Leases - Supplemental Income Statement Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
May 31, 2021	May 31, 2020	May 31, 2021	May 31, 2020
Operating lease cost
Fixed	$ 807	$ 806	$ 2,406	$ 2,436
Variable	157	163	477	587
Finance lease cost
Amortization	11	11	33	29
Interest	13	14	39	40
Sublease income	21	24	62	56
Impairment of right-of-use assets	8	170	23	182
Impairment of finance lease assets	0	21	0	24
Gains on sale-leaseback transactions	$ 85	$ 84	$ 273	$ 224

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

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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.

+ References

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

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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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- Definition

Lessee, Finance Lease, Cost

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Operating Lease, Cost

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