Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	May 31, 2018	May 31, 2017
Deferred tax assets:
Inventories	$ 73	$ 90
Sales return reserves	104	130
Deferred compensation	250	348
Stock-based compensation	135	225
Reserves and accrued liabilities	102	88
Net operating loss carry-forwards	88	84
Foreign tax credit carry-forwards	0	208
Undistributed earnings of foreign subsidiaries	0	173
Other	106	106
Total deferred tax assets	858	1,452
Valuation allowance	(95)	(82)
Total deferred tax assets after valuation allowance	763	1,370
Deferred tax liabilities:
Foreign withholding tax on undistributed earnings of foreign subsidiaries	(155)	0
Property, plant and equipment	(167)	(254)
Intangibles	(77)	(90)
Other	(26)	(2)
Total deferred tax liabilities	(425)	(346)
NET DEFERRED TAX ASSET	$ 338	$ 1,024