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Pensions Benefit Plans and Other Postretirement Benefits - Minimum Funding Requirements and Estimated Future Benefit Payments (Details) - Funded Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2021
Defined Benefit Plan Disclosure        
Defined contribution plans for salaried and hourly U.S. employees $ 34 $ 33 $ 36  
Pension Benefit Plans | U.S.        
Estimated future benefit payments        
2021 99      
2022 100      
2023 95      
2024 96      
2025 93      
2026 - 2030 445      
Pension Benefit Plans | Non-U.S.        
Estimated future benefit payments        
2021 41      
2022 45      
2023 46      
2024 47      
2025 48      
2026 - 2030 266      
Pension Benefit Plans | Non-U.S. | Forecast        
Defined Benefit Plan Disclosure        
Contribution to defined benefit plan       $ 60
Other Post-retirement Benefits | U.S.        
Estimated future benefit payments        
2021 2      
2022 2      
2023 2      
2024 2      
2025 2      
2026 - 2030 10      
Other Post-retirement Benefits | Non-U.S.        
Estimated future benefit payments        
2021 3      
2022 3      
2023 3      
2024 3      
2025 3      
2026 - 2030 $ 16