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Pension, Post-Retirement and Post-Employment Plans (Details) - Change In Fair Value of Plan Assets level 3 - USD ($)
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 63,900,000 $ 34,800,000
Changes in fair value 6,800,000 29,100,000
Purchases, sales and settlements 0 0
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Ending balance 70,700,000 63,900,000
Insurance Buy In Policy [Member]    
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance 83,200,000 0
Changes in fair value (6,000,000) 0
Purchases, sales and settlements [1] 0 83,200,000
Transfers into Level 3 0 0
Transfers out of Level 3 0 0
Ending balance $ 77,200,000 $ 83,200,000
[1] There were no purchases, sales or settlements, on a gross basis, for the year ended December 31, 2015. There were no sales or settlements, on a gross basis, for the year ended December 31, 2014.