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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