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Leases - Supplemental Income Statement Information (Details) - USD ($)
$ in Millions
3 Months Ended
Nov. 30, 2022
Nov. 30, 2021
Operating lease cost    
Fixed $ 813 $ 805
Variable 192 205
Finance lease cost    
Amortization 11 11
Interest 12 13
Sublease income 29 25
Impairment of right-of-use assets 67 68
Gain on sale and leaseback $ 189 $ 87