CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Oct. 29, 2011	Oct. 30, 2010	Oct. 29, 2011	Oct. 30, 2010
CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS [Abstract]
Net sales	$ 1,596.6	$ 1,426.6	$ 4,684.9	$ 4,157.1
Cost of sales, excluding non-cash beginning inventory adjustment	1,036.0	920.6	3,041.1	2,691.1
Non-cash beginning inventory adjustment	0	0	0	26.3
Gross profit	560.6	506.0	1,643.8	1,439.7
Selling, general and administrative expenses	395.7	365.1	1,163.7	1,068.4
Operating income	164.9	140.9	480.1	371.3
Interest expense, net	0.6	1.6	2.2	4.6
Other (income) expense, net	0.1	(5.4)	(0.1)	(5.1)
Income before income taxes	164.2	144.7	478.0	371.8
Provision for income taxes	59.7	51.5	177.6	137.0
Net income	$ 104.5	$ 93.2	$ 300.4	$ 234.8
Net income per share:
Basic (in dollars per share)	$ 0.87	$ 0.73	$ 2.47	$ 1.84
Diluted (in dollars per share)	$ 0.87	$ 0.73	$ 2.45	$ 1.82