Accounts Receivable (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Sep. 30, 2022
Receivables [Abstract]
Accounts receivable, sale	$ 425	$ 244	$ 1,261	$ 612
Outstanding receivables sold under factoring agreements	$ 397		$ 397		$ 476