Customer Accounts Receivable Aging (Detail)	Oct. 29, 2011	Jan. 29, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	92.10%	90.40%
Up to 60 days past due	6.60%	8.10%
61-120 days past due	0.80%	1.00%
121-180 days past due	0.50%	0.50%