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Investments
12 Months Ended
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]  
Investments Investments
Net investment income is as follows:

Year Ended December 31
202520242023
(In millions)   
    
Fixed maturity securities$2,140 $2,050 $1,941 
Limited partnership investments278 271 177 
Short-term investments76 90 78 
Equity securities (a)60 82 63 
Income from trading portfolio (a)209 255 125 
Other118 129 105 
Total investment income2,881 2,877 2,489 
Investment expenses(102)(97)(94)
Net investment income$2,779 $2,780 $2,395 
(a) Net investment income recognized due to the change in fair value of equity and trading portfolio securities held as of December 31, 2025, 2024 and 2023
$63 $93 $38 

As of December 31, 2025 and 2024, no investments in a single issuer exceeded 10% of shareholders’ equity, other than investments in securities issued by the U.S. Treasury and obligations of government-sponsored enterprises.
Investment gains (losses) are as follows:

Year Ended December 31202520242023
(In millions)   
    
Fixed maturity securities:
Gross gains$42 $48 $75 
Gross losses(125)(150)(166)
Investment losses on fixed maturity securities(83)(102)(91)
Equity securities (a)7 21 
Derivative instruments(1)
Short-term investments and other(5)(11)
Gain on acquisition of a joint venture (see Note 2)
46 
Investment losses$(81)$(81)$(53)
(a) Investment gains (losses) recognized due to the change in fair value of non-redeemable preferred stock included within equity securities held as of December 31, 2025, 2024 and 2023
$7 $19 $14 

The available-for-sale impairment losses (gains) recognized in earnings by asset type are presented in the following table. The table includes losses (gains) on securities with an intention to sell and changes in the allowance for credit losses on securities since acquisition date:

Year Ended December 31202520242023
(In millions)   
    
Fixed maturity securities available-for-sale:   
Corporate and other bonds$25 $34 $33 
Asset-backed8 29 11 
Impairment losses recognized in earnings$33 $63 $44 

For the years ended December 31, 2025 and 2023, there were $5 million and $11 million of impairment losses related to mortgage loans due to changes in expected credit losses. No impairment losses were recognized on mortgage loans during the year ended December 31, 2024.

The net change in unrealized gains (losses) on fixed maturity securities, was $1.1 billion, $(352) million and $1.4 billion for the years ended December 31, 2025, 2024 and 2023.
The amortized cost and fair values of fixed maturity securities are as follows:

December 31, 2025Cost or Amortized CostGross Unrealized
Gains
Gross Unrealized
Losses
Allowance
for Credit Losses
Estimated
Fair Value
(In millions)     
      
Fixed maturity securities:     
Corporate and other bonds$25,484 $682 $881 $28 $25,257 
States, municipalities and political
 subdivisions
8,870 303 742 8,431 
Asset-backed:
Residential mortgage-backed4,011 50 366 3,695 
Commercial mortgage-backed1,515 18 80 21 1,432 
Other asset-backed3,729 28 194 20 3,543 
Total asset-backed9,255 96 640 41 8,670 
U.S. Treasury and obligations of
 government sponsored enterprises
236 1 3 234 
Foreign government764 7 20 751 
Redeemable preferred stock8 8 
Fixed maturities available-for-sale$44,617 $1,089 $2,286 $69 $43,351 
Fixed maturities trading633 633 
Total fixed maturity securities$45,250 $1,089 $2,286 $69 $43,984 

December 31, 2024
    
Fixed maturity securities:    
Corporate and other bonds$25,839 $423 $1,305 $13 $24,944 
States, municipalities and political
 subdivisions
7,396 243 835 6,804 
Asset-backed:
Residential mortgage-backed3,725 488 3,244 
Commercial mortgage-backed1,779 11 141 18 1,631 
Other asset-backed3,770 24 239 14 3,541 
Total asset-backed9,274 42 868 32 8,416 
U.S. Treasury and obligations of
 government sponsored enterprises
220 220 
Foreign government701 30 677 
Fixed maturities available-for-sale$43,430 $715 $3,039 $45 $41,061 
Fixed maturities trading766 766 
Total fixed maturity securities$44,196 $715 $3,039 $45 $41,827 

