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Investments (excluding Consolidated Investment Entities) (Tables)
12 Months Ended
Dec. 31, 2023
Investments, Debt and Equity Securities [Abstract]  
Available-for-sale and fair value option ("FVO") fixed maturities
Available-for-sale and fair value option ("FVO") fixed maturities were as follows as of December 31, 2023:
Amortized CostGross Unrealized Capital GainsGross Unrealized Capital Losses
Embedded Derivatives(2)
Allowance for credit lossesFair Value
Fixed maturities:
U.S. Treasuries$417 $$21 $— $— $403 
U.S. Government agencies and authorities54 — — 56 
State, municipalities and political subdivisions871 101 — — 771 
U.S. corporate public securities8,402 168 904 — — 7,666 
U.S. corporate private securities5,040 44 324 — — 4,760 
Foreign corporate public securities and foreign governments(1)
2,928 47 270 — 2,702 
Foreign corporate private securities(1)
2,916 27 129 — 2,812 
Residential mortgage-backed securities3,695 36 257 — 3,476 
Commercial mortgage-backed securities4,147 644 — 3,495 
Other asset-backed securities2,528 16 71 — 2,470 
Total fixed maturities, including securities pledged30,998 350 2,722 17 28,611 
Less: Securities pledged1,232 — 72 — — 1,160 
Total fixed maturities$29,766 $350 $2,650 $$17 $27,451 
(1) Primarily U.S. dollar denominated.
(2) Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Net gains (losses) in the Consolidated Statements of Operations.
Available-for-sale and FVO fixed maturities were as follows as of December 31, 2022:
Amortized CostGross Unrealized Capital GainsGross Unrealized Capital Losses
Embedded Derivatives(2)
Allowance for credit lossesFair Value
Fixed maturities:
U.S. Treasuries$590 $12 $21 $— $— $581 
U.S. Government agencies and authorities58 — — 59 
State, municipalities and political subdivisions978 134 — — 845 
U.S. corporate public securities9,343 97 1,239 — — 8,201 
U.S. corporate private securities5,087 14 409 — — 4,692 
Foreign corporate public securities and foreign governments(1)
3,343 18 403 — 2,949 
Foreign corporate private securities(1)
3,254 225 — 3,034 
Residential mortgage-backed securities4,230 34 290 — 3,977 
Commercial mortgage-backed securities4,466 585 — — 3,883 
Other asset-backed securities2,307 173 — 2,136 
Total fixed maturities, including securities pledged33,656 191 3,481 12 30,357 
Less: Securities pledged1,303 144 — — 1,162 
Total fixed maturities$32,353 $188 $3,337 $$12 $29,195 
(1) Primarily U.S. dollar denominated.
(2) Embedded derivatives within fixed maturity securities are reported with the host investment. The changes in fair value of embedded derivatives are reported in Net gains (losses) in the Consolidated Statements of Operations.
Investments Classified by Contractual Maturity Date
The amortized cost and fair value of fixed maturities, including securities pledged, as of December 31, 2023, are shown below by contractual maturity. Actual maturities may differ from contractual maturities as securities may be restructured, called or prepaid. Mortgage-backed securities ("MBS") and Other asset-backed securities ("ABS") are shown separately because they are not due at a single maturity date.
Amortized
Cost
Fair
Value
Due to mature:
One year or less
$767 $754 
After one year through five years3,952 3,820 
After five years through ten years3,920 3,805 
After ten years11,989 10,791 
Mortgage-backed securities7,842 6,971 
Other asset-backed securities2,528 2,470 
Fixed maturities, including securities pledged$30,998 $28,611 
Schedule of Securities Financing Transactions
The following table presents Securities pledged as of the dates indicated:
December 31, 2023December 31, 2022
Securities pledged/obligations under repurchase agreements(1)
$117 $113 
Securities loaned to lending agent(2)
842 907 
Securities pledged as collateral(2)(3)
201 142 
Total
$1,160 $1,162 
(1) Comprised of other asset-backed securities and included in Securities pledged and Payables under securities loan and repurchase agreements, including collateral held on the Consolidated Balance Sheets.
