Earnings per share (Tables)

3 Months Ended

Apr. 30, 2016

Earnings Per Share [Abstract]

Earnings per share

	13 weeks ended
(in millions, except per share amounts)	April 30, 2016		May 2, 2015
Net income	$	146.8	$	118.8
Basic weighted average number of shares outstanding	78.6		80.0
Dilutive effect of share awards	0.1		0.2
Diluted weighted average number of shares outstanding	78.7		80.2
Earnings per share – basic	$	1.87	$	1.49
Earnings per share – diluted	$	1.87	$	1.48