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Income taxes - Deferred income taxes (Detail) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Deferred income tax liabilities: |  |
Investments, including unrealized appreciation | $ 47,158 | $ 56,766
Deferred charges retroactive reinsurance | 1,847 | 1,994
Property, plant and equipment and equipment held for lease | 33,590 | 32,991
Goodwill and other intangible assets | 7,498 | 7,546
Other | 5,043 | 4,452
Deferred income tax liabilities | 95,136 | 103,749
Deferred income tax assets: |  |
Unpaid losses and loss adjustment expenses | 1,226 | 1,255
Unearned premiums | 1,284 | 1,285
Accrued liabilities | 2,713 | 2,626
Regulatory liabilities | 1,364 | 1,248
Deferred revenue | 2,539 | 2,282
Other | 2,447 | 2,709
Deferred income tax assets | 11,573 | 11,405
Net deferred income tax liability | $ 83,563 | $ 92,344

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- Definition Includes (a) The amount as of the balance sheet date of the estimated future tax effects arising from unrealized gains or losses on investments in debt and equity securities categorized as available for sale. Such unrealized holding gains/losses increase/decrease the carrying value of the asset recorded for financial reporting purposes, but not for tax purposes. (b) The amount as of the balance sheet date of the estimated future tax effects attributable to the difference between the tax basis and the basis in accordance with generally accepted accounting principles in debt and equity securities categorized as available for sale. + References No definition available. + Details
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