Credit Card Receivables (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended
	Jul. 30, 2011	Jan. 29, 2011	Jul. 31, 2010
Credit Card Receivables
Number of days past due for accounts receivable to be written off (in days)	180
Age of Credit Card Receivables
Period-end gross credit card receivables	$ 6,202	$ 6,843	$ 6,988
Period-end gross credit card receivables (as a percent)	100.00%	100.00%	100.00%
Current
Age of Credit Card Receivables
Period-end gross credit card receivables	5,671	6,132	6,167
Period-end gross credit card receivables (as a percent)	91.40%	89.60%	88.30%
1-29 days past due
Age of Credit Card Receivables
Period-end gross credit card receivables	242	292	312
Period-end gross credit card receivables (as a percent)	3.90%	4.30%	4.50%
30-59 days past due
Age of Credit Card Receivables
Period-end gross credit card receivables	101	131	162
Period-end gross credit card receivables (as a percent)	1.60%	1.90%	2.30%
60-89 days past due
Age of Credit Card Receivables
Period-end gross credit card receivables	60	79	101
Period-end gross credit card receivables (as a percent)	1.00%	1.10%	1.40%
90+ days past due
Age of Credit Card Receivables
Period-end gross credit card receivables	$ 128	$ 209	$ 246
Period-end gross credit card receivables (as a percent)	2.10%	3.10%	3.50%