Consolidated Statements of Comprehensive Income - USD ($) shares in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | |||||
|---|---|---|---|---|---|---|---|
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2024 |
Sep. 30, 2023 |
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| Revenues | |||||||
| Net premiums earned | $ 18,296.7 | $ 14,894.3 | $ 51,654.8 | $ 42,891.8 | |||
| Investment income | 739.5 | 510.2 | 2,042.1 | 1,384.3 | |||
| Net realized gains (losses) on securities: | |||||||
| Net realized gains (losses) on security sales | 68.0 | (66.2) | (304.9) | 38.6 | |||
| Net holding period gains (losses) on securities | 219.4 | (80.5) | 621.6 | 17.9 | |||
| Net impairment losses recognized in earnings | 0.0 | (2.3) | 0.0 | (6.8) | |||
| Total net realized gains (losses) on securities | 287.4 | (149.0) | 316.7 | 49.7 | |||
| Fees and other revenues | 278.1 | 223.7 | 774.4 | 656.6 | |||
| Service revenues | 117.3 | 81.4 | 307.8 | 234.9 | |||
| Total revenues | 19,719.0 | 15,560.6 | 55,095.8 | 45,217.3 | | | |
| Expenses | |||||||
| Losses and loss adjustment expenses | 12,510.3 | 11,387.9 | 36,077.2 | 34,182.0 | |||
| Policy acquisition costs | 1,390.2 | 1,173.2 | 3,930.0 | 3,442.6 | |||
| Other underwriting expenses | 2,669.9 | 1,420.7 | 6,781.1 | 4,710.3 | |||
| Investment expenses | 7.2 | 7.2 | 20.2 | 18.8 | |||
| Service expenses | 126.7 | 91.7 | 333.1 | 264.6 | |||
| Interest expense | 69.9 | 69.7 | 209.1 | 198.7 | | ||
| Total expenses | 16,774.2 | 14,150.4 | 47,350.7 | 42,817.0 | | ||
| Net Income | |||||||
| Income before income taxes | 2,944.8 | 1,410.2 | 7,745.1 | 2,400.3 | | | |
| Provision for income taxes | 611.4 | 288.9 | 1,621.6 | 485.7 | | | |
| Net income | 2,333.4 | 1,121.3 | 6,123.5 | 1,914.6 | | | |
| Other Comprehensive Income (Loss) | |||||||
| Total net unrealized gains (losses) on fixed-maturity securities | 1,561.2 | (388.6) | 1,461.1 | (241.0) | |||
| Net unrealized losses on forecasted transactions | 0.1 | 0.2 | 0.3 | 0.4 | |||
| Foreign currency translation adjustment | 0.1 | 0.0 | (0.1) | 0.2 | |||
| Other comprehensive income (loss) | 1,561.4 | (388.4) | 1,461.3 | (240.4) | |||
| Comprehensive income (loss) | 3,894.8 | 732.9 | 7,584.8 | 1,674.2 | |||
| Computation of Earnings Per Common Share | |||||||
| Net income | 2,333.4 | 1,121.3 | 6,123.5 | 1,914.6 | |||
| Less: Preferred share dividends and other | [1] | 0.0 | 10.4 | 17.0 | 27.2 | ||
| Net income available to common shareholders | $ 2,333.4 | $ 1,110.9 | $ 6,106.5 | $ 1,887.4 | |||
| Average common shares outstanding - Basic (in shares) | 585.6 | 584.8 | 585.5 | 584.9 | |||
| Net effect of dilutive stock-based compensation (in shares) | 2.0 | 2.7 | 2.2 | 2.6 | |||
| Total average equivalent common shares - Diluted (in shares) | 587.6 | 587.5 | 587.7 | 587.5 | |||
| Basic: Earnings per common shares (in dollars per share) | $ 3.98 | $ 1.90 | $ 10.43 | $ 3.23 | |||
| Diluted: Earnings per common share (in dollars per share) | $ 3.97 | $ 1.89 | $ 10.39 | $ 3.21 | |||
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- Definition Fees collected from policyholders and other revenues No definition available.
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- Definition Expenses associated with non-insurance services provided to customers. No definition available.
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- Definition Revenue recognized for non-insurance services provided to customers. No definition available.
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- Definition Credit losses/impairments recognized in earnings for investments in tax credit funds, which are reported in other assets on the balance sheet No definition available.
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- Definition The total amount of expense recognized during the period for future policy benefits, claims and claims adjustment costs, and for selling, general and administrative costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of unrealized and realized gain (loss) on investment in debt and equity securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of realized gain (loss) on investment in debt and equity securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of unrealized gain (loss) on investment in debt and equity securities. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Amount of amortization expense (reversal of expense) for deferred policy acquisition costs. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense for debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount of expenses related to the generation of investment income. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after tax and adjustment, of unrealized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale) and unrealized gain (loss) on investment in debt security measured at amortized cost (held-to-maturity) from transfer to available-for-sale. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition Costs incurred during the period, such as those relating to general administration and policy maintenance that do not vary with and are not primarily related to the acquisition or renewal of insurance contracts. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount, after effects of policies assumed or ceded, of expense related to the provision for policy benefits and costs incurred. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The amount of preferred stock dividends that is an adjustment to net income apportioned to common stockholders. No definition available.
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- Definition Amount, after premiums ceded to other entities and premiums assumed by the entity, of property and casualty premiums earned. Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References No definition available.
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- Definition The sum of dilutive potential common shares or units used in the calculation of the diluted per-share or per-unit computation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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