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Pension Plans and Other Benefits - Plan Asset Allocations (Details) - Foreign Hourly Plans [Member]
Dec. 31, 2018
Fixed Income Securities  
Summary Target Allocation Strategy  
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 60.00%
Return Seeking Investments  
Summary Target Allocation Strategy  
Defined Benefit Plan, Plan Assets, Target Allocation, Percentage 40.00%