Investments (Changes in Net Unrealized Investment Gains (Losses)) (Details) $ in Millions |
3 Months Ended |
|---|---|
|
Mar. 31, 2026
USD ($)
| |
| Investments, Debt and Equity Securities [Abstract] | |
| Unrealized investment gains (losses), beginning of period | $ (3,241) |
| Unrealized investment gains (losses) during the period | (831) |
| Unrealized investment gains (losses) relating to: Future policy benefits | 7 |
| Unrealized investment gains (losses) relating to: Deferred income tax benefit (expense) | 173 |
| Unrealized investment gains (losses), end of period | (3,892) |
| Change in net unrealized investment gains (losses) | $ (651) |