v3.25.4

Insurance - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Insurance - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Insurance [Line Items]
Workers' compensation insurance discount rate	4.50%	4.50%
Amortization of deferred policy acquisition costs	$ 775	$ 766	$ 720
Carrying value of cash and securities owned by U.S.-based insurance subsidiaries on deposit	1,230
Dividends	608	791	$ 687
Dividends payments without violating the most restrictive debt covenants, minimum	1,800
Maximum
Insurance [Line Items]
Maximum amount of dividends available to be paid by insurance subsidiaries to AFG without prior approval of regulatory authorities	1,080
Workers' Compensation Insurance
Insurance [Line Items]
Impact of discount on workers' compensation policies	$ 8
Impact of discount on workers' compensation policies, prior year amount		$ 8

Amount of dividends that could be paid as of the balance sheet date without violating the most restrictive debt covenants.

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Insurance

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Carrying amount of cash and investment securities on deposit with state regulatory authorities in connection with capital requirements.

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Amount of amortization expense (reversal of expense) for deferred policy acquisition costs.

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Amount of cumulative discount related to the time value of money deducted from short-duration insurance contract liabilities that are reported at present value.

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Amount of dividends that can be declared or paid without approval of regulatory agency.

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Percent discount applied to worker's compensation reserve liability to reduce the reserve to present value.

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AMERICAN FINANCIAL GROUP INC 10-K