CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2022
OPERATING ACTIVITIES:
Net income	$ 1,715	$ 1,299	$ 867
Income from discontinued operations, net of tax	0	0	(1)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	149	129	116
Amortization of intangible assets and product certification costs	163	139	137
Amortization of debt issuance costs, original issue discount and premium	40	41	34
Amortization of inventory step-up	21	2	3
Amortization of loss contract reserves	(35)	(34)	(39)
Refinancing costs	58	56	1
Gain on sale of businesses, net	(11)	0	(7)
Non-cash stock and deferred compensation expense	217	157	184
Deferred income taxes	10	3	(22)
Foreign currency exchange losses (gains)	20	14	(40)
(Gain) loss on settlement of the Esterline Retirement Plan (the “ERP”)	0	(9)	22
Cash refund (contribution) for the ERP settlement, net	0	9	(16)
Changes in assets/liabilities, net of effects from acquisitions and sales of businesses:
Trade accounts receivable	(84)	(212)	(190)
Inventories	(104)	(261)	(134)
Income taxes (receivable) payable	(62)	168	58
Other assets	(60)	(44)	(56)
Accounts payable	(11)	12	58
Accrued interest	60	(45)	(21)
Accrued and other liabilities	(41)	(49)	(6)
Net cash provided by operating activities	2,045	1,375	948
INVESTING ACTIVITIES:
Capital expenditures	(165)	(139)	(119)
Acquisition of businesses, net of cash acquired	(2,347)	(762)	(437)
Other investing transactions	71	1	3
Net cash used in investing activities	(2,441)	(900)	(553)
FINANCING ACTIVITIES:
Proceeds from exercise of stock options	245	215	132
Dividends and dividend equivalent payments	(2,038)	(38)	(1,091)
Repurchases of common stock	0	0	(912)
Proceeds from issuance of senior secured notes, net	7,373	3,504	0
Repayments of senior secured notes	(4,400)	(1,122)	0
Repayments of senior subordinated notes, net	(550)	(1,459)	0
Repayment on revolving credit facility	0	0	(200)
Proceeds from trade receivable securitization facility, net	137	0	0
Proceeds from term loans, net	6,815	6,238	0
Repayment on term loans	4,403	7,334	75
Financing costs and other, net	(8)	(20)	(2)
Net cash provided by (used in) financing activities	3,171	(16)	(2,148)
EFFECT OF EXCHANGE RATE CHANGES ON CASH AND CASH EQUIVALENTS	14	12	(33)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	2,789	471	(1,786)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	3,472	3,001	4,787
CASH AND CASH EQUIVALENTS, END OF PERIOD	6,261	3,472	3,001
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION:
Cash paid during the period for interest, net	1,158	1,160	1,057
Cash paid during the period for income taxes, net of refunds	$ 539	$ 260	$ 220