Accumulated Other Comprehensive Income - Reclassification from AOCI (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 30, 2022	Nov. 30, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	$ 8,892	$ 7,892
Interest expense	61	33
Other expense (income)	15	1
Total amounts reclassified from AOCI	(223)	(241)
Loss to be reclassified in next 12 months	16
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Total amounts reclassified from AOCI	41	(2)
Reclassification out of AOCI | Realized losses (gain) on derivative instruments | Foreign exchange contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	43	1
Reclassification out of AOCI | Realized losses (gain) on derivative instruments | Interest rate contracts
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Interest expense	0	1
Reclassification out of AOCI | Actuarial gain
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	(3)	(5)
Reclassification out of AOCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	$ 1	$ 1