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EMPLOYEE BENEFITS (Details 2) (Pension plan, USD $)
In Millions, unless otherwise specified
1 Months Ended
Jan. 31, 2012
May 31, 2011
Jan. 31, 2011
property
Sep. 23, 2012
Pension plan
       
Contribution of Cash and Real Property to Qualified Defined Benefit Plan        
Real property locations contributed, number     7  
Contribution     $ 49.7  
Term of leases entered into for property contributed to pension plan     10 years  
Reduction in pension obligation     49.7  
Balance obligation       46.8
Value of contributions to plan $ 40.0 $ 163.0