Accounts Payable and Accrued Liabilities (Changes In Workers' Compensation And General Liability Reserves) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Accounts Payable and Accrued Liabilities, Current [Abstract]
Balance, beginning of year	$ 497	$ 497	$ 493
Expense for workers compensation and general liability reserves	160	147	157
Payments of workers compensation and general liability reserves	(152)	(147)	(153)
Balance, end of year	$ 505	$ 497	$ 497