Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
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| Cash paid for amounts included in the measurement of lease liabilities: | ||
| Operating cash flows from operating leases | $ 86 | $ 75 |
| Operating cash flows from finance leases | 8 | 9 |
| Financing cash flows from finance leases | 18 | 22 |
| Operating leases- ROU assets obtained in exchange for lease obligations | $ 35 | 173 |
| Finance leases - ROU assets obtained in exchange for lease obligations | $ 16 | |
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- References No definition available.
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- Definition Amount of interest paid on finance lease liability. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow for principal payment on finance lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for finance lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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