Fair Value and Presentation of Derivative Instruments In Condensed Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	Jul. 28, 2012	Jan. 28, 2012	Jul. 30, 2011
Derivatives, Fair Value [Line Items]
Total derivative assets	$ 4.4	$ 17.3	$ 22.7
Total derivative liabilities	(7.8)	(1.2)	(1.8)
Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Total derivative liabilities	(6.5)	(1.2)	(1.5)
Designated as Hedging Instrument | Other Current Assets | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Total derivative assets	1.0	1.1
Designated as Hedging Instrument | Other Current Assets | Commodity Contract
Derivatives, Fair Value [Line Items]
Total derivative assets	3.1	16.1	20.8
Designated as Hedging Instrument | Other Assets | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Total derivative assets	0.2	0.1
Designated as Hedging Instrument | Other Assets | Commodity Contract
Derivatives, Fair Value [Line Items]
Total derivative assets	0.1		1.9
Designated as Hedging Instrument | Other Current Liabilities | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Total derivative liabilities	(0.2)	(0.2)	(1.4)
Designated as Hedging Instrument | Other Current Liabilities | Commodity Contract
Derivatives, Fair Value [Line Items]
Total derivative liabilities	(6.3)	(1.0)
Designated as Hedging Instrument | Other Liabilities | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Total derivative liabilities			(0.1)
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Total derivative liabilities	(1.3)		(0.3)
Not Designated as Hedging Instrument | Other Current Liabilities | Foreign Exchange Contract
Derivatives, Fair Value [Line Items]
Total derivative liabilities	$ (1.3)		$ (0.3)