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Pensions Benefit Plans and Other Postretirement Benefits - U.S. Plan Assets By Hierarchy (Details) - Pension Benefit Plans - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | --- | ---
Minimum |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 10.00% |  |
U.S. | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 1,168 | $ 1,324 | $ 1,215
Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 923 | 929 | $ 947
Cash and cash equivalents | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 43 | 31 |
Equity securities | U.S. | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 37.00% |  |
Equity securities | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 5.00% |  |
Debt securities | U.S. | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 60.00% |  |
Debt securities | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 49 | 38 |
Percentage of pension plan assets | 68.00% |  |
Other | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 24 | 26 |
Real estate and other | U.S. | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 3.00% |  |
Real estate and other | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 27.00% |  |
Level 1 | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 78 | 67 |
Level 1 | Cash and cash equivalents | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 43 | 31 |
Level 1 | Debt securities | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 35 | 36 |
Level 2 | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 38 | 28 |
Level 2 | Debt securities | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 14 | 2 |
Level 2 | Other | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 24 | 26 |
Fair Value Measured at Net Asset Value | Non-U.S. Pension Plans | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 807 | $ 834 |

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