The available-for-sale fixed maturities securities in a gross unrealized loss position for which an allowance for credit losses has not been recorded are as follows:

 Less than 12 Months12 Months or LongerTotal
December 31, 2025Estimated Fair ValueGross Unrealized LossesEstimated Fair ValueGross Unrealized LossesEstimated Fair ValueGross Unrealized Losses
(In millions)
 
Fixed maturity securities:
Corporate and other bonds$2,776 $56 $8,576 $825 $11,352 $881 
States, municipalities and political
 subdivisions
403 8 3,471 734 3,874 742 
Asset-backed:
Residential mortgage-backed154 1 2,002 365 2,156 366 
Commercial mortgage-backed36 2 887 78 923 80 
Other asset-backed420 9 1,432 185 1,852 194 
Total asset-backed610 12 4,321 628 4,931 640 
U.S. Treasury and obligations of
 government-sponsored enterprises
78 2 18 1 96 3 
Foreign government131 1 260 19 391 20 
Total fixed maturity securities$3,998 $79 $16,646 $2,207 $20,644 $2,286 
December 31, 2024
Fixed maturity securities:
Corporate and other bonds$5,846 $165 $10,388 $1,140 $16,234 $1,305 
States, municipalities and political
 subdivisions
1,247 52 2,967 783 4,214 835 
Asset-backed:
Residential mortgage-backed849 22 2,010 466 2,859 488 
Commercial mortgage-backed180 988 139 1,168 141 
Other asset-backed680 21 1,557 218 2,237 239 
Total asset-backed1,709 45 4,555 823 6,264 868 
U.S. Treasury and obligations of
 government-sponsored enterprises
49 41 90 
Foreign government118 368 27 486 30 
Total fixed maturity securities$8,969 $266 $18,319 $2,773 $27,288 $3,039 
The following table presents the estimated fair value and gross unrealized losses of available-for-sale fixed maturity securities in a gross unrealized loss position for which an allowance for credit loss has not been recorded, by ratings distribution.

December 31, 2025December 31, 2024
Estimated Fair ValueGross Unrealized LossesEstimated Fair ValueGross Unrealized Losses
(In millions)
U.S. Government, Government agencies and Government-sponsored enterprises$1,980 $267 $2,567 $373 
AAA1,376 243 1,800 282 
AA3,827 623 4,247 730 
A5,025 440 6,330 582 
BBB7,758 639 11,548 980 
Non-investment grade678 74 796 92 
Total$20,644 $2,286 $27,288 $3,039 

Based on current facts and circumstances, the unrealized losses presented in the December 31, 2025 securities in the gross unrealized loss position table above are not indicative of the ultimate collectability of the current amortized cost of the securities, but rather are primarily attributable to changes in risk-free interest rates. In reaching this determination, the volatility in risk-free rates and credit spreads, as well as the fact that the unrealized losses are concentrated in investment grade issuers, were considered. Additionally, there is no current intent to sell securities with unrealized losses, nor is it more likely than not that sale will be required prior to recovery of amortized cost; accordingly, it was determined that there are no additional impairment losses to be recorded at December 31, 2025.

The following tables present the activity related to the allowance on available-for-sale securities with credit impairments and purchased credit-deteriorated (“PCD”) assets. Accrued interest receivables on available-for-sale fixed maturity securities totaled $470 million and $442 million as of December 31, 2025 and 2024 and are excluded from the estimate of expected credit losses and the amortized cost basis in the tables within this Note.

