RISK MANAGEMENT AND DERIVATIVES - Effects Of Cash Flow Hedges in Statement of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2023	Feb. 28, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Revenues	$ 12,390	$ 10,871	$ 38,392	$ 34,476
Cost of sales	7,019	5,804	21,695	18,500
Demand creation expense	923	854	2,968	2,789
Other (income) expense, net	(58)	(94)	(283)	(235)
Interest expense (income), net	(7)	53	22	165
Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	283	38	760	(90)
Foreign exchange forwards and options | Revenues | Cash Flow Hedging
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) ON CASH FLOW HEDGE ACTIVITY	14	(22)	9	(63)
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	182	17	464	(79)
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)	0	(4)	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	90	45	297	56
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)	$ (2)	$ (6)	$ (5)