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AVAILABLE-FOR-SALE FIXED MATURITY SECURITIES
6 Months Ended
Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]  
AVAILABLE-FOR-SALE FIXED MATURITY SECURITIES AVAILABLE-FOR-SALE FIXED MATURITY SECURITIES
The amortized cost and fair value of available-for-sale fixed maturity securities are shown below:
AS OF JUN. 30, 2024
US$ MILLIONS
Amortized CostGross Unrealized GainsGross Unrealized LossesAllowance for Credit LossesFair Value
U.S. treasury and government$436 $$(39)$— $398 
U.S. states and political subdivisions3,324 85 (25)— 3,384 
Foreign governments1,002 18 (30)— 990 
Corporate debt securities36,508 537 (782)(35)36,228 
Residential mortgage-backed securities1,292 25 (8)— 1,309 
Commercial mortgage-backed securities3,450 56 (37)(6)3,463 
Collateralized debt securities6,796 55 (24)(2)6,825 
Total fixed maturity securities$52,808 $777 $(945)$(43)$52,597 
AS OF DEC. 31, 2023
US$ MILLIONS
Amortized CostGross Unrealized GainsGross Unrealized LossesAllowance for Credit LossesFair Value
U.S. treasury and government$529 $$(36)$— $497 
U.S. states and political subdivisions684 (17)— 670 
Foreign governments603 27 (16)— 614 
Corporate debt securities15,097 121 (607)(19)14,592 
Residential mortgage-backed securities367 14 (4)(1)376 
Commercial mortgage-backed securities750 13 (31)(6)726 
Collateralized debt securities1,311 19 (24)(4)1,302 
Total fixed maturity securities$19,341 $201 $(735)$(30)$18,777 
The amortized cost and fair value, by contractual maturity, of available-for-sale fixed maturity securities are shown below. Actual maturities may differ from contractual maturities as borrowers may have the right to call or prepay obligations with or without call or prepayment penalties. Residential and commercial mortgage-backed securities and collateralized debt securities, which are not due at a single maturity, have been separately presented below.
AS OF JUN. 30, 2024
US$ MILLIONS
Amortized CostFair Value
Due in one year or less$1,558 $1,556 
Due after one year through five years14,385 14,314 
Due after five years through ten years9,937 9,714 
Due after ten years15,390 15,416 
41,270 41,000 
Residential mortgage-backed securities1,292 1,309 
Commercial mortgage-backed securities3,450 3,463 
Collateralized debt securities6,796 6,825 
Total$52,808 $52,597 
Proceeds from sales of available-for-sale fixed maturity securities, with the related gross realized gains and losses, are shown below:
FOR THE PERIODS ENDED JUN. 30
US$ MILLIONS
Three Months EndedSix Months Ended
2024202320242023
Proceeds from sales of available-for-sale fixed maturity securities$2,617 $1,513 $3,729 $3,530 
Gross realized gains9 24 26 
Gross realized losses(31)(30)(37)(89)
The Company has pledged bonds in connection with certain agreements and transactions, such as financing and reinsurance agreements. The carrying value of bonds pledged was $10.1 billion and $168 million as of June 30, 2024 and December 31, 2023, respectively.
In accordance with various regulations, the Company has securities on deposit with regulating authorities with a carrying value of $165 million and $153 million as of June 30, 2024 and December 31, 2023, respectively. There are no restrictions on these assets.
The gross unrealized losses and fair value of available-for-sale fixed maturity securities, aggregated by investment category and the length of time individual securities have been in a continuous unrealized loss position due to market factors are shown below:
Less than 12 months12 months or moreTotal
AS OF JUN. 30, 2024
US$ MILLIONS, EXCEPT NUMBER OF ISSUES
Number of IssuesGross Unrealized LossesFair ValueNumber of IssuesGross Unrealized LossesFair ValueNumber of IssuesGross Unrealized LossesFair Value
U.S. treasury and government88 $— $131 34 $(39)$105 122 $(39)$236 
U.S. states and political subdivisions213 (11)303 162 (14)305 375 (25)608 
Foreign governments30 (9)290 39 (21)150 69 (30)440 
Corporate debt securities1,459 (130)4,728 1,366 (652)7,762 2,825 (782)12,490 
Residential mortgage-backed securities161 (4)133 35 (4)75 196 (8)208 
Commercial mortgage-backed securities138 (17)879 40 (20)217 178 (37)1,096 
Collateralized debt securities377 (15)2,739 57 (9)337 434 (24)3,076 
Total2,466 $(186)$9,203 1,733 $(759)$8,951 4,199 $(945)$18,154 
Less than 12 months12 months or moreTotal
AS OF DEC. 31, 2023
US$ MILLIONS, EXCEPT NUMBER OF ISSUES
Number of IssuesGross Unrealized LossesFair ValueNumber of IssuesGross Unrealized LossesFair ValueNumber of IssuesGross Unrealized LossesFair Value
U.S. treasury and government10 $— $29 29 $(36)$92 39 $(36)$121 
U.S. states and political subdivisions208 (3)217 106 (14)288 314 (17)505 
Foreign governments24 (3)129 25 (13)56 49 (16)185 
Corporate debt securities863 (137)3,088 917 (470)8,357 1,780 (607)11,445 
Residential mortgage-backed securities16 (1)42 18 (3)64 34 (4)106 
Commercial mortgage-backed securities32 (8)104 55 (23)262 87 (31)366 
Collateralized debt securities69 (1)147 41 (23)324 110 (24)471 
Total1,222 $(153)$3,756 1,191 $(582)$9,443 2,413 $(735)$13,199 
The unrealized losses as of June 30, 2024 and December 31, 2023 are principally related to the timing of the purchases of certain securities, which carry less yield than those available as of those dates. Approximately 93% and 89% of the fair value of fixed maturity securities shown above as of June 30, 2024 and December 31, 2023, respectively, are rated investment grade.