(2) Included in Securities pledged on the Consolidated Balance Sheets.
(3) See Collateral within the Derivatives Note to these Consolidated Financial Statements for more information.
Schedule of Securities Borrowed Under Securities Lending Transactions
The following table presents collateral held by asset class pledged under securities lending as of the dates indicated:
December 31, 2023December 31, 2022
U.S. Treasuries$14 $53 
U.S. corporate public securities568 604 
Short-term investments55 — 
Foreign corporate public securities and foreign governments238 285 
Total(1)
$875 $942 
(1) As of December 31, 2023 and 2022, liabilities to return cash collateral were $660 and $807, respectively, and included in Payables under securities loan and repurchase agreements, including collateral held on the Consolidated Balance Sheets.
Allowance for Credit Loss on Available-for-sale Fixed Maturity Securities
Allowance for credit losses
The following table presents a rollforward of the allowance for credit losses on available-for-sale fixed maturity securities for the period presented:
Year Ended December 31, 2023
U.S. corporate public securitiesCommercial mortgage-backed securitiesForeign corporate public securities and foreign governmentsForeign corporate private securitiesOther asset-backed securitiesTotal
Balance as of January 1$— $— $$$$12 
Credit losses on securities for which credit losses were not previously recorded— — — 11 
Reductions for securities sold during the period— — (5)— — (5)
Increase (decrease) on securities with allowance recorded in previous period— — (1)— — (1)
Balance as of December 31$— $$$$$17 

Year Ended December 31, 2022
Residential mortgage-backed securities
Foreign corporate public securities and foreign governments
Foreign corporate private securitiesOther asset-backed securitiesTotal
Balance as of January 1$$— $56 $$58 
Credit losses on securities for which credit losses were not previously recorded— — — 
Reductions for securities sold during the period— — (57)— (57)
Increase (decrease) on securities with allowance recorded in previous period(1)— — 
Balance as of December 31$— $$$$12 
Schedule of Unrealized Loss on Investments
The following table presents available-for-sale fixed maturities, including securities pledged, for which an allowance for credit losses has not been recorded by investment category and duration as of the dates indicated:
As of December 31, 2023
Twelve Months or Less
Below Amortized Cost
More Than Twelve Months
Below Amortized Cost
Total
Fair ValueUnrealized Capital LossesFair ValueUnrealized Capital LossesFair ValueUnrealized Capital Losses
U.S. Treasuries$99 $$109 $18 $208 $21 
U.S. Government agencies and authorities— — 
State, municipalities and political subdivisions20 — 731 101 751 101 
U.S. corporate public securities321 17 5,101 887 5,422 904 
U.S. corporate private securities176 3,365 317 3,541 324 
Foreign corporate public securities and foreign governments82 1,749 268 1,831 270 
Foreign corporate private securities189 2,101 124 2,290 129 
Residential mortgage-backed114 1,354 254 1,468 257 
Commercial mortgage-backed 84 3,269 642 3,353 644 
Other asset-backed136 1,156 68 1,292 71 
Total$1,221 $42 $18,938 $2,680 $20,159 $2,722 
As of December 31, 2022
Twelve Months or Less
Below Amortized Cost
More Than Twelve Months
Below Amortized Cost
Total
Fair ValueUnrealized Capital LossesFair ValueUnrealized Capital LossesFair ValueUnrealized Capital Losses
U.S. Treasuries$197 $19 $$$206 $21 
U.S. Government agencies and authorities21 — — 21 
State, municipalities and political subdivisions751 121 30 13 781 134 
U.S. corporate public securities5,479 792 1,137 447 6,616 1,239 
U.S. corporate private securities3,569 322 458 87 4,027 409 
Foreign corporate public securities and foreign governments2,050 260 391 143 2,441 403 
Foreign corporate private securities2,728 211 65 14 2,793 225 
Residential mortgage-backed1,538 128 562 162 2,100 290 
Commercial mortgage-backed2,628 390 1,133 195 3,761 585 
Other asset-backed1,430 104 578 69 2,008 173 
Total$20,391 $2,349 $4,363 $1,132 $24,754 $3,481 
Mortgage Loans by Loan to Value Ratio
The following tables present commercial mortgage loans by year of origination and LTV ratio as of the dates indicated. The information is updated as of December 31, 2023 and 2022, respectively.

