Canada Exit (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Aug. 01, 2015	Aug. 02, 2014	Aug. 01, 2015	Aug. 02, 2014	Jan. 31, 2015
Loss on Discontinued Operations
Loss on discontinued operations		$ (20)	$ (157)	$ (36)	$ (309)
Canada Exit
Loss on Discontinued Operations
Sales		0	449	0	842
Cost of sales		0	367	0	686
SG&A expenses		0	216	0	434
Depreciation and amortization		0	70	0	137
Interest expense		0	19	0	38
Pretax loss from operations		0	(223)	0	(453)
Pretax exit costs	[1]	(80)	0	(113)	0
Income taxes		60	66	77	144
Loss on discontinued operations		(20)	(157)	(36)	(309)
Assets and Liabilities of Discontinued Operations
Inventory			510		510
Income tax benefit		234		234		$ 1,430
Property and equipment, net			5,056		5,056
Receivables under the debtor-in-possession credit facility		0		0		19
Receivables from Canada Subsidiaries		319		319		326
Other			832		832
Total assets		553	6,398	553	6,398	1,775
Capital lease obligations			1,240		1,240
Accrued liabilities		336		336		296
Accounts payable and other liabilities			505		505
Total liabilities		$ 336	$ 1,745	$ 336	$ 1,745	$ 296

[1] he pretax exit costs related to our ongoing support of the liquidation process, other professional fees, and an increase to our accrual for the estimated probable losses related to claims that may be asserted against us, primarily under guarantees of certain leases.