Income Taxes (Schedule Of Principal Components Of Income Tax Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Income Tax Disclosure [Abstract]
Current: U.S. Federal	$ 511	$ 152	$ 123
Current: State and local	60	26	15
Current: Non-U.S.	400	355	288
Deferred: U.S. Federal	(101)	81	(44)
Deferred: State and local	(13)	(2)	1
Deferred: Non-U.S.	(2)	(27)	(38)
Income tax expense	$ 855	$ 585	$ 345