Accumulated Other Comprehensive Income - Reclassification from AOCI (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gain from the divestiture of businesses	$ (944)	$ 0	$ (944)	$ 0
Cost of revenue	6,137	7,473	13,749	16,365
Other expense (income)	22	17	43	32
Total amounts reclassified from AOCI	(927)	(207)	(1,121)	(430)
Reclassified in next 12 months (less than)			2
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Total amounts reclassified from AOCI	(9)	(2)	5	39
Reclassification out of AOCI | Foreign Currency Translation Adjustment
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gain from the divestiture of businesses	(2)	0	(2)	0
Reclassification out of AOCI | Net Investment Hedges
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gain from the divestiture of businesses	(4)	0	(4)	0
Reclassification out of AOCI | Realized (gains) losses on derivative instruments | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	(2)	1	15	44
Reclassification out of AOCI | Realized (gains) losses on derivative instruments | Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest expense	0	0	(1)	0
Reclassification out of AOCI | Actuarial gains
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	(2)	(4)	(5)	(7)
Reclassification out of AOCI | Prior service costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	$ 1	$ 1	$ 2	$ 2