Condensed Consolidated Income Statements (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Apr. 29, 2017	Apr. 30, 2016
Income Statement [Abstract]
Sales	$ 1,403.4	$ 1,578.9
Cost of sales	(912.2)	(978.5)
Gross margin	491.2	600.4
Selling, general and administrative expenses	(452.8)	(462.7)
Other operating income, net	76.9	74.3
Operating income	115.3	212.0
Interest expense, net	(12.6)	(11.8)
Income before income taxes	102.7	200.2
Income taxes	(24.2)	(53.4)
Net income	78.5	146.8
Dividends on redeemable convertible preferred shares	(8.2)	0.0
Net income attributable to common shareholders	$ 70.3	$ 146.8
Earnings per common share:
Earnings per share: basic (usd per share)	$ 1.03	$ 1.87
Earnings per share: diluted (usd per share)	$ 1.03	$ 1.87
Weighted average common shares outstanding:
Weighted average common shares outstanding: basic (shares)	68.1	78.6
Weighted average common shares outstanding: diluted (shares)	68.2	78.7
Dividends declared per common share (usd per share)	$ 0.31	$ 0.26