ACQUISITON (Recognizable Identifiable Assets Acquire) (Details) - USD ($) $ in Millions	6 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jan. 30, 2016
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Goodwill	$ 5,023.8	$ 4,982.8	$ 5,021.7
Acquisition cost paid in common stock	$ 0.0	(2,272.4)
Family Dollar
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities [Abstract]
Acquisition cost paid in common stock		$ (2,300.0)