Future Policy Benefits (Details) (Narrative) - Americas [Member] - Other Segments - USD ($) $ in Millions |
Jun. 30, 2026 |
Jun. 30, 2025 |
|---|---|---|
| Life Insurance Product Line [Member] | ||
| Liability for Future Policy Benefit, by Product Segment [Line Items] | ||
| Changes In Cash Flow Assumptions | $ 0 | $ 0 |
| Liability for Future Policy Benefit, after Reinsurance | 12,039 | 11,624 |
| Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance | (840) | (788) |
| Insurance, Other | ||
| Liability for Future Policy Benefit, by Product Segment [Line Items] | ||
| Changes In Cash Flow Assumptions | 0 | 0 |
| Liability for Future Policy Benefit, after Reinsurance | 7,746 | 8,415 |
| Liability for Future Policy Benefit, Reinsurance Recoverable, after Allowance | $ (2,940) | $ (1,354) |