Nonconsolidated Partially-Owned Affiliates - Schedule of Operating Information of Nonconsolidated Partially-Owned Affiliates (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2023
Schedule of Equity Method Investments [Line Items]
Investments in partially-owned affiliates	$ 322		$ 303
Gross profit	246	$ 231
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Schedule of Equity Method Investments [Line Items]
Net sales	1,037	976
Gross profit	93	101
Net income	49	60
Net income attributable to the entity	$ 48	$ 59