Debt - Public Debt (Details) - USD ($) $ in Millions		1 Months Ended		6 Months Ended
	Jul. 01, 2024	Mar. 31, 2023	Jan. 31, 2023	Jun. 30, 2024	Jun. 30, 2023
Debt Instrument [Line Items]
Payment for early redemption of debt				$ 0	$ 1
5.125% Notes, due 2024
Debt Instrument [Line Items]
Early redemption of debt			$ 26
Long-term debt, interest rate (as a percent)		5.125%	5.125%	5.125%
Payment for early redemption of debt		$ 150
Repayments of debt		155
Interest expense		4
Early termination premium		$ 1
5.125% Notes, due 2024 | Subsequent Event
Debt Instrument [Line Items]
Early redemption of debt	$ 205
Long-term debt, interest rate (as a percent)	5.125%
Redemption price, amount	$ 208
Accrued interest	$ 3
6.875% Notes, due 2024
Debt Instrument [Line Items]
Long-term debt, interest rate (as a percent)				6.875%
Repurchased face amount				$ 23