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SCHEDULE II — CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT - Narrative (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
May 31, 2023 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Debt Instrument [Line Items] |  |  |  |
Other assets |  | $ 941,000,000 | $ 930,000,000 |
Other income (expense) |  | (14,000,000) | (102,000,000) | $ 37,000,000
Subordinated Debt |  | 218,000,000 | 218,000,000 |
Parent Company |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Issuance of long term notes receivable - affiliated | $ 100,000,000 | 100,000,000 | 0 | 0
Long-term note, stated interest rate | 3.72% |  |  |
Proceeds from repayment of long term notes receivable - affiliated |  | 50,000,000 | 0 | 0
Long-term notes receivable, affiliated |  | 50,000,000 | 0 |
Other assets |  | 46,000,000 | 43,000,000 |
Other income (expense) |  | 8,000,000 | 0 | 0
Parent Company | Notes Payable Affiliated | 1.69% Matures December 2028 | Affiliated Entity |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument face amount |  | $ 300,000,000 |  |
Debt instrument, stated interest rate |  | 1.69% |  |
Subordinated Debt |  | $ 0 |  |
Parent Company | Notes Payable Affiliated | 1.00% Matures August 2030 | Affiliated Entity |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument face amount |  | $ 200,000,000 |  |
Debt instrument, stated interest rate |  | 1.00% |  |
Subordinated Debt |  | $ 0 |  |
Parent Company | Notes Payable Affiliated | 3.11% Matures June 2052 | Affiliated Entity |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument face amount |  | $ 215,000,000 |  |
Debt instrument, stated interest rate |  | 3.11% |  |
Subordinated Debt |  | $ 0 |  |
Parent Company | Notes Payable Affiliated | 4.34% Matures June 2052 | Affiliated Entity |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument face amount |  | $ 125,000,000 |  |
Debt instrument, stated interest rate |  | 4.34% |  |
Subordinated Debt |  | $ 0 |  |
Parent Company | Notes Payable Affiliated | 4.34% Matures December 2052 - 1 | Affiliated Entity |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument face amount |  | $ 125,000,000 |  |
Debt instrument, stated interest rate |  | 4.34% |  |
Subordinated Debt |  | $ 0 |  |
Parent Company | Notes Payable Affiliated | 4.34% Matures December 2052 - 2 | Affiliated Entity |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt instrument face amount |  |  | $ 1,800,000,000 |
Debt instrument, stated interest rate |  |  | 4.34% |
Mt Logan Re |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Other assets |  | 46,000,000 | $ 65,000,000 |
Other income (expense) |  | $ 8,500,000 | $ (900,000) | $ (1,300,000)

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