Year Ended December 31, 2025
Corporate and Other Bonds
Asset-backed
Total
 (In millions)   
Allowance for credit losses:   
Balance as of January 1, 2025
$13 $32 $45 
Additions to the allowance for credit losses:
Securities for which credit losses were not previously recorded3 3 6 
Available-for-sale securities accounted for as PCD assets4 4 
 
Reductions to the allowance for credit losses:
Securities disposed during the period (realized)6 6 
Additional increases to the allowance for credit
losses on securities that had an allowance recorded in a previous period
14 6 20 
Total allowance for credit losses$28 $41 $69 
Year Ended December 31, 2024Corporate
and Other Bonds
Asset-backedTotal
(In millions)   
Allowance for credit losses:   
Balance as of January 1, 2024
$$12 $16 
Additions to the allowance for credit losses:
Securities for which credit losses were not previously recorded18 27 
Available-for-sale securities accounted for as PCD assets
 
Reductions to the allowance for credit losses:
Securities disposed during the period (realized)
Intent to sell or more likely than not will be required to sell the
security before recovery of its amortized cost basis
Write-offs charged against the allowance
Additional increases to the allowance for credit
losses on securities that had an allowance recorded in a previous period
12 12 
Total allowance for credit losses$13 $32 $45 

Contractual Maturity

The following table presents available-for-sale fixed maturity securities by contractual maturity.

December 3120252024
Cost or Amortized CostEstimated Fair
Value
Cost or Amortized CostEstimated
Fair
Value
(In millions)
Due in one year or less$1,392 $1,389 $1,761 $1,753 
Due after one year through five years11,318 11,214 11,678 11,403 
Due after five years through ten years13,440 13,187 13,083 12,365 
Due after ten years18,467 17,561 16,908 15,540 
Total$44,617 $43,351 $43,430 $41,061 

Actual maturities may differ from contractual maturities because certain securities may be called or prepaid. Securities not due at a single date are allocated based on weighted average life.

Limited Partnerships

The carrying value of limited partnership investments as of December 31, 2025 and 2024 was approximately $2.9 billion and $2.5 billion, which includes net undistributed earnings of $381 million and $334 million. Limited partnerships comprising 11% of the total carrying value are reported on a current basis through December 31, 2025 with no reporting lag, 2% of the total carrying value are reported on a one month lag and the remainder are reported on more than a one month lag. The number of limited partnerships held and the strategies employed provide diversification to the limited partnership portfolio and the overall invested asset portfolio.
Limited partnerships comprising 88% and 86% of the carrying value at December 31, 2025 and 2024 were invested in private debt and equity. Limited partnerships comprising 12% and 14% of the carrying value as of December 31, 2025 and 2024 employ hedge fund strategies. Private debt and equity funds cover a broad range of investment strategies including buyout, co-investment, private credit, growth capital, distressed investing and real estate. Hedge fund strategies include both long and short positions in fixed income, equity and derivative instruments.

The ten largest limited partnership positions held totaled $698 million and $648 million as of December 31, 2025 and 2024. Based on the most recent information available regarding percentage ownership of the individual limited partnerships, the carrying value reflected on the Consolidated Balance Sheets represents approximately 1% of the aggregate partnership equity at December 31, 2025 and 2024, and the related income reflected on the Consolidated Statements of Operations represents approximately 1% of the changes in aggregate partnership equity for each of the years ended December 31, 2025, 2024 and 2023.

There are risks inherent in limited partnership investments which may result in losses due to short-selling, derivatives or other speculative investment practices. The use of leverage increases volatility generated by the underlying investment strategies.

Private debt, private equity and other non-hedge fund limited partnership investments generally do not permit voluntary withdrawals. Hedge fund limited partnership investments contain withdrawal provisions that generally limit liquidity for a period of thirty days up to one year or longer. Typically, hedge fund withdrawals require advance written notice of up to 90 days.

Mortgage Loans

The following table presents the amortized cost basis of mortgage loans for each credit quality indicator by year of origination. The primary credit quality indicators utilized are debt service coverage ratios (“DSCR”) and loan-to-value (“LTV”) ratios.

