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(Pension Allocations By Type Of Fund And Target Allocations) (Details) - U.S. Plans
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]    
Actual Allocation Percentage 100.00% 100.00%
Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Actual Allocation Percentage 37.00% 32.00%
Fixed Income Funds [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Actual Allocation Percentage 50.00% 51.00%
Real Estate Funds [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Actual Allocation Percentage 8.00% 11.00%
Other Assets [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Actual Allocation Percentage 5.00% 6.00%
Minimum [Member] | Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .32  
Minimum [Member] | Fixed Income Funds [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .44  
Minimum [Member] | Real Estate Funds [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .05  
Minimum [Member] | Other Assets [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .03  
Maximum [Member] | Equity Securities [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .43  
Maximum [Member] | Fixed Income Funds [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .56  
Maximum [Member] | Real Estate Funds [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .11  
Maximum [Member] | Other Assets [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Defined Benefit Plan, Plan Assets, Investment Policy and Strategy, Description .08