Leases Supplemental Cash Flow Information Related to Leases (Details) - USD ($) $ in Millions |
12 Months Ended | ||
---|---|---|---|
Dec. 31, 2021 |
Dec. 31, 2020 |
Dec. 31, 2019 |
|
Lessee Disclosure [Abstract] | |||
Cash paid for amounts included in the measurement of lease liabilities: operating cash flows from operating leases | $ 187 | $ 149 | $ 187 |
Cash paid for amounts included in the measurement of lease liabilities: financing cash flows from finance leases | 40 | 26 | 42 |
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | 45 | 33 | 48 |
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | $ 17 | $ 20 | $ 61 |