Comprehensive Income and Accumulated Other Comprehensive Loss - Schedule of Changes in Accumulated Other Comprehensive Loss (Detail) (USD $) In Millions, unless otherwise specified	4 Months Ended	9 Months Ended
	Jun. 15, 2013	Nov. 29, 2014	Nov. 30, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Pension and postretirement benefit plan accumulated other comprehensive loss at beginning of the fiscal year, net of tax	$ (612)	$ (307)	$ (612)
Other comprehensive loss before reclassifications, net of tax benefit of ($59) and $0, respectively		(141)	0
Pension settlement charge, net of tax expense of $27 and $0, respectively		36	0
Amortization of amounts included in net periodic benefit cost, net of tax expense of $15 and $28, respectively		25	44
Net current-period Other comprehensive (loss) income, net of tax (benefit) expense of ($17) and $28, respectively		(80)	44
Divestiture of NAI pension plan accumulated other comprehensive income, net of tax expense of $0 and $31, respectively	(48)	0	48
Pension and postretirement benefit plan accumulated other comprehensive loss at the end of period, net of tax		$ (387)	$ (520)