10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-Q

☒ Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

for the quarterly period ended January 2, 2021

☐ Transition Report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from             to            

Commission File Number 001-32833

TransDigm Group Incorporated

(Exact name of registrant as specified in its charter)

Delaware

(State or other jurisdiction of incorporation or organization)

41-2101738

(I.R.S. Employer Identification No.)

1301 East 9th Street,	Suite 3000,	Cleveland,	Ohio	44114
(Address of principal executive offices)				(Zip Code)

(216) 706-2960

(Registrant’s telephone number, including area code)

(Former name, former address and former fiscal year, if changed since last report.)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No  ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, accelerated filer, non-accelerated filer, smaller reporting company or emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large Accelerated Filer	☒	Accelerated Filer	☐
Non-Accelerated Filer	☐	Smaller Reporting Company	☐
Emerging Growth Company	☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.			☐

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ☐    No  ☒

Securities registered pursuant to Section 12(b) of the Act:
Title of each class:	Trading Symbol:	Name of each exchange on which registered:
Common Stock, $0.01 par value	TDG	New York Stock Exchange

The number of shares outstanding of TransDigm Group Incorporated’s common stock, par value $.01 per share, was 54,688,918 as of January 25, 2021.

INDEX

			Page
Part I		FINANCIAL INFORMATION
	Item 1	Financial Statements
		Condensed Consolidated Balance Sheets – January 2, 2021 and September 30, 2020	1
		Condensed Consolidated Statements of Income – Thirteen Week Periods Ended January 2, 2021 and December 28, 2019	2
		Condensed Consolidated Statements of Comprehensive Income – Thirteen Week Periods Ended January 2, 2021 and December 28, 2019	3
		Condensed Consolidated Statements of Changes in Stockholders’ Deficit – Thirteen Week Periods Ended January 2, 2021 and December 28, 2019	4
		Condensed Consolidated Statements of Cash Flows – Thirteen Week Periods Ended January 2, 2021 and December 28, 2019	5
		Notes to Condensed Consolidated Financial Statements	6
	Item 2	Management’s Discussion and Analysis of Financial Condition and Results of Operations	22
	Item 3	Quantitative and Qualitative Disclosure About Market Risk	38
	Item 4	Controls and Procedures	38
Part II		OTHER INFORMATION	39
	Item 1	Legal Proceedings	39
	Item 1A	Risk Factors	39
	Item 2	Unregistered Sales of Equity Securities and Use of Proceeds	39
	Item 6	Exhibits	40
SIGNATURES			41

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED BALANCE SHEETS

(Amounts in millions, except share amounts)

(Unaudited)

	January 2, 2021		September 30, 2020
ASSETS
CURRENT ASSETS:
Cash and cash equivalents	$	4,907	$	4,717
Trade accounts receivable—Net	627		720
Inventories—Net	1,284		1,283
Prepaid expenses and other	256		240
Total current assets	7,074		6,960
PROPERTY, PLANT AND EQUIPMENT—Net	777		752
GOODWILL	7,927		7,889
OTHER INTANGIBLE ASSETS—Net	2,604		2,610
DEFERRED INCOME TAXES	18		17
OTHER	157		167
TOTAL ASSETS	$	18,557	$	18,395
LIABILITIES AND STOCKHOLDERS’ DEFICIT
CURRENT LIABILITIES:
Current portion of long-term debt	$	276	$	276
Short-term borrowings—trade receivable securitization facility	350		349
Accounts payable	197		218
Accrued and other current liabilities	740		773
Total current liabilities	1,563		1,616
LONG-TERM DEBT	19,394		19,384
DEFERRED INCOME TAXES	437		430
OTHER NON-CURRENT LIABILITIES	884		933
Total liabilities	22,278		22,363
TD GROUP STOCKHOLDERS’ DEFICIT:
Common stock - $.01 par value; authorized 224,400,000 shares; issued 58,853,007 and 58,612,028 at January 2, 2021 and September 30, 2020, respectively	1		1
Additional paid-in capital	1,656		1,581
Accumulated deficit	(4,314)		(4,359)
Accumulated other comprehensive loss	(277)		(401)
Treasury stock, at cost; 4,198,226 shares at January 2, 2021 and September 30, 2020, respectively	(794)		(794)
Total TD Group stockholders’ deficit	(3,728)		(3,972)
NONCONTROLLING INTERESTS	7		4
Total stockholders’ deficit	(3,721)		(3,968)
TOTAL LIABILITIES AND STOCKHOLDERS’ DEFICIT	$	18,557	$	18,395

See Notes to Condensed Consolidated Financial Statements

1

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF INCOME

(Amounts in millions, except per share amounts)

(Unaudited) 

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
NET SALES	$	1,108	$	1,465
COST OF SALES	567		664
GROSS PROFIT	541		801
SELLING AND ADMINISTRATIVE EXPENSES	197		201
AMORTIZATION OF INTANGIBLE ASSETS	29		40
INCOME FROM OPERATIONS	315		560
INTEREST EXPENSE—NET	267		248
REFINANCING COSTS	—		22
OTHER INCOME	(5)		(3)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	53		293
INCOME TAX PROVISION	3		59
INCOME FROM CONTINUING OPERATIONS	50		234
INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX	—		71
NET INCOME	50		305
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	—		(1)
NET INCOME ATTRIBUTABLE TO TD GROUP	$	50	$	304
NET (LOSS) INCOME APPLICABLE TO TD GROUP COMMON STOCKHOLDERS	$	(23)	$	119
(Loss) Earnings per share attributable to TD Group common stockholders:
(Loss) Earnings per share from continuing operations—basic and diluted	$	(0.42)	$	0.83
Earnings per share from discontinued operations—basic and diluted	—		1.24
(Loss) Earnings per share	$	(0.42)	$	2.07
Cash dividends paid per common share	$	—	$	32.50
Weighted-average shares outstanding:
Basic and diluted	54.7		57.4

See Notes to Condensed Consolidated Financial Statements

2

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(Amounts in millions)

(Unaudited)

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Net income	$	50	$	305
Less: Net income attributable to noncontrolling interests	—		(1)
Net income attributable to TD Group	$	50	$	304
Other comprehensive income, net of tax:
Foreign currency translation	111		98
Unrealized gain on derivatives	13		23
Pensions and other postretirement benefits	—		6
Other comprehensive income, net of tax, attributable to TD Group	124		127
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO TD GROUP	$	174	$	431

See Notes to Condensed Consolidated Financial Statements

3

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ DEFICIT

(Amounts in millions, except share amounts)

(Unaudited)

	TD Group Stockholders
	Common Stock			Additional Paid-In Capital				Accumulated Other Comprehensive Loss		Treasury Stock
	Number of Shares	Par Value				Accumulated Deficit				Number of Shares	Value		Non-controlling Interests		Total
BALANCE—September 30, 2019	57,623,311	$	1	$	1,379	$	(3,120)	$	(379)	(4,161,326)	$	(775)	$	10	$	(2,884)
Changes in noncontrolling interest of consolidated subsidiaries, net	—	—		—		—		—		—	—		(6)		(6)
Special dividends and vested dividend equivalents declared	—	—		—		(1,864)		—		—	—		—		(1,864)
Accrued unvested dividend equivalents and other	—	—		—		(19)		—		—	—		—		(19)
Compensation expense recognized for employee stock options	—	—		23		—		—		—	—		—		23
Exercise of employee stock options	169,470	—		20		—		—		—	—		—		20
Net income attributable to TD Group	—	—		—		304		—		—	—		—		304
Foreign currency translation adjustments, net of tax	—	—		—		—		98		—	—		—		98
Unrealized gain on derivatives, net of tax	—	—		—		—		23		—	—		—		23
Pensions and other postretirement benefits adjustments, net of tax	—	—		—		—		6		—	—		—		6
BALANCE—December 28, 2019	57,792,781	$	1	$	1,422	$	(4,699)	$	(252)	(4,161,326)	$	(775)	$	4	$	(4,299)

	TD Group Stockholders
	Common Stock			Additional Paid-In Capital				Accumulated Other Comprehensive Loss		Treasury Stock
	Number of Shares	Par Value				Accumulated Deficit				Number of Shares	Value		Non-controlling Interests		Total
BALANCE—September 30, 2020	58,612,028	$	1	$	1,581	$	(4,359)	$	(401)	(4,198,226)	$	(794)	$	4	$	(3,968)
Changes in noncontrolling interest of consolidated subsidiaries, net	—	—		—		—		—		—	—		3		3
Accrued unvested dividend equivalents and other	—	—		—		(5)		—		—	—		—		(5)
Compensation expense recognized for employee stock options	—	—		43		—		—		—	—		—		43
Exercise of employee stock options	240,979	—		32		—		—		—	—		—		32
Net income attributable to TD Group	—	—		—		50		—		—	—		—		50
Foreign currency translation adjustments, net of tax	—	—		—		—		111		—	—		—		111
Unrealized gain on derivatives, net of tax	—	—		—		—		13		—	—		—		13
Pensions and other postretirement benefits adjustments, net of tax	—	—		—		—		—		—	—		—		—
BALANCE—January 2, 2021	58,853,007	$	1	$	1,656	$	(4,314)	$	(277)	(4,198,226)	$	(794)	$	7	$	(3,721)

See Notes to Condensed Consolidated Financial Statements

4

TRANSDIGM GROUP INCORPORATED

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(Amounts in millions)

(Unaudited)

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
OPERATING ACTIVITIES:
Net income	$	50	$	305
Net income from discontinued operations	—		(71)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	29		29
Amortization of intangible assets	29		40
Amortization of debt issuance costs, original issue discount and premium	9		8
Amortization of loss contract reserves	(18)		(11)
Refinancing costs	—		22
Non-cash stock compensation	49		26
Deferred income taxes	5		(2)
Changes in assets/liabilities, net of effects from acquisitions of businesses:
Trade accounts receivable	86		51
Inventories	1		(69)
Income taxes receivable/payable	16		30
Other assets	3		(5)
Accounts payable	(20)		(14)
Accrued interest	7		88
Accrued and other liabilities	28		6
Net cash provided by operating activities	274		433
INVESTING ACTIVITIES:
Capital expenditures	(31)		(27)
Acquisition of businesses, net of cash acquired	(6)		—
Net proceeds from sale of businesses	8		904
Net cash (used in) provided by investing activities	(29)		877
FINANCING ACTIVITIES:
Proceeds from exercise of stock options	32		20
Dividend equivalent payments	(73)		(64)
Repayment on term loans	(19)		—
Redemption of 6.00% senior subordinated notes due 2022, net	—		(1,168)
Proceeds from 5.50% senior subordinated notes due 2027, net	—		2,625
Financing costs and other, net	—		1
Net cash (used in) provided by financing activities	(60)		1,414
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	5		3
NET INCREASE IN CASH AND CASH EQUIVALENTS	190		2,727
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	4,717		1,467
CASH AND CASH EQUIVALENTS, END OF PERIOD	$	4,907	$	4,194
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest	$	252	$	155
Cash (refunded) paid during the period for income taxes, net	$	(5)	$	29

See Notes to Condensed Consolidated Financial Statements

5

TRANSDIGM GROUP INCORPORATED

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

THIRTEEN WEEK PERIODS ENDED JANUARY 2, 2021 AND DECEMBER 28, 2019

(UNAUDITED)

1.    DESCRIPTION OF THE BUSINESS AND IMPACT OF COVID-19 PANDEMIC

Description of the Business

TransDigm Group Incorporated (“TD Group”), through its wholly-owned subsidiary, TransDigm Inc., is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly every commercial and military aircraft in service today. TransDigm Inc., along with TransDigm Inc.’s direct and indirect wholly-owned operating subsidiaries (collectively, with TD Group, the “Company” or “TransDigm”), offers a broad range of proprietary aerospace products. TD Group has no significant assets or operations other than its 100% ownership of TransDigm Inc. TD Group’s common stock is listed on the New York Stock Exchange, or the NYSE, under the trading symbol “TDG.”

TransDigm's major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, databus and power controls, cockpit security components and systems, specialized and advanced cockpit displays, aircraft audio systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, advanced sensor products, switches and relay panels, thermal protection and insulation, lighting and control technology, parachutes, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems.

Impact of COVID-19 Pandemic - Restructuring Costs

The commercial aerospace industry continues to be significantly disrupted, both domestically and internationally, by the COVID-19 pandemic resulting in ongoing business challenges. Material actions to reduce costs in response to the impact that the pandemic has had on operating results include: (1) reducing the Company's workforce to align operations with customer demand through a reduction in force or through a realignment of certain business units; (2) implementing unpaid furloughs and salary reductions; (3) delaying non-essential capital projects and (4) minimizing discretionary spending.

For the thirteen week period ended January 2, 2021, COVID-19 restructuring costs of approximately $20 million were incurred, of which $13 million was recorded in cost of sales and $7 million was recorded in selling and administrative expenses on the condensed consolidated statements of income. These costs are primarily related to the Company's actions to reduce its workforce to align with customer demand. Additionally, the Company incurred approximately $1 million in incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.). There were no COVID-19 restructuring costs or incremental costs incurred related to the pandemic for the thirteen week period ended December 28, 2019.

As of January 2, 2021 and September 30, 2020, the restructuring accrual associated with the costs incurred in response to the COVID-19 pandemic was approximately $27 million and $13 million, respectively. This accrual is recorded as a component of accrued and other current liabilities on the condensed consolidated balance sheets. The Company expects to incur and pay additional restructuring costs during fiscal 2021 related to the COVID-19 pandemic though at a reduced level in comparison to fiscal 2020. The Company continues to analyze its cost structure and may implement additional cost reduction measures as necessary due to the ongoing business challenges resulting from the COVID-19 pandemic.

2.    UNAUDITED INTERIM FINANCIAL INFORMATION

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 year ended September 30, 2020 included in TD Group’s Form 10-K filed on November 12, 2020. 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, 2020 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the thirteen week period ended January 2, 2021 are not necessarily indicative of the results to be expected for the full year.

6

3.    ACQUISITIONS AND DIVESTITURES

Acquisitions

Cobham Aero Connectivity – On November 24, 2020, the Company entered into a definitive agreement to acquire Cobham Aero Connectivity (“CAC”) for approximately $959 million in cash. The acquisition was substantially completed on January 5, 2021 and financed through existing cash on hand. A portion of the acquisition representing approximately 2% of the purchase price remains subject to Finnish regulatory approval and is expected to close during the second quarter of fiscal 2021. CAC operates from two primary facilities (Marlow, United Kingdom and Prescott, Arizona) and is a leading provider of highly engineered antennas and radios for the aerospace end market. The products are primarily proprietary with significant aftermarket content and have a strong presence across major defense platforms as well as select commercial applications. CAC will be included in TransDigm's Airframe segment.

The acquisition will 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 strategies (obtaining profitable new business, improving our cost structure, and providing highly engineered value-added products to customers). The purchase price paid for the acquisition reflects the current earnings before interest, taxes, depreciation and amortization (EBITDA) and cash flows, as well as the future EBITDA and cash flows expected to be generated by the business, 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.

Divestitures

Racal Acoustics – On January 29, 2021, TransDigm completed the divestiture of the Racal Acoustics business (“Racal”) to Invisio Communications AB for approximately $20 million in cash. Racal was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and is included in TransDigm's Non-aviation segment. During the first quarter of fiscal 2021, the Company determined Racal met the criteria to be classified as held for sale. Therefore, the assets and liabilities of Racal, which are not material, have been presented as held for sale in the condensed consolidated balance sheet as of January 2, 2021.

Avista – On November 17, 2020, TransDigm completed the divestiture of the Avista, Inc. business ("Avista") to Belcan, LLC ("Belcan") for approximately $8 million. Avista was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and was included in TransDigm's Airframe segment. During the fourth quarter of fiscal 2020, the Company determined Avista met the criteria to be classified as held for sale. Therefore, the assets and liabilities of Avista, which were not material, have been presented as held for sale in the condensed consolidated balance sheet as of September 30, 2020.

Souriau-Sunbank – On December 20, 2019, TransDigm completed the divestiture of the Souriau-Sunbank Connection Technologies business (“Souriau-Sunbank”) to Eaton Corporation plc (“Eaton”) for approximately $920 million. Souriau-Sunbank was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and was included in TransDigm's Non-aviation segment. Refer to Note 18, "Discontinued Operations," for additional disclosures on the Souriau-Sunbank divestiture.

4.    RECENT ACCOUNTING PRONOUNCEMENTS

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments—Credit Losses: Measurement of Credit Losses on Financial Instruments (ASU 2016-13)," which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. The Company adopted ASU 2016-13 on October 1, 2020. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. Refer to Note 5, "Revenue Recognition," for additional disclosures.

In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment,” to eliminate Step 2 from the goodwill impairment test in order to simplify the subsequent measurement of goodwill. The guidance is effective for the Company on October 1, 2020. The adoption of this standard did not have a material impact on our condensed consolidated financial statements and disclosures.

7

In December 2019, the FASB issued ASU 2019-12, “Income Taxes (ASC 740) - Simplifying the Accounting for Income Taxes,” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in ASC 740. The amendments also improve consistent application of and simplify U.S. GAAP for other areas of ASC 740 by clarifying and amending existing guidance. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption of the amendments is permitted, including adoption in any interim period for which financial statements have not yet been issued. Depending on the amendment, adoption may be applied on the retrospective, modified retrospective or prospective basis. The Company is currently evaluating the impact of adopting this standard on our condensed consolidated financial statements and disclosures.

In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform." This ASU provides optional guidance for a limited period of time to ease potential accounting impacts associated with transitioning away from reference rates that are expected to be discontinued, such as the London Interbank Offered Rate ("LIBOR"). The amendments in this ASU apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued. The amendments in this ASU are effective through December 31, 2022. The Company is currently evaluating the impact of adopting this standard on our condensed consolidated financial statements and disclosures.

5.    REVENUE RECOGNITION

TransDigm's sales are concentrated in the aerospace 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 and friendly foreign governments, defense OEMs, system suppliers, and various other industrial customers.

The majority of the Company's revenue is recorded at a point in time. Revenue is recognized from the sale of products when control transfers to the customer, which is demonstrated by our right to payment, a transfer of title, a transfer of the risk and rewards of ownership, or the customer acceptance, but most frequently upon shipment where the customer obtains physical possession of the goods.

In some 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 the current year. 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 assesses 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.

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 condensed 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.

8

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 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):

	January 2, 2021		September 30, 2020		Change
Contract assets, current (1)	$	49	$	36	$	13
Contract assets, non-current (2)	2		6		(4)
Total contract assets	51		42		9
Contract liabilities, current (3)	19		18		1
Contract liabilities, non-current (4)	5		9		(4)
Total contract liabilities	24		27		(3)
Net contract assets	$	27	$	15	$	12

(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 thirteen week period ended January 2, 2021, the revenue recognized that was previously included in contract liabilities was not material.

Refer to Note 13, “Segments,” for disclosures related to the disaggregation of revenue.

Allowance for Credit Losses - The Company's allowance for credit losses is the allowance for uncollectible accounts. The allowance for uncollectible accounts reduces the trade accounts receivable balance to the estimated net realizable value equal to the amount that is expected to be collected.

The Company’s method for developing its allowance for credit losses is based on historical write-off experience, the aging of receivables, an assessment of the creditworthiness of customers, economic conditions and other external market information. All provisions for allowances for uncollectible accounts are included in selling and administrative expenses.

The allowance for uncollectible accounts was $41 million and $37 million as of January 2, 2021 and September 30, 2020, respectively. The increase in the allowance for uncollectible accounts in the first quarter of fiscal 2021 is primarily driven by additional collectibility risk assessed on receivables from certain customers that have been significantly adversely impacted by the COVID-19 pandemic. The allowance for uncollectible accounts is assessed individually at each operating unit by the operating unit’s management team.

9

6.    (LOSS) EARNINGS PER SHARE

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

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Numerator for (loss) earnings per share:
Income from continuing operations	$	50	$	234
Less: Net income attributable to noncontrolling interests	—		(1)
Net income from continuing operations attributable to TD Group	50		233
Less: Special dividends declared or paid on participating securities, including dividend equivalent payments	(73)		(185)
Income from discontinued operations, net of tax	—		71
Net (loss) income applicable to TD Group common stockholders - basic and diluted	$	(23)	$	119
Denominator for basic and diluted (loss) earnings per share under the two-class method:
Weighted-average common shares outstanding	54.7		53.6
Vested options deemed participating securities	—		3.8
Total shares for basic and diluted (loss) earnings per share	54.7		57.4
(Loss) Earnings per share from continuing operations—basic and diluted	$	(0.42)	$	0.83
Earnings per share from discontinued operations—basic and diluted	—		1.24
(Loss) Earnings per share	$	(0.42)	$	2.07

7. 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):

	January 2, 2021		September 30, 2020
Raw materials and purchased component parts	$	900	$	881
Work-in-progress	360		358
Finished goods	213		222
Total	1,473		1,461
Reserves for excess and obsolete inventory	(189)		(178)
Inventories - Net	$	1,284	$	1,283

8.    INTANGIBLE ASSETS

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

	January 2, 2021						September 30, 2020
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Trademarks and trade names	$	963	$	—	$	963	$	958	$	—	$	958
Technology	1,856		613		1,243		1,842		589		1,253
Order backlog	91		91		—		93		93		—
Customer relationships	449		58		391		443		52		391
Other	18		11		7		18		10		8
Total	$	3,377	$	773	$	2,604	$	3,354	$	744	$	2,610

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The aggregate amortization expense on identifiable intangible assets for the thirteen week periods ended January 2, 2021 and December 28, 2019 was approximately $29 million and $40 million, respectively. The estimated amortization expense is $115 million for fiscal year 2021, $114 million for each of the following four succeeding fiscal years 2022 through 2025 and $109 million for fiscal year 2026.

The following is a summary of changes in the carrying value of goodwill by segment from September 30, 2020 through January 2, 2021 (in millions):

	Power & Control		Airframe		Non- aviation		Total
Balance at September 30, 2020	$	4,141	$	3,647	$	101	$	7,889
Goodwill acquired during the period	4		—		—		4
Reclassification of goodwill to assets held-for-sale (Note 3)	—		—		(8)		(8)
Currency translation adjustments	15		27		—		42
Balance at January 2, 2021	$	4,160	$	3,674	$	93	$	7,927

9.    DEBT

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

	January 2, 2021
	Gross Amount		Debt Issuance Costs		Original Issue Discount or Premium		Net Amount
Short-term borrowings—trade receivable securitization facility	$	350	$	—	$	—	$	350
Term loans	$	7,429	$	(46)	$	(20)	$	7,363
Revolving credit facility	200		—		—		200
6.50% senior subordinated notes due 2024 (2024 Notes)	1,200		(4)		—		1,196
6.50% senior subordinated notes due 2025 (2025 Notes)	750		(2)		2		750
8.00% senior secured notes due 2025 (2025 Secured Notes)	1,100		(9)		—		1,091
6.375% senior subordinated notes due 2026 (6.375% 2026 Notes)	950		(6)		—		944
6.875% senior subordinated notes due 2026 (6.875% 2026 Notes)	500		(4)		(3)		493
6.25% senior secured notes due 2026 (2026 Secured Notes)	4,400		(53)		5		4,352
7.50% senior subordinated notes due 2027 (7.50% 2027 Notes)	550		(4)		—		546
5.50% senior subordinated notes due 2027 (5.50% 2027 Notes)	2,650		(21)		—		2,629
Government refundable advances	30		—		—		30
Finance lease obligations	76		—		—		76
	19,835		(149)		(16)		19,670
Less: current portion	277		(1)		—		276
Long-term debt	$	19,558	$	(148)	$	(16)	$	19,394

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	September 30, 2020
	Gross Amount		Debt Issuance Costs		Original Issue Discount or Premium		Net Amount
Short-term borrowings—trade receivable securitization facility	$	350	$	(1)	$	—	$	349
Term loans	$	7,449	$	(48)	$	(23)	$	7,378
Revolving credit facility	200		—		—		200
2024 Notes	1,200		(5)		—		1,195
2025 Notes	750		(3)		3		750
2025 Secured Notes	1,100		(9)		—		1,091
6.375% 2026 Notes	950		(6)		—		944
6.875% 2026 Notes	500		(4)		(3)		493
2026 Secured Notes	4,400		(55)		5		4,350
7.50% 2027 Notes	550		(5)		—		545
5.50 % 2027 Notes	2,650		(21)		—		2,629
Government refundable advances	28		—		—		28
Finance lease obligations	57		—		—		57
	19,834		(156)		(18)		19,660
Less: current portion	277		(1)		—		276
Long-term debt	$	19,557	$	(155)	$	(18)	$	19,384

Accrued interest, which is classified as a component of accrued and other current liabilities, was $185.0 million and $177.6 million as of January 2, 2021 and September 30, 2020, respectively.

Subsequent Event - Issuance of Senior Subordinated Notes due 2029 – On January 14, 2021, the Company entered into a purchase agreement in connection with a private offering of $1,200 million of 4.625% Senior Subordinated Notes due 2029 (herein, the “2029 Notes”) at an issue price of 100% of the principal amount. The 2029 Notes were issued pursuant to an indenture, dated January 20, 2021, among TransDigm, Inc., as issuer, TransDigm Group, TransDigm UK and the other subsidiaries of TransDigm, Inc. named therein, as guarantors.

