Accumulated Other Comprehensive Income (Reclassification from AOCI) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2022	May 31, 2021
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Cost of revenue	$ 7,709	$ 6,647	$ 22,545	$ 20,104
Interest expense	39	34	105	97
Other expense (income)	1	(4)	(2)	(7)
Total amounts reclassified from AOCI	(218)	(169)	(681)	(521)
Loss to be reclassified in next 12 months			20
Reclassification out of AOCI
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Total amounts reclassified from AOCI	6	(4)	(5)	(41)
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	9	(4)	4	(43)
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	0	2	2
Reclassification out of AOCI | Actuarial gain
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	(4)	0	(14)	0
Reclassification out of AOCI | Prior service cost
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Other expense (income)	$ 1	$ 0	$ 3	$ 0