Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	May. 31, 2015	May. 31, 2014	May. 31, 2013
Foreign currency translation and other, tax benefit (expense)	$ 0	$ 0	$ (13)
Net gain (loss) on cash flow hedges, tax benefit (expense)	(31)	18	(22)
Net gain (loss) on other, tax benefit (expense)	0	0	1
Release of cumulative translation loss related to Umbro, tax expense	$ 0	$ 0	$ 47