The 2029 Notes bear interest at the rate of 4.625% per annum, which accrues from January 14, 2021 and is payable in arrears on January 15th and July 15th of each year, commencing on July 15, 2021. The 2029 Notes mature on January 15, 2029, unless earlier redeemed or repurchased, and are subject to the terms and conditions set forth in the indenture. The Company expects to use the net proceeds from the offering of the 2029 Notes to redeem all of its outstanding 2024 Notes.

Government Refundable Advances - Government refundable advances consist of payments received from the Canadian government to assist in research and development related to commercial aviation. The requirement to repay this advance is solely based on year-over-year commercial aviation revenue growth at CMC Electronics, which is a subsidiary of TransDigm. The balance was $29.8 million at January 2, 2021 and $28.4 million at September 30, 2020.

Obligations under Finance Leases - The Company leases certain buildings and equipment under finance leases. The present value of the minimum capital lease payments, net of the current portion, represents a balance of $75.6 million at January 2, 2021 and $56.8 million at September 30, 2020. Refer to Note 16, "Leases," for further disclosure on the Company's finance lease obligations.

10.    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 January 2, 2021 and December 28, 2019, the effective income tax rate was 5.5% and 20.1%, respectively. The Company's lower effective tax rate for the thirteen week period ended January 2, 2021, which also was lower than the Federal statutory tax rate of 21%, was primarily due to the significant discrete impact of excess tax benefits associated with share-based payments.

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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 2015. The Company is currently under examination for its federal income taxes in the U.S. for fiscal 2016, in Belgium for fiscal years 2016 through 2018, in Canada for fiscal years 2013 through 2015, in France for fiscal years 2015 through 2018, and in Germany for fiscal years 2014 through 2017. The Company expects the examination in France to be completed during the current fiscal year. In addition, the Company is subject to state income tax examinations for fiscal years 2015 and later.

At January 2, 2021 and September 30, 2020, TD Group had $42.2 million and $40.9 million, respectively, in unrecognized tax benefits, the recognition of which would have an effect of approximately $37.0 million and $35.7 million on the effective tax rate at January 2, 2021 and September 30, 2020, respectively. The Company believes the tax positions that comprise the unrecognized tax benefits will be reduced by approximately $22.0 million over the next 12 months. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense.

11.    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):

		January 2, 2021				September 30, 2020
	Level	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	4,907	$	4,907	$	4,717	$	4,717
Foreign currency forward exchange contracts and other (1)	2	3		3		—		—
Liabilities:
Interest rate swap agreements (2)	2	66		66		56		56
Interest rate swap agreements (3)	2	302		302		328		328
Foreign currency forward exchange contracts and other (2)	2	—		—		1		1
Short-term borrowings - trade receivable securitization facility (4)	2	350		350		349		349
Long-term debt, including current portion:
Term loans (4)	2	7,363		7,223		7,378		7,004
Revolving credit facility (4)	2	200		200		200		200
2024 Notes (4)	1	1,196		1,218		1,195		1,194
2025 Notes (4)	1	750		772		750		743
2025 Secured Notes (4)	1	1,091		1,209		1,091		1,194
6.375% 2026 Notes (4)	1	944		983		944		948
6.875% 2026 Notes (4)	1	493		526		493		500
2026 Secured Notes (4)	1	4,352		4,686		4,350		4,604
7.50% 2027 Notes (4)	1	546		587		545		569
5.50% 2027 Notes (4)	1	2,629		2,763		2,629		2,554
Government refundable advances	2	30		30		28		28
Finance lease obligations	2	76		76		57		57

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

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

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

(4)The carrying amount of the debt instrument is presented net of debt issuance costs, premium and discount. Refer to Note 9, "Debt," for gross carrying amounts.

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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 using unobservable inputs (i.e., Level 3).

Interest rate swaps were measured at fair value using quoted market prices for the swap interest rate indexes over the term of the swap discounted to present value versus the fixed rate of the contract. The interest rate caps were measured at fair value using implied volatility rates of each individual caplet and the yield curve for the related periods.

The Company’s derivative contracts consist of foreign currency exchange contracts and, from time to time, interest rate swap and cap agreements. These derivative contracts are over-the-counter, and their fair value is determined using modeling techniques that include market inputs such as interest rates, yield curves, and currency exchange rates. These contracts are categorized as Level 2 in the fair value hierarchy.

The estimated fair value of the Company’s term loans was based on information provided by the agent under the Company’s senior secured credit facility. The estimated fair values of the Company’s notes were based upon quoted market prices. 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 impact to the fair value of derivative assets based on the Company's evaluation of counterparties' credit risks.

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 January 2, 2021 and September 30, 2020.

12.    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 and cap counterparties that contain a provision whereby if the Company defaults on the credit facility the Company could also be declared in default on its swaps and caps, resulting in an acceleration of payment under the swaps and caps.

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 sheet 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 and Cap Agreements – Interest rate swap and cap agreements are used to manage interest rate risk associated with floating-rate borrowings under our credit facility. The interest rate swap and cap 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 through the expiration date of the interest rate swap and cap agreements, thereby reducing the impact of interest rate changes on future interest expense. 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. These derivative instruments qualify as effective cash flow hedges under U.S. GAAP. For these cash flow hedges, the effective portion of the gain or loss from the financial instruments was 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 affected earnings. As the interest rate swap and cap 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.

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The following table summarizes the Company's interest rate swap agreements:

Aggregate Notional Amount (in millions)	Start Date	End Date	Related Term Loans	Conversion of Related Variable Rate Debt to Fixed Rate of:
$500	6/29/2018	3/31/2025	Tranche E	5.25% (3.0% plus the 2.25% margin percentage)
$750	6/30/2020	6/30/2022	Tranche E	4.75% (2.5% plus the 2.25% margin percentage)
$1,500	6/30/2022	3/31/2025	Tranche E	5.35% (3.1% plus the 2.25% margin percentage)
$1,000	6/28/2019	12/9/2025	Tranche F	4.05% (1.8% plus the 2.25% margin percentage)
$1,400	6/30/2021	12/9/2025	Tranche F	5.25% (3.0% plus the 2.25% margin percentage)
$500	12/30/2016	12/31/2021	Tranche G	4.15% (1.9% plus the 2.25% margin percentage)
$400	9/30/2017	9/30/2022	Tranche G	4.15% (1.9% plus the 2.25% margin percentage)
$900	12/31/2021	6/28/2024	Tranche G	5.35% (3.1% plus the 2.25% margin percentage)
$400	9/30/2022	6/28/2024	Tranche G	5.25% (3.0% plus the 2.25% margin percentage)

The following table summarizes the Company's interest rate cap agreements:

Aggregate Notional Amount (in millions)	Start Date	End Date	Related Term Loans	Offsets Variable Rate Debt Attributable to Fluctuations Above:
$750	6/30/2020	6/30/2022	Tranche E	Three month LIBOR rate of 2.5%
$400	6/30/2016	6/30/2021	Tranche F	Three month LIBOR rate of 2.0%
$400	12/30/2016	12/31/2021	Tranche G	Three month LIBOR rate of 2.5%

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 sheet and the net amounts of assets and liabilities presented therein (in millions).

	January 2, 2021				September 30, 2020
	Asset		Liability		Asset		Liability
Interest rate swap agreements (1)	$	—	$	(368)	$	—	$	(384)

(1)Refer to Note 11, "Fair Value Measurements," for the condensed consolidated balance sheet classification of our interest rate swap agreements.

Based on the fair values of the interest rate swap and cap agreements determined as of January 2, 2021, the estimated net amount of existing gains and losses and caplet amortization expected to be reclassified into interest expense within the next twelve months is approximately $13.7 million.

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 January 2, 2021, the Company had outstanding foreign currency forward exchange contracts to sell U.S. dollars with notional amounts of $123.6 million. These notional values consist of contracts for the Canadian dollar and the European euro and are stated in U.S. dollar equivalents at spot exchange rates at the respective trade dates. There was an immaterial impact to the Company's earnings related to the effective and ineffective portion of the foreign currency forward exchange contracts designated as cash flow hedges for the thirteen week period ended January 2, 2021.

Amounts related to foreign currency forward exchange contracts included in accumulated other comprehensive loss in stockholders' deficit are reclassified into earnings when the hedged transaction settles. The maximum duration of the Company’s foreign currency cash flow hedge contracts at January 2, 2021 is 9 months. As of January 2, 2021, the Company expects to reclassify approximately $5.8 million of unrealized gain classified in other comprehensive income into earnings over the next 9 months.

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13.    SEGMENTS

The Company’s businesses are organized and managed in three reporting segments: Power & Control, Airframe and Non-aviation.

The Power & Control segment includes operations that primarily develop, produce and market systems and components that predominately provide power to or control power of the aircraft utilizing electronic, fluid, power and mechanical motion control technologies. Major product offerings include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, databus and power controls, advanced sensor products, switches and relay panels, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems. Primary customers of this segment are engine and power system and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies and repair depots. Products are sold in the original equipment and aftermarket market channels.

The Airframe segment includes operations that primarily develop, produce and market systems and components that are used in non-power airframe applications utilizing airframe and cabin structure technologies. Major product offerings include engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, cockpit security components and systems, specialized and advanced cockpit displays, aircraft audio systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, thermal protection and insulation, lighting and control technology and parachutes. Primary customers of this segment are airframe manufacturers and cabin system suppliers and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies and repair depots. Products are sold in the original equipment and aftermarket market channels.

The Non-aviation segment includes operations that primarily develop, produce and market products for non-aviation markets. Major product offerings include headsets for high-noise, medium-noise, and dismounted applications, seat belts and safety restraints for ground transportation applications, mechanical/electro-mechanical actuators and controls for space applications, hydraulic/electromechanical actuators and fuel valves for land based gas turbines, and refueling systems for heavy equipment used in mining, construction and other industries and turbine controls for the energy and oil and gas markets. Primary customers of this segment are off-road vehicle suppliers and subsystem suppliers, child restraint system suppliers, satellite and space system suppliers, manufacturers of heavy equipment used in mining, construction and other industries and turbine original equipment manufacturers, gas pipeline builders and electric utilities.

The primary measurement used by management to review and assess the operating performance of each segment is EBITDA As Defined. 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 plans, restructuring costs related to the Company's cost reduction measures in response to the COVID-19 pandemic, foreign currency gains and losses, acquisition-integration costs, acquisition transaction-related expenses, and refinancing costs. COVID-19 restructuring costs represent actions taken by the Company to reduce its workforce to align with customer demand, as well as incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.). Acquisition-related costs represent accounting adjustments to inventory associated with acquisitions of businesses and product lines that were charged to cost of sales when the inventory was sold; costs incurred to integrate acquired businesses and product lines into the Company’s operations, facility relocation costs and other acquisition-related costs; transaction-related costs comprising deal fees; legal, financial and tax diligence expenses and valuation costs that are required to be expensed as incurred and other acquisition accounting adjustments.

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 Company’s segments are reported on the same basis used internally for evaluating performance and for allocating resources. The accounting policies for each segment are the same as those described in the summary of significant accounting policies in the Company’s consolidated financial statements. 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. Certain corporate-level expenses are allocated to the operating segments.

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The following table presents net sales by reportable segment (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Net sales to external customers
Power & Control
Commercial OEM	$	126	$	184
Commercial Aftermarket	132		220
Defense	343		348
Total Power & Control	601		752
Airframe
Commercial OEM	142		230
Commercial Aftermarket	112		245
Defense	210		199
Total Airframe	464		674
Total Non-aviation	43		39
	$	1,108	$	1,465

The following table reconciles EBITDA As Defined by segment to consolidated income from continuing operations before income taxes (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
EBITDA As Defined
Power & Control	$	304	$	385
Airframe	177		305
Non-aviation	15		13
Total segment EBITDA As Defined	496		703
Less: Unallocated corporate expenses	22		22
Total Company EBITDA As Defined	474		681
Depreciation and amortization expense	58		69
Interest expense, net	267		248
Acquisition-related costs	4		7
Stock compensation expense	49		26
Refinancing costs	—		22
COVID-19 pandemic restructuring costs	21		—
Other, net	22		16
Income from continuing operations before income taxes	$	53	$	293

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

	January 2, 2021		September 30, 2020
Total assets
Power & Control	$	7,022	$	7,005
Airframe	6,603		6,575
Non-aviation	241		251
Corporate	4,691		4,564
	$	18,557	$	18,395

The Company’s sales principally originate from the United States, and the Company’s long-lived assets are principally located in the United States.

14.    RETIREMENT PLANS

The components of net periodic pension cost for the Company's defined benefit plans were as follows (in millions):

	Thirteen Week Periods Ended
	January 2, 2021				December 28, 2019
	U.S. Pension Plans		Non-U.S. Pension Plans		U.S. Pension Plans		Non-U.S. Pension Plans
Service cost	$	2	$	1	$	2	$	1
Interest cost	2		1		3		1
Expected return on plan assets	(5)		(2)		(5)		(1)
Amortization	—		1		—		—
Net periodic pension (benefit) cost	$	(1)	$	1	$	—	$	1

The net periodic pension cost for the Company's post-retirement pension plans was immaterial for the thirteen week periods ended January 2, 2021 and December 28, 2019. The defined benefit plan components of total pension cost, other than service cost, are included in other expense in the Company's condensed consolidated statements of income.

15.    ACCUMULATED OTHER COMPREHENSIVE LOSS

The following table presents the components of accumulated other comprehensive loss, net of taxes, for the thirteen week period ended January 2, 2021 (in millions):

	Unrealized gains on derivatives designated and qualifying as cash flow hedges (1)		Defined benefit pension plan activity (2)		Currency translation adjustment		Total
Balance at September 30, 2020	$	(302)	$	(8)	$	(91)	$	(401)
Current-period other comprehensive income	13		—		111		124
Balance at January 2, 2021	$	(289)	$	(8)	$	20	$	(277)

(1)Unrealized gains represents derivative instruments, net of taxes of $(5.0) million and $(9.8) million for the thirteen week periods ended January 2, 2021 and December 28, 2019, respectively.

(2)There were no material pension liability adjustments, net of taxes, for the thirteen week periods ended January 2, 2021 and December 28, 2019.

Reclassifications out of accumulated other comprehensive loss for the thirteen week periods ended January 2, 2021 and December 28, 2019 were immaterial.

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16.    LEASES

The Company leases certain manufacturing facilities, offices, land, equipment and vehicles. Such leases, some of which are noncancelable and, in many cases, include renewals, expire at various dates. Such options to renew are included in the lease term when it is reasonably certain that the option will be exercised. The Company’s lease agreements typically do not contain any significant residual value guarantees or restrictive covenants, and payments within certain lease agreements are adjusted periodically for changes in an index or rate.

The Company determines if an arrangement is a lease at inception. Operating lease assets and liabilities are recognized at the commencement date of the lease based on the present value of lease payments over the lease term. Lease assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The discount rate implicit within our leases is generally not determinable and therefore we determine the discount rate based on our incremental borrowing rate. The incremental borrowing rate for our leases is determined based on the lease term and the currency in which lease payments are made. The length of a lease term includes options to extend or terminate the lease when it is reasonably certain that the Company will exercise those options. The Company made an accounting policy election to not recognize lease assets or liabilities for leases with a term of 12 months or less. Additionally, when accounting for leases, the Company combines payments for leased assets, related services and other components of a lease.

The components of lease expense for the are as follows (in millions):

		Thirteen Week Periods Ended
	Classification	January 2, 2021		December 28, 2019
Operating lease cost	Cost of Sales or Selling and Administrative Expenses	$	7	$	7
Finance lease cost
Amortization of leased assets	Cost of Sales	$	1	$	1
Interest on lease liabilities	Interest Expense - Net	1		1
Total lease cost		$	9	$	9

Supplemental cash flow information related to leases is as follows (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	7	$	7
Operating cash outflows from finance leases	1		1
Lease assets obtained in exchange for new lease obligations:
Operating leases	$	4	$	10
Finance leases	19		—

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Supplemental balance sheet information related to leases is as follows (in millions):

	Classification	January 2, 2021		September 30, 2020
Operating Leases
Operating lease right-of-use assets	Other Assets	$	93	$	103
Current operating lease liabilities	Accrued and Other Current Liabilities	22		22
Long-term operating lease liabilities	Other Non-current Liabilities	75		87
Total operating lease liabilities		$	97	$	109
Finance Leases
Finance lease right-of-use assets, net	Property, Plant and Equipment—Net	$	87	$	67
Current finance lease liabilities	Accrued and Other Current Liabilities	2		2
Long-term finance lease liabilities	Other Non-current Liabilities	74		55
Total finance lease liabilities		$	76	$	57

As of January 2, 2021, the Company has the following remaining lease term and weighted average discount rates:

Weighted-average remaining lease term
Operating leases	5.8 years
Finance leases	19.9 years
Weighted-average discount rate
Operating leases	6.2%
Finance leases	7.2%

    Maturities of lease liabilities at January 2, 2021 are as follows (in millions):

	Operating Leases		Finance Leases
2021	$	21	$	7
2022	23		7
2023	18		7
2024	15		7
2025	12		7
Thereafter	28		117
Total future minimum lease payments	117		152
Less: imputed interest	20		76
Present value of lease liabilities reported	$	97	$	76

17.    COMMITMENTS AND CONTINGENCIES

On August 8, 2019, a fire caused significant damage to the Niort, France operating facility of the Leach International Europe subsidiary, which is reported within the Company’s Power & Control segment. The facility as well as certain machinery, equipment and inventory sustained damage. The Company suspended operations at the Niort facility as a result of the fire; however, has transferred certain operations to temporary facilities until operations are fully restored at the rebuilt facility. The new facility was completed in December 2020 and certain production commenced in January 2021. The facility is expected to be fully operational in the second quarter of fiscal 2021. 

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The Company’s insurance covers damage to the facility, equipment, inventory, and other assets, at replacement cost, as well as business interruption, and recovery-related expenses caused by the fire, subject to a $1 million deductible and certain sub-limits based on the nature of the covered item. Anticipated insurance recoveries related to losses and incremental costs incurred are recognized when receipt is probable. Anticipated insurance recoveries in excess of net book value of the damaged property and inventory will not be recorded until all contingencies relating to the claim have been resolved. As of January 2, 2021, approximately $27 million in insurance proceeds have been received. The recoveries received were previously recorded as an insurance recovery receivable (classified as a component of prepaid expenses and other on the condensed consolidated balance sheets) at the time of loss. The timing of and amount of insurance recoveries for business interruption is not known at this time.

18.    DISCONTINUED OPERATIONS

Prior Year Divestitures

On December 20, 2019, TransDigm completed the divestiture of Souriau-Sunbank to Eaton for approximately $920 million. Souriau-Sunbank was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and was included in TransDigm’s Non-aviation segment. The divestiture represented a strategic shift in TransDigm’s business and, in accordance with U.S. GAAP, qualified as discontinued operations.

Income from discontinued operations, net of tax, for the thirteen week period ended December 28, 2019 was $71 million. This was comprised of $9 million income from Souriau-Sunbank's operations, and a gain on the sale of Souriau-Sunbank of $62 million.

    Operating Results Summary

The following is the summarized operating results for Souriau-Sunbank for the thirteen week period ended December 28, 2019 (in millions):

	Thirteen Week Period Ended
	December 28, 2019
Net sales	$	79
Income from discontinued operations before income taxes	13
Income tax expense	4
Income from discontinued operations, net of tax	9
Gain from sale of discontinued operations, net of tax	62
Income from discontinued operations, net of tax	$	71

Current Year Divestitures

No divestitures occurring in the thirteen week period ended January 2, 2021 met the criteria to qualify as discontinued operations under U.S. GAAP. Refer to Note 3, "Acquisitions and Divestitures," for additional details on the Company's fiscal 2021 divestitures.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Forward-looking Statements

The following discussion of the Company’s financial condition and results of operations should be read together with TD Group’s condensed consolidated financial statements and the related notes included elsewhere in this Quarterly Report on Form 10-Q. References in this section to “TransDigm,” “the Company,” “we,” “us,” “our,” and similar references refer to TD Group, TransDigm, Inc. and TransDigm, Inc.’s subsidiaries, unless the context otherwise indicates.

This Quarterly Report on Form 10-Q contains both historical and “forward-looking statements” within the meaning of Section 21E of the Exchange Act, and 27A of the Securities Act. All statements other than statements of historical fact included that address activities, events or developments that we expect, believe or anticipate will or may occur in the future are forward-looking statements, including, in particular, the statements about our plans, objectives, strategies and prospects regarding, among other things, our financial condition, results of operations and business. We have identified some of these forward-looking statements with words like “believe,” “may,” “will,” “should,” “expect,” “intend,” “plan,” “predict,” “anticipate,” “estimate” or “continue” and other words and terms of similar meaning. These forward-looking statements may be contained throughout this Quarterly Report on Form 10-Q. These forward-looking statements are based on current expectations about future events affecting us and are subject to uncertainties and factors relating to, among other things, our operations and business environment, all of which are difficult to predict and many of which are beyond our control. Many factors mentioned in our discussion in this Quarterly Report on Form 10-Q, including the risks outlined under “Risk Factors,” will be important in determining future results. Although we believe that the expectations reflected in these forward-looking statements are reasonable, we do not know whether our expectations will prove correct. They can be affected by inaccurate assumptions we might make or by known or unknown risks and uncertainties, including those described under “Risk Factors” in the Quarterly Report on Form 10-Q. Since our actual results, performance or achievements could differ materially from those expressed in, or implied by, these forward-looking statements, we cannot give any assurance that any of the events anticipated by these forward-looking statements will occur or, if any of them does occur, what impact they will have on our business, results of operations and financial condition. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date they are made. We do not undertake any obligation to update these forward-looking statements or the risk factors contained in this Quarterly Report on Form 10-Q to reflect new information, future events or otherwise, except as may be required under federal securities laws.

Important factors that could cause actual results to differ materially from the forward-looking statements made in this Quarterly Report on Form 10-Q include but are not limited to: the impact that the COVID-19 pandemic has on our business, results of operations, financial condition and liquidity; the sensitivity of our business to the number of flight hours that our customers’ planes spend aloft and our customers’ profitability, both of which are affected by general economic conditions; future geopolitical or other worldwide events; cyber-security threats and natural disasters; our reliance on certain customers; the U.S. defense budget and risks associated with being a government supplier including government audits and investigations; failure to maintain government or industry approvals; failure to complete or successfully integrate acquisitions; our indebtedness; potential environmental liabilities; liabilities arising in connection with litigation; increases in raw material costs, taxes and labor costs that cannot be recovered in product pricing; risks and costs associated with our international sales and operations; and other factors. Refer to Item 1A included in this Quarterly Report on Form 10-Q and to Item 1A of the Annual Report on Form 10-K for additional information regarding the foregoing factors that may affect our business.

Overview

We believe we are a leading global designer, producer and supplier of highly engineered proprietary aerospace components with significant aftermarket content. We seek to develop highly customized products to solve specific needs for aircraft operators and manufacturers. We attempt to differentiate ourselves based on engineering, service and manufacturing capabilities. We typically choose not to compete for non-proprietary “build to print” business because it frequently offers lower margins than proprietary products. We believe that our products have strong brand names within the industry and that we have a reputation for high quality, reliability and strong customer support. Our business is well diversified due to the broad range of products that we offer to our customers. Our major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, databus and power controls, cockpit security components and systems, specialized and advanced cockpit displays, aircraft audio systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, advanced sensor products, switches and relay panels, thermal protection and insulation, lighting and control technology, parachutes, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems. Each of these product offerings is composed of many individual products that are typically customized to meet the needs of a particular aircraft platform or customer.

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For the first quarter of fiscal year 2021, we generated net sales of $1,108 million and net income attributable to TD Group of $50 million. EBITDA As Defined was $474 million, or 42.8% of net sales. Refer to the "Non-GAAP Financial Measures" section for certain information regarding EBITDA and EBITDA As Defined, including reconciliations of EBITDA and EBITDA As Defined to income from continuing operations and net cash provided by operating activities.

COVID-19 was first reported in December 2019, and since being declared as a pandemic by the World Health Organization in March 2020, has dramatically impacted the global health and economic environment, including millions of confirmed cases, business slowdowns or shutdowns, government challenges and market volatility. The commercial aerospace industry, in particular, has been significantly disrupted, both domestically and internationally, by the pandemic. The pandemic has resulted in governments around the world implementing stringent measures to help control the spread of the virus, including quarantines, “shelter in place” and “stay at home” orders, travel restrictions, business curtailments and other measures. As a result, demand for travel declined at a rapid pace beginning in the second half of fiscal 2020 and has remained significantly depressed compared to pre-pandemic levels.

Although commercial air travel demand has shown slight signs of recovery in recent months, the recovery is expected to continue to be slow and uneven depending on factors such as the trends in the number of COVID-19 infections (e.g., impact of new variants of COVID-19 surfacing), the rollout and effectiveness of the vaccine, and the eventual easing of quarantines and travel restrictions, among other factors. The exact timing and pace of the recovery is indeterminable as certain markets have reopened, some of which have since experienced a resurgence of COVID-19 cases, and in recent months new variants of COVID-19 have been identified, resulting in additional restrictions put in place by certain governments around the world.

