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Leases - Schedule of Maturities of Lease Liabilities (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Leases [Abstract]  
2020 $ 75
2021 63
2022 51
2023 38
2024 28
Thereafter 131
Total 386
Imputed lease interest (54)
Total lease liabilities $ 332