Segment Reporting (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	May 04, 2013 segment	Apr. 28, 2012	Feb. 02, 2013 segment
Segment Reporting
Number of business segments	2		3
Segment Reporting Information
Sales	$ 16,706	$ 16,537
Cost of sales	11,563	11,541
Selling, general and administrative expenses	3,590	3,392
Depreciation and amortization	536	529
Segment profit	1,034	1,285
Gain on receivables transaction	391
Reduction of beneficial interest asset	(17)
Earnings before interest expense and income taxes	1,408	1,285
Net interest expense	629	184
Earnings before income taxes	779	1,101
U.S.
Segment Reporting Information
Sales	16,620	16,537
Cost of sales	11,509	11,541
Depreciation and amortization	491	508
Segment profit	1,239	1,340
Canadian
Segment Reporting Information
Sales	86
Cost of sales	53
Depreciation and amortization	45	21
Segment profit	(205)	(55)
Business segments
Segment Reporting Information
Selling, general and administrative expenses	3,573	3,182
Business segments | U.S.
Segment Reporting Information
Selling, general and administrative expenses	3,381	3,148
Business segments | Canadian
Segment Reporting Information
Selling, general and administrative expenses	$ 193	$ 34