Components of Net Periodic Pension Benefit Cost and Net Postretirement Benefit Income (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 02, 2013	Oct. 27, 2012	Nov. 02, 2013	Oct. 27, 2012
Pension Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 4	$ 3	$ 11	$ 10
Interest cost	6	7	19	21
Expected return on plan assets	(10)	(10)	(30)	(30)
Amortization of net loss (gain)	4	4	12	12
Net benefit expense (income)	4	4	12	13
Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	0	0	0	0
Expected return on plan assets	0	0	0	0
Amortization of net loss (gain)	(1)	(1)	(2)	(3)
Net benefit expense (income)	$ (1)	$ (1)	$ (2)	$ (3)