Allowance for Credit Losses On US Customer In-House Finance Receivables (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended
	May 03, 2014	May 04, 2013	Feb. 01, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Accounts receivable, net	$ 1,308.2	$ 1,157.5	$ 1,374.0
US Customer In-House Finance Receivables
Financing Receivable, Allowance for Credit Losses [Line Items]
Beginning balance	(97.8)	(87.7)	(87.7)
Charge-offs	32.3	29.4	128.2
Recoveries	8.5	7.4	26.0
Provision	(30.8)	(28.7)	(164.3)
Ending balance	(87.8)	(79.6)	(97.8)
Ending receivable balance evaluated for impairment	1,382.6	1,225.5	1,453.8
Accounts receivable, net	$ 1,294.8	$ 1,145.9	$ 1,356.0