Leases - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Schedule of Operating Leases [Line Items]
Certain executory costs related to leases	$ 130	$ 131	$ 138
Operating Leases, Rent Expense	544	522	526
Non-store expenses
Schedule of Operating Leases [Line Items]
Operating Leases, Rent Expense	$ 17	$ 15	$ 15
Minimum
Schedule of Operating Leases [Line Items]
Operating lease period	5 years
Maximum
Schedule of Operating Leases [Line Items]
Operating lease period	10 years