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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, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
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 | $ 812 | $ 1,168 | $ 1,324
Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 547 | 923 | $ 929
Cash and cash equivalents | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 9 | 43 |
Equity securities | U.S. | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 37.00% |  |
Equity securities | Foreign | 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 | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 29 | 49 |
Percentage of pension plan assets | 77.00% |  |
Other | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 23 | 24 |
Real estate and other | U.S. | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 3.00% |  |
Real estate and other | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Percentage of pension plan assets | 18.00% |  |
Level 1 | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 38 | 78 |
Level 1 | Cash and cash equivalents | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 9 | 43 |
Level 1 | Debt securities | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 29 | 35 |
Level 2 | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 23 | 38 |
Level 2 | Debt securities | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value |  | 14 |
Level 2 | Other | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | 23 | 24 |
Fair Value Measured at Net Asset Value | Foreign | Funded Plan |  |  |
Defined Benefit Plan Disclosure |  |  |
Plan assets at fair value | $ 486 | $ 807 |

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