Investments (Mortgage Loans - Narrative) (Details) - Mortgage Loans $ in Millions |
3 Months Ended | 6 Months Ended | |||
|---|---|---|---|---|---|
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
USD ($)
|
Jun. 30, 2026
USD ($)
portfolioSegment
|
Jun. 30, 2025
USD ($)
|
Dec. 31, 2025
USD ($)
|
|
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Accrued interest receivable | $ 128 | $ 128 | $ 132 | ||
| Number of investment portfolio segments | portfolioSegment | 3 | ||||
| Financing receivables in nonaccrual status with no allowance for credit losses | $ 50 | $ 50 | $ 54 | ||
| Financing receivables in nonaccrual status, investment income | $ 3 | $ 3 | |||
| Minimum | Performing | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Financing receivable, before allowance for credit losses by performance status as a percentage of financing receivables, before allowance for credit losses | 99.00% | 99.00% | 99.00% | ||
| Residential | |||||
| Accounts, Notes, Loans and Financing Receivable [Line Items] | |||||
| Financing receivables purchased from third parties | $ 426 | $ 379 | $ 721 | $ 557 | |