SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2020
Allowance for doubtful accounts
Valuation and Qualifying Account
Balance at beginning of year	$ 53	$ 42	$ 32
Charged (credited) to costs and expenses	61	36	32
Other	(50)	(25)	(22)
Balance at end of year	64	53	42
Deferred tax assets valuation allowance
Valuation and Qualifying Account
Balance at beginning of year	138	105	91
Charged (credited) to costs and expenses	(14)	23	0
Other	17	10	14
Balance at end of year	$ 141	$ 138	$ 105