Accumulated OCI Not Yet Recognized as Income (Expense) (Detail) (UK Plan, USD $) In Millions, unless otherwise specified	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
UK Plan
Defined Benefit Plan Disclosure [Line Items]
Net actuarial loss	$ (42.5)	$ (44.4)	$ (51.5)
Net prior service credit	$ 15.3	$ 17.1	$ 19.1

Amount after tax of cost (credit) due to benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as a component of net periodic benefit cost.

No definition available.

Name:	us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeNetPriorServiceCostCreditAfterTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant