Consolidated Statements Of Shareholders' Equity - USD ($) $ in Millions	Total	Common shares at par value	Additional paid-in- capital	Other reserves	Treasury shares	Retained earnings	Accumulated other comprehensive (loss) income
Balance at Feb. 02, 2013	$ 2,329.9	$ 15.7	$ 246.3	$ 0.4	$ (260.0)	$ 2,503.2	$ (175.7)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	368.0	0.0	0.0	0.0	0.0	368.0	0.0
Other comprehensive loss	(2.8)	0.0	0.0	0.0	0.0	0.0	(2.8)
Dividends	(48.2)	0.0	0.0	0.0	0.0	(48.2)	0.0
Repurchase of common shares	(104.7)	0.0	0.0	0.0	(104.7)	0.0	0.0
Net settlement of equity based awards	(2.7)	0.0	(1.7)	0.0	7.1	(8.1)	0.0
Share options exercised	9.2	0.0	(0.2)	0.0	11.4	(2.0)	0.0
Share-based compensation expense	14.4	0.0	14.4	0.0	0.0	0.0	0.0
Balance at Feb. 01, 2014	2,563.1	15.7	258.8	0.4	(346.2)	2,812.9	(178.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	381.3	0.0	0.0	0.0	0.0	381.3	0.0
Other comprehensive loss	(58.1)	0.0	0.0	0.0	0.0	0.0	(58.1)
Dividends	(57.7)	0.0	0.0	0.0	0.0	(57.7)	0.0
Repurchase of common shares	(29.8)	0.0	0.0	0.0	(29.8)	0.0	0.0
Net settlement of equity based awards	(6.6)	0.0	(3.0)	0.0	(3.2)	(0.4)	0.0
Share options exercised	6.1	0.0	(2.7)	0.0	9.2	(0.4)	0.0
Share-based compensation expense	12.1	0.0	12.1	0.0	0.0	0.0	0.0
Balance at Jan. 31, 2015	2,810.4	15.7	265.2	0.4	(370.0)	3,135.7	(236.6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	467.9	0.0	0.0	0.0	0.0	467.9	0.0
Other comprehensive loss	(37.5)	0.0	0.0	0.0	0.0	0.0	(37.5)
Dividends	(70.2)	0.0	0.0	0.0	0.0	(70.2)	0.0
Repurchase of common shares	(130.0)	0.0	0.0	0.0	(130.0)	0.0	0.0
Net settlement of equity based awards	(1.3)	0.0	(1.5)	0.0	(1.1)	1.3	0.0
Share options exercised	5.0	0.0	(0.2)	0.0	5.3	(0.1)	0.0
Share-based compensation expense	16.4	0.0	16.4	0.0	0.0	0.0	0.0
Balance at Jan. 30, 2016	$ 3,060.7	$ 15.7	$ 279.9	$ 0.4	$ (495.8)	$ 3,534.6	$ (274.1)