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, 2019	$ 1,201.6	$ 12.6	$ 236.5	$ 0.4	$ (1,027.3)	$ 2,282.2	$ (302.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	105.5					105.5
Other comprehensive income	9.0						9.0
Dividends on common shares	(77.4)					(77.4)
Dividends on redeemable convertible preferred shares	(32.9)					(32.9)
Net settlement of equity based awards	(0.1)		(8.0)		42.4	(34.5)
Share-based compensation expense	16.9		16.9
Balance at Feb. 01, 2020	1,222.6	12.6	245.4	0.4	(984.9)	2,242.9	(293.8)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	(15.2)					(15.2)
Other comprehensive income	3.3						3.3
Dividends on redeemable convertible preferred shares	(33.5)					(33.5)
Net settlement of equity based awards	(1.4)		(1.1)		4.7	(5.0)
Share-based compensation expense	14.5		14.5
Balance at Jan. 30, 2021	1,190.3	12.6	258.8	0.4	(980.2)	2,189.2	(290.5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	769.9					769.9
Other comprehensive income	(60.4)						(60.4)
Dividends on common shares	(28.0)					(28.0)
Dividends on redeemable convertible preferred shares	(34.5)					(34.5)
Repurchase of common shares	(311.8)		(50.0)		(261.8)
Net settlement of equity based awards	(7.3)		(23.4)		35.3	(19.2)
Share-based compensation expense	45.8		45.8
Balance at Jan. 29, 2022	$ 1,564.0	$ 12.6	$ 231.2	$ 0.4	$ (1,206.7)	$ 2,877.4	$ (350.9)