Derivatives - Fair Value of Presentation of Derivative Assets and Liabilities (Details) (USD $) In Millions, unless otherwise specified	May 02, 2015	Jan. 31, 2015	May 03, 2014
Derivatives, Fair Value [Line Items]
Fair Value of derivative assets	$ 0.6	$ 7.4	$ 1.4
Fair value of derivative liabilities	(2.4)	0	(3.0)
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Fair Value of derivative assets	0.6	7.3	1.4
Fair value of derivative liabilities	(2.3)	0	(2.8)
Foreign currency contracts \| Designated as Hedging Instrument \| Other current assets
Derivatives, Fair Value [Line Items]
Fair Value of derivative assets	0.4	1.0	0
Foreign currency contracts \| Designated as Hedging Instrument \| Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	0	0	(2.6)
Foreign currency contracts \| Not Designated as Hedging Instrument \| Other current assets
Derivatives, Fair Value [Line Items]
Fair Value of derivative assets	0	0.1	0
Foreign currency contracts \| Not Designated as Hedging Instrument \| Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	(0.1)	0	(0.2)
Commodity contracts \| Designated as Hedging Instrument \| Other current assets
Derivatives, Fair Value [Line Items]
Fair Value of derivative assets	0.2	6.3	1.4
Commodity contracts \| Designated as Hedging Instrument \| Other current liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	(1.7)	0	(0.2)
Interest rate swaps \| Designated as Hedging Instrument \| Non-current liabilities
Derivatives, Fair Value [Line Items]
Fair value of derivative liabilities	$ (0.6)	$ 0	$ 0

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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