Risk Management and Derivatives - Amounts Affecting Consolidated Statements of Income (Detail) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2020	Nov. 30, 2019
Foreign Exchange Contract \| Other (income) expense, net \| Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) RECOGNIZED  IN INCOME ON DERIVATIVES	$ (49)	$ (21)	$ (87)	$ (21)
Embedded derivatives \| Other (income) expense, net \| Derivatives not designated as hedging instruments
Derivative Instruments, Gain (Loss) [Line Items]
AMOUNT OF GAIN (LOSS) RECOGNIZED  IN INCOME ON DERIVATIVES	(9)	(4)	(13)	(5)
Derivatives designated as cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	(60)	(19)	(590)	144
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	43	130	178	257
Derivatives designated as cash flow hedges \| Foreign Exchange Contract \| Revenue
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	6	(83)	6	(62)
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	26	1	40	9
Derivatives designated as cash flow hedges \| Foreign Exchange Contract \| Cost of sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	(69)	37	(440)	146
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	31	102	145	177
Derivatives designated as cash flow hedges \| Foreign Exchange Contract \| Demand creation expense
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	2	0	3	0
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	0	(3)	1	(3)
Derivatives designated as cash flow hedges \| Foreign Exchange Contract \| Other (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	1	27	(159)	60
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	(13)	31	(5)	77
Derivatives designated as cash flow hedges \| Interest rate swaps \| Interest (income) expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	0	0	0	0
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	$ (1)	$ (1)	$ (3)	$ (3)

Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
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Amount, before tax and reclassification, of gain (loss) from derivative instrument designated and qualifying cash flow hedge included in assessment of hedge effectiveness.

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