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Leases Lessee, Operating Lease, Liability, Maturity (Details)
$ in Millions
Sep. 30, 2019
USD ($)
Leases [Abstract]  
2019 $ 40
2020 138
2021 95
2022 66
2023 45
Thereafter 75
Total lease payments 459
Less imputed interest 51
Present value of lease liabilities $ 408