Income Taxes - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Income Taxes [Line Items] | |||
| Deferred tax liability attributable to temporary differences in other comprehensive income (loss) | $ 124 | ||
| Internal corporate reorganization | 1,920 | $ 0 | $ 0 |
| Income taxes receivable, federal, current | 2,000 | $ 0 | |
| Unrecognized tax benefits that would impact effective tax rate | 2,200 | ||
| Capital Loss Carryforward, Internal Corporate Reorganization | |||
| Income Taxes [Line Items] | |||
| Tax credit carryforward | 9,100 | ||
| Income taxes receivable | 1,900 | ||
| Internal corporate reorganization | 1,900 | ||
| Foreign Tax Jurisdiction | |||
| Income Taxes [Line Items] | |||
| Operating loss carryforwards | $ 11,800 | ||