Within the United States, our business has been designated as "essential," which has allowed us to continue to serve our customers; nonetheless, the COVID-19 pandemic has significantly disrupted our operations. The outbreak of COVID-19 has heightened the risk that a significant portion of our workforce will suffer illness or otherwise be unable to work. Furthermore, in light of enacted and any additional reductions in our workforce as a result of declines in our business caused by the COVID-19 pandemic, we cannot assure that we will be able to rehire our workforce once our business has begun to recover. Certain of our facilities have experienced temporary disruptions as a result of the COVID-19 pandemic, and we cannot predict whether our facilities will experience more significant disruptions in the future. Finally, our acquisition strategy, which is a key element of our overall business strategy, may be impacted by our efforts to maintain the Company’s cash liquidity position in response to the COVID-19 pandemic depending on the duration of the pandemic and its impact on our cash flows.

The COVID-19 pandemic has caused a significant adverse impact on our sales, net income and EBITDA as Defined and is expected to continue to do so for at least the remainder of fiscal 2021. This is under the assumption that the COVID-19 pandemic will continue to adversely impact customer demand for all market channels with commercial OEM and commercial aftermarket being the most adversely impacted due to the pandemic's impact on air travel worldwide. The defense market channel is also impacted to a significantly lesser extent due to certain supply chain disruptions as well as the "stay at home" orders, quarantines, etc. impacting the government procurement workforce. Also, government funding reprioritization such as shifting funds to efforts to combat the impact of the pandemic provides for uncertainty. The magnitude of the impact of COVID-19 remains unpredictable and we, therefore, continue to anticipate potential supply chain disruptions, employee absenteeism and short-term suspensions of manufacturing facilities, and additional health and safety costs related to the COVID-19 pandemic that could unfavorably impact our business. Longer term, because the duration of the pandemic is unclear, it is difficult to forecast a precise impact on the Company’s future results.

The Company took immediate and aggressive action to minimize the spread of COVID-19 in our workplaces and reduce costs. Since the early days of the pandemic, we have been following guidance from the World Health Organization and the U.S. Center for Disease Control to protect employees and prevent the spread of the virus within all of our facilities globally. Some of the actions implemented include: flexible work-from-home scheduling; alternate shift schedules; pre-shift temperature screenings, where allowed by law; social distancing; appropriate personal protective equipment; facility deep cleaning; and paid quarantine time for impacted employees. Material actions to reduce costs in response to the impact that the pandemic has had on operating results include: (1) reducing the Company's workforce to align operations with customer demand through a reduction in force or through a realignment of certain business units; (2) implementing unpaid furloughs and salary reductions; (3) delaying non-essential capital projects and (4) minimizing discretionary spending.

For the thirteen week period ended January 2, 2021, COVID-19 restructuring costs incurred were approximately $20 million, of which $13 million was recorded in cost of sales and $7 million was recorded in selling and administrative expenses on the condensed consolidated statements of income. These were costs related to the Company's actions to reduce its workforce to align with customer demand. Additionally, the Company incurred approximately $1 million in incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.). There were no COVID-19 restructuring costs or incremental costs incurred related to the pandemic for the thirteen week period ended December 28, 2019.

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As of January 2, 2021 and September 30, 2020 the restructuring accrual associated with the costs incurred in response to the COVID-19 pandemic was approximately $27 million and $13 million, respectively. This accrual is recorded as a component of accrued and other current liabilities on the condensed consolidated balance sheets. The Company expects to incur and pay additional restructuring costs during fiscal 2021 related to the COVID-19 pandemic though at a reduced level in comparison to fiscal 2020. The Company continues to analyze its cost structure and may implement additional cost reduction measures as necessary due to the ongoing business challenges resulting from the COVID-19 pandemic.

Critical Accounting Policies and Estimates

The preparation and fair presentation of the consolidated unaudited interim financial statements and accompanying notes included in this report are the responsibility of management. The financial statements and footnotes have been prepared in conformity with U.S. GAAP for interim financial statements and contain certain amounts that were based upon management’s best estimates, judgments and assumptions that were believed to be reasonable under the circumstances. On an ongoing basis, we evaluate the accounting policies and estimates used to prepare financial statements. Estimates are based on historical experience, judgments and assumptions believed to be reasonable under current facts and circumstances. Actual amounts and results could differ from these estimates used by management.

A comprehensive discussion of the Company’s critical accounting policies and management estimates and significant accounting policies followed in the preparation of the financial statements is included in Item 7 of our Annual Report on Form 10-K for the fiscal year ended September 30, 2020. Other than the adoption of ASU 2016-13 “Financial Instruments - Credit Losses: Measurement of Credit Losses on Financial Instruments,” there have been no significant changes in critical accounting policies, management estimates or accounting policies since the fiscal year ended September 30, 2020. Refer to Note 4, “Recent Accounting Pronouncements,” and Note 5, “Revenue Recognition,” in the notes to the condensed consolidated financial statements included herein for further disclosure of accounting standards recently adopted or required to be adopted in the future.

Acquisitions and Divestitures

Recent acquisitions and divestitures are described in Note 3, “Acquisitions and Divestitures,” in the notes to the condensed consolidated financial statements included herein.

Results of Operations

The following table sets forth, for the periods indicated, certain operating data of the Company, including presentation of the amounts as a percentage of net sales (amounts in millions):

	Thirteen Week Period Ended
	January 2, 2021		% of Sales		December 28, 2019		% of Sales
Net sales	$	1,108	100.0	%	$	1,465	100.0	%
Cost of sales	567		51.2	%	664		45.3	%
Selling and administrative expenses	197		17.8	%	201		13.7	%
Amortization of intangible assets	29		2.6	%	40		2.7	%
Income from operations	315		28.4	%	560		38.3	%
Interest expense, net	267		24.1	%	248		16.8	%
Refinancing costs	—		—	%	22		1.5	%
Other income	(5)		(0.5)	%	(3)		(0.2)	%
Income tax provision	3		0.3	%	59		4.0	%
Income from continuing operations	50		4.5	%	234		16.0	%
Less: Net income attributable to noncontrolling interests	—		—	%	(1)		(0.1)	%
Income from continuing operations attributable to TD Group	50		4.5	%	233		15.9	%
Income from discontinued operations, net of tax	—		—	%	71		4.8	%
Net income attributable to TD Group	$	50	4.5	%	$	304	20.8	%

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Changes in Results of Operations

Thirteen week period ended January 2, 2021 compared with the thirteen week period ended December 28, 2019

Total Company

•Net Sales. Net sales were $1,108 million for the thirteen week period ended January 2, 2021 compared to $1,465 million for the thirteen week period ended December 28, 2019. The decrease in net sales of $357 million for the thirteen week period ended January 2, 2021, compared to the thirteen week period ended December 28, 2019, is primarily related to a decreases in commercial aftermarket sales ($221 million, a decrease of 46.3%) and commercial OEM sales ($142 million, a decrease of 32.6%); partially offset by an increase in defense sales ($6 million, an increase of 1.1%). The decreases in the commercial aftermarket and commercial OEM markets are attributable to the adverse impact that the COVID-19 pandemic had on customer demand due to the pandemic's impact on air travel worldwide. The increase in defense sales are primarily driven by the OEM market.

•Cost of Sales and Gross Profit. Cost of sales decreased by $97 million, or 14.6%, to $567 million for the thirteen week period ended January 2, 2021 compared to $664 million for the thirteen week period ended December 28, 2019. Cost of sales and the related percentage of total sales for the thirteen week periods ended January 2, 2021 and December 28, 2019 were as follows (amounts in millions):

	Thirteen Week Periods Ended
	January 2, 2021			December 28, 2019			Change		% Change
Cost of sales - excluding costs below	$	545		$	657		$	(112)	(17.0)	%
% of total sales	49.2		%	44.8		%
Foreign currency losses	22			14			8		57.1	%
% of total sales	2.0		%	1.0		%
COVID-19 pandemic restructuring costs	13			—			13		100.0	%
% of total sales	1.2		%	—		%
Non-cash stock compensation expense	5			3			2		66.7	%
% of total sales	0.5		%	0.2		%
Acquisition integration costs	—			1			(1)		(100.0)	%
% of total sales	—		%	0.1		%
Loss contract amortization	(18)			(11)			(7)		(63.6)	%
% of total sales	(1.6)		%	(0.8)		%
Total cost of sales	$	567		$	664		$	(97)	(14.6)	%
% of total sales	51.2		%	45.3		%
Gross profit	$	541		$	801		$	(260)	(32.5)	%
Gross profit percentage	48.8		%	54.7		%

The decrease in the dollar amount of cost of sales during the thirteen week period ended January 2, 2021 was primarily due to lower sales volume from decreased customer demand due to the COVID-19 pandemic and the other factors summarized above, including those factors that partially offset the decrease in cost of sales.

Gross profit as a percentage of sales decreased by 5.9 percentage points to 48.8% for the thirteen week period ended January 2, 2021 from 54.7% for the thirteen week period ended December 28, 2019. The decrease in the gross profit percentage is primarily driven by COVID-19 pandemic restructuring costs, foreign currency losses primarily due to the depreciation of the United States dollar compared to the British pound and the Euro and sales mix, specifically, lower commercial aftermarket sales as a percentage of total net sales. Also, fixed overhead costs incurred were spread over a lower production volume during the thirteen week period ended January 2, 2021 resulting in an adverse impact to gross profit.

•Selling and Administrative Expenses. Selling and administrative expenses decreased by $4 million to $197 million, or 17.8% of sales, for the thirteen week period ended January 2, 2021 from $201 million, or 13.7% of sales, for the thirteen week period ended December 28, 2019. Selling and administrative expenses and the related percentage of total sales for the thirteen week periods ended January 2, 2021 and December 28, 2019 were as follows (amounts in millions):

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	Thirteen Week Periods Ended
	January 2, 2021			December 28, 2019			Change		% Change
Selling and administrative expenses - excluding costs below	$	139		$	177		$	(38)	(21.5)	%
% of total sales	12.5		%	12.1		%
Non-cash stock compensation expense	44			23			21		91.3	%
% of total sales	4.0		%	1.6		%
COVID-19 pandemic restructuring costs	7			—			7		100.0	%
% of total sales	0.6		%	—		%
Bad debt expense	5			—			5		100.0	%
% of total sales	0.5		%	—		%
Acquisition-related expenses	2			1			1		100.0	%
% of total sales	0.2		%	0.1		%
Total selling and administrative expenses	$	197		$	201		$	(4)	(2.0)	%
% of total sales	17.8		%	13.7		%

The decrease in selling and administrative expenses during the thirteen week period ended January 2, 2021 is primarily due to the realization of the cost mitigation measures enacted in the second half of fiscal 2020 in response to the COVID-19 pandemic, partially offset by the other factors summarized above. The material cost mitigation measures enacted to date are described in Note 1, "Description of the Business and Impact of COVID-19 Pandemic." The increase in non-cash stock compensation expense is attributable to the new stock option grants awarded in the first quarter of fiscal 2021 and the impact on the Black-Scholes fair value of the fiscal 2020 grants in connection with the change in vesting terms approved by the Compensation Committee of the Board of Directors in the first quarter of fiscal 2021. Bad debt expense is further described in Note 5, "Revenue Recognition."

•Amortization of Intangible Assets. Amortization of intangible assets was $29 million for the thirteen week period ended January 2, 2021 compared to $40 million in the thirteen week period ended December 28, 2019. The decrease in amortization expense of $11 million was due to amortization expense on sales order backlog recorded in fiscal 2020 in connection with the acquisition of Esterline. Sales order backlog related to the Esterline acquisition was fully amortized by the end of fiscal 2020.

•Interest Expense-net. Interest expense-net includes interest on borrowings outstanding, amortization of debt issuance costs, original issue discount and premium and revolving credit facility fees; slightly offset by interest income. Interest expense-net increased $19 million, or 7.7%, to $267 million for the thirteen week period ended January 2, 2021 from $248 million for the comparable thirteen week period last year. The net increase in interest expense-net was primarily due to an increase in the weighted average level of outstanding borrowings, which was approximately $19.9 billion for the thirteen week period ended January 2, 2021 and approximately $17.9 billion for the thirteen week period ended December 28, 2019. The increase in the weighted average level of borrowings was primarily due to the activity in fiscal 2020 consisting of the issuance of $1.1 billion in 2025 Secured Notes, $400 million in 6.25% 2026 New Notes and $200 million drawn on the revolving credit facility. The weighted average interest rate for cash interest payments on total borrowings outstanding for the thirteen week period ended January 2, 2021 was 5.1%.

•Refinancing Costs. There were no refinancing costs recorded for the thirteen week period ended January 2, 2021. Refinancing costs of $22 million were recorded for the thirteen week period ended December 28, 2019 and primarily related to the fees incurred on the redemption of the 2022 Notes.

•Other Income. Other income was $5 million for the thirteen week period ended January 2, 2021 compared to $3 million for the thirteen week period ended December 28, 2019. Other income is primarily related to non-service related components of net periodic benefit costs on the Company's defined benefit pension plans and, in the first quarter of fiscal 2021, receipt of payment of a Canadian governmental subsidy.

•Income Taxes. Income tax expense as a percentage of income before income taxes was approximately 5.5% for the thirteen week period ended January 2, 2021 compared to 20.1% for the thirteen week period ended December 28, 2019. The Company's lower effective tax rate for the thirteen week period ended January 2, 2021, which also was lower than the Federal statutory tax rate of 21%, was primarily due to the significant discrete impact of excess tax benefits associated with share-based payments.

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•Income from Discontinued Operations. There were no discontinued operations for the thirteen week period ended January 2, 2021. Discontinued operations for the thirteen week period ended December 28, 2019 include the results of the operations of Souriau-Sunbank. On December 20, 2019, TransDigm completed the divestiture of Souriau-Sunbank to Eaton for approximately $920 million. Souriau-Sunbank was acquired by TransDigm as part of its acquisition of Esterline in March 2019. The income from discontinued operations for the thirteen week period ended December 28, 2019 is $71 million, which includes $9 million for Souriau-Sunbank's operations and a gain on the sale of Souriau-Sunbank, net of tax, of $62 million.

•Net Income Attributable to TD Group. Net income attributable to TD Group decreased $254 million, or 84%, to $50 million for the thirteen week period ended January 2, 2021 compared to net income attributable to TD Group of $304 million for the thirteen week period ended December 28, 2019, primarily due to the adverse impact that the COVID-19 pandemic had on the Company's operations as well as the other factors referred to above.

•(Loss) Earnings per Share. Basic and diluted (loss) earnings per share was $(0.42) for the thirteen week period ended January 2, 2021 and $2.07 per share for the thirteen week period ended December 28, 2019. Basic and diluted (loss) earnings per share from continuing operations was $(0.42) for the thirteen week period ended January 2, 2021. Basic and diluted earnings per share from continuing operations and discontinued operations was $0.83 and $1.24, respectively, for the thirteen week period ended December 28, 2019.

Business Segments

•Segment Net Sales. Net sales by segment for the thirteen week periods ended January 2, 2021 and December 28, 2019 were as follows (amounts in millions):

	Thirteen Week Periods Ended
	January 2, 2021		% of Sales		December 28, 2019		% of Sales		Change		% Change
Power & Control	$	601	54.2	%	$	752	51.3	%	$	(151)	(20.1)	%
Airframe	464		41.9	%	674		46.0	%	(210)		(31.2)	%
Non-aviation	43		3.9	%	39		2.7	%	4		10.3	%
	$	1,108	100.0	%	$	1,465	100.0	%	$	(357)	(24.4)	%

Sales for the Power & Control segment decreased $151 million, a decrease of 20.1%, for the thirteen week period ended January 2, 2021 compared to the thirteen week period ended December 28, 2019. The sales decrease resulted primarily from decreases in commercial aftermarket sales ($88 million, a decrease of 40.0%), commercial OEM sales ($58 million, a decrease of 31.5%) and defense sales ($5 million, a decrease of 1.4%). The decreases in commercial aftermarket and commercial OEM sales are attributable to the COVID-19 pandemic.

Sales for the Airframe segment decreased $210 million, a decrease of 31.2%, for the thirteen week period ended January 2, 2021 compared to the thirteen week period ended December 28, 2019. The sales decrease resulted primarily from decreases in commercial aftermarket sales ($133 million, a decrease of 54.3%) and commercial OEM sales ($88 million, a decrease of 38.3%); partially offset by an increase in defense sales ($11 million, an increase of 5.5%). The decreases in commercial aftermarket and commercial OEM sales are attributable to the COVID-19 pandemic. The increase in defense sales are primarily driven by the OEM market.

Sales for the Non-aviation segment increased $4 million, or an increase of 10.3%, for the thirteen week period ended January 2, 2021 compared to the thirteen week period ended December 28, 2019. The sales increase resulted primarily from increases in other non-aerospace sales ($4 million, an increase of 11.7%).

•EBITDA As Defined. EBITDA As Defined by segment for the thirteen week periods ended January 2, 2021 and December 28, 2019 were as follows (amounts in millions):

	Thirteen Week Periods Ended
	January 2, 2021		% of  Segment Sales		December 28, 2019		% of  Segment Sales		Change		% Change
Power & Control	$	304	50.6	%	$	385	51.2	%	$	(81)	(21.0)	%
Airframe	177		38.1	%	305		45.3	%	(128)		(42.0)	%
Non-aviation	15		34.9	%	13		33.3	%	2		15.4	%
	$	496	44.8	%	$	703	48.0	%	$	(207)	(29.4)	%

EBITDA As Defined for the Power & Control segment decreased approximately $81 million, a decrease of 21.0%, resulting from lower sales volume in the commercial aftermarket and commercial OEM markets as a result of the COVID-19 pandemic.

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EBITDA as Defined for the Airframe segment decreased approximately $128 million, a decrease of 42.0%, resulting from lower sales volume in the commercial aftermarket and commercial OEM markets as a result of the COVID-19 pandemic.

EBITDA As Defined for the Non-aviation segment increased approximately $2 million, an increase of 15.4%, resulting from increases in other non-aerospace sales as a result of the COVID-19 pandemic.

Backlog

As of January 2, 2021, the Company estimated its sales order backlog at $3,195 million compared to $3,528 million as of December 28, 2019. The decrease in backlog is attributable to the adverse impact that the COVID-19 pandemic has had on customer demand, particularly our commercial customers, domestically and internationally. The uncertainty of the duration of the pandemic and its impact on the commercial aerospace industry is expected to continue to inhibit sales order backlog growth in the commercial OEM and commercial aftermarket channels throughout fiscal 2021.

The majority of the purchase orders outstanding as of January 2, 2021 are scheduled for delivery within the next twelve months. Purchase orders may be subject to cancellation or deferral by the customer prior to shipment. The level of unfilled purchase orders at any given date during the year will be materially affected by the timing of the Company’s receipt of purchase orders and the speed with which those orders are filled. Accordingly, the Company’s backlog as of January 2, 2021 may not necessarily represent the actual amount of shipments or sales for any future period.

Foreign Operations

Although we manufacture a significant portion of our products in the United States, we manufacture certain products in Europe, Asia, Canada, Mexico and other countries globally. We sell our products in the United States as well as in foreign countries. Although the majority of sales of our products are made to customers (including distributors) located in the United States, our products are ultimately sold to and used by customers, including airlines and other end users of aircraft, throughout the world.

Sales to foreign customers are subject to numerous additional risks, including the COVID-19 pandemic, foreign currency fluctuations, the impact of foreign government regulations, political uncertainties and differences in business practices. There can be no assurance that foreign governments will not adopt regulations or take other action that would have a direct or indirect adverse impact on the business or market opportunities of the Company within such governments’ countries. Furthermore, there can be no assurance that the political, cultural and economic climate outside the U.S. will be favorable to our operations and growth strategy.

Liquidity and Capital Resources

We have historically maintained a capital structure comprising a mix of equity and debt financing. We vary our leverage both to optimize our equity return and to pursue acquisitions. We expect to meet our current debt obligations as they come due through internally generated funds from current levels of operations and/or through refinancing in the debt markets prior to the maturity dates of our debt.

If the Company has excess cash, it generally prioritizes allocating the excess cash in the following manner: (1) capital spending at existing businesses, (2) acquisitions of businesses, (3) payment of a special dividend and/or repurchases of our common stock and (4) prepayment of indebtedness or repurchase of debt. Whether the Company undertakes common stock repurchases or other aforementioned activities will depend on prevailing market conditions, the Company's liquidity requirements, contractual restrictions and other factors. The amounts involved may be material. In addition, the Company may issue additional debt if prevailing market conditions are favorable to doing so.

The Company’s ability to make scheduled interest payments on, or to refinance, the Company’s indebtedness, or to fund non-acquisition related capital expenditures and research and development efforts, will depend on the Company’s ability to generate cash in the future. This is subject to general economic, financial, competitive, legislative, regulatory and other factors that are beyond its control, including the ongoing COVID-19 pandemic.

The COVID-19 pandemic has caused a significant adverse impact on our sales, net income and EBITDA as Defined during the thirteen week period ended January 2, 2021 and is expected to continue to do so for at least the remainder of fiscal 2021. This is under the assumption that the COVID-19 pandemic will continue to adversely impact customer demand for all market channels with commercial OEM and commercial aftermarket being the most adversely impacted due to the pandemic's impact on air travel worldwide. The defense market channel is also impacted to a lesser extent due to certain supply chain disruptions as well as the "stay at home" orders, quarantines, etc. impacting the government procurement workforce which has slowed production and/or orders. Also, government funding reprioritization such as shifting funds to efforts to combat the impact of the pandemic provides for uncertainty.

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Although commercial air travel demand has shown slight signs of recovery in recent months, the recovery is expected to continue to be slow and uneven depending on factors such as trends in the number of COVID-19 infections (e.g., impact of new variants of COVID-19 surfacing), the rollout and effectiveness of the vaccine, and the eventual easing of quarantines and travel restrictions, among other factors. The exact timing and pace of the recovery is indeterminable as certain markets have reopened, some of which have since experienced a resurgence of COVID-19 cases, and in recent months new variants of COVID-19 have been identified, resulting in additional restrictions put in place by certain governments around the world. The magnitude of the impact of COVID-19 remains unpredictable and we, therefore, continue to anticipate potential supply chain disruptions, employee absenteeism and short-term suspensions of manufacturing facilities, and additional health and safety costs related to the COVID-19 pandemic that could unfavorably impact our business. Longer term, because the duration of the pandemic is unclear, it is difficult to forecast a precise impact on the Company’s future results.

The Company is actively managing the business to maintain cash flow, including the cost mitigation efforts described in Note 1, "Description of the Business and Impact of COVID-19 Pandemic," in the notes to the condensed consolidated financial statements included herein in response to the COVID-19 pandemic and is continuing to focus on the application of its three core value-driven operating strategies (obtaining profitable new business, continually improving its cost structure and providing highly engineered value-added products to customers).

In March 2020, the Company drew $200 million on its revolving credit facility to increase the Company's liquidity as a precautionary response to macroeconomic conditions caused by the COVID-19 pandemic. (The $200 million drawn was subsequently repaid and redrawn within the first quarter of fiscal 2021). Also, in further action to increase the Company's liquidity, the Company executed two notes offerings in April 2020 in which the proceeds received were for general Corporate purposes. On April 8, 2020, the Company entered into a purchase agreement in connection with a private offering of $1,100 million in aggregate principal amount of 8.00% Senior Secured Notes due 2025 at an issue price of 100% of the principal amount. On April 17, 2020, the Company entered into a purchase agreement in connection with a private offering of $400 million in aggregate principal amount of 6.25% Senior Secured Notes due 2026 at an issue price of 101% of the principal amount.

As of January 2, 2021, the Company has significant cash liquidity as illustrated in the table presented below (in millions):

	As of January 2, 2021
Cash and cash equivalents	$	4,907
Availability on revolving credit facility	520
Cash liquidity (1)	$	5,427

(1)Excludes approximately $959 million in existing cash on hand used to acquire CAC. Refer to Note 3, "Acquisitions and Divestitures," in the notes to the condensed consolidated financial statements for further disclosure on the CAC acquisition.

Due to favorable market conditions in the high yield bond market, on January 14, 2021, the Company entered into a purchase agreement in connection with a private offering of $1,200 million of 4.625% Senior Subordinated Notes due 2029 (herein, the “2029 Notes”) at an issue price of 100% of the principal amount. The 2029 Notes were issued pursuant to an indenture, dated January 20, 2021. The Company expects to use the net proceeds from the offering of the 2029 Notes to redeem all of its outstanding 6.50% Senior Subordinated Notes due 2024, effectively resulting in a reduced interest rate and an extended maturity date of $1,200 million in senior subordinated notes.

We believe our significant cash liquidity, even after consideration of the cash on hand used to acquire CAC, will allow us to meet our anticipated funding requirements. We expect to meet our short-term cash liquidity requirements (including interest obligations and capital expenditures) through net cash from operating activities, cash on hand and, if needed, additional draws on the revolving credit facility. Long-term cash liquidity requirements consist primarily of obligations under our long-term debt agreements. There will be no maturity on any tranche of term loans or notes until August 2024.

In connection with the continued application of our three core value-driven operating strategies (obtaining profitable new business, continually improving our cost structure and providing highly engineered value-added products to customers), we expect our efforts will continue to generate strong margins and provide sufficient cash provided by operating activities to meet our interest obligations and liquidity needs. We believe our cash provided by operating activities and available borrowing capacity will enable us to make strategic business acquisitions, pay dividends to our shareholders and make opportunistic investments in our own stock, subject to any restrictions in our existing credit agreement and market conditions in consideration of the COVID-19 pandemic.

