Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	6 Months Ended
	Sep. 12, 2015	Sep. 06, 2014
Income Tax [Line Items]
Discrete Tax Benefit	$ 1	$ 2
Unrecognized tax benefits decreased	3
Unrecognized Tax Benefits	$ 91
Number of months within which company does not anticipate significant change in unrecognized tax benefits	12 months