Fair Value Measurements (Financial Assets And Liabilities At Fair Value, Measure On A Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Millions	Jul. 30, 2011		Jan. 29, 2011		Jul. 31, 2010
Quoted Prices In Active Markets (Level 1) [Member] | Money Market Funds [Member]
Financial Assets	$ 137.5		$ 174.8		$ 233.0
Quoted Prices In Active Markets (Level 1) [Member] | Foreign Currency Contracts [Member]
Financial Assets				[1]
Financial Liabilities		[1]		[1]		[1]
Quoted Prices In Active Markets (Level 1) [Member] | Interest Rate Contract [Member]
Financial Liabilities		[2]		[2]		[2]
Significant Observable Other Inputs (Level 2) [Member] | Money Market Funds [Member]
Financial Assets
Significant Observable Other Inputs (Level 2) [Member] | Foreign Currency Contracts [Member]
Financial Assets			0.1	[1]
Financial Liabilities	0.3	[1]	0.4	[1]	0.5	[1]
Significant Observable Other Inputs (Level 2) [Member] | Interest Rate Contract [Member]
Financial Liabilities	3.3	[2]	7.4	[2]	10.9	[2]
Significant Unobservable Inputs (Level 3) [Member] | Money Market Funds [Member]
Financial Assets
Significant Unobservable Inputs (Level 3) [Member] | Foreign Currency Contracts [Member]
Financial Assets				[1]
Financial Liabilities		[1]		[1]		[1]
Significant Unobservable Inputs (Level 3) [Member] | Interest Rate Contract [Member]
Financial Liabilities		[2]		[2]		[2]
Money Market Funds [Member]
Financial Assets	137.5		174.8		233.0
Foreign Currency Contracts [Member]
Financial Assets			0.1	[1]
Financial Liabilities	0.3	[1]	0.4	[1]	0.5	[1]
Interest Rate Contract [Member]
Financial Liabilities	$ 3.3	[2]	$ 7.4	[2]	$ 10.9	[2]

[1] The fair value of the foreign currency contracts are determined using a mark-to-market technique based on observable foreign currency exchange rates and adjusting for credit risk.

[2] The fair value of the interest rate contract is determined using a mark-to-market valuation technique based on an observable interest rate yield curve and adjusting for credit risk.