The Company expects to recover the amortized cost on all securities except for those securities on which it recognized an allowance for credit loss. In addition, as the Company did not have the intent to sell fixed maturity securities with unrealized losses and it was not more likely than not that the Company would be required to sell these securities prior to recovery of the amortized cost, which may be maturity, the Company did not write down these investments to fair value through the statements of operations.
Allowance for Credit Losses
Several assumptions and underlying estimates are made in the evaluation of allowance for credit loss. Examples include financial condition, near term and long-term prospects of the issue or issuer, including relevant industry conditions and trends and implications of rating agency actions and offering prices. Based on this evaluation, unrealized losses on available-for-sale securities where an allowance for credit loss was not recorded were concentrated within the financials sector as of June 30, 2024 (December 31, 2023 – financials sector).
The rollforward of the allowance for credit losses for available-for-sale fixed maturity securities is shown below for the three and six months ended June 30, 2024 and 2023.

FOR THE PERIODS ENDED JUN. 30, 2024
US$ MILLIONS
Corporate Debt SecuritiesResidential Mortgage Backed SecuritiesCommercial Mortgage Backed SecuritiesCollateralized Debt SecuritiesTotal
Balance as of January 1, 2024
$(19)$(1)$(6)$(4)$(30)
Credit losses recognized on securities for which credit losses were not previously recorded(12)— — — (12)
Reductions for securities sold during the period— — — 1 
Changes in previously recorded allowance— 9 
Balance as of March 31, 2024$(24)$ $(6)$(2)$(32)
Credit losses recognized on securities for which credit losses were not previously recorded(14)— — — (14)
Reductions for securities sold during the period— — — —  
Changes in previously recorded allowance— — — 3 
Balance as of June 30, 2024$(35)$ $(6)$(2)$(43)
FOR THE PERIODS ENDED JUN. 30, 2023
US$ MILLIONS
Corporate Debt SecuritiesResidential Mortgage Backed SecuritiesCommercial Mortgage Backed SecuritiesCollateralized Debt SecuritiesTotal
Balance as of January 1, 2023
$(24)$— $— $(6)$(30)
Credit losses recognized on securities for which credit losses were not previously recorded(1)— — (5)(6)
Reductions for securities sold during the period13 — — 15 
Changes in previously recorded allowance(1)— — (1)(2)
Balance as of March 31, 2023
$(13)$ $ $(10)$(23)
Credit losses recognized on securities for which credit losses were not previously recorded(17)— — (13)(30)
Reductions for securities sold during the period— — — 1 
Changes in previously recorded allowance— — 13 
Balance as of June 30, 2023
$(23)$ $ $(16)$(39)
No accrued interest receivables were written off as of June 30, 2024 and December 31, 2023.
EQUITY SECURITIES
The net gains (losses) on equity securities recognized in “Investment related gains (losses)” on the statements of operations are shown below:
FOR THE THREE MONTHS ENDED JUN. 30
US$ MILLIONS
Three Months EndedSix Months Ended
2024202320242023
Unrealized gains (losses) on equity securities$(144)$88 $(124)$(1)
Net gains (losses) on equity securities sold172 157 172 157 
Net gains (losses) on equity securities$28 $245 $48 $156 
Equity securities by market sector distribution are shown below, based on carrying value:
AS OF
June 30, 2024December 31, 2023
Consumer goods7 %%
Energy and utilities19 %16 %
Finance54 %44 %
Healthcare3 %22 %
Industrials2 %%
Information technology11 %%
Other4 %%
Total100 %100 %