In the future, the Company may increase its borrowings in connection with acquisitions, if cash flow from operating activities becomes insufficient to fund current operations or for other short-term cash needs or for stock repurchases or dividends. Our future leverage will also be impacted by the then current conditions of the credit markets.

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Operating Activities. The Company generated $274 million of net cash from operating activities during the thirteen week period ended January 2, 2021 compared to $433 million during the thirteen week period ended December 28, 2019.

The change in accounts receivable during the thirteen week period ended January 2, 2021 was a source of cash of $86 million compared to a source of cash of $51 million during the thirteen week period ended December 28, 2019. The increase in the source of cash of $35 million is primarily attributable to timing of cash collections on prior quarter sales. The Company also continues to actively manage its accounts receivable, the related agings and collection efforts in response to the COVID-19 pandemic.

The change in inventories during the thirteen week period ended January 2, 2021 was a source of cash of $1 million compared to a use of cash of $69 million during the thirteen week period ended December 28, 2019. The increase in the source of cash is primarily driven by lower inventory levels and decreased purchasing due to reduced demand as a result of the COVID-19 pandemic.

The change in accounts payable during the thirteen week period ended January 2, 2021 was a use of cash of $20 million compared to a use of cash of $14 million during the thirteen week period ended December 28, 2019. The increase in the use of cash is primarily driven by a corresponding decline in accounts payable as inventory and other purchases have slowed as a result of the COVID-19 pandemic.

Investing Activities. Net cash used by investing activities was $29 million during the thirteen week period ended January 2, 2021, consisting primarily of capital expenditures of $31 million. This was partially offset by proceeds of $8 million from the completion of the divestiture of Avista, Inc.

Net cash provided by investing activities was $877 million during the thirteen week period ended December 28, 2019, consisting of proceeds of $904 million from the completion of the divestiture of Souriau-Sunbank. This was partially offset by capital expenditures of $27 million.

Financing Activities. Net cash used by financing activities during the thirteen week period ended January 2, 2021 was $60 million. The use of cash was primarily attributable to dividend equivalent payments of $73 million and repayment on term loans of $19 million. This was partially offset by proceeds from stock option exercises of $32 million.

Net cash provided by financing activities during the thirteen week period ended December 28, 2019 was $1,414 million. The source of cash was primarily attributable to $2,625 million in net proceeds from the completion of the 2027 5.50% Notes offering and $20 million in proceeds from stock option exercises. This was partially offset by the redemption of the 2022 Notes outstanding for $1,168 million and the payment of $64 million in dividend equivalent payments.

Contractual Obligations

We have future obligations under various contracts relating to debt and interest payments, finance and operating leases, pension and post-retirement benefit plans and purchase obligations. There were no material changes during the thirteen week period ended January 2, 2021 to these obligations as reported in our Annual Report on Form 10-K for the fiscal year ended September 30, 2020.

Description of Senior Secured Term Loans and Indentures

Senior Secured Term Loans Facility

TransDigm has $7,429 million in fully drawn term loans (the “Term Loans Facility”) and a $760 million revolving credit facility. The Term Loans Facility consists of three tranches of term loans as follows (aggregate principal amount disclosed is as of January 2, 2021):

Term Loans Facility	Aggregate Principal	Maturity Date	Interest Rate
Tranche E	$2,193 million	May 30, 2025	LIBOR + 2.25%
Tranche F	$3,480 million	December 9, 2025	LIBOR + 2.25%
Tranche G	$1,756 million	August 22, 2024	LIBOR + 2.25%

The Term Loans Facility requires quarterly aggregate principal payments of $18.8 million. The revolving commitments consist of two tranches which include up to $151.5 million of multicurrency revolving commitments. At January 2, 2021, the Company had $39.8 million in letters of credit outstanding, $200.0 million drawn and outstanding and $520.2 million in borrowings available under the revolving commitments.

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The interest rates per annum applicable to the loans under the Credit Agreement are, at TransDigm’s option, equal to either an alternate base rate or an adjusted LIBOR for one, two, three or six-month (or to the extent agreed to by each relevant lender, nine or twelve-month) interest periods chosen by TransDigm, in each case plus an applicable margin percentage. The adjusted LIBOR related to tranche E, tranche F and tranche G term loans are not subject to a floor. For the thirteen week period ended January 2, 2021, the applicable interest rate was approximately 2.40% on the existing term loans. Interest rate swaps and caps used to hedge and offset, respectively, the variable interest rates on the credit facility are described in Note 12, “Derivatives and Hedging Activities,” in the notes to the condensed consolidated financial statements included herein.

Recent Amendments to the Credit Agreement

On February 6, 2020, the Company entered into Amendment No. 7 and Refinancing Facility Agreement (herein, "Amendment No. 7"). Under the terms of Amendment No. 7, the Company, among other things, (i) incurred new tranche E term loans in an aggregate principal amount equal to approximately $2,216 million, new tranche F term loans in an aggregate principal amount equal to approximately $3,515 million and new tranche G term loans, (collectively, the "New Term Loans") in an aggregate principal amount equal to approximately $1,774 million, (ii) repaid in full all of the existing tranche E term loans, tranche F term loans and tranche G term loans outstanding under the Credit Agreement immediately prior to Amendment No. 7 and (iii) extended the maturity date of the tranche F term loans to December 9, 2025, (iv) modified the definition of consolidated EBITDA in the Credit Agreement to add back certain cost savings and non-recurring cost and expenses and (v) modified certain negative covenants to provide additional flexibility to enable TransDigm to incur additional debt and make additional investments and asset sales.

The New Term Loans were fully drawn on February 6, 2020. The LIBOR per annum applicable to the New Term Loans is 2.25%, a decrease from the previous rate of 2.50%. The other terms and conditions that apply to the New Term Loans are substantially the same as the terms and conditions that applied to the term loans immediately prior to Amendment No. 7.

Indentures

The following table represents the notes outstanding as of January 2, 2021:

Description	Aggregate Principal	Maturity Date	Interest Rate
2024 Notes (1)	$1,200 million	July 15, 2024	6.50%
2025 Notes	$750 million	May 15, 2025	6.50%
2025 Secured Notes	$1,100 million	December 15, 2025	8.00%
2026 Secured Notes	$4,400 million	March 15, 2026	6.25%
6.875% 2026 Notes	$500 million	May 15, 2026	6.875%
6.375% 2026 Notes	$950 million	June 15, 2026	6.375%
7.50% 2027 Notes	$550 million	March 15, 2027	7.50%
5.50% 2027 Notes	$2,650 million	November 15, 2027	5.50%

(1)On January 14, 2021, the Company entered into a purchase agreement in connection with a private offering of $1,200 million of 4.625% Senior Subordinated Notes due 2029 (herein, the “2029 Notes”) at an issue price of 100% of the principal amount. The Company expects to use the net proceeds from the offering of the 2029 Notes to redeem all of its outstanding 6.50% Senior Subordinated Notes due 2024. Refer to Note 9, "Debt," in the notes to the condensed consolidated financial statements included herein for additional details.

The 2024 Notes, the 6.375% 2026 Notes, the 7.50% 2027 Notes and the 5.50% 2027 Notes (collectively, the “TransDigm Inc. Notes”) were issued at a price of 100% of the principal amount. The initial $450 million offering of the 2025 Notes (also considered to be part of the “TransDigm Inc. Notes”) were issued at a price of 100% of the principal amount and the subsequent $300 million offering of 2025 Notes in the second quarter of fiscal 2017 were issued at a price of 101.5% of the principal amount, resulting in gross proceeds of $304.5 million. The 6.875% 2026 Notes (the "TransDigm UK Notes" and together with the TransDigm Inc. Notes, the "Notes," are further described below) offered in May 2018 were issued at a price of 99.24% of the principal amount, resulting in gross proceeds of $496.2 million. The 2025 Secured Notes (the "Secured Notes") were issued at a price 100% of the principal amount. The initial $3,800 million offering of the 2026 Secured Notes (the "Secured Notes") were issued at a price of 100% of their principal amount and the subsequent $200 million and $400 million offerings of the 2026 Secured Notes in the second quarter of fiscal 2019 and the third quarter of fiscal 2020, respectively, were issued at a price of 101% of their principal amount, resulting in gross proceeds of $4,410.5 million.

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The Notes do not require principal payments prior to their maturity. Interest under the Notes is payable semi-annually. The Notes represent our unsecured obligations ranking subordinate to our senior debt, as defined in the applicable indentures. The Notes contain many of the restrictive covenants included in the Credit Agreement. TransDigm is in compliance with all of the covenants contained in the Notes.

The Notes are subordinated to all of our existing and future senior debt, rank equally with all of our existing and future senior subordinated debt and rank senior to all of our future debt that is expressly subordinated to the Notes. The TransDigm, Inc. Notes are fully and unconditionally guaranteed on a senior subordinated unsecured basis by TD Group and TransDigm, Inc.'s Domestic Restricted Subsidiaries. The TransDigm UK Notes are guaranteed on a senior subordinated basis by TransDigm, Inc., TD Group and TransDigm, Inc.'s Domestic Restricted Subsidiaries. The guarantees of the Notes are subordinated to all of the guarantors’ existing and future senior debt, rank equally with all of their existing and future senior subordinated debt and rank senior to all of their future debt that is expressly subordinated to the guarantees of the Notes. The Notes are structurally subordinated to all of the liabilities of TD Group’s non-guarantor subsidiaries.

The Secured Notes are senior secured obligations of TransDigm and rank equally in right of payment with all of TransDigm’s existing and future senior secured debt, including indebtedness under TransDigm’s existing senior secured credit facilities, and are senior in right of payment to all of TransDigm’s existing and future senior subordinated debt, including the Notes, TransDigm’s other outstanding senior subordinated notes and TransDigm’s guarantees in respect of TransDigm UK’s outstanding senior subordinated notes. The Secured Notes are guaranteed on a senior secured basis by TD Group, TransDigm UK and TransDigm’s wholly-owned U.S. subsidiaries named in the Secured Notes Indenture. The guarantees of the Secured Notes rank equally in right of payment with all of the guarantors’ existing and future senior secured debt and are senior in right of payment to all of their existing and future senior subordinated debt. The Secured Notes are structurally subordinated to all of the liabilities of TransDigm’s non-guarantor subsidiaries. The Secured Notes contain many of the restrictive covenants included in the Credit Agreement. TransDigm is in compliance with all of the covenants contained in the Secured Notes.

Separate financial statements of TransDigm, Inc. are not presented because the Secured Notes are fully and unconditionally guaranteed on a senior secured basis by TD Group, TransDigm UK and all of TransDigm, Inc.'s Domestic Restricted Subsidiaries. TD Group has no significant operations or assets separate from its investment in TransDigm, Inc.

Separate financial statements of TransDigm, Inc. are not presented because the TransDigm, Inc. Notes are fully and unconditionally guaranteed on a senior subordinated basis by TD Group, TransDigm UK and all of TransDigm, Inc.'s Domestic Restricted Subsidiaries. TD Group has no significant operations or assets separate from its investment in TransDigm, Inc.

Separate financial statements of TransDigm UK are not presented because TransDigm UK's 6.875% 2026 Notes, issued in May 2018, are fully and unconditionally guaranteed on a senior subordinated basis by TD Group, TransDigm, Inc. and all of TransDigm, Inc.'s Domestic Restricted Subsidiaries. TD Group has no significant operations or assets separate from its investment in TransDigm, Inc.

The financial information presented is that of TD Group and the Guarantors, which includes TransDigm, Inc. and TransDigm UK, on a combined basis and the financial information of non-issuer and non-guarantor subsidiaries has been excluded. Intercompany balances and transactions between TD Group and Guarantors have been eliminated, and amounts due from, amounts due to, and transactions with non-issuer and non-guarantor subsidiaries have been presented separately.

(in millions)	January 2, 2021		September 30, 2020
Current assets	$	5,480	$	5,398
Noncurrent assets	9,133		9,157
Current liabilities	904		972
Noncurrent liabilities	20,389		20,423
Amounts due to subsidiaries that are non-issuers and non-guarantors - net	10		103

(in millions)	Thirteen Week Period Ended January 2, 2021
Net sales	$	840
Sales to subsidiaries that are non-issuers and non-guarantors	4
Cost of sales	385
Expense from subsidiaries that are non-issuers and non-guarantors - net	8
Income from continuing operations	50
Net income attributable to TD Group	50

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Certain Restrictive Covenants in Our Debt Documents

The Credit Agreement and the Indentures governing the Notes contain restrictive covenants that, among other things, limit the incurrence of additional indebtedness, the payment of special dividends, transactions with affiliates, asset sales, acquisitions, mergers and consolidations, liens and encumbrances, and prepayments of certain other indebtedness.

The restrictive covenants included in the Credit Agreement are subject to amendments executed periodically. The most recent amendment that impacted the restrictive covenants contained in the Credit Agreement is Amendment No. 7.

Under the terms of the Credit Agreement, TransDigm is entitled, on one or more occasions, to request additional term loans or additional revolving commitments to the extent that the existing or new lenders agree to provide such incremental term loans or additional revolving commitments provided that, among other conditions, our consolidated net leverage ratio would be no greater than 7.25x and the consolidated secured net debt ratio would be no greater than 5.00x, in each case, after giving effect to such incremental term loans or additional revolving commitments.

If any such default occurs, the lenders under the Credit Agreement and the holders of the Notes may elect to declare all outstanding borrowings, together with accrued interest and other amounts payable thereunder, to be immediately due and payable. The lenders under the Credit Agreement also have the right in these circumstances to terminate any commitments they have to provide further borrowings. In addition, following an event of default under the Credit Agreement, the lenders thereunder will have the right to proceed against the collateral granted to them to secure the debt, which includes our available cash, and they will also have the right to prevent us from making debt service payments on the Notes.

With the exception of the revolving credit facility, the Company has no maintenance covenants in its existing term loan and indenture agreements. Under the Credit Agreement, if the usage of the revolving credit facility exceeds 35%, or $266 million, of the total revolving commitments, the Company is required to maintain a maximum consolidated net leverage ratio of net debt to trailing four-quarter EBITDA As Defined of 7.25x as of the last day of the fiscal quarter.

As of January 2, 2021, the Company was in compliance with all of its debt covenants and expects to remain in compliance with its debt covenants in subsequent periods.

Trade Receivables Securitization Facility

During fiscal 2014, the Company established a trade receivable securitization facility (the “Securitization Facility”). The Securitization Facility effectively increases the Company’s borrowing capacity depending on the amount of the domestic operations’ trade accounts receivable. The Securitization Facility includes the right for the Company to exercise annual one year extensions as long as there have been no termination events as defined by the agreement. The Company uses the proceeds from the Securitization Facility as an alternative to other forms of debt, effectively reducing borrowing costs.

On July 22, 2020, the Company amended the Securitization Facility to extend the maturity date to July 27, 2021. As of January 2, 2021, the Company has borrowed $350 million under the Securitization Facility, which bears interest at a rate of 1.35%, plus 0.50% or LIBOR, whichever is greater. At January 2, 2021, the applicable interest rate was 1.85%. The Securitization Facility is collateralized by substantially all of the Company’s domestic operations’ trade accounts receivable.

Dividend and Dividend Equivalent Payments

There were no special cash dividends declared or paid during the fiscal quarter ended January 2, 2021. During fiscal 2020 (prior to the pandemic), the Company paid special cash dividends of $32.50 (in January 2020) on each outstanding share of common stock and cash dividend equivalent payments on vested options granted under its stock incentive plans.

We do not anticipate declaring regular quarterly or annual cash dividends on our common stock in the near future. Any declaration of special cash dividends on our common stock in the future will be at the discretion of our Board of Directors and will depend upon our results of operations, earnings, capital requirements, financial condition, future prospects, contractual restrictions under the senior secured credit facility and Indentures, the availability of surplus under Delaware law and other factors deemed relevant by our Board of Directors. TD Group is a holding company and conducts all of its operations through direct and indirect subsidiaries. Unless TD Group receives dividends, distributions, advances, transfers of funds or other payments from our subsidiaries, TD Group will be unable to pay any dividends on our common stock in the future. The ability of any subsidiaries to take any of the foregoing actions is limited by the terms of our senior secured credit facility and Indentures and may be limited by future debt or other agreements that we may enter into.

Stock Repurchase Program

On November 8, 2017, our Board of Directors, authorized a stock repurchase program permitting repurchases of our outstanding shares not to exceed $650 million in the aggregate, subject to any restrictions specified in the Credit Agreement and/or Indentures governing the existing Notes.

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No repurchases were made under the program during the fiscal quarter ended January 2, 2021. As of January 2, 2021, the remaining amount of repurchases allowable under the $650 million program was $631.1 million subject to any restrictions specified in the Credit Agreement and/or Indentures governing the existing Notes.

Off-Balance Sheet Arrangements

The Company utilizes letters of credit to back certain payment and performance obligations. Letters of credit are subject to limits based on amounts outstanding under the Company’s revolving credit facility. As of January 2, 2021, the Company had $39.8 million in letters of credit outstanding.

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Non-GAAP Financial Measures

We present below certain financial information based on our EBITDA and EBITDA As Defined. References to “EBITDA” mean earnings before interest, taxes, depreciation and amortization, and references to “EBITDA As Defined” mean EBITDA plus, as applicable for each relevant period, certain adjustments as set forth in the reconciliations of income from continuing operations to EBITDA and EBITDA As Defined and the reconciliations of net cash provided by operating activities to EBITDA and EBITDA As Defined presented below.

Neither EBITDA nor EBITDA As Defined is a measurement of financial performance under U.S. GAAP. We present EBITDA and EBITDA As Defined because we believe they are useful indicators for evaluating operating performance and liquidity.

Our management believes that EBITDA and EBITDA As Defined are useful as indicators of liquidity because securities analysts, investors, rating agencies and others use EBITDA to evaluate a company’s ability to incur and service debt. In addition, EBITDA As Defined is useful to investors because the revolving credit facility under our senior secured credit facility requires compliance under certain circumstances, on a pro forma basis, with a financial covenant that measures the ratio of the amount of our secured indebtedness to the amount of our Consolidated EBITDA defined in the same manner as we define EBITDA As Defined herein.

In addition to the above, our management uses EBITDA As Defined to review and assess the performance of the management team in connection with employee incentive programs and to prepare its annual budget and financial projections. Moreover, our management uses EBITDA As Defined to evaluate acquisitions.

Although we use EBITDA and EBITDA As Defined as measures to assess the performance of our business and for the other purposes set forth above, the use of these non-GAAP financial measures as analytical tools has limitations, and you should not consider any of them in isolation, or as a substitute for analysis of our results of operations as reported in accordance with U.S. GAAP. Some of these limitations are:

•neither EBITDA nor EBITDA As Defined reflects the significant interest expense, or the cash requirements, necessary to service interest payments on our indebtedness;

•although depreciation and amortization are non-cash charges, the assets being depreciated and amortized will often have to be replaced in the future, and neither EBITDA nor EBITDA As Defined reflects any cash requirements for such replacements;

•the omission of the substantial amortization expense associated with our intangible assets further limits the usefulness of EBITDA and EBITDA As Defined;

•neither EBITDA nor EBITDA As Defined includes the payment of taxes, which is a necessary element of our operations; and

•EBITDA As Defined excludes the cash expense we have incurred to integrate acquired businesses into our operations, which is a necessary element of certain of our acquisitions.

Because of these limitations, EBITDA and EBITDA As Defined should not be considered as measures of discretionary cash available to us to invest in the growth of our business. Management compensates for these limitations by not viewing EBITDA or EBITDA As Defined in isolation and specifically by using other U.S. GAAP measures, such as net income, net sales and operating profit, to measure our operating performance. Neither EBITDA nor EBITDA As Defined is a measurement of financial performance under U.S. GAAP, and neither should be considered as an alternative to net income or cash flow from operations determined in accordance with U.S. GAAP. Our calculation of EBITDA and EBITDA As Defined may not be comparable to the calculation of similarly titled measures reported by other companies.

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The following table sets forth a reconciliation of income from continuing operations to EBITDA and EBITDA As Defined (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Income from continuing operations	$	50	$	234
Adjustments:
Depreciation and amortization expense	58		69
Interest expense, net	267		248
Income tax provision	3		59
EBITDA	378		610
Adjustments:
Acquisition integration costs (1)	2		6
Acquisition transaction-related expenses (2)	2		1
Stock compensation expense (3)	49		26
Refinancing costs (4)	—		22
COVID-19 pandemic restructuring costs (5)	21		—
Other, net (6)	22		16
EBITDA As Defined	$	474	$	681

(1)Represents costs incurred to integrate acquired businesses and product lines into TD Group’s operations, facility relocation costs and other acquisition-related costs.

(2)Represents transaction-related costs comprising deal fees, legal, financial and tax due diligence expenses and valuation costs that are required to be expensed as incurred.

(3)Represents the compensation expense recognized by TD Group under our stock incentive plans.

(4)Represents costs expensed related to debt financing activities, including new issuances, extinguishments, refinancings and amendments to existing agreements.

(5)Represents restructuring costs related to the Company's cost reduction measures in response to the COVID-19 pandemic ($20 million). These are costs related to the Company's actions to reduce its workforce to align with customer demand. This also includes $1 million of incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.).

(6)Primarily represents foreign currency transaction gain or loss, payroll withholding taxes related to special dividend and dividend equivalent payments and stock option exercises, non-service related pension costs, deferred compensation, and gain or loss on sale of fixed assets.

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The following table sets forth a reconciliation of net cash provided by operating activities to EBITDA and EBITDA As Defined (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Net cash provided by operating activities	$	274	$	433
Adjustments:
Changes in assets and liabilities, net of effects from acquisitions of businesses	(103)		(102)
Interest expense, net (1)	258		240
Income tax (benefit) provision - current	(2)		87
Stock compensation expense (2)	(49)		(26)
Refinancing costs (3)	—		(22)
EBITDA	378		610
Adjustments:
Acquisition integration costs (4)	2		6
Acquisition transaction-related expenses (5)	2		1
Stock compensation expense (2)	49		26
Refinancing costs (3)	—		22
COVID-19 pandemic restructuring costs (6)	21		—
Other, net (7)	22		16
EBITDA As Defined	$	474	$	681

(1)Represents interest expense excluding the amortization of debt issuance costs and premium and discount on debt.

(2)Represents the compensation expense recognized by TD Group under our stock incentive plans.

(3)Represents costs expensed related to debt financing activities, including new issuances, extinguishments, refinancings and amendments to existing agreements.

(4)Represents costs incurred to integrate acquired businesses and product lines into TD Group’s operations, facility relocation costs and other acquisition-related costs.

(5)Represents transaction-related costs comprising deal fees; legal, financial and tax due diligence expenses, and valuation costs that are required to be expensed as incurred.

(6)Represents restructuring costs related to the Company's cost reduction measures in response to the COVID-19 pandemic ($20 million). These are costs related to the Company's actions to reduce its workforce to align with customer demand. This also includes $1 million of incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.).

(7)Primarily represents foreign currency transaction gain or loss, payroll withholding taxes related to special dividend and dividend equivalent payments and stock option exercises, non-service related pension costs, deferred compensation, and gain or loss on sale of fixed assets.

37

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

The information called for by this item is provided under the caption 'Description of Senior Secured Credit Facilities and Indentures' under Item 2 - "Management's Discussion and Analysis of Financial Condition and Results of Operations." Market risks are described more fully within “Quantitative and Qualitative Disclosures About Market Risk” in Part II, Item 7A of our most recent Form 10-K (for the fiscal year ended September 30, 2020). These market risks have not materially changed for the first quarter of fiscal 2021.

ITEM 4. CONTROLS AND PROCEDURES

As of January 2, 2021, TD Group carried out an evaluation, under the supervision and with the participation of TD Group’s management, including its President, Chief Executive Officer and Director (Principal Executive Officer) and Chief Financial Officer (Principal Financial Officer), of the effectiveness of the design and operation of TD Group’s disclosure controls and procedures. Based upon that evaluation, the President, Chief Executive Officer and Director and Chief Financial Officer concluded that TD Group’s disclosure controls and procedures are effective to ensure that information required to be disclosed by TD Group in the reports it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified by the Securities and Exchange Commission’s rules and forms, and that such information is accumulated and communicated to TD Group’s management, including its President, Chief Executive Officer and Director and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, TD Group’s management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable assurance of achieving the desired control objectives, and management necessarily was required to apply its judgment in designing and evaluating the controls and procedures.

In response to the COVID-19 pandemic, a number of employees began working remotely during the second half of fiscal 2020, which has continued through the first quarter of fiscal 2021. We are continually monitoring and assessing the changing business environment resulting from COVID-19 on our internal controls to minimize the impact on their design and operating effectiveness. Management has taken measures to ensure that our disclosure controls and procedures and internal controls over financial reporting remained effective and were not materially affected during this period.

Changes in Internal Control over Financial Reporting

There have been no changes in the Company’s internal control over financial reporting that occurred during the fiscal quarter ended January 2, 2021, that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

38

PART II: OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

None.

