Accumulated Other Comprehensive Income - Reclassification from AOCI (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 30, 2023	Nov. 30, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	$ 7,612	$ 8,892
Other expense (income)	21	15
Total amounts reclassified from AOCI	(194)	(223)
Loss to be reclassified in next 12 months (less than)	5
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Total amounts reclassified from AOCI	14	41
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	17	43
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	(1)	0
Reclassification out of AOCI | Actuarial gains
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	(3)	(3)
Reclassification out of AOCI | Prior service costs
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	$ 1	$ 1