Mortgage Loans Amortized Cost Basis by Origination Year (a)
As of December 31, 2025
2025
2024
2023
2022
2021
PriorTotal
(In millions)       
        
DSCR ≥1.6x       
LTV less than 55%$38 $33 $5 $215 $291 
LTV 55% to 65%37 12 $14 6 12 81 
LTV greater than 65%12 13 25 
DSCR 1.2x - 1.6x
LTV less than 55%$68 28 5 2 75 178 
LTV 55% to 65%107 33 38 21 19 28 246 
LTV greater than 65%7 46 53 
DSCR ≤1.2x
LTV less than 55%6 21 27 
LTV 55% to 65%37 17 38 15 107 
LTV greater than 65%40 21 25 86 
Total$226 $101 $134 $176 $66 $391 $1,094 
Write-offs for the year
   ended December 31,
   2025
(2)(23)(25)

(a)The values in the table above reflect DSCR on a standardized amortization period and LTV ratios based on the most recent appraised values trended forward using changes in a commercial real estate price index.
Derivative Financial Instruments

Derivatives may be used in the normal course of business, primarily in an attempt to reduce exposure to market risk (principally interest rate risk, credit risk, equity price risk, commodity price risk and foreign currency risk) stemming from various assets and liabilities. The principal objective under such strategies is to achieve the desired reduction in economic risk, even if the position does not receive hedge accounting treatment.

Interest rate swaps, futures and forward commitments to purchase securities may be entered into to manage interest rate risk. Credit derivatives such as credit default swaps may be entered into to modify the credit risk inherent in certain investments. Forward contracts, futures, swaps and options may be used to manage foreign currency and commodity price risk.

In addition to the derivatives used for risk management purposes described above, derivatives may also be used for purposes of income enhancement. Income enhancement transactions include interest rate swaps, call options, put options, credit default swaps, index futures and foreign currency forwards. See Note 4 for information regarding the fair value of derivative instruments.

The following tables present the aggregate contractual or notional amount and estimated fair value related to derivative financial instruments.

December 3120252024
Contractual/Notional AmountEstimated Fair Value Contractual/Notional AmountEstimated Fair Value
Asset
(Liability)
Asset(Liability)
(In millions)
Without hedge designation:
Equity markets:
Options - purchased$98 $1 $268 $
Futures - short249 2 167 
Warrants1 2 
Interest rate swaps473 300 
Credit default swap index - purchased2,000 

In the fourth quarter of 2024, the Company entered into credit default swap index transactions that would potentially benefit from widening investment grade credit spreads associated with the underlying securities that comprised the index. The position was closed during the second quarter of 2025. As of December 31, 2024, the notional value of the credit default swap index was $2 billion and the fair value was less than $1 million, which was recognized in Payable to brokers in the Consolidated Balance Sheets. The fair value of the position was measured using observable market inputs, including credit spreads. For the years ended December 31, 2025 and 2024, Net investment income related to the position was $19 million and less than $1 million.

Investment Commitments

As part of the overall investment strategy, investments are made in various assets which require future purchase, sale or funding commitments. These investments are recorded once funded, and the related commitments may include future capital calls from various third-party limited partnerships, signed and accepted mortgage loan applications and obligations related to private placement securities. As of December 31, 2025, commitments to purchase or fund were approximately $1.8 billion and to sell were approximately $45 million under the terms of these investments.
Investments on Deposit

Cash and securities with carrying values of approximately $3.4 billion and $3.1 billion were deposited by CNA’s insurance subsidiaries under requirements of regulatory authorities and others as of December 31, 2025 and 2024.

Cash and securities with carrying values of approximately $0.6 billion and $0.7 billion were deposited with financial institutions in trust accounts or as collateral for letters of credit to secure obligations with various third parties as of December 31, 2025 and 2024.