Debt - Interest Expense (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
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| Debt Disclosure [Abstract] | ||||
| Total interest cost | $ 244 | $ 246 | $ 732 | $ 759 |
| Capitalized interest | (34) | (25) | (96) | (68) |
| Total interest expense, net of capitalized interest | $ 210 | $ 221 | $ 636 | $ 691 |
| X | ||||||||||
- References No definition available.
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- Definition Amount of interest costs capitalized disclosed as an adjusting item to interest costs incurred. No definition available.
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- Definition Total interest costs incurred during the period and either capitalized or charged against earnings. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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