Accumulated Other Comprehensive Income - Reclassification from AOCI (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2024	May 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gain from the divestiture of businesses	$ 0	$ 0	$ (944)	$ 0
Cost of revenue	6,157	7,778	19,906	24,143
Other expense (income)	22	18	65	50
Total amounts reclassified from AOCI	(129)	(233)	(1,250)	(663)
Reclassified in next 12 months (less than)			3
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Total amounts reclassified from AOCI	(2)	(11)	3	28
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	0	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	0	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	0	(7)	15	37
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 rate contracts	(1)	(1)	(2)	(1)
Reclassification out of AOCI | Actuarial gains
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	(2)	(4)	(7)	(11)
Reclassification out of AOCI | Prior service costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	$ 1	$ 1	$ 3	$ 3