Consolidated Statements Of Accumulated Other Comprehensive Income/(Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Beginning Balance	$ 1,939.0	$ 1,703.6	$ 1,522.7
Other comprehensive income/(loss):
Foreign currency translation	(3.9)	(1.9)	21.4
Ending Balance	2,279.1	1,939.0	1,703.6
Foreign Currency Translation [Member]
Beginning Balance	(145.0)	(143.1)	(164.5)
Other comprehensive income/(loss):
Foreign currency translation	(3.9)	(1.9)	21.4
Ending Balance	(148.9)	(145.0)	(143.1)
Changes In Fair Value Of Derivative Instruments [Member]
Beginning Balance	5.9	11.1	18.1
Other comprehensive income/(loss):
Changes in fair value of derivative instruments	25.1	(7.7)	(8.6)
Deferred tax on items recognized in equity	(8.9)	2.5	1.6
Ending Balance	22.1	5.9	11.1
Pension Plan Actuarial (Losses)/Gains [Member]
Beginning Balance	(46.0)	(61.2)	(64.8)
Other comprehensive income/(loss):
Actuarial gain/(loss)	(8.2)	21.0	5.0
Deferred tax on items recognized in equity	2.7	(5.8)	(1.4)
Ending Balance	(51.5)	(46.0)	(61.2)
Pension Plan Prior Service (Cost)/Credit [Member]
Beginning Balance	14.3	15.0	15.7
Other comprehensive income/(loss):
Prior service cost	6.5	(1.0)	(1.0)
Deferred tax on items recognized in equity	(1.7)	0.3	0.3
Ending Balance	19.1	14.3	15.0
Accumulated Other Comprehensive (Loss)/Income [Member]
Beginning Balance	(170.8)	(178.2)	(195.5)
Other comprehensive income/(loss):
Foreign currency translation	(3.9)	(1.9)	21.4
Changes in fair value of derivative instruments	25.1	(7.7)	(8.6)
Actuarial gain/(loss)	(8.2)	21.0	5.0
Prior service cost	6.5	(1.0)	(1.0)
Deferred tax on items recognized in equity	(7.9)	(3.0)	0.5
Total other comprehensive income/(loss)	11.6	7.4	17.3
Ending Balance	$ (159.2)	$ (170.8)	$ (178.2)