CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
ASSETS:
Fixed maturities - available for sale, at fair value (amortized cost: 2024, $16,532; 2023, $16,304, credit allowances: 2024, $(46); 2023, $(48))	$ 16,085	$ 15,932
Fixed maturities - held to maturity, at amortized cost (fair value: 2024, $839; 2023, $850, net of credit allowances: 2024, $(9); 2023, $(8))	837	851
Equity securities, at fair value	89	91
Other invested assets	3,280	3,259
Other invested assets, at fair value	1,478	1,481
Short-term investments	1,591	1,298
Cash	496	527
Total investments and cash	23,858	23,439
Accrued investment income	223	222
Premiums receivable (net of credit allowances:2024, $(28); 2023, $(28))	2,316	2,245
Income tax asset, net	48	141
Funds held by reinsureds	313	306
Deferred acquisition costs	709	659
Prepaid reinsurance premiums	469	490
Other assets (net of credit allowances: 2024, $(10); 2023, $(9))	897	774
TOTAL ASSETS	32,184	31,638
LIABILITIES:
Reserve for losses and loss adjustment expenses	15,949	15,796
Unearned premium reserve	3,894	3,886
Funds held under reinsurance treaties	41	54
Amounts due to reinsurers	536	488
Losses in course of payment	96	139
Income tax liability, net	0	29
Senior notes	2,349	2,349
Long-term notes	218	218
Borrowings from FHLB	819	819
Accrued interest on debt and borrowings	43	22
Unsettled securities payable	261	126
Other liabilities	460	526
Total liabilities	24,665	24,451
Commitments and Contingencies (Note 11)
STOCKHOLDER'S EQUITY:
Common stock, par value: $0.01; 3,000 shares authorized; 1,000 shares issued and outstanding (2024 and 2023)	0	0
Additional paid-in capital	1,103	1,102
Accumulated other comprehensive income (loss), net of deferred income tax expense (benefit) of $(97) at 2024 and $(76) at 2023	(364)	(287)
Retained earnings	6,780	6,372
Total stockholder's equity	7,518	7,187
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY	32,184	31,638
Affiliated Entity
ASSETS:
Reinsurance recoverables	1,516	1,547
Unaffiliated Party
ASSETS:
Reinsurance recoverables	$ 1,835	$ 1,816