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Pensions Benefit Plans and Other Postretirement Benefits - Minimum Funding Requirements and Estimated Future Benefit Payments (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2020
Defined Benefit Plan Disclosure        
Defined contribution plans for salaried and hourly U.S. employees $ 33 $ 36 $ 33  
U.S. | Pension Benefit Plans        
Estimated future benefit payments        
2020 97      
2021 96      
2022 96      
2023 94      
2024 94      
2025 - 2029 448      
U.S. | Other Postretirement Benefits        
Estimated future benefit payments        
2020 6      
2021 6      
2022 6      
2023 5      
2024 5      
2025 - 2029 21      
Non-U.S. | Pension Benefit Plans        
Estimated future benefit payments        
2020 55      
2021 53      
2022 57      
2023 59      
2024 59      
2025 - 2029 313      
Non-U.S. | Pension Benefit Plans | Forecast        
Defined Benefit Plan Disclosure        
Contribution to defined benefit plan       $ 52
Non-U.S. | Other Postretirement Benefits        
Estimated future benefit payments        
2020 3      
2021 3      
2022 3      
2023 3      
2024 3      
2025 - 2029 $ 15