RISK MANAGEMENT AND DERIVATIVES - Effects Of Cash Flow Hedges in Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2022	Nov. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Revenues	$ 13,315	$ 11,357	$ 26,002	$ 23,605
Cost of sales	7,604	6,144	14,676	12,696
Demand creation expense	1,102	1,017	2,045	1,935
Other (income) expense, net	(79)	(102)	(225)	(141)
Interest expense (income), net	16	55	29	112
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	298	(31)	477	(128)
Foreign exchange forwards and options | Revenues | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	4	(20)	(5)	(41)
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	173	(30)	282	(96)
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	(2)	0	(3)	1
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	125	20	207	11
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	$ (2)	$ (1)	$ (4)	$ (3)