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, unless otherwise specified	3 Months Ended		6 Months Ended
	Sep. 06, 2014	Sep. 07, 2013	Sep. 06, 2014	Sep. 07, 2013
Pension and postretirement benefit plan obligations:
Total reclassifications	$ 12	$ 21	$ 28	$ 50
Income tax provision (benefit)	(5)	(8)	(10)	(19)
Total reclassifications, net of tax	7	13	18	31
Selling and Administrative Expenses [Member]
Pension and postretirement benefit plan obligations:
Amortization of amounts included in net periodic benefit cost	10	19	22	45
Cost of Sales [Member]
Pension and postretirement benefit plan obligations:
Amortization of amounts included in net periodic benefit cost	$ 2	$ 2	$ 6	$ 5