Leases - Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$ 189	$ 173
Operating cash outflows from finance leases	3	3
Financing cash outflows from finance leases	26	25
ROU assets obtained in exchange for lease obligations:
Operating leases	189	89
Finance leases	$ 9	$ 68

Cash Flow Activities, Lessee

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- Definition

Right-Of-Use Assets Obtained In Exchange For Lease Liabilities

+ References

No definition available.

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- Definition

Amount of interest paid on finance lease liability.

+ References

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-Publisher FASB
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- Definition

Amount of cash outflow for principal payment on finance lease.

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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.

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-Publisher FASB
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- Definition

Amount of increase in right-of-use asset obtained in exchange for finance lease liability.

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- Definition

Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

+ References

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