Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	May 31, 2020	May 31, 2019
Deferred tax assets:
Inventories	$ 84	$ 66
Sales return reserves	115	128
Deferred compensation	295	271
Stock-based compensation	168	156
Reserves and accrued liabilities	120	101
Operating lease liabilities	491	0
Capitalized research and development expenditures	189	0
Net operating loss carry-forwards	21	81
Other	127	125
Total deferred tax assets	1,610	928
Valuation allowance	(26)	(88)
Total deferred tax assets after valuation allowance	1,584	840
Deferred tax liabilities:
Foreign withholding tax on undistributed earnings of foreign subsidiaries	(165)	(235)
Property, plant and equipment	(232)	(188)
Right-of-use assets	(423)	0
Other	(32)	(41)
Total deferred tax liabilities	(852)	(464)
NET DEFERRED TAX ASSET	$ 732	$ 376