Risk Management and Derivatives - Effects Of Cash Flow Hedges in Statement of Income (Details) - USD ($) $ in Millions	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Revenues	$ 46,710	$ 44,538	$ 37,403
Cost of sales	25,231	24,576	21,162
Demand creation expense	3,850	3,114	3,592
Other (income) expense, net	(181)	14	139
Interest expense (income), net	205	262	89
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	19	45	519
Foreign exchange forwards and options | Revenues | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	(82)	45	(17)
Foreign exchange forwards and options | Cost of sales | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	(23)	51	364
Foreign exchange forwards and options | Demand creation expense | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	1	3	(2)
Foreign exchange forwards and options | Other (income) expense, net | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	130	(47)	181
Interest rate swaps | Interest expense (income), net | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	$ (7)	$ (7)	$ (7)