As of December 31, 2023
Loan-to-Value Ratios
Year of Origination
0% - 50%
>50% - 60%
>60% - 70%
>70% - 80%
>80% and above
Total
2023$150 $222 $— $— $— $372 
2022252 326 73 — — 651 
2021244 214 209 — — 667 
2020168 112 — 10 16 306 
2019238 68 28 — — 334 
Prior2,586 280 — 18 2,888 
Total$3,638 $1,222 $314 $10 $34 $5,218 
As of December 31, 2022
Loan-to-Value Ratios
Year of Origination
0% - 50%
>50% - 60%
>60% - 70%
>70% - 80%
>80% and above
Total
2022$250 $320 $65 $— $— $635 
2021240 272 255 10 — 777 
2020119 209 25 10 — 363 
2019227 94 29 — — 350 
2018163 41 — — 206 
Prior2,606 482 26 — — 3,114 
Total$3,605 $1,418 $402 $20 $— $5,445 
Mortgage Loans by Debt Service Coverage Ratio
The following tables present commercial mortgage loans by year of origination and DSC ratio as of the dates indicated. The information is updated as of December 31, 2023 and 2022, respectively.
As of December 31, 2023
Debt Service Coverage Ratios
Year of Origination
>1.5x
>1.25x - 1.5x
>1.0x - 1.25x
<1.0x
Total*
2023$189 $116 $67 $— $372 
2022204 68 192 187 651 
2021260 14 64 329 667 
2020211 24 21 50 306 
2019203 26 84 21 334 
Prior2,216 264 255 153 2,888 
Total$3,283 $512 $683 $740 $5,218 
*No commercial mortgage loans were secured by land or construction loans
As of December 31, 2022
Debt Service Coverage Ratios
Year of Origination
>1.5x
>1.25x - 1.5x
>1.0x - 1.25x
<1.0x
Total*
2022$331 $100 $181 $23 $635 
2021273 33 269 202 777 
2020259 11 11 82 363 
2019222 54 67 350 
2018128 27 51 — 206 
Prior2,172 454 226 262 3,114 
Total$3,385 $679 $805 $576 $5,445 
*No commercial mortgage loans were secured by land or construction loans
Mortgage Loans by Geographic Location of Collateral
The following tables present the commercial mortgage loans by year of origination and U.S. region as of the dates indicated. The information is updated as of December 31, 2023 and 2022, respectively.
As of December 31, 2023
U.S. Region
Year of OriginationPacificSouth AtlanticMiddle AtlanticWest South CentralMountainEast North CentralNew EnglandWest North CentralEast South CentralTotal
2023$69 $77 $12 $101 $39 $42 $$26 $$372 
2022140 132 47 100 113 93 20 651 
202196 63 124 148 111 75 40 667 
202063 155 17 10 12 26 — 16 306 
201953 100 10 74 45 14 13 21 334 
Prior734 605 765 189 214 171 47 144 19 2,888 
Total$1,155 $1,132 $975 $622 $534 $411 $78 $231 $80 $5,218 
As of December 31, 2022
U.S. Region
Year of OriginationPacificSouth AtlanticMiddle AtlanticWest South CentralMountainEast North CentralNew EnglandWest North CentralEast South CentralTotal
2022$140 $129 $48 $98 $114 $82 $$$19 $635 
202199 72 134 143 112 138 48 22 777 
202074 170 18 16 12 39 — 27 363 
201958 106 10 77 46 14 13 21 350 
201850 62 55 10 14 10 — — 206 
Prior777 623 759 248 227 257 49 149 25 3,114 
Total$1,198 $1,162 $1,024 $592 $525 $531 $76 $223 $114 $5,445 
Mortgage Loans by Property Type of Collateral
The following tables present the commercial mortgage loans by year of origination and property type as of the dates indicated. The information is updated as of December 31, 2023 and 2022, respectively.
