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COMMITMENTS AND CONTINGENT LIABILITIES (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended 72 Months Ended
Sep. 30, 2012
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Aug. 24, 2012
Recipients
Jun. 30, 2011
Tri State Clinical Laboratory Services LLC [Member]
Dec. 31, 2012
Medicaid Billing [Member]
Threatened Litigation [Member]
Subpoenas
Loss Contingencies [Line Items]              
Loss related to litigation settlement   $ 34.5          
Previously recorded litigation reserve in connection with false claims act lawsuit   15.0          
Payment of legal settlement 49.5            
Number of subpoenas received             4
Number of putative class actions   2          
Ownership interest percentage, parent           50.00%  
Number of recipients         39    
Proposed damages per violation         0.0005    
Letters of credit   42.5          
Future minimum rental commitments [Abstract]              
2013   132.3          
2014   81.8          
2015   58.1          
2016   39.7          
2017   20.5          
Thereafter   41.0          
Total minimum lease payments   373.4          
Less: amounts included in restructuring and acquisition related accruals   (12.4)          
Less: non-cancelable sub-lease income   0          
Total minimum operating lease payments   361.0          
Rental expense   $ 235.7 $ 226.0 $ 220.2