Fair Value Measurements - Derivative Assets and Liabilities at Fair Value (Detail) - USD ($) $ in Millions	May 31, 2021	May 31, 2020
Cash and Cash Equivalents
Derivatives, Fair Value [Line Items]
Fair value of collateral	$ 0
Foreign exchange forwards and options | Cash and Cash Equivalents
Derivatives, Fair Value [Line Items]
Fair value of collateral	39	$ 0
Fair value of derivative liability collateral	0	0
Fair Value, Measurements, Recurring
Derivatives, Fair Value [Line Items]
Reduction in derivative liabilities if netted	93	76
Reduction in derivative assets if netted	93	76
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring
Derivatives, Fair Value [Line Items]
ASSETS AT FAIR VALUE	92	95
OTHER CURRENT ASSETS	76	92
OTHER LONG-TERM ASSETS	16	3
LIABILITIES AT FAIR VALUE	457	207
ACCRUED LIABILITIES	416	190
OTHER LONG-TERM LIABILITIES	41	17
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Foreign exchange forwards and options
Derivatives, Fair Value [Line Items]
ASSETS AT FAIR VALUE	92	94
OTHER CURRENT ASSETS	76	91
OTHER LONG-TERM ASSETS	16	3
LIABILITIES AT FAIR VALUE	456	205
ACCRUED LIABILITIES	415	188
OTHER LONG-TERM LIABILITIES	41	17
Fair Value, Inputs, Level 2 | Fair Value, Measurements, Recurring | Embedded derivatives
Derivatives, Fair Value [Line Items]
ASSETS AT FAIR VALUE	0	1
OTHER CURRENT ASSETS	0	1
OTHER LONG-TERM ASSETS	0	0
LIABILITIES AT FAIR VALUE	1	2
ACCRUED LIABILITIES	1	2
OTHER LONG-TERM LIABILITIES	$ 0	$ 0