Policyholders' Liabilities (Future Policy Benefits) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Liability for Future Policy Benefit, before Reinsurance [Abstract]
Life insurance	$ 17,842,327	$ 18,095,368
Individual annuities and supplementary contracts	781,605	740,941
Other contract liabilities	4,580,601	9,090,720
Total future policy benefits	$ 23,204,533	$ 27,927,029

Amount, before effect of reinsurance, of present value of future benefit to be paid to or on behalf of policyholder and related expense less present value of future net premium receivable under insurance contract.

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Amount of accrued obligation to policyholders that relates to insured events under individual and group annuities and supplementary insurance contracts.

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Amount of accrued obligation to policyholders that relates to insured events under long-term life insurance contracts.

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Amount of accrued obligation to policyholders that relates to insured events under other insurance contracts.

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