Identified Intangible Assets and Goodwill - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Feb. 29, 2012	Feb. 28, 2011	Feb. 29, 2012	Feb. 28, 2011
Goodwill and Intangible Assets Disclosure [Line Items]
Decrease in unamortized intangible assets due to the effect of foreign exchange fluctuations			$ (1)
Decrease in goodwill due to the effect of foreign exchange fluctuations			(3)
Amortization expense, which is included in selling and administrative expense	5	4	16	11
Estimated amortization expense for intangible assets subject to amortization, remainder of fiscal year 2012			5
Estimated amortization expense for intangible assets subject to amortization, 2013			20
Estimated amortization expense for intangible assets subject to amortization, 2014			18
Estimated amortization expense for intangible assets subject to amortization, 2015			15
Estimated amortization expense for intangible assets subject to amortization, 2016			$ 13