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Income Taxes - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Apr. 01, 2024
Tax Credit Carryforward [Line Items] |  |  |  |  |
Deferred tax assets valuation allowance |  | $ 1,061 | $ 689 |  |
Effective tax rate (as a percent) |  | 16.70% | 25.40% | 4.50% |
Tax Cuts and Jobs Act of 2017 transition tax in current accrued income taxes payable |  | $ 211 | $ 189 |  |
Tax Cuts and Jobs Act of 2017 transition tax long term income taxes payable |  |  | 218 |  |
Unrecognized tax benefits that would affect the effective tax rate |  | 686 |  |  |
Interest and penalties related to unrecognized tax benefits, expense (benefit) recognized on a gross basis |  | 25 | 83 | $ (2) |
Interest and penalties related to unrecognized tax benefits, accrued on a gross basis |  | 207 | 183 |  |
Income tax benefits attributable to reduced tax rates or exemptions in foreign locations |  | $ 87 | $ 100 | $ 142 |
EPS impact of reduced tax rates or exemptions in foreign locations (in dollars per share) |  | $ 0.16 | $ 0.18 | $ 0.25 |
Undistributed earnings not permanently reinvested | $ 100 |  |  |  |
Undistributed earnings |  | $ 1,200 |  |  |
Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Health Care Segment |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Ownership interest of outstanding shares ( as a percent) |  |  |  |  | 80.10%
Federal jurisdiction |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers |  | $ 153 |  |  |
Federal jurisdiction | Minimum |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years) |  | 5 years |  |  |
Federal jurisdiction | Maximum |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years) |  | 20 years |  |  |
State jurisdiction |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers |  | $ 68 |  |  |
State jurisdiction | Minimum |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years) |  | 5 years |  |  |
International jurisdiction |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers |  | $ 52 |  |  |
International jurisdiction | Minimum |  |  |  |  |
Tax Credit Carryforward [Line Items] |  |  |  |  |
Tax effected operating loss, capital loss, and tax credit carryovers, expiration date (in years) |  | 1 year |  |  |

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