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Leases - Maturities of Operating Lease Liabilities (Details)
$ in Millions
Feb. 29, 2020
USD ($)
Leases [Abstract]  
Remainder of 2020 $ 158
2021 188
2022 156
2023 148
2024 142
Thereafter 1,039
Total lease payments 1,832
Less: Present value discount (352)
Present value of lease liabilities $ 1,480