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Fair Value (Details) - USD ($) $ in Millions	Mar. 31, 2026	Mar. 09, 2026	Mar. 04, 2026	Dec. 31, 2025
Assets
Derivative Assets, Fair Value, Gross Asset	$ 228			$ 89
Liabilities
Derivative liability, fair value, gross liability	$ 705			$ 4
6.75% Senior Unsecured Notes due 2026
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	6.75%			6.75%
Senior Notes, Principal amount	$ 419			$ 419
Long-term Debt, Fair Value	$ 420			420
5.000% Senior Unsecured Notes Due 2026
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	5.00%
Senior Notes, Principal amount	$ 400			0
Long-term Debt, Fair Value	$ 399			$ 0
6.625% Senior Unsecured Notes due 2027
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	6.625%			6.625%
Senior Notes, Principal amount	$ 417			$ 417
Long-term Debt, Fair Value	$ 417			419
8.375% Senior Unsecured Notes Due 2028
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	8.375%
Senior Notes, Principal amount	$ 566		$ 1,350	0
Long-term Debt, Fair Value	$ 583			$ 0
6.5% Senior Unsecured Notes Due 2028
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	6.50%			6.50%
Senior Notes, Principal amount	$ 400			$ 400
Long-term Debt, Fair Value	$ 401			$ 405
6.750% Senior Notes Due 2029
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	6.75%			6.75%
Senior Notes, Principal amount	$ 750			$ 750
Long-term Debt, Fair Value	$ 764			756
8.625% Senior Unsecured Notes Due 2026
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	8.625%
Senior Notes, Principal amount	$ 1,000			0
Long-term Debt, Fair Value	$ 1,054			0
8.750% Senior Unsecured Notes Due 2031
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	8.75%
Senior Notes, Principal amount	$ 1,350			0
Long-term Debt, Fair Value	$ 1,417			$ 0
7.000% Senior Notes Due 2032
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	7.00%			7.00%
Senior Notes, Principal amount	$ 750			$ 750
Long-term Debt, Fair Value	$ 766			739
9.625% Senior Unsecured Notes Due 2033
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	9.625%
Senior Notes, Principal amount	$ 750			0
Long-term Debt, Fair Value	$ 830			0
6.625% Senior Unsecured Notes Due 2034
Debt Instrument, Fair Value Disclosure [Abstract]
Senior Notes, interest rate, stated percentage	6.625%	6.625%
Senior Notes, Principal amount	$ 1,000	$ 1,000		0
Long-term Debt, Fair Value	1,002			0
Not Designated as Hedging Instrument | Fair Value, Recurring | Fair Value, Inputs, Level 1
Assets
Derivative Assets, Fair Value, Gross Asset	0			0
Liabilities
Derivative liability, fair value, gross liability	0			0
Not Designated as Hedging Instrument | Fair Value, Recurring | Fair Value, Inputs, Level 2
Assets
Derivative Assets, Fair Value, Gross Asset	228			89
Liabilities
Derivative liability, fair value, gross liability	705			4
Not Designated as Hedging Instrument | Fair Value, Recurring | Fair Value, Inputs, Level 3
Assets
Derivative Assets, Fair Value, Gross Asset	0			0
Liabilities
Derivative liability, fair value, gross liability	$ 0			$ 0

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