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PENSION AND POSTRETIREMENT PLANS Defined Contribution Plans (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]        
Non Elective Contribution     3.00%  
Defined Contribution Plan, Cost Recognized $ 13.3 $ 12.8 $ 26.2 $ 26.2
Covance [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Contribution Plan, Cost Recognized $ 11.1   15.8  
Postretirement Health Coverage [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Defined Benefit Plan, Net Periodic Benefit Cost     $ 0.1