Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 06, 2014	Sep. 07, 2013	Sep. 06, 2014	Sep. 07, 2013
Income Tax [Line Items]
Discrete tax benefit	$ 0	$ 0	$ 2	$ 2
Discrete tax expense		0		2
Number of months within which company does not anticipate significant change in unrecognized tax benefits	12 months
Minimum [Member]
Income Tax [Line Items]
Unrecognized tax benefits increased	1
Maximum [Member]
Income Tax [Line Items]
Unrecognized tax benefits increased			$ 77