Segment Reporting (Details 2) (USD $) In Millions	Jul. 30, 2011	Jan. 29, 2011	Jul. 31, 2010
Segment Reporting Information
Total assets	$ 45,499	$ 43,705	$ 43,655
U.S. Retail
Segment Reporting Information
Total assets	36,823	37,324	37,182
U.S. Credit Card
Segment Reporting Information
Total assets	5,931	6,381	6,473
Canadian
Segment Reporting Information
Total assets	$ 2,745