Credit Quality Indicator and Age Analysis of Past Due US Customer In-House Finance Receivables (Detail) (USD $) In Millions, unless otherwise specified	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross	$ 1,280.6	$ 1,155.5	$ 995.5
Valuation Allowance	(87.7)	(78.1)	(67.8)
Performing Financing Receivable | Current | Aged 0-30 Days
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross	1,030.3	932.6	804.4
Valuation Allowance	(33.8)	(28.9)	(24.3)
Performing Financing Receivable | Past Due | Aged 31 - 90 Days
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross	203.9	180.2	152.1
Valuation Allowance	(7.5)	(6.5)	(4.5)
Nonperforming Financing Receivable | Past Due | Aged More Than 90 Days
Financing Receivable, Allowance for Credit Losses [Line Items]
Gross	46.4	42.7	39.0
Valuation Allowance	$ (46.4)	$ (42.7)	$ (39.0)