Debt Obligations - Additional Information, Senior Notes (Details) - USD ($) $ in Millions						3 Months Ended		9 Months Ended
	Apr. 15, 2026	Apr. 15, 2025	Sep. 30, 2024	Apr. 15, 2024	Aug. 20, 2020	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023	Apr. 06, 2021
Debt Instrument [Line Items]
Long-term debt			$ 1,098			$ 1,098		$ 1,098		$ 2,563
Debt instrument, redemption, principal amount redeemed			1,200			1,200		1,200
Gain (loss) on extinguishment of debt						8	$ 0	8	$ 0
Debt instrument, unamortized discount			18			18		18
Deferred debt issuance cost, writeoff			10
Debt value of long-term debt			1,080			1,080		1,080		2,470
5.000% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt			$ 650		$ 650	$ 650		$ 650		$ 650
Debt stated interest rate			5.00%		5.00%	5.00%		5.00%		5.00%
5.000% Senior Notes due 2028 | Twelve Month Period Commencing October 1, 2024
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount					101.25%
5.250% Senior Notes due 2030
Debt Instrument [Line Items]
Long-term debt			$ 52		$ 450	$ 52		$ 52		$ 450
Debt stated interest rate			5.25%		5.25%	5.25%		5.25%		5.25%
Debt instrument, redemption, principal amount redeemed			$ 398			$ 398		$ 398
5.250% Senior Notes due 2030 | Twelve Month Period Commencing October 1, 2028
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount					100.00%
5.250% Senior Notes due 2030 | Twelve month period commencing on October 1, 2025
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount					102.625%
5.250% Senior Notes due 2030 | Twelve Month Period Commencing October 1, 2026
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount					101.75%
5.250% Senior Notes due 2030 | Twelve Month Period Commencing October 1, 2027
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount					100.875%
5.000% and 5.250% Senior Notes | Prior to October 1, 2023
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount					100.00%
5.125% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, gross											$ 1,200
5.125% Senior Notes due 2029 | On or after April 15; redeemed in 2024
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount				102.563%
5.125% Senior Notes due 2029 | On or after April 15; redeemed in 2025 | Forecast
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount		101.281%
5.125% Senior Notes due 2029 | On or after April 15; redeemed in 2026 and thereafter | Forecast
Debt Instrument [Line Items]
Debt instrument redemption price as percentage of principle amount	100.00%
5.125% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt			$ 403			$ 403		$ 403		$ 1,200
Debt stated interest rate			5.125%			5.125%		5.125%		5.125%	5.125%
Debt instrument, redemption, principal amount redeemed			$ 797			$ 797		$ 797