Restructuring - Recorded Restructuring Activities (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2024
Restructuring Cost and Reserve [Line Items]
Total	$ 3	$ 9	$ 12
Cost of Sales [Member]
Restructuring Cost and Reserve [Line Items]
Total	2		11
Selling and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Total	$ 1		$ 1