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Pension and Other Postretirement Benefits (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Other Postretirement Benefits    
Defined Benefit Plan Disclosure [Line Items]    
Interest cost $ 1 $ 1
Recognized prior service credit (6) (9)
Recognized net loss 1 1
Net periodic cost (benefit) (4) (7)
U.S. | Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 5 5
Interest cost 10 13
Expected return on plan assets (18) (18)
Recognized net loss 14 14
Net periodic cost (benefit) 11 14
Pension Benefits - Non-U.S. Plans | Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Service cost 3 4
Interest cost 14 19
Expected return on plan assets (31) (35)
Pension settlements and curtailments 0 (14)
Defined Benefit Plan, Benefit Obligation, (Increase) Decrease for Settlement 37 0
Recognized net loss 9 10
Net periodic cost (benefit) $ 32 $ (16)