Risk Management and Derivatives - Amounts Affecting Consolidated Statements of Income (Detail) - USD ($) $ in Millions	3 Months Ended
Aug. 31, 2020	Aug. 31, 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	$ (38)	$ 0
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	(4)	(1)
Derivatives designated as cash flow hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives	(530)	163
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	135	127
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	0	21
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	14	8
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	(371)	109
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	114	75
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	1	33
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	1	0
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	(160)	0
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	8	46
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
Amount of Gain (Loss) Reclassified From Accumulated Other Comprehensive Income into Income	$ (2)	$ (2)

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
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-SubTopic 10
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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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