Quarterly report pursuant to Section 13 or 15(d)

FAIR VALUE MEASUREMENTS Fair Value Measurements (Details)

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FAIR VALUE MEASUREMENTS Fair Value Measurements (Details) - USD ($)
$ in Millions
Aug. 01, 2015
Jan. 31, 2015
Aug. 02, 2014
Fair Value Disclosures [Abstract]      
Cash and Cash Equivalents, Fair Value Disclosure $ 1,302.5   $ 467.7
Short-term Investments 4.0 $ 0.0 0.0
Restricted Investments Fair Value 122.0   87.9
Diesel Fuel Swaps Liability 3.5   0.1
Long-term Debt, Fair Value $ 8,700.0   $ 723.9