income tax disclosures, but will not impact our consolidated balance sheets, results of operations or cash flows. In November 2024, the FASB issued ASU 2024-03, “Income Statement - Reporting Comprehensive Income - Expense Disaggregation Disclosures (Subtopic 220-40): Disaggregation of Income Statement Expenses.” Additionally, in January 2025, the FASB issued ASU 2025-01 to clarify the effective date of ASU 2024-03. The standard requires, among other items, additional disaggregated disclosures in the notes to financial statements for certain categories of expenses that are included on the face of the statement of income. The standard is effective for fiscal years beginning after December 15, 2026 (fiscal 2028), and for interim periods within fiscal years beginning after December 15, 2027 (fiscal 2029), on a retrospective or prospective basis, with early adoption permitted. The Company is currently evaluating this standard to determine its impact on our disclosures.

Cover Page - shares	6 Months Ended
Cover Page - shares	Mar. 28, 2026	Apr. 30, 2026
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Mar. 28, 2026
Document Transition Report	false
Entity File Number	001-32833
Entity Registrant Name	TransDigm Group Incorporated
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	41-2101738
Entity Address, Address Line One	1350 Euclid Avenue,
Entity Address, Address Line Two	Suite 1600,
Entity Address, City or Town	Cleveland,
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44115
City Area Code	216
Local Phone Number	706-2960
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	TDG
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		55,933,583
Amendment Flag	false
Document Fiscal Year Focus	2026
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001260221
Current Fiscal Year End Date	--09-30