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Reinsurance | 3 Months Ended
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Mar. 31, 2024
Retrocession Arrangements And Reinsurance Ceded Receivables [Abstract] |
Retrocession Arrangements and Reinsurance Ceded Receivables | REINSURANCE Ceded Reinsurance Retrocession reinsurance treaties do not relieve the Company from its obligations to direct writing companies. Failure of retrocessionaires to honor their obligations could result in losses to the Company. Consequently, allowances would be established for amounts deemed uncollectible. The Company regularly evaluates the financial condition of the insurance companies from which it assumes and to which it cedes reinsurance. At March 31, 2024 and December 31, 2023, no allowances were deemed necessary. Retrocessions are arranged through the Company’s retrocession pools for amounts in excess of the Company’s retention limit. As of March 31, 2024, all rated retrocession pool participants followed by the A.M. Best Company were rated “A- (excellent)” or better. The Company verifies retrocession pool participants’ ratings on a quarterly basis. For a majority of the retrocessionaires that were not rated, security in the form of letters of credit or trust assets have been posted. In addition, the Company performs annual financial reviews of its retrocessionaires to evaluate financial stability and performance. During the fourth quarter of 2023, Ruby Reinsurance Company (Ruby Re), a Missouri-domiciled life reinsurance company to reinsure U.S. asset-intensive business was launched with the Company as a sponsor. The Company, which is not an investor in Ruby Re, does not consolidate the entity. Two reinsurance companies, including Ruby Re, account for approximately 74% of reinsurance ceded receivables and other as of March 31, 2024. As of March 31, 2024 and December 31, 2023, $12 million and $10 million of claims recoverable were in excess of 90 days past due, respectively. Also included in reinsurance ceded receivables and other is a deposit asset on reinsurance of $3.0 billion and $3.1 billion as of March 31, 2024 and December 31, 2023, respectively. Funds Withheld Certain of the Company’s retrocession agreements, including those with Ruby Re, are on a modco or funds withheld basis. While the economic benefits of the funds withheld assets are passed on to the assuming company, the Company retains legal ownership of the assets within the funds withheld account and established a funds withheld liability. Net investment income related to the funds withheld assets are reported in other reinsurance expense, and net realized gains (losses) related to the assets are reported net of the amount that is passed on to the assuming company. The following assets were held in support of the Company’s funds withheld arrangements and are reported in the line items shown in the condensed consolidated balance sheets as of March 31, 2024 and December 31, 2023 (dollars in millions):
|  | March 31, 2024 |  | December 31, 2023
Fixed maturity securities available-for-sale |  | $ | 2,380 |  |  | $ | 2,442 |
Equity securities |  | 2 |  |  | 2 |
Mortgage loans |  | 437 |  |  | 451 |
Funds withheld at interest |  | 1,515 |  |  | 1,545 |
Real estate joint ventures |  | 36 |  |  | 35 |
Short-term investments and cash and cash equivalents |  | 31 |  |  | 30 |
Accrued investment income |  | 28 |  |  | 28 |
Net other assets |  | — |  |  | 1 |
Net assets |  | $ | 4,429 |  |  | $ | 4,534 |
Certain assets are reported at amortized cost while the fair value of those assets is reflected in the funds withheld payable. The Company had a $4,409 million and $4,483 million funds withheld payable, net of an embedded derivative asset of $190 million and $206 million as of March 31, 2024 and December 31, 2023, respectively.

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