Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	May 31, 2013	May 31, 2012	May 31, 2011
Foreign currency translation and other, tax benefit (expense)	$ (12)	$ 0	$ (121)
Net gain (loss) on cash flow hedges, tax benefit (expense)	(22)	(8)	66
Net gain (loss) on net investment hedges, tax benefit (expense)	0	0	28
Reclassification to net income of previously deferred net gains related to hedge derivatives, tax (benefit) expense	0	(14)	24
Release of cumulative translation loss related to Umbro, tax expense	$ (47)	$ 0	$ 0