As of December 31, 2023
Property Type
Year of OriginationRetailIndustrialApartmentsOfficeHotel/MotelOtherMixed UseTotal
2023$125 $164 $33 $18 $32 $— $— $372 
202279 263 255 34 10 10 — 651 
202136 145 335 123 — 18 10 667 
202057 49 72 128 — — — 306 
201945 82 160 36 11 — — 334 
Prior780 755 618 463 60 163 49 2,888 
Total$1,122 $1,458 $1,473 $802 $113 $191 $59 $5,218 
As of December 31, 2022
Property Type
Year of OriginationRetailIndustrialApartmentsOfficeHotel/MotelOtherMixed UseTotal
2022$79 $255 $247 $34 $10 $10 $— $635 
202137 168 420 125 — 18 777 
202058 61 93 151 — — — 363 
201946 85 165 40 14 — — 350 
201837 84 56 12 — 17 — 206 
Prior888 757 679 513 69 156 52 3,114 
Total$1,145 $1,410 $1,660 $875 $93 $201 $61 $5,445 
Allowance for Credit Losses for Commercial Mortgage Loans
The following table summarizes the activity in the allowance for losses for commercial mortgage loans for the periods indicated:
December 31, 2023December 31, 2022
Allowance for credit losses, balance at January 1$18 $15 
Credit losses on mortgage loans for which credit losses were not previously recorded
Increase (decrease) on mortgage loans with allowance recorded in previous period— 
Provision for expected credit losses29 18 
Write-offs(3)— 
Allowance for credit losses, end of period$26 $18 
Financing Receivable, Past Due
The following table presents past due commercial mortgage loans as of the dates indicated:

December 31, 2023December 31, 2022
Delinquency:
Current$5,202 $5,445 
30-59 days past due— — 
60-89 days past due— — 
Greater than 90 days past due16 — 
Total$5,218 $5,445 
Net Investment Income
The following table summarizes Net investment income by investment type for the periods indicated:
Year Ended December 31,
202320222021
Fixed maturities$1,766 $1,940 $1,996 
Equity securities21 12 20 
Mortgage loans on real estate249 237 247 
Policy loans20 21 23 
Short-term investments and cash equivalents39 13 
Limited partnerships and other
135 118 548 
Gross investment income2,230 2,341 2,842 
Less: Investment expenses71 60 68 
Net investment income$2,159 $2,281 $2,774 
Realized Gain (Loss) on Investments
Net gains (losses) were as follows for the periods indicated:
Year Ended December 31,
202320222021
Fixed maturities, available-for-sale, including securities pledged$(31)$(30)$1,791 
Fixed maturities, at fair value option(100)(920)(717)
Equity securities, at fair value(39)
Derivatives29 305 19 
Embedded derivatives - fixed maturities(1)(9)(8)
Other derivatives
— — 
Standalone derivatives— (12)
Managed custody guarantees(2)(5)
Stabilizer
(1)19 30 
Mortgage loans(12)— 182 
Other investments43 103 
Net gains (losses)$(72)$(686)$1,415 
Gain (Loss) on Securities
Proceeds from the sale of fixed maturities, available-for-sale, and equity securities and the related gross realized gains and losses, before tax, were as follows for the periods indicated:
Year Ended December 31,
202320222021
Proceeds on sales$5,393 $5,448 $12,198 
Gross gains69 100 1,769 
Gross losses78 109