Equity method investments - Summarized Financial Information of Equity Method Investments (Details) - USD ($) $ in Millions	3 Months Ended
Nov. 30, 2021	Nov. 30, 2020
Income Statement [Abstract]
Sales	$ 33,901	$ 31,438
Gross profit	7,574	6,630
Net earnings (loss)	3,531	(299)
Share of earnings (loss) from equity method investments	93	(1,357)
Equity Method Investment
Income Statement [Abstract]
Sales	67,588	56,088
Gross profit	3,420	2,410
Net earnings (loss)	$ 308	$ (4,806)

Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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