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FAIR VALUE MEASUREMENTS FAIR VALUE MEASUREMENTS (Investments) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jul. 01, 2017
Jul. 02, 2016
Jul. 01, 2017
Jul. 02, 2016
Fair Value Disclosures [Abstract]        
Gain (Loss) on Investments $ 0.5 $ (0.7) $ 1.2 $ 0.3