CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 31, 2015	Nov. 01, 2014	Oct. 31, 2015	Nov. 01, 2014
Income Statement [Abstract]
Net sales	$ 4,945.2	$ 2,095.2	$ 10,133.1	$ 6,126.6
Cost of sales	3,545.2	1,369.9	7,129.0	4,010.7
Gross profit	1,400.0	725.3	3,004.1	2,115.9
Selling, general and administrative expenses	1,176.3	505.6	2,424.2	1,459.3
Operating income	223.7	219.7	579.9	656.6
Interest expense, net	98.4	9.3	484.6	25.8
Other (income) expense, net	0.6	1.1	(0.4)	1.2
Income before income taxes	124.7	209.3	95.7	629.6
Income tax expense	42.8	76.3	42.3	236.9
Net income	$ 81.9	$ 133.0	$ 53.4	$ 392.7
Net income per share:
Basic net income per share (usd per share)	$ 0.35	$ 0.65	$ 0.24	$ 1.91
Diluted net income per share (usd per share)	$ 0.35	$ 0.64	$ 0.24	$ 1.90