Long-term Debt and Interest Expense - Interest Expenses (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Debt Disclosure [Abstract]
Cash payments for interest	$ 136	$ 119	$ 121
Amortization of issuance discounts (premiums), net	(4)	29	1
Amortization of capitalized loan fees	14	5	4
Net changes in accruals	17	(19)	0
Interest incurred	163	134	126
Less capitalized interest	(2)	(5)	(5)
Interest expense, total	$ 161	$ 129	$ 121

Debt Instrument, Increase (Decrease), Accrued Interest

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Amount of amortization expense attributable to debt issuance costs.

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Amount of interest costs capitalized disclosed as an adjusting item to interest costs incurred.

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Total interest costs incurred during the period and either capitalized or charged against earnings.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of cash paid for interest, including, but not limited to, capitalized interest and payment to settle zero-coupon bond attributable to accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount; classified as operating and investing activities.

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