ITEM 1A. RISK FACTORS

In addition to the other information set forth in this report, you should carefully consider the risk factors disclosed in Item 1A of our Annual Report on Form 10-K for the fiscal year ended September 30, 2020, filed on November 12, 2020. There have been no material changes to the risk factors described in the Form 10-K.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS: PURCHASES OF EQUITY SECURITIES BY THE ISSUER

On November 8, 2017, our Board of Directors, authorized a stock repurchase program permitting repurchases of our outstanding shares not to exceed $650 million in the aggregate, subject to any restrictions specified in the Credit Agreement and/or Indentures governing the existing Notes.

No repurchases were made under the program during the fiscal quarter ended January 2, 2021. As of January 2, 2021, the remaining amount of repurchases allowable under the $650 million program was $631.1 million subject to any restrictions specified in the Credit Agreement and/or Indentures governing the existing Notes.

39

ITEM 6. EXHIBITS

Exhibit No.	Description
22	Listing of Subsidiary Guarantors
31.1	Certification by Principal Executive Officer of TransDigm Group Incorporated pursuant to Rule 13a-14(a) or 15d- 14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
31.2	Certification by Principal Financial Officer of TransDigm Group Incorporated pursuant to Rule 13a-14(a) or 15d- 14(a) of the Securities Exchange Act of 1934, as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002
32.1	Certification by Principal Executive Officer of TransDigm Group Incorporated pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
32.2	Certification by Principal Financial Officer of TransDigm Group Incorporated pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS	Inline XBRL Instance Document: The XBRL Instance Document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document
101.SCH	Inline XBRL Taxonomy Extension Schema
101.CAL	Inline XBRL Taxonomy Extension Calculation Linkbase
101.DEF	Inline XBRL Taxonomy Extension Definition Linkbase
101.LAB	Inline XBRL Taxonomy Extension Label Linkbase
101.PRE	Inline XBRL Taxonomy Extension Presentation Linkbase
104	Cover Page Interactive Data File: the cover page XBRL tags are embedded within the Inline XBRL document and are contained within Exhibit 101

40

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

TRANSDIGM GROUP INCORPORATED

SIGNATURE	TITLE	DATE
/s/ Kevin Stein	President, Chief Executive Officer and Director (Principal Executive Officer)	February 9, 2021
Kevin Stein
/s/ Michael Lisman	Chief Financial Officer (Principal Financial Officer)	February 9, 2021
Michael Lisman

41

EX-22

Exhibit 22

LISTING OF SUBSIDIARY GUARANTORS

TransDigm Group Incorporated ("the Company" or "TD Group") has unconditionally guaranteed, on a joint and several basis, each of the following registered and soon to be registered debt securities with each of the subsidiaries listed below under "Subsidiary Guarantors."

	Registered and Soon to be Registered Debt Securities
	6.50% senior subordinated notes due 2024 (2024 Notes)
	6.50% senior subordinated notes due 2025 (2025 Notes)
	8.00% senior secured notes due 2025 (2025 Secured Notes)
	6.375% senior subordinated notes due 2026 (6.375% 2026 Notes)
	6.875% senior subordinated notes due 2026 (6.875% 2026 Notes)
	6.25% senior secured notes due 2026 (2026 Secured Notes)
	7.50% senior subordinated notes due 2027 (7.50% 2027 Notes)
	5.50% senior subordinated notes due 2027 (5.50% 2027 Notes)
*	4.625% senior subordinated notes due 2029 (4.624% 2029 Notes)
	*On January 20, 2021, TransDigm Inc., a wholly-owned subsidiary of TD Group, issued the 2029 Notes. The 2029 Notes will be registered with the Securities and Exchange Commission within 210 days of the closing of the offer as specified in the Registration Rights Agreement.

Subsidiary Guarantors	Jurisdiction of Incorporation or Organization
17111 Waterview Pkwy LLC	Delaware
Acme Aerospace, Inc.	Delaware
Adams Rite Aerospace, Inc.	California
AeroControlex Group, Inc.	Delaware
Aerosonic LLC	Delaware
Airborne Acquisition, Inc.	Delaware
Airborne Global, Inc.	Delaware
Airborne Holdings, Inc.	Delaware
Airborne Systems NA, Inc.	Delaware
Airborne Systems North America Inc.	Delaware
Airborne Systems North America of CA Inc.	Delaware
Airborne Systems North America of NJ Inc.	New Jersey
AmSafe Global Holdings, Inc.	Delaware
AmSafe, Inc.	Delaware
Angus Electronics Co.	Delaware
Arkwin Industries, Inc.	New York
Armtec Countermeasures Co.	Delaware
Armtec Countermeasures TNO Co.	Delaware
Armtec Defense Products Co.	Delaware
Auxitrol Weston USA, Inc.	Delaware
Aviation Technologies, Inc.	Delaware
Avionic Instruments LLC	Delaware
Avionics Specialties, Inc.	Virginia
AvtechTyee, Inc.	Washington
Beta Transformer Technology Corporation	New York

	Subsidiary Guarantors	Jurisdiction of Incorporation or Organization
	Beta Transformer Technology LLC	Delaware
	Breeze-Eastern LLC	Delaware
	Bridport Erie Aviation, Inc.	Delaware
	Bridport Holdings, Inc.	Delaware
	Bridport-Air Carrier, Inc.	Washington
	Bruce Aerospace, Inc.	Delaware
	CDA InterCorp LLC	Florida
	CEF Industries, LLC	Delaware
	Champion Aerospace LLC	Delaware
(1)	Chelton Avionics Holdings, Inc.	Delaware
(1)	Chelton Avionics, Inc.	Delaware
	CMC Electronics Aurora LLC	Delaware
(1)	Cobham Defense Products, Inc.	Delaware
	Data Device Corporation	Delaware
	Dukes Aerospace, Inc.	Delaware
	Electromech Technologies LLC	Delaware
	Esterline Europe Company LLC	Delaware
	Esterline International Company	Delaware
	Esterline Technologies Corporation	Delaware
	Esterline Technologies SGIP, LLC	Delaware
	Extant Components Group Holdings, Inc.	Delaware
	Extant Components Group Intermediate, Inc.	Delaware
	HarcoSemco LLC	Connecticut
	Hartwell Corporation	California
	Hytek Finishes Co.	Delaware
	ILC Holdings, Inc.	Delaware
	Janco Corporation	California
	Johnson Liverpool LLC	Delaware
	Kirkhill Inc.	Delaware
	Korry Electronics Co.	Delaware
	Leach Holding Corporation	Delaware
	Leach International Corporation	Delaware
	Leach Technology Group, Inc.	Delaware
	MarathonNorco Aerospace, Inc.	Delaware
	Mason Electric Co.	Delaware
	McKechnie Aerospace DE, Inc.	Delaware
	McKechnie Aerospace Holdings, Inc.	Delaware
	McKechnie Aerospace US LLC	Delaware
(1)	NAT Seattle Inc.	Delaware
	NMC Group, Inc.	California
	Nordisk Aviation Products LLC	Delaware

	Subsidiary Guarantors	Jurisdiction of Incorporation or Organization
	North Hills Signal Processing Corp.	Delaware
	North Hills Signal Processing Overseas Corp.	Delaware
	Norwich Aero Products Inc.	New York
	Palomar Products, Inc.	Delaware
	Pexco Aerospace, Inc.	Delaware
	PneuDraulics, Inc.	California
(2)	Racal Acoustics, Inc.	Delaware
	Schneller LLC	Delaware
	ScioTeq LLC	Delaware
	Semco Instruments, Inc.	Delaware
	Shield Restraint Systems, Inc.	Delaware
	Skandia, Inc.	Illinois
	Skurka Aerospace, Inc.	Delaware
	Symetrics Industries, LLC	Florida
	Symetrics Technology Group, LLC	Florida
	TA Aerospace Co.	California
	Tactair Fluid Controls, Inc.	New York
	TDG ESL Holdings Inc.	Delaware
	TEAC Aerospace Holdings, Inc.	Delaware
	TEAC Aerospace Technologies, Inc.	Delaware
	Telair US LLC	Delaware
	Texas Rotronics, Inc.	Texas
(3)	TransDigm Inc.	Delaware
(3)	TransDigm UK Holdings plc	United Kingdom
	Transicoil LLC	Delaware
	TREALITY SVS LLC	Delaware
	Whippany Actuation Systems, LLC	Delaware
	Young & Franklin Inc.	New York

(1)	On January 5, 2021, the Company completed the acquisition of the entity.
(2)	On January 29, 2021, the Company completed the divestiture of the entity.
(3)	Entity is also a subsidiary issuer.

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Kevin Stein, certify that:

1.I have reviewed this quarterly report on Form 10-Q of TransDigm Group Incorporated;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s first fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors:

(a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 9, 2021

/s/ Kevin Stein

Name: Kevin Stein

Title: President, Chief Executive Officer and Director

(Principal Executive Officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Michael Lisman, certify that:

1.I have reviewed this quarterly report on Form 10-Q of TransDigm Group Incorporated;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a)designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

(b)designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

(c)evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

(d)disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s first fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s Board of Directors:

(a)all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

(b)any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date: February 9, 2021

/s/ Michael Lisman

Name: Michael Lisman

Title: Chief Financial Officer

(Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of TransDigm Group Incorporated (the “Company”) for the quarter ended January 2, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Kevin Stein, President, Chief Executive Officer and Director (Principal Executive Officer), certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and

2.The information contained in the Report fairly presents in all material respects, the financial condition of the Company as of the dates indicated and results of operations of the Company for the periods indicated.

Date: February 9, 2021

/s/ Kevin Stein

Name: Kevin Stein

Title: President, Chief Executive Officer and Director

(Principal Executive Officer)

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of TransDigm Group Incorporated (the “Company”) for the quarter ended January 2, 2021 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Michael Lisman, Chief Financial Officer (Principal Financial Officer) certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934; and

2.The information contained in the Report fairly presents in all material respects, the financial condition of the Company as of the dates indicated and results of operations of the Company for the periods indicated.

Date: February 9, 2021

/s/ Michael Lisman

Name: Michael Lisman

Title: Chief Financial Officer

(Principal Financial Officer)

XML

Document and Entity Information - shares	3 Months Ended
	Jan. 02, 2021	Jan. 25, 2021
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jan. 02, 2021
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	1301 East 9th Street,
Entity Address, Address Line Two	Suite 3000,
Entity Address, City or Town	Cleveland,
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44114
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		54,688,918
Document Fiscal Period Focus	Q1
Entity Central Index Key	0001260221
Document Fiscal Year Focus	2021
Amendment Flag	false
Current Fiscal Year End Date	--09-30

XML

Condensed Consolidated Balance Sheets - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 4,907	$ 4,717
Trade accounts receivable—Net	627	720
Inventories—Net	1,284	1,283
Prepaid expenses and other	256	240
Total current assets	7,074	6,960
PROPERTY, PLANT AND EQUIPMENT—Net	777	752
GOODWILL	7,927	7,889
OTHER INTANGIBLE ASSETS—Net	2,604	2,610
DEFERRED INCOME TAXES	18	17
OTHER	157	167
TOTAL ASSETS	18,557	18,395
CURRENT LIABILITIES:
Current portion of long-term debt	276	276
Short-term borrowings—trade receivable securitization facility	350	349
Accounts payable	197	218
Accrued and other current liabilities	740	773
Total current liabilities	1,563	1,616
LONG-TERM DEBT	19,394	19,384
DEFERRED INCOME TAXES	437	430
OTHER NON-CURRENT LIABILITIES	884	933
Total liabilities	22,278	22,363
TD GROUP STOCKHOLDERS’ DEFICIT:
Common stock - $.01 par value; authorized 224,400,000 shares; issued 58,853,007 and 58,612,028 at January 2, 2021 and September 30, 2020, respectively	1	1
Additional paid-in capital	1,656	1,581
Accumulated deficit	(4,314)	(4,359)
Accumulated other comprehensive loss	(277)	(401)
Treasury stock, at cost; 4,198,226 shares at January 2, 2021 and September 30, 2020, respectively	794	794
Total TD Group stockholders’ deficit	(3,728)	(3,972)
NONCONTROLLING INTERESTS	7	4
Total stockholders’ deficit	(3,721)	(3,968)
TOTAL LIABILITIES AND STOCKHOLDERS’ DEFICIT	$ 18,557	$ 18,395

XML

Condensed Consolidated Balance Sheets Parenthetical - $ / shares	Jan. 02, 2021	Sep. 30, 2020
Statement of Financial Position [Abstract]
Common Stock, Par or Stated Value Per Share	$ 0.01	$ 0.01
Common Stock, Shares Authorized	224,400,000	224,400,000
Common Stock, Shares, Issued	58,853,007	58,612,028
Treasury Stock, Shares	4,198,226	4,198,226

XML

Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
NET SALES	$ 1,108	$ 1,465
COST OF SALES	567	664
GROSS PROFIT	541	801
SELLING AND ADMINISTRATIVE EXPENSES	197	201
AMORTIZATION OF INTANGIBLE ASSETS	29	40
INCOME FROM OPERATIONS	315	560
INTEREST EXPENSE—NET	267	248
REFINANCING COSTS	0	22
OTHER INCOME	(5)	(3)
INCOME FROM CONTINUING OPERATIONS BEFORE INCOME TAXES	53	293
INCOME TAX PROVISION	3	59
INCOME FROM CONTINUING OPERATIONS	50	234
INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX	0	71
NET INCOME	50	305
LESS: NET INCOME ATTRIBUTABLE TO NONCONTROLLING INTERESTS	0	(1)
NET INCOME ATTRIBUTABLE TO TD GROUP	50	304
NET (LOSS) INCOME APPLICABLE TO TD GROUP COMMON STOCKHOLDERS	$ (23)	$ 119
(Loss) Earnings per share attributable to TD Group common stockholders:
(Loss) Earnings per share from continuing operations—basic and diluted	$ (0.42)	$ 0.83
Earnings per share from discontinued operations—basic and diluted	0	1.24
(Loss) Earnings per share	(0.42)	2.07
Cash dividends paid per common share	$ 0	$ 32.50
Weighted-average shares outstanding:
Basic and diluted	54.7	57.4

XML

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Net income	$ 50	$ 305
Less: Net income attributable to noncontrolling interests	0	1
NET INCOME ATTRIBUTABLE TO TD GROUP	50	304
Other comprehensive income, net of tax:
Foreign currency translation	111	98
Unrealized gain on derivatives	13	23
Pensions and other postretirement benefits	0	6
Other comprehensive income, net of tax, attributable to TD Group	124	127
TOTAL COMPREHENSIVE INCOME ATTRIBUTABLE TO TD GROUP	$ 174	$ 431

XML

Condensed Consolidated Statement of Changes in Stockholders' Deficit - USD ($) $ in Millions	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss	Treasury Stock	Non-controlling Interests
NONCONTROLLING INTERESTS							$ 10
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total stockholders’ deficit	$ (2,884)
BALANCE (in shares) at Sep. 30, 2019		57,623,311
BALANCE (in shares) at Sep. 30, 2019						(4,161,326)
BALANCE at Sep. 30, 2019		$ 1	$ 1,379	$ (3,120)	$ (379)	$ (775)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Changes in noncontrolling interest of consolidated subsidiaries, net	(6)						(6)
Special dividends and vested dividend equivalents declared	(1,864)			(1,864)
Accrued unvested dividend equivalents and other	(19)			(19)
Compensation expense recognized for employee stock options	23		23
Exercise of employee stock options		169,470
Exercise of employee stock options	20		20
NET INCOME ATTRIBUTABLE TO TD GROUP	304			304
Foreign currency translation adjustments, net of tax	98				98
Unrealized gain on derivatives, net of tax	23				23
Pensions and other postretirement benefits adjustments, net of tax	6				6
BALANCE (in shares) at Dec. 28, 2019		57,792,781
BALANCE (in shares) at Dec. 28, 2019						(4,161,326)
BALANCE at Dec. 28, 2019		$ 1	1,422	(4,699)	(252)	$ (775)
NONCONTROLLING INTERESTS							4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total stockholders’ deficit	(4,299)
NONCONTROLLING INTERESTS	4						4
Total stockholders’ deficit	$ (3,968)
BALANCE (in shares) at Sep. 30, 2020	58,612,028	58,612,028
BALANCE (in shares) at Sep. 30, 2020	(4,198,226)					(4,198,226)
BALANCE at Sep. 30, 2020	$ (3,972)	$ 1	1,581	(4,359)	(401)	$ (794)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Changes in noncontrolling interest of consolidated subsidiaries, net	3						3
Accrued unvested dividend equivalents and other	(5)			(5)
Compensation expense recognized for employee stock options	43		43
Exercise of employee stock options		240,979
Exercise of employee stock options	32		32
NET INCOME ATTRIBUTABLE TO TD GROUP	50			50
Foreign currency translation adjustments, net of tax	111				111
Unrealized gain on derivatives, net of tax	13				13
Pensions and other postretirement benefits adjustments, net of tax	$ 0				0
BALANCE (in shares) at Jan. 02, 2021	58,853,007	58,853,007
BALANCE (in shares) at Jan. 02, 2021	(4,198,226)					(4,198,226)
BALANCE at Jan. 02, 2021	$ (3,728)	$ 1	$ 1,656	$ (4,314)	$ (277)	$ (794)
NONCONTROLLING INTERESTS	7						$ 7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Total stockholders’ deficit	$ (3,721)

XML

Condensed Consolidated Statement of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
OPERATING ACTIVITIES:
NET INCOME	$ 50	$ 305
Net income from discontinued operations	0	(71)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	29	29
Amortization of intangible assets	29	40
Amortization of debt issuance costs, original issue discount and premium	9	8
Amortization of loss contract reserves	(18)	(11)
Refinancing costs	0	22
Non-cash stock compensation	49	26
Deferred income taxes	5	(2)
Changes in assets/liabilities, net of effects from acquisitions of businesses:
Trade accounts receivable	86	51
Inventories	1	(69)
Income taxes receivable/payable	16	30
Other assets	3	(5)
Accounts payable	(20)	(14)
Accrued interest	7	88
Accrued and other liabilities	28	6
Net cash provided by operating activities	274	433
INVESTING ACTIVITIES:
Capital expenditures	(31)	(27)
Acquisition of businesses, net of cash acquired	(6)	0
Net proceeds from sale of businesses	8	904
Net cash (used in) provided by investing activities	(29)	877
FINANCING ACTIVITIES:
Proceeds from exercise of stock options	32	20
Dividend equivalent payments	(73)	(64)
Repayment on term loans	(19)	0
Redemption of 6.00% senior subordinated notes due 2022, net	0	(1,168)
Proceeds from 5.50% senior subordinated notes due 2027, net	0	2,625
Financing costs and other, net	0	1
Net cash (used in) provided by financing activities	(60)	1,414
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	5	3
NET INCREASE IN CASH AND CASH EQUIVALENTS	190	2,727
Cash and cash equivalents	4,907	4,194
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest	252	155
Cash (refunded) paid during the period for income taxes, net	$ (5)	$ 29

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DESCRIPTION OF THE BUSINESS AND IMPACT OF COVID-19 PANDEMIC

3 Months Ended

Jan. 02, 2021

Accounting Policies [Abstract]

DESCRIPTION OF THE BUSINESS AND IMPACT OF COVID-19

DESCRIPTION OF THE BUSINESS AND IMPACT OF COVID-19 PANDEMIC

Description of the Business

TransDigm Group Incorporated (“TD Group”), through its wholly-owned subsidiary, TransDigm Inc., is a leading global designer, producer and supplier of highly engineered aircraft components for use on nearly every commercial and military aircraft in service today. TransDigm Inc., along with TransDigm Inc.’s direct and indirect wholly-owned operating subsidiaries (collectively, with TD Group, the “Company” or “TransDigm”), offers a broad range of proprietary aerospace products. TD Group has no significant assets or operations other than its 100% ownership of TransDigm Inc. TD Group’s common stock is listed on the New York Stock Exchange, or the NYSE, under the trading symbol “TDG.”

TransDigm's major product offerings, substantially all of which are ultimately provided to end-users in the aerospace industry, include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, databus and power controls, cockpit security components and systems, specialized and advanced cockpit displays, aircraft audio systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, advanced sensor products, switches and relay panels, thermal protection and insulation, lighting and control technology, parachutes, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems.

Impact of COVID-19 Pandemic - Restructuring Costs

The commercial aerospace industry continues to be significantly disrupted, both domestically and internationally, by the COVID-19 pandemic resulting in ongoing business challenges. Material actions to reduce costs in response to the impact that the pandemic has had on operating results include: (1) reducing the Company's workforce to align operations with customer demand through a reduction in force or through a realignment of certain business units; (2) implementing unpaid furloughs and salary reductions; (3) delaying non-essential capital projects and (4) minimizing discretionary spending.

For the thirteen week period ended January 2, 2021, COVID-19 restructuring costs of approximately $20 million were incurred, of which $13 million was recorded in cost of sales and $7 million was recorded in selling and administrative expenses on the condensed consolidated statements of income. These costs are primarily related to the Company's actions to reduce its workforce to align with customer demand. Additionally, the Company incurred approximately $1 million in incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.). There were no COVID-19 restructuring costs or incremental costs incurred related to the pandemic for the thirteen week period ended December 28, 2019.

As of January 2, 2021 and September 30, 2020, the restructuring accrual associated with the costs incurred in response to the COVID-19 pandemic was approximately $27 million and $13 million, respectively. This accrual is recorded as a component of accrued and other current liabilities on the condensed consolidated balance sheets. The Company expects to incur and pay additional restructuring costs during fiscal 2021 related to the COVID-19 pandemic though at a reduced level in comparison to fiscal 2020. The Company continues to analyze its cost structure and may implement additional cost reduction measures as necessary due to the ongoing business challenges resulting from the COVID-19 pandemic.

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UNAUDITED INTERIM FINANCIAL INFORMATION	3 Months Ended
	Jan. 02, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
UNAUDITED INTERIM FINANCIAL INFOMRATION	UNAUDITED INTERIM FINANCIAL INFORMATIONThe 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 year ended September 30, 2020 included in TD Group’s Form 10-K filed on November 12, 2020. 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, 2020 condensed consolidated balance sheet was derived from TD Group’s audited financial statements. The results of operations for the thirteen week period ended January 2, 2021 are not necessarily indicative of the results to be expected for the full year.

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ACQUISITIONS AND DIVESTITURES

3 Months Ended

Jan. 02, 2021

Business Combinations [Abstract]

ACQUISITIONS AND DIVESTITURES

ACQUISITIONS AND DIVESTITURES

Acquisitions

Cobham Aero Connectivity – On November 24, 2020, the Company entered into a definitive agreement to acquire Cobham Aero Connectivity (“CAC”) for approximately $959 million in cash. The acquisition was substantially completed on January 5, 2021 and financed through existing cash on hand. A portion of the acquisition representing approximately 2% of the purchase price remains subject to Finnish regulatory approval and is expected to close during the second quarter of fiscal 2021. CAC operates from two primary facilities (Marlow, United Kingdom and Prescott, Arizona) and is a leading provider of highly engineered antennas and radios for the aerospace end market. The products are primarily proprietary with significant aftermarket content and have a strong presence across major defense platforms as well as select commercial applications. CAC will be included in TransDigm's Airframe segment.

The acquisition will 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 strategies (obtaining profitable new business, improving our cost structure, and providing highly engineered value-added products to customers). The purchase price paid for the acquisition reflects the current earnings before interest, taxes, depreciation and amortization (EBITDA) and cash flows, as well as the future EBITDA and cash flows expected to be generated by the business, 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.

Divestitures

Racal Acoustics – On January 29, 2021, TransDigm completed the divestiture of the Racal Acoustics business (“Racal”) to Invisio Communications AB for approximately $20 million in cash. Racal was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and is included in TransDigm's Non-aviation segment. During the first quarter of fiscal 2021, the Company determined Racal met the criteria to be classified as held for sale. Therefore, the assets and liabilities of Racal, which are not material, have been presented as held for sale in the condensed consolidated balance sheet as of January 2, 2021.

Avista – On November 17, 2020, TransDigm completed the divestiture of the Avista, Inc. business ("Avista") to Belcan, LLC ("Belcan") for approximately $8 million. Avista was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and was included in TransDigm's Airframe segment. During the fourth quarter of fiscal 2020, the Company determined Avista met the criteria to be classified as held for sale. Therefore, the assets and liabilities of Avista, which were not material, have been presented as held for sale in the condensed consolidated balance sheet as of September 30, 2020.

Souriau-Sunbank – On December 20, 2019, TransDigm completed the divestiture of the Souriau-Sunbank Connection Technologies business (“Souriau-Sunbank”) to Eaton Corporation plc (“Eaton”) for approximately $920 million. Souriau-Sunbank was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and was included in TransDigm's Non-aviation segment. Refer to Note 18, "Discontinued Operations," for additional disclosures on the Souriau-Sunbank divestiture.

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RECENT ACCOUNTING PRONOUNCEMENTS

3 Months Ended

Jan. 02, 2021

Accounting Standards Update and Change in Accounting Principle [Abstract]

RECENT ACCOUNTING PRONOUNCEMENTS

RECENT ACCOUNTING PRONOUNCEMENTS

In June 2016, the FASB issued ASU 2016-13, "Financial Instruments—Credit Losses: Measurement of Credit Losses on Financial Instruments (ASU 2016-13)," which changes the impairment model for most financial assets. The new model uses a forward-looking expected loss method, which will generally result in earlier recognition of allowances for losses. The Company adopted ASU 2016-13 on October 1, 2020. The adoption of this standard did not have a material impact on our condensed consolidated financial statements. Refer to Note 5, "Revenue Recognition," for additional disclosures.

