Benefit Plans - Net Periodic Benefit Expense and Contributions for Defined Benefit Pension Plans and Other Postretirement Benefit Plans (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Dec. 03, 2016	Dec. 05, 2015	Dec. 03, 2016	Dec. 05, 2015
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	$ 20	$ 24	$ 66	$ 81
Expected return on assets	(33)	(32)	(110)	(108)
Amortization of prior service benefit	0	0	0	0
Amortization of net actuarial loss	10	18	34	60
Defined Benefit Plan, Settlements, Benefit Obligation	41	0	41	0
Net periodic benefit expense (income)	38	10	31	33
Contributions to benefit plans	0	0	(2)	(27)
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Interest cost	0	1	1	3
Expected return on assets	0	0	0	0
Amortization of prior service benefit	(2)	(4)	(10)	(12)
Amortization of net actuarial loss	0	1	1	4
Defined Benefit Plan, Settlements, Benefit Obligation	0	0	0	0
Net periodic benefit expense (income)	(2)	(2)	(8)	(5)
Contributions to benefit plans	$ 0	$ 0	$ 0	$ (11)