Debt - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Less: current portion of long-term debt	$ (333)	$ (333)
Long-term debt	4,936	4,936
Nonrelated Party
Debt Instrument [Line Items]
Total principal	5,266	5,267
Unamortized (discounts), premiums and debt issuance costs	3	2
Total long-term debt	5,269	5,269
Less: current portion of long-term debt	(333)	(333)
Long-term debt	4,936	4,936
Other \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 11	12
3.500% Unsecured Notes due 2026 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	3.50%
Effective percentage	3.53%
3.500% Unsecured Notes due 2026 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 326	326
4.750% Unsecured Notes due 2046 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	4.75%
Effective percentage	4.81%
4.750% Unsecured Notes due 2046 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 554	554
4.600% Unsecured Notes due 2027 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	4.60%
Effective percentage	4.65%
4.600% Unsecured Notes due 2027 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 700	700
4.700% Unsecured Notes due 2028 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	4.70%
Effective percentage	4.76%
4.700% Unsecured Notes due 2028 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 700	700
4.950% Unsecured Notes due 2030 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	4.95%
Effective percentage	5.01%
4.950% Unsecured Notes due 2030 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 1,000	1,000
5.400% Unsecured Notes due 2035 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	5.40%
Effective percentage	5.47%
5.400% Unsecured Notes due 2035 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 1,000	1,000
7.125% Unsecured Notes due 2036 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	7.125%
Effective percentage	7.25%
7.125% Unsecured Notes due 2036 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 445	445
6.875% Unsecured Notes due 2039 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	6.875%
Effective percentage	6.99%
6.875% Unsecured Notes due 2039 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 191	191
6.500% Unsecured Notes due 2043 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	6.50%
Effective percentage	6.61%
6.500% Unsecured Notes due 2043 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 239	239
4.200% Unsecured Notes due 2033 \| Unsecured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	4.20%
Effective percentage	4.24%
4.200% Unsecured Notes due 2033 \| Unsecured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 50	50
7.650% Private Placement due 2031 \| Secured Debt
Debt Instrument [Line Items]
Debt instrument, interest rate	7.65%
Effective percentage	7.80%
7.650% Private Placement due 2031 \| Secured Debt \| Nonrelated Party
Debt Instrument [Line Items]
Total principal	$ 50	$ 50

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount of unamortized debt discount (premium) and debt issuance costs.

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