Reserves for Closed Properties and Property, Plant and Equipment-Related Impairment Charges - Summary of Fair Values for Property, Plant and Equipment Assets Measured at Fair Value on a Non-Recurring Basis (Detail) - USD ($) $ in Millions	4 Months Ended
	Jun. 20, 2015	Jun. 14, 2014
Property, Plant and Equipment [Abstract]
Carrying value	$ 2	$ 0
Fair value measured using Level 3 inputs	2	0
Impairment charge	$ 0	$ 0