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Retirement Benefits - Additional Information (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items] |  |  |
Deferred compensation plan, employer percentage of matching | 4.00% |  |
Deferred compensation plan, maximum employer contribution for board officers | $ 50,000 |  |
Defined contribution plan, expenses for material defined contribution plans | 45,000,000 | $ 43,000,000 | $ 36,000,000
Defined contribution plan, discretionary matching contributions made during period | $ 0 | $ 0 | $ 0
Pension Benefit Plans | United States |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Years of service required | 1 year |  |
Discount rate | 5.01% | 5.20% | 2.98%
Company contributions | $ 3,000,000 | $ 3,000,000 |
Net periodic pension cost | (81,000,000) | (64,000,000) | $ (50,000,000)
Actuarial present value of the future death benefits | $ 3,928,000,000 | $ 3,809,000,000 | $ 5,140,000,000
Pension Benefit Plans | Non U.S. |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Discount rate | 4.30% | 4.60% | 1.82%
Company contributions | $ 9,000,000 | $ 8,000,000 |
Net periodic pension cost | (16,000,000) | (51,000,000) | $ (64,000,000)
Actuarial present value of the future death benefits | $ 1,347,000,000 | $ 1,207,000,000 | 1,935,000,000
Postretirement Health Care Benefits Plan |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Retirement age | 65 years |  |
Maximum annual participant subsidy (per participant) | $ 560 |  |
Discount rate | 4.92% | 5.10% |
Company contributions | $ 0 | $ 0 |
Net periodic pension cost | (3,000,000) | (6,000,000) | (12,000,000)
Actuarial present value of the future death benefits | 96,000,000 | 103,000,000 | 78,000,000
Split-dollar Life Insurance Arrangement |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Net periodic pension cost | 5,000,000 | 5,000,000 | $ 5,000,000
Actuarial present value of the future death benefits | $ 52,000,000 | $ 54,000,000 |

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