Pension Plans - Change in UK Plan Assets (Details) - Foreign Pension Plan, Defined Benefit - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value at beginning of year	$ 295.8	$ 282.6
Actual return on UK Plan assets	(4.8)	43.9
Employer contributions	2.5	4.2
Members’ contributions	0.7	0.7
Benefits paid	(11.2)	(10.2)
Foreign currency changes	(16.8)	(25.4)
Fair value at end of year	$ 266.2	$ 295.8