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Leases - Capital Lease Maturities Under Topic 840 (Details)
$ in Millions
Dec. 31, 2019
USD ($)
Leases [Abstract]  
2019 $ 10
2020 6
2021 2
2022 1
2023 1
2024 and thereafter 4
Total minimum payments 24
Less: amount representing interest and executory costs (5)
Present value of minimum payments 19
Less: current portion (12)
Long-term portion $ 7