Borrowings and Financing Activities - Additional Information (Details) $ in Millions |
3 Months Ended | |
|---|---|---|
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Mar. 31, 2026
USD ($)
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Dec. 31, 2025
USD ($)
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| Letter of Credit | ||
| Debt Instrument [Line Items] | ||
| Line of Credit | $ 620 | |
| Total fixed-maturities available for sale | Fixed maturities AFS and trading securities | ||
| Debt Instrument [Line Items] | ||
| FHLB, collateral pledged | $ 53 | $ 43 |
| FHLB Advances | Minimum | ||
| Debt Instrument [Line Items] | ||
| FHLB, ratio of market value of collateral to advances | 103 | |
| FHLB Advances | Maximum | ||
| Debt Instrument [Line Items] | ||
| FHLB, ratio of market value of collateral to advances | 114 | |
| Revolving Credit Facility | ||
| Debt Instrument [Line Items] | ||
| Borrowed debt | $ 200 | |
| Repayment of debt | 50 | |
| Revolving Credit Facility | Unsecured Revolving Credit Facility, Expiration Date 2026 | ||
| Debt Instrument [Line Items] | ||
| Current borrowing capacity | $ 500 |
| X | ||||||||||
- Definition The ratio of the market value of the collateralized eligible assets to the principal balance of the FHLB advances No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of the collateral pledged in support of federal home loan bank advances outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of cash outflow for short-term and long-term debt. Excludes payment of lease obligation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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