In January 2017, the FASB issued ASU 2017-04, “Simplifying the Test for Goodwill Impairment,” to eliminate Step 2 from the goodwill impairment test in order to simplify the subsequent measurement of goodwill. The guidance is effective for the Company on October 1, 2020. The adoption of this standard did not have a material impact on our condensed consolidated financial statements and disclosures.

In December 2019, the FASB issued ASU 2019-12, “Income Taxes (ASC 740) - Simplifying the Accounting for Income Taxes,” which simplifies the accounting for income taxes by removing certain exceptions to the general principles in ASC 740. The amendments also improve consistent application of and simplify U.S. GAAP for other areas of ASC 740 by clarifying and amending existing guidance. This guidance is effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2020. Early adoption of the amendments is permitted, including adoption in any interim period for which financial statements have not yet been issued. Depending on the amendment, adoption may be applied on the retrospective, modified retrospective or prospective basis. The Company is currently evaluating the impact of adopting this standard on our condensed consolidated financial statements and disclosures.

In March 2020, the FASB issued ASU 2020-04, “Reference Rate Reform." This ASU provides optional guidance for a limited period of time to ease potential accounting impacts associated with transitioning away from reference rates that are expected to be discontinued, such as the London Interbank Offered Rate ("LIBOR"). The amendments in this ASU apply only to contracts, hedging relationships, and other transactions that reference LIBOR or another reference rate expected to be discontinued. The amendments in this ASU are effective through December 31, 2022. The Company is currently evaluating the impact of adopting this standard on our condensed consolidated financial statements and disclosures.

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REVENUE RECOGNITION

3 Months Ended

Jan. 02, 2021

Revenue from Contract with Customer [Abstract]

REVENUE RECOGNITION

REVENUE RECOGNITION

TransDigm's sales are concentrated in the aerospace 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 and friendly foreign governments, defense OEMs, system suppliers, and various other industrial customers.

The majority of the Company's revenue is recorded at a point in time. Revenue is recognized from the sale of products when control transfers to the customer, which is demonstrated by our right to payment, a transfer of title, a transfer of the risk and rewards of ownership, or the customer acceptance, but most frequently upon shipment where the customer obtains physical possession of the goods.

In some 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 the current year. 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 assesses 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.

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 condensed 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.

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 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):

	January 2, 2021		September 30, 2020		Change
Contract assets, current (1)	$	49	$	36	$	13
Contract assets, non-current (2)	2		6		(4)
Total contract assets	51		42		9
Contract liabilities, current (3)	19		18		1
Contract liabilities, non-current (4)	5		9		(4)
Total contract liabilities	24		27		(3)
Net contract assets	$	27	$	15	$	12

(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 thirteen week period ended January 2, 2021, the revenue recognized that was previously included in contract liabilities was not material.

Refer to Note 13, “Segments,” for disclosures related to the disaggregation of revenue.

Allowance for Credit Losses - The Company's allowance for credit losses is the allowance for uncollectible accounts. The allowance for uncollectible accounts reduces the trade accounts receivable balance to the estimated net realizable value equal to the amount that is expected to be collected.

The Company’s method for developing its allowance for credit losses is based on historical write-off experience, the aging of receivables, an assessment of the creditworthiness of customers, economic conditions and other external market information. All provisions for allowances for uncollectible accounts are included in selling and administrative expenses.

The allowance for uncollectible accounts was $41 million and $37 million as of January 2, 2021 and September 30, 2020, respectively. The increase in the allowance for uncollectible accounts in the first quarter of fiscal 2021 is primarily driven by additional collectibility risk assessed on receivables from certain customers that have been significantly adversely impacted by the COVID-19 pandemic. The allowance for uncollectible accounts is assessed individually at each operating unit by the operating unit’s management team.

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EARNINGS PER SHARE (TWO-CLASS METHOD)

3 Months Ended

Jan. 02, 2021

Earnings Per Share [Abstract]

EARNINGS PER SHARE (TWO-CLASS METHOD)

EARNINGS PER SHARE

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

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Numerator for (loss) earnings per share:
Income from continuing operations	$	50	$	234
Less: Net income attributable to noncontrolling interests	—		(1)
Net income from continuing operations attributable to TD Group	50		233
Less: Special dividends declared or paid on participating securities, including dividend equivalent payments	(73)		(185)
Income from discontinued operations, net of tax	—		71
Net (loss) income applicable to TD Group common stockholders - basic and diluted	$	(23)	$	119
Denominator for basic and diluted (loss) earnings per share under the two-class method:
Weighted-average common shares outstanding	54.7		53.6
Vested options deemed participating securities	—		3.8
Total shares for basic and diluted (loss) earnings per share	54.7		57.4
(Loss) Earnings per share from continuing operations—basic and diluted	$	(0.42)	$	0.83
Earnings per share from discontinued operations—basic and diluted	—		1.24
(Loss) Earnings per share	$	(0.42)	$	2.07

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INVENTORIES

3 Months Ended

Jan. 02, 2021

Inventory Disclosure [Abstract]

INVENTORIES

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):

	January 2, 2021		September 30, 2020
Raw materials and purchased component parts	$	900	$	881
Work-in-progress	360		358
Finished goods	213		222
Total	1,473		1,461
Reserves for excess and obsolete inventory	(189)		(178)
Inventories - Net	$	1,284	$	1,283

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INTANGIBLE ASSETS

3 Months Ended

Jan. 02, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

INTANGIBLE ASSETS

INTANGIBLE ASSETS

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

	January 2, 2021						September 30, 2020
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Trademarks and trade names	$	963	$	—	$	963	$	958	$	—	$	958
Technology	1,856		613		1,243		1,842		589		1,253
Order backlog	91		91		—		93		93		—
Customer relationships	449		58		391		443		52		391
Other	18		11		7		18		10		8
Total	$	3,377	$	773	$	2,604	$	3,354	$	744	$	2,610

The aggregate amortization expense on identifiable intangible assets for the thirteen week periods ended January 2, 2021 and December 28, 2019 was approximately $29 million and $40 million, respectively. The estimated amortization expense is $115 million for fiscal year 2021, $114 million for each of the following four succeeding fiscal years 2022 through 2025 and $109 million for fiscal year 2026.

The following is a summary of changes in the carrying value of goodwill by segment from September 30, 2020 through January 2, 2021 (in millions):

	Power & Control		Airframe		Non- aviation		Total
Balance at September 30, 2020	$	4,141	$	3,647	$	101	$	7,889
Goodwill acquired during the period	4		—		—		4
Reclassification of goodwill to assets held-for-sale (Note 3)	—		—		(8)		(8)
Currency translation adjustments	15		27		—		42
Balance at January 2, 2021	$	4,160	$	3,674	$	93	$	7,927

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DEBT

3 Months Ended

Jan. 02, 2021

Debt Disclosure [Abstract]

DEBT

DEBT

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

	January 2, 2021
	Gross Amount		Debt Issuance Costs		Original Issue Discount or Premium		Net Amount
Short-term borrowings—trade receivable securitization facility	$	350	$	—	$	—	$	350
Term loans	$	7,429	$	(46)	$	(20)	$	7,363
Revolving credit facility	200		—		—		200
6.50% senior subordinated notes due 2024 (2024 Notes)	1,200		(4)		—		1,196
6.50% senior subordinated notes due 2025 (2025 Notes)	750		(2)		2		750
8.00% senior secured notes due 2025 (2025 Secured Notes)	1,100		(9)		—		1,091
6.375% senior subordinated notes due 2026 (6.375% 2026 Notes)	950		(6)		—		944
6.875% senior subordinated notes due 2026 (6.875% 2026 Notes)	500		(4)		(3)		493
6.25% senior secured notes due 2026 (2026 Secured Notes)	4,400		(53)		5		4,352
7.50% senior subordinated notes due 2027 (7.50% 2027 Notes)	550		(4)		—		546
5.50% senior subordinated notes due 2027 (5.50% 2027 Notes)	2,650		(21)		—		2,629
Government refundable advances	30		—		—		30
Finance lease obligations	76		—		—		76
	19,835		(149)		(16)		19,670
Less: current portion	277		(1)		—		276
Long-term debt	$	19,558	$	(148)	$	(16)	$	19,394

	September 30, 2020
	Gross Amount		Debt Issuance Costs		Original Issue Discount or Premium		Net Amount
Short-term borrowings—trade receivable securitization facility	$	350	$	(1)	$	—	$	349
Term loans	$	7,449	$	(48)	$	(23)	$	7,378
Revolving credit facility	200		—		—		200
2024 Notes	1,200		(5)		—		1,195
2025 Notes	750		(3)		3		750
2025 Secured Notes	1,100		(9)		—		1,091
6.375% 2026 Notes	950		(6)		—		944
6.875% 2026 Notes	500		(4)		(3)		493
2026 Secured Notes	4,400		(55)		5		4,350
7.50% 2027 Notes	550		(5)		—		545
5.50 % 2027 Notes	2,650		(21)		—		2,629
Government refundable advances	28		—		—		28
Finance lease obligations	57		—		—		57
	19,834		(156)		(18)		19,660
Less: current portion	277		(1)		—		276
Long-term debt	$	19,557	$	(155)	$	(18)	$	19,384

Accrued interest, which is classified as a component of accrued and other current liabilities, was $185.0 million and $177.6 million as of January 2, 2021 and September 30, 2020, respectively.

Subsequent Event - Issuance of Senior Subordinated Notes due 2029 – On January 14, 2021, the Company entered into a purchase agreement in connection with a private offering of $1,200 million of 4.625% Senior Subordinated Notes due 2029 (herein, the “2029 Notes”) at an issue price of 100% of the principal amount. The 2029 Notes were issued pursuant to an indenture, dated January 20, 2021, among TransDigm, Inc., as issuer, TransDigm Group, TransDigm UK and the other subsidiaries of TransDigm, Inc. named therein, as guarantors.

The 2029 Notes bear interest at the rate of 4.625% per annum, which accrues from January 14, 2021 and is payable in arrears on January 15th and July 15th of each year, commencing on July 15, 2021. The 2029 Notes mature on January 15, 2029, unless earlier redeemed or repurchased, and are subject to the terms and conditions set forth in the indenture. The Company expects to use the net proceeds from the offering of the 2029 Notes to redeem all of its outstanding 2024 Notes.

Government Refundable Advances - Government refundable advances consist of payments received from the Canadian government to assist in research and development related to commercial aviation. The requirement to repay this advance is solely based on year-over-year commercial aviation revenue growth at CMC Electronics, which is a subsidiary of TransDigm. The balance was $29.8 million at January 2, 2021 and $28.4 million at September 30, 2020.

Obligations under Finance Leases - The Company leases certain buildings and equipment under finance leases. The present value of the minimum capital lease payments, net of the current portion, represents a balance of $75.6 million at January 2, 2021 and $56.8 million at September 30, 2020. Refer to Note 16, "Leases," for further disclosure on the Company's finance lease obligations.

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INCOME TAXES

3 Months Ended

Jan. 02, 2021

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 January 2, 2021 and December 28, 2019, the effective income tax rate was 5.5% and 20.1%, respectively. The Company's lower effective tax rate for the thirteen week period ended January 2, 2021, which also was lower than the Federal statutory tax rate of 21%, was primarily due to the significant 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 2015. The Company is currently under examination for its federal income taxes in the U.S. for fiscal 2016, in Belgium for fiscal years 2016 through 2018, in Canada for fiscal years 2013 through 2015, in France for fiscal years 2015 through 2018, and in Germany for fiscal years 2014 through 2017. The Company expects the examination in France to be completed during the current fiscal year. In addition, the Company is subject to state income tax examinations for fiscal years 2015 and later.At January 2, 2021 and September 30, 2020, TD Group had $42.2 million and $40.9 million, respectively, in unrecognized tax benefits, the recognition of which would have an effect of approximately $37.0 million and $35.7 million on the effective tax rate at January 2, 2021 and September 30, 2020, respectively. The Company believes the tax positions that comprise the unrecognized tax benefits will be reduced by approximately $22.0 million over the next 12 months. The Company recognizes accrued interest and penalties related to unrecognized tax benefits as a component of income tax expense.

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FAIR VALUE MEASUREMENTS

3 Months Ended

Jan. 02, 2021

Fair Value Disclosures [Abstract]

FAIR VALUE MEASUREMENTS

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):

		January 2, 2021				September 30, 2020
	Level	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	4,907	$	4,907	$	4,717	$	4,717
Foreign currency forward exchange contracts and other (1)	2	3		3		—		—
Liabilities:
Interest rate swap agreements (2)	2	66		66		56		56
Interest rate swap agreements (3)	2	302		302		328		328
Foreign currency forward exchange contracts and other (2)	2	—		—		1		1
Short-term borrowings - trade receivable securitization facility (4)	2	350		350		349		349
Long-term debt, including current portion:
Term loans (4)	2	7,363		7,223		7,378		7,004
Revolving credit facility (4)	2	200		200		200		200
2024 Notes (4)	1	1,196		1,218		1,195		1,194
2025 Notes (4)	1	750		772		750		743
2025 Secured Notes (4)	1	1,091		1,209		1,091		1,194
6.375% 2026 Notes (4)	1	944		983		944		948
6.875% 2026 Notes (4)	1	493		526		493		500
2026 Secured Notes (4)	1	4,352		4,686		4,350		4,604
7.50% 2027 Notes (4)	1	546		587		545		569
5.50% 2027 Notes (4)	1	2,629		2,763		2,629		2,554
Government refundable advances	2	30		30		28		28
Finance lease obligations	2	76		76		57		57

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

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

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

(4)The carrying amount of the debt instrument is presented net of debt issuance costs, premium and discount. Refer to Note 9, "Debt," for gross carrying amounts.

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 using unobservable inputs (i.e., Level 3).

Interest rate swaps were measured at fair value using quoted market prices for the swap interest rate indexes over the term of the swap discounted to present value versus the fixed rate of the contract. The interest rate caps were measured at fair value using implied volatility rates of each individual caplet and the yield curve for the related periods.

The Company’s derivative contracts consist of foreign currency exchange contracts and, from time to time, interest rate swap and cap agreements. These derivative contracts are over-the-counter, and their fair value is determined using modeling techniques that include market inputs such as interest rates, yield curves, and currency exchange rates. These contracts are categorized as Level 2 in the fair value hierarchy.

The estimated fair value of the Company’s term loans was based on information provided by the agent under the Company’s senior secured credit facility. The estimated fair values of the Company’s notes were based upon quoted market prices. 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 impact to the fair value of derivative assets based on the Company's evaluation of counterparties' credit risks.

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 January 2, 2021 and September 30, 2020.

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DERIVATIVES AND HEDGING ACTIVITIES

3 Months Ended

Jan. 02, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

DERIVATIVES AND HEDGING ACTIVITIES

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 and cap counterparties that contain a provision whereby if the Company defaults on the credit facility the Company could also be declared in default on its swaps and caps, resulting in an acceleration of payment under the swaps and caps.

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 sheet 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 and Cap Agreements – Interest rate swap and cap agreements are used to manage interest rate risk associated with floating-rate borrowings under our credit facility. The interest rate swap and cap 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 through the expiration date of the interest rate swap and cap agreements, thereby reducing the impact of interest rate changes on future interest expense. 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. These derivative instruments qualify as effective cash flow hedges under U.S. GAAP. For these cash flow hedges, the effective portion of the gain or loss from the financial instruments was 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 affected earnings. As the interest rate swap and cap 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.

The following table summarizes the Company's interest rate swap agreements:

Aggregate Notional Amount (in millions)	Start Date	End Date	Related Term Loans	Conversion of Related Variable Rate Debt to Fixed Rate of:
$500	6/29/2018	3/31/2025	Tranche E	5.25% (3.0% plus the 2.25% margin percentage)
$750	6/30/2020	6/30/2022	Tranche E	4.75% (2.5% plus the 2.25% margin percentage)
$1,500	6/30/2022	3/31/2025	Tranche E	5.35% (3.1% plus the 2.25% margin percentage)
$1,000	6/28/2019	12/9/2025	Tranche F	4.05% (1.8% plus the 2.25% margin percentage)
$1,400	6/30/2021	12/9/2025	Tranche F	5.25% (3.0% plus the 2.25% margin percentage)
$500	12/30/2016	12/31/2021	Tranche G	4.15% (1.9% plus the 2.25% margin percentage)
$400	9/30/2017	9/30/2022	Tranche G	4.15% (1.9% plus the 2.25% margin percentage)
$900	12/31/2021	6/28/2024	Tranche G	5.35% (3.1% plus the 2.25% margin percentage)
$400	9/30/2022	6/28/2024	Tranche G	5.25% (3.0% plus the 2.25% margin percentage)

The following table summarizes the Company's interest rate cap agreements:

Aggregate Notional Amount (in millions)	Start Date	End Date	Related Term Loans	Offsets Variable Rate Debt Attributable to Fluctuations Above:
$750	6/30/2020	6/30/2022	Tranche E	Three month LIBOR rate of 2.5%
$400	6/30/2016	6/30/2021	Tranche F	Three month LIBOR rate of 2.0%
$400	12/30/2016	12/31/2021	Tranche G	Three month LIBOR rate of 2.5%

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 sheet and the net amounts of assets and liabilities presented therein (in millions).

	January 2, 2021				September 30, 2020
	Asset		Liability		Asset		Liability
Interest rate swap agreements (1)	$	—	$	(368)	$	—	$	(384)

(1)Refer to Note 11, "Fair Value Measurements," for the condensed consolidated balance sheet classification of our interest rate swap agreements.

Based on the fair values of the interest rate swap and cap agreements determined as of January 2, 2021, the estimated net amount of existing gains and losses and caplet amortization expected to be reclassified into interest expense within the next twelve months is approximately $13.7 million.

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 January 2, 2021, the Company had outstanding foreign currency forward exchange contracts to sell U.S. dollars with notional amounts of $123.6 million. These notional values consist of contracts for the Canadian dollar and the European euro and are stated in U.S. dollar equivalents at spot exchange rates at the respective trade dates. There was an immaterial impact to the Company's earnings related to the effective and ineffective portion of the foreign currency forward exchange contracts designated as cash flow hedges for the thirteen week period ended January 2, 2021.

Amounts related to foreign currency forward exchange contracts included in accumulated other comprehensive loss in stockholders' deficit are reclassified into earnings when the hedged transaction settles. The maximum duration of the Company’s foreign currency cash flow hedge contracts at January 2, 2021 is 9 months. As of January 2, 2021, the Company expects to reclassify approximately $5.8 million of unrealized gain classified in other comprehensive income into earnings over the next 9 months.

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SEGMENTS

3 Months Ended

Jan. 02, 2021

Segment Reporting [Abstract]

SEGMENTS

SEGMENTS

The Company’s businesses are organized and managed in three reporting segments: Power & Control, Airframe and Non-aviation.

The Power & Control segment includes operations that primarily develop, produce and market systems and components that predominately provide power to or control power of the aircraft utilizing electronic, fluid, power and mechanical motion control technologies. Major product offerings include mechanical/electro-mechanical actuators and controls, ignition systems and engine technology, specialized pumps and valves, power conditioning devices, specialized AC/DC electric motors and generators, batteries and chargers, databus and power controls, advanced sensor products, switches and relay panels, high performance hoists, winches and lifting devices, and cargo loading, handling and delivery systems. Primary customers of this segment are engine and power system and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies and repair depots. Products are sold in the original equipment and aftermarket market channels.

The Airframe segment includes operations that primarily develop, produce and market systems and components that are used in non-power airframe applications utilizing airframe and cabin structure technologies. Major product offerings include engineered latching and locking devices, engineered rods, engineered connectors and elastomer sealing solutions, cockpit security components and systems, specialized and advanced cockpit displays, aircraft audio systems, specialized lavatory components, seat belts and safety restraints, engineered and customized interior surfaces and related components, thermal protection and insulation, lighting and control technology and parachutes. Primary customers of this segment are airframe manufacturers and cabin system suppliers and subsystem suppliers, airlines, third party maintenance suppliers, military buying agencies and repair depots. Products are sold in the original equipment and aftermarket market channels.

The Non-aviation segment includes operations that primarily develop, produce and market products for non-aviation markets. Major product offerings include headsets for high-noise, medium-noise, and dismounted applications, seat belts and safety restraints for ground transportation applications, mechanical/electro-mechanical actuators and controls for space applications, hydraulic/electromechanical actuators and fuel valves for land based gas turbines, and refueling systems for heavy equipment used in mining, construction and other industries and turbine controls for the energy and oil and gas markets. Primary customers of this segment are off-road vehicle suppliers and subsystem suppliers, child restraint system suppliers, satellite and space system suppliers, manufacturers of heavy equipment used in mining, construction and other industries and turbine original equipment manufacturers, gas pipeline builders and electric utilities.

The primary measurement used by management to review and assess the operating performance of each segment is EBITDA As Defined. 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 plans, restructuring costs related to the Company's cost reduction measures in response to the COVID-19 pandemic, foreign currency gains and losses, acquisition-integration costs, acquisition transaction-related expenses, and refinancing costs. COVID-19 restructuring costs represent actions taken by the Company to reduce its workforce to align with customer demand, as well as incremental costs related to the pandemic that are not expected to recur once the pandemic has subsided and are clearly separable from normal operations (e.g., additional cleaning and disinfecting of facilities by contractors above and beyond normal requirements, personal protective equipment, etc.). Acquisition-related costs represent accounting adjustments to inventory associated with acquisitions of businesses and product lines that were charged to cost of sales when the inventory was sold; costs incurred to integrate acquired businesses and product lines into the Company’s operations, facility relocation costs and other acquisition-related costs; transaction-related costs comprising deal fees; legal, financial and tax diligence expenses and valuation costs that are required to be expensed as incurred and other acquisition accounting adjustments.

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 Company’s segments are reported on the same basis used internally for evaluating performance and for allocating resources. The accounting policies for each segment are the same as those described in the summary of significant accounting policies in the Company’s consolidated financial statements. 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. Certain corporate-level expenses are allocated to the operating segments.

The following table presents net sales by reportable segment (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Net sales to external customers
Power & Control
Commercial OEM	$	126	$	184
Commercial Aftermarket	132		220
Defense	343		348
Total Power & Control	601		752
Airframe
Commercial OEM	142		230
Commercial Aftermarket	112		245
Defense	210		199
Total Airframe	464		674
Total Non-aviation	43		39
	$	1,108	$	1,465

The following table reconciles EBITDA As Defined by segment to consolidated income from continuing operations before income taxes (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
EBITDA As Defined
Power & Control	$	304	$	385
Airframe	177		305
Non-aviation	15		13
Total segment EBITDA As Defined	496		703
Less: Unallocated corporate expenses	22		22
Total Company EBITDA As Defined	474		681
Depreciation and amortization expense	58		69
Interest expense, net	267		248
Acquisition-related costs	4		7
Stock compensation expense	49		26
Refinancing costs	—		22
COVID-19 pandemic restructuring costs	21		—
Other, net	22		16
Income from continuing operations before income taxes	$	53	$	293

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

	January 2, 2021		September 30, 2020
Total assets
Power & Control	$	7,022	$	7,005
Airframe	6,603		6,575
Non-aviation	241		251
Corporate	4,691		4,564
	$	18,557	$	18,395

The Company’s sales principally originate from the United States, and the Company’s long-lived assets are principally located in the United States.

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RETIREMENT BENEFITS

3 Months Ended

Jan. 02, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Pension and Other Postretirement Benefits Disclosure [Text Block]

RETIREMENT PLANS

The components of net periodic pension cost for the Company's defined benefit plans were as follows (in millions):

	Thirteen Week Periods Ended
	January 2, 2021				December 28, 2019
	U.S. Pension Plans		Non-U.S. Pension Plans		U.S. Pension Plans		Non-U.S. Pension Plans
Service cost	$	2	$	1	$	2	$	1
Interest cost	2		1		3		1
Expected return on plan assets	(5)		(2)		(5)		(1)
Amortization	—		1		—		—
Net periodic pension (benefit) cost	$	(1)	$	1	$	—	$	1

The net periodic pension cost for the Company's post-retirement pension plans was immaterial for the thirteen week periods ended January 2, 2021 and December 28, 2019. The defined benefit plan components of total pension cost, other than service cost, are included in other expense in the Company's condensed consolidated statements of income.

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ACCUMULATED OTHER COMPREHENSIVE LOSS

3 Months Ended

Jan. 02, 2021

Equity [Abstract]

ACCUMULATED OTHER COMPREHENSIVE LOSS

ACCUMULATED OTHER COMPREHENSIVE LOSS

The following table presents the components of accumulated other comprehensive loss, net of taxes, for the thirteen week period ended January 2, 2021 (in millions):

	Unrealized gains on derivatives designated and qualifying as cash flow hedges (1)		Defined benefit pension plan activity (2)		Currency translation adjustment		Total
Balance at September 30, 2020	$	(302)	$	(8)	$	(91)	$	(401)
Current-period other comprehensive income	13		—		111		124
Balance at January 2, 2021	$	(289)	$	(8)	$	20	$	(277)

(1)Unrealized gains represents derivative instruments, net of taxes of $(5.0) million and $(9.8) million for the thirteen week periods ended January 2, 2021 and December 28, 2019, respectively.

(2)There were no material pension liability adjustments, net of taxes, for the thirteen week periods ended January 2, 2021 and December 28, 2019.

