Statutory Financial Data and Restrictions - Narrative (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Statutory Accounting Practices [Line Items] | ||
| Statutory capital and surplus considered insurance subsidiaries | $ 29,200 | |
| Life Insurance Companies | ||
| Statutory Accounting Practices [Line Items] | ||
| Increase in statutory surplus due to permitted practice | $ 1,700 | $ 1,000 |
| NY | ||
| Statutory Accounting Practices [Line Items] | ||
| Surplus not available for dividends (as a percent) | 10.00% | |
| Adjusted net investment income not available for dividends (as a percent) | 100.00% | |