Consolidated Balance Sheets Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Statement of Financial Position [Abstract] | ||
| Fixed maturity securities, amortized cost | $ 26,265,637 | $ 25,170,368 |
| Fixed maturity securities, allowance for credit loss | 440 | 74 |
| Cumulative effect adjustment resulting from changes in accounting principles | 0 | 161 |
| Cumulative effect adjustment resulting from changes in accounting principles | 41,421 | 42,006 |
| Reinsurance recoverable, allowance for credit loss | $ 6,808 | $ 6,378 |
| Preferred stock, par value (in dollars per share) | $ 0.10 | $ 0.10 |
| Preferred stock issued (in shares) | 5,000,000 | 5,000,000 |
| Preferred stock outstanding (in shares) | 0 | 0 |
| Common stock, par value (in dollar per share) | $ 0.20 | $ 0.20 |
| Common shares authorized (in shares) | 1,875,000,000 | |
| Common shares issued (in shares) | 371,057,782 | 377,155,799 |
| Common shares outstanding (in shares) | 371,057,782 | 377,155,799 |
| Treasury stock issued at cost (in shares) | 422,464,027 | 416,366,010 |
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- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Number of shares issued for nonredeemable preferred shares and preferred shares redeemable solely at option of issuer. Includes, but is not limited to, preferred shares issued, repurchased, and held as treasury shares. Excludes preferred shares classified as debt. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The carrying value as of the balance sheet date of the estimated valuation allowance to reduce gross premiums receivable to net realizable value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of allowance for credit loss on reinsurance recoverable. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Number of previously issued common shares repurchased by the issuing entity and held in treasury. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Debt Securities, Allowance for Credit Loss No definition available.
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- Definition Debt Securities, Available-for-sale and Held-to-maturity, Amortized Cost No definition available.
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