Reclassifications out of accumulated other comprehensive loss for the thirteen week periods ended January 2, 2021 and December 28, 2019 were immaterial.

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LEASES

3 Months Ended

Jan. 02, 2021

Leases [Abstract]

LEASES

LEASES

The Company leases certain manufacturing facilities, offices, land, equipment and vehicles. Such leases, some of which are noncancelable and, in many cases, include renewals, expire at various dates. Such options to renew are included in the lease term when it is reasonably certain that the option will be exercised. The Company’s lease agreements typically do not contain any significant residual value guarantees or restrictive covenants, and payments within certain lease agreements are adjusted periodically for changes in an index or rate.

The Company determines if an arrangement is a lease at inception. Operating lease assets and liabilities are recognized at the commencement date of the lease based on the present value of lease payments over the lease term. Lease assets represent the Company’s right to use an underlying asset for the lease term and lease liabilities represent the Company’s obligation to make lease payments arising from the lease. The discount rate implicit within our leases is generally not determinable and therefore we determine the discount rate based on our incremental borrowing rate. The incremental borrowing rate for our leases is determined based on the lease term and the currency in which lease payments are made. The length of a lease term includes options to extend or terminate the lease when it is reasonably certain that the Company will exercise those options. The Company made an accounting policy election to not recognize lease assets or liabilities for leases with a term of 12 months or less. Additionally, when accounting for leases, the Company combines payments for leased assets, related services and other components of a lease.

The components of lease expense for the are as follows (in millions):

		Thirteen Week Periods Ended
	Classification	January 2, 2021		December 28, 2019
Operating lease cost	Cost of Sales or Selling and Administrative Expenses	$	7	$	7
Finance lease cost
Amortization of leased assets	Cost of Sales	$	1	$	1
Interest on lease liabilities	Interest Expense - Net	1		1
Total lease cost		$	9	$	9

Supplemental cash flow information related to leases is as follows (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	7	$	7
Operating cash outflows from finance leases	1		1
Lease assets obtained in exchange for new lease obligations:
Operating leases	$	4	$	10
Finance leases	19		—

Supplemental balance sheet information related to leases is as follows (in millions):

	Classification	January 2, 2021		September 30, 2020
Operating Leases
Operating lease right-of-use assets	Other Assets	$	93	$	103
Current operating lease liabilities	Accrued and Other Current Liabilities	22		22
Long-term operating lease liabilities	Other Non-current Liabilities	75		87
Total operating lease liabilities		$	97	$	109
Finance Leases
Finance lease right-of-use assets, net	Property, Plant and Equipment—Net	$	87	$	67
Current finance lease liabilities	Accrued and Other Current Liabilities	2		2
Long-term finance lease liabilities	Other Non-current Liabilities	74		55
Total finance lease liabilities		$	76	$	57

As of January 2, 2021, the Company has the following remaining lease term and weighted average discount rates:

Weighted-average remaining lease term
Operating leases	5.8 years
Finance leases	19.9 years
Weighted-average discount rate
Operating leases	6.2%
Finance leases	7.2%

    Maturities of lease liabilities at January 2, 2021 are as follows (in millions):

	Operating Leases		Finance Leases
2021	$	21	$	7
2022	23		7
2023	18		7
2024	15		7
2025	12		7
Thereafter	28		117
Total future minimum lease payments	117		152
Less: imputed interest	20		76
Present value of lease liabilities reported	$	97	$	76

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COMMITMENTS AND CONTINGENCIES	3 Months Ended
	Jan. 02, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	COMMITMENTS AND CONTINGENCIESOn August 8, 2019, a fire caused significant damage to the Niort, France operating facility of the Leach International Europe subsidiary, which is reported within the Company’s Power & Control segment. The facility as well as certain machinery, equipment and inventory sustained damage. The Company suspended operations at the Niort facility as a result of the fire; however, has transferred certain operations to temporary facilities until operations are fully restored at the rebuilt facility. The new facility was completed in December 2020 and certain production commenced in January 2021. The facility is expected to be fully operational in the second quarter of fiscal 2021.  The Company’s insurance covers damage to the facility, equipment, inventory, and other assets, at replacement cost, as well as business interruption, and recovery-related expenses caused by the fire, subject to a $1 million deductible and certain sub-limits based on the nature of the covered item. Anticipated insurance recoveries related to losses and incremental costs incurred are recognized when receipt is probable. Anticipated insurance recoveries in excess of net book value of the damaged property and inventory will not be recorded until all contingencies relating to the claim have been resolved. As of January 2, 2021, approximately $27 million in insurance proceeds have been received. The recoveries received were previously recorded as an insurance recovery receivable (classified as a component of prepaid expenses and other on the condensed consolidated balance sheets) at the time of loss. The timing of and amount of insurance recoveries for business interruption is not known at this time.

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DISCONTINUED OPERATIONS

3 Months Ended

Jan. 02, 2021

DISCONTINUED OPERATIONS [Abstract]

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS

Prior Year Divestitures

On December 20, 2019, TransDigm completed the divestiture of Souriau-Sunbank to Eaton for approximately $920 million. Souriau-Sunbank was acquired by TransDigm as part of its acquisition of Esterline in March 2019 and was included in TransDigm’s Non-aviation segment. The divestiture represented a strategic shift in TransDigm’s business and, in accordance with U.S. GAAP, qualified as discontinued operations.

Income from discontinued operations, net of tax, for the thirteen week period ended December 28, 2019 was $71 million. This was comprised of $9 million income from Souriau-Sunbank's operations, and a gain on the sale of Souriau-Sunbank of $62 million.

    Operating Results Summary

The following is the summarized operating results for Souriau-Sunbank for the thirteen week period ended December 28, 2019 (in millions):

	Thirteen Week Period Ended
	December 28, 2019
Net sales	$	79
Income from discontinued operations before income taxes	13
Income tax expense	4
Income from discontinued operations, net of tax	9
Gain from sale of discontinued operations, net of tax	62
Income from discontinued operations, net of tax	$	71

Current Year Divestitures

No divestitures occurring in the thirteen week period ended January 2, 2021 met the criteria to qualify as discontinued operations under U.S. GAAP. Refer to Note 3, "Acquisitions and Divestitures," for additional details on the Company's fiscal 2021 divestitures.

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REVENUE Contract Assets and Liabilities (Tables)

3 Months Ended

Jan. 02, 2021

Schedule of Contract Assets and Liabilities [Line Items]

Contract with Customer, Asset and Liability [Table Text Block]

The following table summarizes our contract assets and liabilities balances (in millions):

	January 2, 2021		September 30, 2020		Change
Contract assets, current (1)	$	49	$	36	$	13
Contract assets, non-current (2)	2		6		(4)
Total contract assets	51		42		9
Contract liabilities, current (3)	19		18		1
Contract liabilities, non-current (4)	5		9		(4)
Total contract liabilities	24		27		(3)
Net contract assets	$	27	$	15	$	12

(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.

Accounts Receivable, Allowance for Credit Loss

Allowance for Credit Losses - The Company's allowance for credit losses is the allowance for uncollectible accounts. The allowance for uncollectible accounts reduces the trade accounts receivable balance to the estimated net realizable value equal to the amount that is expected to be collected.

The Company’s method for developing its allowance for credit losses is based on historical write-off experience, the aging of receivables, an assessment of the creditworthiness of customers, economic conditions and other external market information. All provisions for allowances for uncollectible accounts are included in selling and administrative expenses.

The allowance for uncollectible accounts was $41 million and $37 million as of January 2, 2021 and September 30, 2020, respectively. The increase in the allowance for uncollectible accounts in the first quarter of fiscal 2021 is primarily driven by additional collectibility risk assessed on receivables from certain customers that have been significantly adversely impacted by the COVID-19 pandemic. The allowance for uncollectible accounts is assessed individually at each operating unit by the operating unit’s management team.

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EARNINGS PER SHARE (TWO-CLASS METHOD) (Tables)

3 Months Ended

Jan. 02, 2021

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Share

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

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Numerator for (loss) earnings per share:
Income from continuing operations	$	50	$	234
Less: Net income attributable to noncontrolling interests	—		(1)
Net income from continuing operations attributable to TD Group	50		233
Less: Special dividends declared or paid on participating securities, including dividend equivalent payments	(73)		(185)
Income from discontinued operations, net of tax	—		71
Net (loss) income applicable to TD Group common stockholders - basic and diluted	$	(23)	$	119
Denominator for basic and diluted (loss) earnings per share under the two-class method:
Weighted-average common shares outstanding	54.7		53.6
Vested options deemed participating securities	—		3.8
Total shares for basic and diluted (loss) earnings per share	54.7		57.4
(Loss) Earnings per share from continuing operations—basic and diluted	$	(0.42)	$	0.83
Earnings per share from discontinued operations—basic and diluted	—		1.24
(Loss) Earnings per share	$	(0.42)	$	2.07

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INVENTORIES (Tables)

3 Months Ended

Jan. 02, 2021

Inventory Disclosure [Abstract]

Inventories

Inventories consist of the following (in millions):

	January 2, 2021		September 30, 2020
Raw materials and purchased component parts	$	900	$	881
Work-in-progress	360		358
Finished goods	213		222
Total	1,473		1,461
Reserves for excess and obsolete inventory	(189)		(178)
Inventories - Net	$	1,284	$	1,283

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INTANGIBLE ASSETS (Tables)

3 Months Ended

Jan. 02, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets Subject to Amortization

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

	January 2, 2021						September 30, 2020
	Gross Carrying Amount		Accumulated Amortization		Net		Gross Carrying Amount		Accumulated Amortization		Net
Trademarks and trade names	$	963	$	—	$	963	$	958	$	—	$	958
Technology	1,856		613		1,243		1,842		589		1,253
Order backlog	91		91		—		93		93		—
Customer relationships	449		58		391		443		52		391
Other	18		11		7		18		10		8
Total	$	3,377	$	773	$	2,604	$	3,354	$	744	$	2,610

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, 2020 through January 2, 2021 (in millions):

	Power & Control		Airframe		Non- aviation		Total
Balance at September 30, 2020	$	4,141	$	3,647	$	101	$	7,889
Goodwill acquired during the period	4		—		—		4
Reclassification of goodwill to assets held-for-sale (Note 3)	—		—		(8)		(8)
Currency translation adjustments	15		27		—		42
Balance at January 2, 2021	$	4,160	$	3,674	$	93	$	7,927

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DEBT (Tables)

3 Months Ended

Jan. 02, 2021

Debt Disclosure [Abstract]

Schedule of Debt

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

	January 2, 2021
	Gross Amount		Debt Issuance Costs		Original Issue Discount or Premium		Net Amount
Short-term borrowings—trade receivable securitization facility	$	350	$	—	$	—	$	350
Term loans	$	7,429	$	(46)	$	(20)	$	7,363
Revolving credit facility	200		—		—		200
6.50% senior subordinated notes due 2024 (2024 Notes)	1,200		(4)		—		1,196
6.50% senior subordinated notes due 2025 (2025 Notes)	750		(2)		2		750
8.00% senior secured notes due 2025 (2025 Secured Notes)	1,100		(9)		—		1,091
6.375% senior subordinated notes due 2026 (6.375% 2026 Notes)	950		(6)		—		944
6.875% senior subordinated notes due 2026 (6.875% 2026 Notes)	500		(4)		(3)		493
6.25% senior secured notes due 2026 (2026 Secured Notes)	4,400		(53)		5		4,352
7.50% senior subordinated notes due 2027 (7.50% 2027 Notes)	550		(4)		—		546
5.50% senior subordinated notes due 2027 (5.50% 2027 Notes)	2,650		(21)		—		2,629
Government refundable advances	30		—		—		30
Finance lease obligations	76		—		—		76
	19,835		(149)		(16)		19,670
Less: current portion	277		(1)		—		276
Long-term debt	$	19,558	$	(148)	$	(16)	$	19,394

	September 30, 2020
	Gross Amount		Debt Issuance Costs		Original Issue Discount or Premium		Net Amount
Short-term borrowings—trade receivable securitization facility	$	350	$	(1)	$	—	$	349
Term loans	$	7,449	$	(48)	$	(23)	$	7,378
Revolving credit facility	200		—		—		200
2024 Notes	1,200		(5)		—		1,195
2025 Notes	750		(3)		3		750
2025 Secured Notes	1,100		(9)		—		1,091
6.375% 2026 Notes	950		(6)		—		944
6.875% 2026 Notes	500		(4)		(3)		493
2026 Secured Notes	4,400		(55)		5		4,350
7.50% 2027 Notes	550		(5)		—		545
5.50 % 2027 Notes	2,650		(21)		—		2,629
Government refundable advances	28		—		—		28
Finance lease obligations	57		—		—		57
	19,834		(156)		(18)		19,660
Less: current portion	277		(1)		—		276
Long-term debt	$	19,557	$	(155)	$	(18)	$	19,384

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FAIR VALUE MEASUREMENTS (Tables)

3 Months Ended

Jan. 02, 2021

Fair Value Disclosures [Abstract]

Carrying Amounts and Fair Values of Financial Instruments

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

		January 2, 2021				September 30, 2020
	Level	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Assets:
Cash and cash equivalents	1	$	4,907	$	4,907	$	4,717	$	4,717
Foreign currency forward exchange contracts and other (1)	2	3		3		—		—
Liabilities:
Interest rate swap agreements (2)	2	66		66		56		56
Interest rate swap agreements (3)	2	302		302		328		328
Foreign currency forward exchange contracts and other (2)	2	—		—		1		1
Short-term borrowings - trade receivable securitization facility (4)	2	350		350		349		349
Long-term debt, including current portion:
Term loans (4)	2	7,363		7,223		7,378		7,004
Revolving credit facility (4)	2	200		200		200		200
2024 Notes (4)	1	1,196		1,218		1,195		1,194
2025 Notes (4)	1	750		772		750		743
2025 Secured Notes (4)	1	1,091		1,209		1,091		1,194
6.375% 2026 Notes (4)	1	944		983		944		948
6.875% 2026 Notes (4)	1	493		526		493		500
2026 Secured Notes (4)	1	4,352		4,686		4,350		4,604
7.50% 2027 Notes (4)	1	546		587		545		569
5.50% 2027 Notes (4)	1	2,629		2,763		2,629		2,554
Government refundable advances	2	30		30		28		28
Finance lease obligations	2	76		76		57		57

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

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

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

(4)The carrying amount of the debt instrument is presented net of debt issuance costs, premium and discount. Refer to Note 9, "Debt," for gross carrying amounts.

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DERIVATIVES AND HEDGING ACTIVITIES (Tables)

3 Months Ended

Jan. 02, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

The following table summarizes the Company's interest rate swap agreements:

Aggregate Notional Amount (in millions)	Start Date	End Date	Related Term Loans	Conversion of Related Variable Rate Debt to Fixed Rate of:
$500	6/29/2018	3/31/2025	Tranche E	5.25% (3.0% plus the 2.25% margin percentage)
$750	6/30/2020	6/30/2022	Tranche E	4.75% (2.5% plus the 2.25% margin percentage)
$1,500	6/30/2022	3/31/2025	Tranche E	5.35% (3.1% plus the 2.25% margin percentage)
$1,000	6/28/2019	12/9/2025	Tranche F	4.05% (1.8% plus the 2.25% margin percentage)
$1,400	6/30/2021	12/9/2025	Tranche F	5.25% (3.0% plus the 2.25% margin percentage)
$500	12/30/2016	12/31/2021	Tranche G	4.15% (1.9% plus the 2.25% margin percentage)
$400	9/30/2017	9/30/2022	Tranche G	4.15% (1.9% plus the 2.25% margin percentage)
$900	12/31/2021	6/28/2024	Tranche G	5.35% (3.1% plus the 2.25% margin percentage)
$400	9/30/2022	6/28/2024	Tranche G	5.25% (3.0% plus the 2.25% margin percentage)

The following table summarizes the Company's interest rate cap agreements:

Aggregate Notional Amount (in millions)	Start Date	End Date	Related Term Loans	Offsets Variable Rate Debt Attributable to Fluctuations Above:
$750	6/30/2020	6/30/2022	Tranche E	Three month LIBOR rate of 2.5%
$400	6/30/2016	6/30/2021	Tranche F	Three month LIBOR rate of 2.0%
$400	12/30/2016	12/31/2021	Tranche G	Three month LIBOR rate of 2.5%

Schedule of Interest Rate Derivatives [Table Text Block]

	January 2, 2021				September 30, 2020
	Asset		Liability		Asset		Liability
Interest rate swap agreements (1)	$	—	$	(368)	$	—	$	(384)

(1)Refer to Note 11, "Fair Value Measurements," for the condensed consolidated balance sheet classification of our interest rate swap agreements.

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SEGMENTS (Tables)

3 Months Ended

Jan. 02, 2021

Segment Reporting [Abstract]

Net Sales by Reportable Segments

The following table presents net sales by reportable segment (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Net sales to external customers
Power & Control
Commercial OEM	$	126	$	184
Commercial Aftermarket	132		220
Defense	343		348
Total Power & Control	601		752
Airframe
Commercial OEM	142		230
Commercial Aftermarket	112		245
Defense	210		199
Total Airframe	464		674
Total Non-aviation	43		39
	$	1,108	$	1,465

EBITDA Defined by Segment to Consolidated Income Before Taxes

The following table reconciles EBITDA As Defined by segment to consolidated income from continuing operations before income taxes (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
EBITDA As Defined
Power & Control	$	304	$	385
Airframe	177		305
Non-aviation	15		13
Total segment EBITDA As Defined	496		703
Less: Unallocated corporate expenses	22		22
Total Company EBITDA As Defined	474		681
Depreciation and amortization expense	58		69
Interest expense, net	267		248
Acquisition-related costs	4		7
Stock compensation expense	49		26
Refinancing costs	—		22
COVID-19 pandemic restructuring costs	21		—
Other, net	22		16
Income from continuing operations before income taxes	$	53	$	293

Total Assets by Segment

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

	January 2, 2021		September 30, 2020
Total assets
Power & Control	$	7,022	$	7,005
Airframe	6,603		6,575
Non-aviation	241		251
Corporate	4,691		4,564
	$	18,557	$	18,395

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RETIREMENT BENEFITS (Tables)

3 Months Ended

Jan. 02, 2021

Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]

Schedule of Net Benefit Costs [Table Text Block]

The components of net periodic pension cost for the Company's defined benefit plans were as follows (in millions):

	Thirteen Week Periods Ended
	January 2, 2021				December 28, 2019
	U.S. Pension Plans		Non-U.S. Pension Plans		U.S. Pension Plans		Non-U.S. Pension Plans
Service cost	$	2	$	1	$	2	$	1
Interest cost	2		1		3		1
Expected return on plan assets	(5)		(2)		(5)		(1)
Amortization	—		1		—		—
Net periodic pension (benefit) cost	$	(1)	$	1	$	—	$	1

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ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables)

3 Months Ended

Jan. 02, 2021

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Loss

The following table presents the components of accumulated other comprehensive loss, net of taxes, for the thirteen week period ended January 2, 2021 (in millions):

	Unrealized gains on derivatives designated and qualifying as cash flow hedges (1)		Defined benefit pension plan activity (2)		Currency translation adjustment		Total
Balance at September 30, 2020	$	(302)	$	(8)	$	(91)	$	(401)
Current-period other comprehensive income	13		—		111		124
Balance at January 2, 2021	$	(289)	$	(8)	$	20	$	(277)

(1)Unrealized gains represents derivative instruments, net of taxes of $(5.0) million and $(9.8) million for the thirteen week periods ended January 2, 2021 and December 28, 2019, respectively.

(2)There were no material pension liability adjustments, net of taxes, for the thirteen week periods ended January 2, 2021 and December 28, 2019

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LEASES (Tables)

3 Months Ended

Jan. 02, 2021

Leases [Abstract]

Lease, Cost [Table Text Block]

The components of lease expense for the are as follows (in millions):

		Thirteen Week Periods Ended
	Classification	January 2, 2021		December 28, 2019
Operating lease cost	Cost of Sales or Selling and Administrative Expenses	$	7	$	7
Finance lease cost
Amortization of leased assets	Cost of Sales	$	1	$	1
Interest on lease liabilities	Interest Expense - Net	1		1
Total lease cost		$	9	$	9

Schedule of Cash Flow, Supplemental Disclosures [Table Text Block]

Supplemental cash flow information related to leases is as follows (in millions):

	Thirteen Week Periods Ended
	January 2, 2021		December 28, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	7	$	7
Operating cash outflows from finance leases	1		1
Lease assets obtained in exchange for new lease obligations:
Operating leases	$	4	$	10
Finance leases	19		—

Leases, Supplemental Balance Sheet Information [Table Text Block]

Supplemental balance sheet information related to leases is as follows (in millions):

	Classification	January 2, 2021		September 30, 2020
Operating Leases
Operating lease right-of-use assets	Other Assets	$	93	$	103
Current operating lease liabilities	Accrued and Other Current Liabilities	22		22
Long-term operating lease liabilities	Other Non-current Liabilities	75		87
Total operating lease liabilities		$	97	$	109
Finance Leases
Finance lease right-of-use assets, net	Property, Plant and Equipment—Net	$	87	$	67
Current finance lease liabilities	Accrued and Other Current Liabilities	2		2
Long-term finance lease liabilities	Other Non-current Liabilities	74		55
Total finance lease liabilities		$	76	$	57

As of January 2, 2021, the Company has the following remaining lease term and weighted average discount rates:

Weighted-average remaining lease term
Operating leases	5.8 years
Finance leases	19.9 years
Weighted-average discount rate
Operating leases	6.2%
Finance leases	7.2%

Lessee, Operating Lease, Liability, Maturity [Table Text Block]

Maturities of lease liabilities at January 2, 2021 are as follows (in millions):

	Operating Leases		Finance Leases
2021	$	21	$	7
2022	23		7
2023	18		7
2024	15		7
2025	12		7
Thereafter	28		117
Total future minimum lease payments	117		152
Less: imputed interest	20		76
Present value of lease liabilities reported	$	97	$	76

Finance Lease, Liability, Maturity [Table Text Block]

Maturities of lease liabilities at January 2, 2021 are as follows (in millions):

	Operating Leases		Finance Leases
2021	$	21	$	7
2022	23		7
2023	18		7
2024	15		7
2025	12		7
Thereafter	28		117
Total future minimum lease payments	117		152
Less: imputed interest	20		76
Present value of lease liabilities reported	$	97	$	76

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DISCONTINUED OPERATIONS (Tables)

3 Months Ended

Jan. 02, 2021

Souriau Sunbank [Member]

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

Disposal Groups, Including Discontinued Operations [Table Text Block]

	Thirteen Week Period Ended
	December 28, 2019
Net sales	$	79
Income from discontinued operations before income taxes	13
Income tax expense	4
Income from discontinued operations, net of tax	9
Gain from sale of discontinued operations, net of tax	62
Income from discontinued operations, net of tax	$	71

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DESCRIPTION OF THE BUSINESS AND IMPACT OF COVID-19 PANDEMIC - Narratives (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Sep. 30, 2020
Transdigm Inc [Member]
Accounting Policies [Abstract]
Percentage of ownership in subsidiary	100.00%
Restructuring Cost and Reserve [Line Items]
Percentage of ownership in subsidiary	100.00%
COVID-19 [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ 20
Restructuring and Related Cost, Cost Incurred to Date	27	$ 13
COVID-19 [Member] | Unusual or Infrequent Item, or Both [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	1
COVID-19 [Member] | Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	13
COVID-19 [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ 7

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ACQUISITIONS AND DIVESTITURES - Narratives (Details) - USD ($) $ in Millions			3 Months Ended
	Nov. 17, 2020	Dec. 20, 2019	Jan. 02, 2021
Cobham [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross			$ 959
Souriau Sunbank [Member]
Business Acquisition [Line Items]
Divestiture, Sale Price		$ 920
Racal [Member]
Business Acquisition [Line Items]
Divestiture, Sale Price			$ 20
Avista [Member]
Business Acquisition [Line Items]
Divestiture, Sale Price	$ 8

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REVENUE - Contract Assets and Liabilities (Details) - USD ($) $ in Millions		3 Months Ended
		Jan. 02, 2021	Sep. 30, 2020
Schedule of Contract Assets and Liabilities [Line Items]
Contract with Customer, Asset, Net, Current		$ 49	$ 36	[1]
Contract with Customer, Asset, Current, Increase or Decrease	[1]	13
Contract with Customer, Asset, Net, Noncurrent		2	6	[2]
Contract with customer, Asset, Non-current, Increase or Decrease	[2]	(4)
Contract with Customer, Asset, after Allowance for Credit Loss		51	42
Contract assets, Increase or Decrease		9
Contract with Customer, Liability, Current		19	18	[3]
Contract liabilities, Current, Increase or Decrease	[3]	1
Contract with Customer, Liability, Noncurrent		5	9	[4]
Contract liabilities, Non-current, Increase or Decrease	[4]	(4)
Contract with Customer, Liability		24	27
Contract Liabilities, Increase or Decrease		(3)
Net Contract Asset		27	$ 15
Net Contract Asset, Increase or Decrease		$ 12

[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.

