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Leases - Maturity of Lease Payments to be Received (Details)
$ in Millions
Sep. 30, 2019
USD ($)
Leases [Abstract]  
Remainder of 2019 $ 14
2020 56
2021 56
2022 56
2023 56
Remainder 604
Total lease payments 842
Operating lease, payments to be received, related to options to extend $ 411