Income Taxes - Deferred Tax Assets and Liabilities (Detail) - USD ($) $ in Millions	May 31, 2016	May 31, 2015
Deferred tax assets:
Allowance for doubtful accounts	$ 5	$ 11
Inventories	88	59
Sales return reserves	182	143
Deferred compensation	274	258
Stock-based compensation	206	179
Reserves and accrued liabilities	78	92
Net operating loss carry-forwards	44	10
Undistributed earnings of foreign subsidiaries	179	149
Other	72	76
Total deferred tax assets	1,128	977
Valuation allowance	(52)	(9)
Total deferred tax assets after valuation allowance	1,076	968
Deferred tax liabilities:
Property, plant and equipment	(268)	(220)
Intangibles	(92)	(93)
Other	(4)	(38)
Total deferred tax liability	(364)	(351)
NET DEFERRED TAX ASSET	$ 712	$ 617