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REVENUE - Narratives (Details) - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Accounts Receivable, Allowance for Credit Loss, Current	$ 41	$ 37

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EARNINGS PER SHARE (TWO-CLASS METHOD) - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Earnings Per Share [Abstract]
Income from continuing operations	$ 50	$ 234
Net Income (Loss) Attributable to Noncontrolling Interest	0	1
Net income from continuing operations attributable to TD Group	50	233
Numerator for (loss) earnings per share:
Less: Special dividends declared or paid on participating securities, including dividend equivalent payments	(73)	(185)
Net income from discontinued operations	0	(71)
Net (loss) income applicable to TD Group common stockholders - basic and diluted	$ (23)	$ 119
Denominator for basic and diluted earnings per share under the two-class method, in shares:
Weighted-average common shares outstanding	54.7	53.6
Vested options deemed participating securities	0.0	3.8
Basic and diluted (in shares)	54.7	57.4
(Loss) Earnings per share from continuing operations—basic and diluted	$ (0.42)	$ 0.83
Earnings per share from discontinued operations—basic and diluted	0	1.24
Basic and diluted earnings per share (in dollars per share)	$ (0.42)	$ 2.07

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INVENTORIES - Schedule of Inventory (Details) - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
Inventory Disclosure [Abstract]
Raw materials and purchased component parts	$ 900	$ 881
Work-in-progress	360	358
Finished goods	213	222
Total	1,473	1,461
Reserves for excess and obsolete inventory	(189)	(178)
Inventories - Net	$ 1,284	$ 1,283

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INTANGIBLE ASSETS - Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
Finite-Lived Intangible Assets [Line Items]
Intangible Assets, Gross (Excluding Goodwill)	$ 3,377	$ 3,354
Intangible Assets, Accumulated Amortization	773	744
Total	2,604	2,610
Technology
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,856	1,842
Accumulated Amortization	613	589
Net	1,243	1,253
Order backlog
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	91	93
Accumulated Amortization	91	93
Net	0	0
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	449	443
Accumulated Amortization	58	52
Net	391	391
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	18	18
Accumulated Amortization	11	10
Net	7	8
Trademarks and trade names
Finite-Lived Intangible Assets [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill), Gross	963	958
Indefinite-Lived Intangible Assets, Accumulated Amortization	0	0
Intangible Assets (Excluding Goodwill), Net	$ 963	$ 958

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INTANGIBLE ASSETS - Summary of changes in carrying value of Goodwill (Details) $ in Millions	3 Months Ended
	Jan. 02, 2021 USD ($)
Goodwill [Roll Forward]
Balance at September 30, 2020	$ 7,889
Goodwill, Acquired During Period	4
Disposal Group, Including Discontinued Operation, Goodwill	(8)
Currency translation adjustment	42
Balance at January 2, 2021	7,927
Power & Control
Goodwill [Roll Forward]
Balance at September 30, 2020	4,141
Goodwill, Acquired During Period	4
Disposal Group, Including Discontinued Operation, Goodwill	0
Currency translation adjustment	15
Balance at January 2, 2021	4,160
Airframe
Goodwill [Roll Forward]
Balance at September 30, 2020	3,647
Goodwill, Acquired During Period	0
Disposal Group, Including Discontinued Operation, Goodwill	0
Currency translation adjustment	27
Balance at January 2, 2021	3,674
Non- aviation
Goodwill [Roll Forward]
Balance at September 30, 2020	101
Goodwill, Acquired During Period	0
Disposal Group, Including Discontinued Operation, Goodwill	(8)
Currency translation adjustment	0
Balance at January 2, 2021	$ 93

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INTANGIBLE ASSETS - Narratives (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Finite-Lived Intangible Assets [Line Items]
AMORTIZATION OF INTANGIBLE ASSETS	$ 29	$ 40
Estimated Amortization Expense, 2021	115
Estimated Amortization Expense, 2022	114
Estimated Amortization Expense, 2026	$ 109

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DEBT - Schedule of Debt (Detail) - USD ($) $ in Millions		Jan. 02, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Gross Amount		$ 19,835.0	$ 19,834.0
Debt Issuance Costs		(149.0)	(156.0)
Debt Instrument, Unamortized Discount (Premium), Net		(16.0)	(18.0)
Short-term borrowings—trade receivable securitization facility		350.0	349.0
Long-term Debt		19,670.0	19,660.0
Current portion of long-term debt		276.0	276.0
Long-term Debt, Excluding Current Maturities, Gross		19,558.0	19,557.0
Deferred Finance Costs, Excluding Current Maturities		(148.0)	(155.0)
Debt Instrument, Unamortized Discount, Excluding Current Maturities		(16.0)	(18.0)
Long-term debt		19,394.0	19,384.0
Term loans
Debt Instrument [Line Items]
Gross Amount		7,429.0	7,449.0
Debt Issuance Costs		(46.0)	(48.0)
Debt Instrument, Unamortized Discount (Premium), Net		(20.0)	(23.0)
Long-term Debt	[1]	7,363.0	7,378.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Gross Amount		200.0	200.0
Debt Issuance Costs		0.0	0.0
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Long-term Debt		200.0	200.0
Senior Subordinated Notes | 6.50% Senior Subordinated Notes Due 2024 [Member]
Debt Instrument [Line Items]
Gross Amount		1,200.0	1,200.0
Debt Issuance Costs		(4.0)	(5.0)
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Long-term Debt	[1]	1,196.0	1,195.0
Senior Subordinated Notes | Senior Subordinated Notes Due 2025 6.50% [Member]
Debt Instrument [Line Items]
Gross Amount		750.0	750.0
Debt Issuance Costs		(2.0)	(3.0)
Debt Instrument, Unamortized Discount (Premium), Net		2.0	3.0
Long-term Debt		750.0	750.0
Senior Subordinated Notes | Senior Secured Notes Due 2025 8.00% [Member]
Debt Instrument [Line Items]
Long-term Debt	[1]	750.0	750.0
Senior Subordinated Notes | Senior Subordinated Notes Due 2026 6.375% [Member]
Debt Instrument [Line Items]
Gross Amount		950.0	950.0
Debt Issuance Costs		(6.0)	(6.0)
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Long-term Debt	[1]	944.0	944.0
Senior Subordinated Notes | Senior subordinated notes due 2026 6.875% [Member]
Debt Instrument [Line Items]
Gross Amount		500.0	500.0
Debt Issuance Costs		(4.0)	(4.0)
Debt Instrument, Unamortized Discount (Premium), Net		(3.0)	(3.0)
Long-term Debt	[1]	493.0	493.0
Senior Subordinated Notes | Senior Subordinated Notes $550M Due 2027 7.50% [Member]
Debt Instrument [Line Items]
Gross Amount		550.0	550.0
Debt Issuance Costs		(4.0)	(5.0)
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Long-term Debt	[1]	546.0	545.0
Senior Subordinated Notes | Senior Subordinated Notes $2650M Due 2027 5.50% [Member]
Debt Instrument [Line Items]
Gross Amount		2,650.0	2,650.0
Debt Issuance Costs		(21.0)	(21.0)
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Long-term Debt	[1]	2,629.0	2,629.0
Senior Notes | Senior Secured Notes Due 2025 8.00% [Member]
Debt Instrument [Line Items]
Gross Amount		1,100.0	1,100.0
Debt Issuance Costs		(9.0)	(9.0)
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Long-term Debt		1,091.0	1,091.0
Senior Notes | Senior Secured Notes $4.4B Due 2026 6.25% [Member]
Debt Instrument [Line Items]
Gross Amount		4,400.0	4,400.0
Debt Issuance Costs		(53.0)	(55.0)
Debt Instrument, Unamortized Discount (Premium), Net		5.0	5.0
Long-term Debt		4,352.0	4,350.0
Government Refundable Advances [Member]
Debt Instrument [Line Items]
Debt Issuance Costs		0.0
Debt Instrument, Unamortized Discount (Premium), Net		0.0
Long-term Debt		30.0	28.0
Government refundable advances		29.8	28.4
Government Refundable Advances [Member] | Government Refundable Advances [Member]
Debt Instrument [Line Items]
Debt Issuance Costs			0.0
Debt Instrument, Unamortized Discount (Premium), Net			0.0
Government refundable advances			28.0
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Debt Issuance Costs		0.0
Debt Instrument, Unamortized Discount (Premium), Net		0.0
Long-term Debt		76.0	57.0
Capital Lease Obligations		75.6	56.8
Capital Lease Obligations [Member] | Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Debt Issuance Costs			0.0
Debt Instrument, Unamortized Discount (Premium), Net			0.0
Capital Lease Obligations			57.0
Less: current portion
Debt Instrument [Line Items]
Debt Issuance Costs		(1.0)	(1.0)
Debt Instrument, Unamortized Discount (Premium), Net			0.0
Debt Instrument, Unamortized Discount		0.0
Long-term Debt, Current Maturities, Gross		277.0	277.0
Current portion of long-term debt		276.0	276.0
Asset-backed Securities
Debt Instrument [Line Items]
Debt Issuance Costs		0.0	(1.0)
Debt Instrument, Unamortized Discount (Premium), Net		0.0	0.0
Short-term borrowings—trade receivable securitization facility, Gross		350.0	350.0
Short-term borrowings—trade receivable securitization facility	[1]	$ 350.0	$ 349.0

[1] The carrying amount of the debt instrument is presented net of debt issuance costs, premium and discount. Refer to Note 9, "Debt," for gross carrying amounts.

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DEBT - Narratives (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Sep. 30, 2020
Debt Instrument [Line Items]
Interest Payable, Current	$ 185.0	$ 177.6
Gross Amount	19,835.0	19,834.0
Term loans
Debt Instrument [Line Items]
Gross Amount	7,429.0	7,449.0
Senior Subordinated Notes | 4.625% Senior Subordinated Notes Due 2029 [Member]
Debt Instrument [Line Items]
Gross Amount	$ 1,200.0
Debt Instrument, Redemption Price, Percentage	100.00%
Interest rate	4.625%
Government Refundable Advances [Member]
Debt Instrument [Line Items]
Government refundable advances	$ 29.8	28.4
Capital Lease Obligations [Member]
Debt Instrument [Line Items]
Capital Lease Obligations	$ 75.6	$ 56.8

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INCOME TAXES - Narratives (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Sep. 30, 2020
Effective income tax rate	5.50%	20.10%
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%
Unrecognized tax benefits	$ 42.2		$ 40.9
Tax rate effect	37.0		$ 35.7
Reduction in tax position in next 12 months	$ 22.0

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FAIR VALUE MEASUREMENTS - Carrying Amounts and Fair Values of Financial Instruments (Detail) - USD ($) $ in Millions		Jan. 02, 2021	Sep. 30, 2020	Dec. 28, 2019	Sep. 30, 2019
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents		$ 4,907	$ 4,717	$ 4,194	$ 1,467
Short-term borrowings—trade receivable securitization facility		350	349
Long-term Debt		19,670	19,660
Prepaid Expenses and Other Current Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset		3	0
Accrued Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap agreements	[1]	66	56
Foreign Currency Contract, Liability	[1]	0	1
Other Noncurrent Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap agreements	[2]	302	328
Term loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	7,363	7,378
Government Refundable Advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt		30	28
Capital Lease Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt		76	57
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents, Fair Value		4,907	4,717
Level 2 | Prepaid Expenses and Other Current Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Foreign Currency Contract, Asset		3	0
Level 2 | Accrued Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap agreements, Fair Value	[1]	66	56
Foreign Currency Contract, Liability	[1]	0	1
Level 2 | Other Noncurrent Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap agreements, Fair Value	[2]	302	328
Level 2 | Term loans
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	7,223	7,004
Level 2 | Government Refundable Advances [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value		30	28
Level 2 | Capital Lease Obligations [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value		76	57
6.50% Senior Subordinated Notes Due 2024 [Member] | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	1,196	1,195
6.50% Senior Subordinated Notes Due 2024 [Member] | Level 1 | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	1,218	1,194
Senior Secured Notes Due 2025 8.00% [Member] | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	750	750
Senior Secured Notes Due 2025 8.00% [Member] | Level 1 | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	772	743
Senior Secured Notes $1.1B due 2025 8% [Member] | Secured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt		1,091	1,091
Senior Secured Notes $1.1B due 2025 8% [Member] | Level 1 | Secured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value		1,209	1,194
Senior Subordinated Notes Due 2026 6.375% [Member] | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	944	944
Senior Subordinated Notes Due 2026 6.375% [Member] | Level 1 | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	983	948
Senior subordinated notes due 2026 6.875% [Member] | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	493	493
Senior subordinated notes due 2026 6.875% [Member] | Level 1 | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	526	500
Senior Secured Notes $4.4B Due 2026 6.25% [Member] | Secured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	4,352	4,350
Senior Secured Notes $4.4B Due 2026 6.25% [Member] | Level 1 | Secured Debt [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	4,686	4,604
Senior Subordinated Notes $550M Due 2027 7.50% [Member] | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	546	545
Senior Subordinated Notes $550M Due 2027 7.50% [Member] | Level 1 | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	587	569
Senior Subordinated Notes $2650M Due 2027 5.50% [Member] | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	2,629	2,629
Senior Subordinated Notes $2650M Due 2027 5.50% [Member] | Level 1 | Senior Subordinated Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	2,763	2,554
Asset-backed Securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings—trade receivable securitization facility	[3]	350	349
Asset-backed Securities | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term borrowings - trade receivable securitization facility, Fair Value	[3]	350	349
Revolving Credit Facility [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term Debt	[3]	200	200
Revolving Credit Facility [Member] | Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion, Fair Value	[3]	$ 200	$ 200

[1] Included in accrued and other current liabilities on the condensed consolidated balance sheets.

[2] Included in other non-current liabilities on the condensed consolidated balance sheets.

[3] The carrying amount of the debt instrument is presented net of debt issuance costs, premium and discount. Refer to Note 9, "Debt," for gross carrying amounts.

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DERIVATIVES AND HEDGING ACTIVITIES - Schedule of Notional Amounts of Outstanding Derivatives (Details) $ in Millions	Jan. 02, 2021 USD ($)
Tranche F | Interest rate swap June 28, 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 1,000
Tranche F | Interest rate swap beginning June 30, 2021 [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,400
Tranche F | Interest rate cap agreements beginning June 30, 2016 [Member]
Derivative [Line Items]
Derivative, Notional Amount	400
Tranche E | Interest rate swap beginning June 29, 2018 [Member]
Derivative [Line Items]
Derivative, Notional Amount	500
Tranche E | Interest rate swap beginning June 30, 2020 [Member]
Derivative [Line Items]
Derivative, Notional Amount	750
Tranche E | Interest rate swap beginning June 30, 2022 [Member]
Derivative [Line Items]
Derivative, Notional Amount	1,500
Tranche E | Interest rate cap beginning June 30, 2020 [Member]
Derivative [Line Items]
Derivative, Notional Amount	750
Tranche G [Member] | Interest rate swap beginning December 30, 2016
Derivative [Line Items]
Derivative, Notional Amount	500
Tranche G [Member] | Interest rate swap beginning September 30, 2017 [Member]
Derivative [Line Items]
Derivative, Notional Amount	400
Tranche G [Member] | Interest rate swap beginning December 31, 2021 [Member]
Derivative [Line Items]
Derivative, Notional Amount	900
Tranche G [Member] | Interest rate swap beginning September 30, 2022 [Member]
Derivative [Line Items]
Derivative, Notional Amount	400
Tranche G [Member] | Interest rate cap beginning December 30, 2016
Derivative [Line Items]
Derivative, Notional Amount	$ 400

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DERIVATIVES AND HEDGING ACTIVITIES - Schedule of Interest Rate Derivatives (Details) - Interest Rate Swap - USD ($) $ in Millions		Jan. 02, 2021	Sep. 30, 2020
Derivative [Line Items]
Derivative Asset, Fair Value, Gross Asset	[1]	$ 0	$ 0
Derivative Liability, Fair Value, Gross Liability	[1]	$ 368	$ 384

[1] Refer to Note 11, "Fair Value Measurements," for the condensed consolidated balance sheet classification of our interest rate swap agreements.

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DERIVATIVES AND HEDGING ACTIVITIES - Narratives (Details) $ in Millions	3 Months Ended
	Jan. 02, 2021 USD ($)
Interest Rate Swap and Cap
Derivative [Line Items]
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimate of Time to Transfer	12 months
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Net Amount to be Transferred	$ 13.7
Foreign Exchange Forward [Member]
Derivative [Line Items]
Derivative, Notional Amount	123.6
Derivative Instruments, Gain (Loss) Reclassification from Accumulated OCI to Income, Estimated Gross Amount to be Transferred	$ 5.8

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SEGMENTS - Narratives (Details)	3 Months Ended
	Jan. 02, 2021 Segment
Segment Reporting [Abstract]
Number of reporting segments	3

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SEGMENTS - Net Sales by Reportable Segments (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Segment Reporting Information [Line Items]
NET SALES	$ 1,108	$ 1,465
Operating Segments | Power & Control
Segment Reporting Information [Line Items]
NET SALES	601	752
Operating Segments | Airframe
Segment Reporting Information [Line Items]
NET SALES	464	674
Operating Segments | Non- aviation
Segment Reporting Information [Line Items]
NET SALES	43	39
Commercial OEM [Member] | Operating Segments | Power & Control
Segment Reporting Information [Line Items]
NET SALES	126	184
Commercial OEM [Member] | Operating Segments | Airframe
Segment Reporting Information [Line Items]
NET SALES	142	230
Commercial Aftermarket [Member] | Operating Segments | Power & Control
Segment Reporting Information [Line Items]
NET SALES	132	220
Commercial Aftermarket [Member] | Operating Segments | Airframe
Segment Reporting Information [Line Items]
NET SALES	112	245
Defense [Member] | Operating Segments | Power & Control
Segment Reporting Information [Line Items]
NET SALES	343	348
Defense [Member] | Operating Segments | Airframe
Segment Reporting Information [Line Items]
NET SALES	$ 210	$ 199

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SEGMENTS - EBITDA Defined by Segment to Consolidated Income Before Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
EBITDA As Defined	$ 474	$ 681
Interest expense, net	267	248
Stock compensation expense	49	26
Refinancing costs	0	22
Income from continuing operations before income taxes	53	293
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
EBITDA As Defined	496	703
Operating Segments | Power & Control
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
EBITDA As Defined	304	385
Operating Segments | Airframe
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
EBITDA As Defined	177	305
Operating Segments | Non- aviation
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
EBITDA As Defined	15	13
Corporate, Non-Segment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
EBITDA As Defined	22	22
Segment Reconciling Items
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Depreciation and amortization expense	58	69
Interest expense, net	(267)	(248)
Acquisition-related costs	4	7
Stock compensation expense	49	26
Refinancing costs	0	22
COVID-19 pandemic restructuring costs	21	0
Other, net	$ 22	$ 16

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SEGMENTS - Total Assets by Segment (Details) - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 18,557	$ 18,395
Operating Segments | Power & Control
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	7,022	7,005
Operating Segments | Airframe
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	6,603	6,575
Operating Segments | Non- aviation
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	241	251
Corporate, Non-Segment
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 4,691	$ 4,564

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RETIREMENT BENEFITS Tables (Details) - Pension Plan [Member] - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
UNITED STATES
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost	$ 2	$ 2
Defined Benefit Plan, Interest Cost	2	3
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(5)	(5)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	(1)	0
Foreign Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost	1	1
Defined Benefit Plan, Interest Cost	1	1
Defined Benefit Plan, Expected Return (Loss) on Plan Assets	(2)	(1)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	1	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ 1	$ 1

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ACCUMULATED OTHER COMPREHENSIVE LOSS - Narratives (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive Loss, Derivatives Qualifying as Hedges, Tax	$ (5.0)	$ (9.8)

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ACCUMULATED OTHER COMPREHENSIVE LOSS - Schedule of Accumulated Other Comprehensive Loss (Details) $ in Millions	3 Months Ended
	Jan. 02, 2021 USD ($)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	$ (401)
Current-period other comprehensive income	124
Balance at end of period	(277)
Unrealized gains on derivatives designated and qualifying as cash flow hedges (1)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(302)	[1]
Current-period other comprehensive income	13	[1]
Balance at end of period	(289)	[1]
Defined benefit pension plan activity (2)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(8)	[2]
Current-period other comprehensive income	0	[2]
Balance at end of period	(8)	[2]
Currency translation adjustment
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance at beginning of period	(91)
Current-period other comprehensive income	111
Balance at end of period	$ 20

[1] Unrealized gains represents derivative instruments, net of taxes of $(5.0) million and $(9.8) million for the thirteen week periods ended January 2, 2021 and December 28, 2019, respectively

[2] There were no material pension liability adjustments, net of taxes, for the thirteen week periods ended January 2, 2021 and December 28, 2019.

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LEASES Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Lessee, Lease, Description [Line Items]
Lease, Cost	$ 9	$ 9
Operating Expense [Member]
Leases [Abstract]
Operating Lease, Cost	7	7
Lessee, Lease, Description [Line Items]
Operating Lease, Cost	7	7
Cost of Sales [Member]
Leases [Abstract]
Finance Lease, Right-of-Use Asset, Amortization	1	1
Lessee, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset, Amortization	1	1
Interest Expense [Member]
Leases [Abstract]
Finance Lease, Interest Expense	1	1
Lessee, Lease, Description [Line Items]
Finance Lease, Interest Expense	$ 1	$ 1

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LEASES Supplemental Cash Flow Information Related To Leases (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Leases [Abstract]
Operating Lease, Payments	$ 7	$ 7
Finance Lease, Principal Payments	1	1
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability	4	10
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability	$ 19	$ 0

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LEASES Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
Leases [Abstract]
Operating Lease, Liability	$ 97	$ 109
Finance Lease, Liability	$ 76	57
Operating Lease, Weighted Average Remaining Lease Term	5 years 9 months 18 days
Finance Lease, Weighted Average Remaining Lease Term	19 years 10 months 24 days
Operating Lease, Weighted Average Discount Rate, Percent	6.20%
Finance Lease, Weighted Average Discount Rate, Percent	7.20%
Other Assets
Leases [Abstract]
Operating Lease, Right-of-Use Asset	$ 93	103
Lessee, Lease, Description [Line Items]
Operating Lease, Right-of-Use Asset	93	103
Accrued Liabilities
Leases [Abstract]
Operating Lease, Liability, Current	22	22
Finance Lease, Liability, Current	2	2
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Current	22	22
Finance Lease, Liability, Current	2	2
Other Noncurrent Liabilities
Leases [Abstract]
Operating Lease, Liability, Noncurrent	75	87
Finance Lease, Liability, Noncurrent	74	55
Lessee, Lease, Description [Line Items]
Operating Lease, Liability, Noncurrent	75	87
Finance Lease, Liability, Noncurrent	74	55
Property, Plant and Equipment [Member]
Leases [Abstract]
Finance Lease, Right-of-Use Asset	87	67
Lessee, Lease, Description [Line Items]
Finance Lease, Right-of-Use Asset	$ 87	$ 67

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LEASES Maturities of Lease Liabilities Operating and Financing (Details) - USD ($) $ in Millions	Jan. 02, 2021	Sep. 30, 2020
Leases [Abstract]
Operating Leases, Future Minimum Payments Due, Next Twelve Months	$ 21
Capital Leases, Future Minimum Payments Due, Next Twelve Months	7
Finance Lease, Liability, to be Paid, Year One	7
Lessee, Operating Lease, Liability, to be Paid, Year One	23
Operating Leases, Future Minimum Payments, Due in Two Years	18
Capital Leases, Future Minimum Payments Due in Two Years	7
Operating Leases, Future Minimum Payments, Due in Three Years	15
Capital Leases, Future Minimum Payments Due in Three Years	7
Operating Leases, Future Minimum Payments, Due Thereafter	28
Capital Leases, Future Minimum Payments Due Thereafter	117
Operating Leases, Future Minimum Payments Due	117
Capital Leases, Future Minimum Payments Due	152
Lessee, Operating Lease, Liability, Undiscounted Excess Amount	20
Capital Leases, Future Minimum Payments, Interest Included in Payments	76
Operating Lease, Liability	97	$ 109
Capital Leases, Future Minimum Payments, Present Value of Net Minimum Payments	76	$ 57
Lessee, Lease, Description [Line Items]
Operating Leases, Future Minimum Payments, Due in Four Years	12
Capital Leases, Future Minimum Payments Due in Four Years	$ 7

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COMMITMENTS AND CONTINGENCIES (Details) $ in Millions	3 Months Ended
	Jan. 02, 2021 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Insurance deductible	$ 1
Insurance Recoveries	$ 27

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DISCONTINUED OPERATIONS Schedule of Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues	$ 1,108	$ 1,465
Income (loss) from discontinued operations before gain or loss on disposal net of tax		9
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		62
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	$ 0	71
Souriau Sunbank [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenues		79
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax		13
Discontinued Operation, Tax Effect of Discontinued Operation		4
Income (loss) from discontinued operations before gain or loss on disposal net of tax		9
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		62
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent		$ 71

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DISCONTINUED OPERATIONS Narrative (Details) - USD ($) $ in Millions		3 Months Ended
	Dec. 20, 2019	Jan. 02, 2021	Dec. 28, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (loss) from discontinued operations before gain or loss on disposal net of tax			$ 9
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			62
INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX		$ 0	71
Souriau Sunbank [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Divestiture, Sale Price	$ 920
Income (loss) from discontinued operations before gain or loss on disposal net of tax			9
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax			62
INCOME FROM DISCONTINUED OPERATIONS, NET OF TAX			$ 71