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Equity - Dividend Restrictions, Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2023
Class of Stock [Line Items] |  |
Percent of insurer's policyholder surplus available for dividends | 10.00% |
Statutory Dividend Payment Restrictions Disclosure | There are no current restrictions on HFSG Holding Company's ability to pay dividends to its stockholders. |
HLA |  |
Class of Stock [Line Items] |  |
Proceeds from Dividends Received | $ 240 |
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval | 408 |
HLA | Scenario, Forecast |  |
Class of Stock [Line Items] |  |
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval |  | $ 400
P&C Subsidiaries |  |
Class of Stock [Line Items] |  |
Proceeds from Dividends Received | 1,400 |
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval | 1,800 |
P&C Subsidiaries | AmountAvailableAfterStateDepositAndRegulatoryCapitalRequirements |  |
Class of Stock [Line Items] |  |
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval | 1,500 |
P&C Subsidiaries | Scenario, Forecast |  |
Class of Stock [Line Items] |  |
Statutory Accounting Practices, Statutory Amount Available for Dividend Payments with Regulatory Approval |  | $ 1,500
Mutual Fund [Member] |  |
Class of Stock [Line Items] |  |
Proceeds from Dividends Received | 157 |
Harford Holdings, Inc. [Member] |  |
Class of Stock [Line Items] |  |
Proceeds from Dividends Received | 50 |
P&C Runoff Subsidiaries |  |
Class of Stock [Line Items] |  |
Proceeds from Dividends Received | $ 395 |

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