Comprehensive Income and Accumulated Other Comprehensive Loss - Summary of Items Reclassified Out of Pension and Postretirement Benefit Plan Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Millions	4 Months Ended
	Jun. 20, 2015	Jun. 14, 2014
Pension and postretirement benefit plan obligations:
Total reclassifications	$ 22	$ 16
Income tax benefit	(8)	(5)
Total reclassifications, net of tax	14	11
Selling, General and Administrative Expenses [Member]
Pension and postretirement benefit plan obligations:
Amortization of amounts included in net periodic benefit cost	20	12
Cost of Sales [Member]
Pension and postretirement benefit plan obligations:
Amortization of amounts included in net periodic benefit cost	$ 2	$ 4