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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 |  |  |

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