Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 30, 2013	Dec. 01, 2012	Nov. 30, 2013	Dec. 01, 2012
Income Tax Disclosure [Abstract]
Discrete tax benefit	$ 0	$ 2	$ 2	$ 10
Discrete tax expense	0		2
Unrecognized tax benefits decreased			$ 151
Number of months within which company does not anticipate significant change in unrecognized tax benefits			12 months