v3.19.3.a.u2
Employee Benefits Plans (Details Textual) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Defined Benefit Plan Disclosure [Line Items]      
Other Comprehensive Income, Defined Benefit Plan, Net Prior Service Cost (Credit) Arising During Period, before Tax $ 0 $ 7 $ (2)
Other Postretirement Benefit Plans, Defined Benefit [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements 0 0 0
Defined Benefit Plan Special Termination Benefits 0 0  
Defined Benefit Plan, Actual Return on Plan Assets 0 0  
Defined Benefit Plan, Plan Amendments 0 0  
Other Comprehensive Income, Defined Benefit Plan, Net Prior Service Cost (Credit) Arising During Period, before Tax 0 0  
U.S. | Pension Plans Defined Benefit [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements (62) (196) (131)
Defined Benefit Plan Special Termination Benefits 0 3  
Defined Benefit Plan, Actual Return on Plan Assets 273 (112)  
Defined Benefit Plan, Plan Amendments 0 0  
Other Comprehensive Income, Defined Benefit Plan, Net Prior Service Cost (Credit) Arising During Period, before Tax 0 0  
U.S. | Qualified Plan [Member] | Pension Plans Defined Benefit [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements (62) (196) (131)
Foreign Plan [Member] | Pension Plans Defined Benefit [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements 0 0 $ 0
Defined Benefit Plan Special Termination Benefits 1 0  
Defined Benefit Plan, Actual Return on Plan Assets 529 (106)  
Defined Benefit Plan, Plan Amendments 0 7  
Other Comprehensive Income, Defined Benefit Plan, Net Prior Service Cost (Credit) Arising During Period, before Tax 0 $ 7  
Fair Value, Inputs, Level 3 [Member] | U.S. | Participating interest in annuity contract | Pension Plans Defined Benefit [Member]      
Defined Benefit Plan Disclosure [Line Items]      
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease) 7    
Defined Benefit Plan, Actual Return on Plan Assets $ (4)