ACQUISITON (Recognizable Identifiable Assets Acquire) (Details) - USD ($) $ in Millions  | 
6 Months Ended | ||
|---|---|---|---|
Jul. 30, 2016  | 
Aug. 01, 2015  | 
Jan. 30, 2016  | 
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| 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) | ||
| X | ||||||||||
- Definition Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
- References No definition available. 
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| X | ||||||||||
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
- Details 
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