Leases - Components of Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended
Nov. 30, 2020	Nov. 30, 2019
Operating lease cost
Fixed	$ 827	$ 830
Variable	162	14
Finance lease cost
Amortization	11	9
Interest	14	14
Sublease income	20	15
Impairment of right-of-use assets	10	0
Gains on sale-leaseback transactions	$ 93	$ 77

Amount of interest expense on finance lease liability.

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Amount of amortization expense attributable to right-of-use asset from finance lease.

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Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

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Amount of loss from impairment of right-of-use asset from operating lease.

+ References

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Amount of gain (loss) on sale and leaseback transaction from transfer of asset accounted for as sale.

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Amount of sublease income excluding finance and operating lease expense.

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Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

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Lessee, Finance Lease, Cost

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Operating Lease, Cost

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