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Reserve for Future Policy Benefits
 3 Months Ended
Mar. 31, 2025
Insurance Loss Reserves [Abstract]  
Reserve for Future Policy Benefits
Property & Casualty Insurance Product Reserves, Net of Reinsurance
Rollforward of Liabilities for Unpaid Losses and Loss Adjustment Expenses
 For the three months ended March 31,
 20252024
Beginning liabilities for unpaid losses and loss adjustment expenses, gross$36,404 $34,044 
Reinsurance and other recoverables6,753 6,696 
Beginning liabilities for unpaid losses and loss adjustment expenses, net29,651 27,348 
Provision for unpaid losses and loss adjustment expenses  
Current accident year2,921 2,461 
Prior accident year development [1](122)(56)
Total provision for unpaid losses and loss adjustment expenses2,799 2,405 
Change in deferred gain on retroactive reinsurance included in other liabilities [1]32 24 
Payments  
Current accident year(458)(349)
Prior accident years(1,696)(1,591)
Total payments(2,154)(1,940)
Foreign currency adjustment13 (5)
Ending liabilities for unpaid losses and loss adjustment expenses, net30,341 27,832 
Reinsurance and other recoverables6,764 6,705 
Ending liabilities for unpaid losses and loss adjustment expenses, gross$37,105 $34,537 
[1] Prior accident year development for the three months ended March 31, 2025 and 2024 included a $32 and $24 benefit for amortization of a deferred gain under retroactive reinsurance accounting, respectively, related to the Navigators Adverse Development Cover (the "Navigator's ADC"). For additional information regarding the ADC reinsurance agreement, refer to "Change in Deferred Gain on Retroactive Reinsurance" discussion below.
Unfavorable (Favorable) Prior Accident Year Development
For the three months ended March 31,
20252024
Workers’ compensation$(65)$(67)
Workers’ compensation discount accretion12 12 
General liability— 17 
Marine— 7 
Package business— — 
Commercial property(3)(3)
Professional liability— (5)
Bond— — 
Assumed reinsurance— 9 
Commercial automobile liability— — 
Personal automobile liability(12)— 
Homeowners(18)— 
Net asbestos and environmental ("A&E") reserves— — 
Catastrophes— — 
Uncollectible reinsurance— — 
Other reserve re-estimates, net (4)(2)
Prior accident year development before change in deferred gain(90)(32)
Change in deferred gain on retroactive reinsurance included in other liabilities [1](32)(24)
Total prior accident year development$(122)$(56)
[1]The $32 and $24 change in deferred gain on retroactive reinsurance for the three months ended March 31, 2025 and 2024, respectively, is related to amortization of the Navigators ADC deferred gain. For additional information regarding the ADC reinsurance agreement, refer to "Change in Deferred Gain on Retroactive Reinsurance" discussion below.
Re-estimates of prior accident year reserves for the three months ended March 31, 2025
Workers’ compensation reserves were decreased within the 2016 to 2020 accident years primarily in small business, driven by lower than previously estimated claim severity.
Personal automobile liability reserves were decreased primarily within accident years 2020 to 2023 as a result of lower than expected severity.
Homeowners reserves were decreased primarily due to favorable severity impacting accident year 2024.
Other reserve re-estimates, net, were decreased due to lower than expected severity on Personal Insurance automobile physical damage for accident year 2024, partially offset by unfavorable development from participation in involuntary market pools.
Re-estimates of prior accident year reserves for the three months ended March 31, 2024
Workers’ compensation reserves were decreased within the 2016 to 2020 accident years primarily in small business, driven by lower than previously estimated claim severity. In addition, the 2020 accident year includes a $20 reduction of COVID-19 related reserves driven by favorable claim count emergence.
General liability reserves were increased within the 2016 to 2019 accident years driven by higher frequency of large losses on individual claims of excess and umbrella coverages within middle & large business and deterioration in global specialty primary construction business.
Marine reserves increased related to higher frequency of large losses on individual U.S. cargo claims for the 2023 accident year.
Professional liability reserves decreased modestly due to favorable development on directors' and officers' ("D&O") claims driven by the 2020 accident year.
Assumed reinsurance reserves were increased due to higher reserve estimates in the Latin America surety business related to the 2021 to 2023 accident years.
Other reserve re-estimates, net, were decreased due to lower severity than expected on Personal Insurance automobile physical damage for accident year 2023, partially offset by unfavorable development from participation in involuntary market pools.
Settlement Agreement with Boy Scouts of America
On February 14, 2022, the Company executed a final settlement agreement (the “Settlement”) with the Boy Scouts of America ("BSA"), the Local Councils, and the attorneys representing a majority of the alleged victims, pursuant to which The Hartford agreed to pay $787 for sexual molestation and sexual abuse claims associated with liability policies issued by various Hartford Writing Companies in the 1970s and early 1980s. In exchange for its payment, the Company receives a complete release of its policies issued to BSA and the Local Councils, as well as an injunction against further abuse claims involving BSA. All conditions precedent to the Settlement have been satisfied, including approval by the bankruptcy court and the district court, and on April 20, 2023, The Hartford paid the Settlement amount of $787. Certain objecting parties have appealed the district court’s ruling and that appeal is pending before the Third Circuit. If the court approvals for the BSA’s plan of reorganization are not affirmed on appeal, it is possible that adverse outcomes, if any, could have a material adverse effect on the Company’s operating results.

Change in Deferred Gain on Retroactive Reinsurance
The Company has in place an ADC reinsurance agreement that covered substantially all reserve development of Navigators Insurance Company and certain of its affiliates for 2018 and prior accident years (the “Navigators ADC”) up to an aggregate limit of $300, for which the Company had previously ceded the available limit. During the three months ended March 31, 2025 and 2024, the Company collected recoveries from National
Indemnity Company ("NICO"), a subsidiary of Berkshire Hathaway Inc., and as a result amortized $32 and $24 of the deferred gain within benefits, losses and loss adjustment expenses, respectively. As of March 31, 2025 and December 31, 2024, the deferred gain on the Navigators ADC was $32 and $64, respectively, and is included in other liabilities on the Condensed Consolidated Balance Sheets.
Rollforward of Liabilities for Unpaid Losses and Loss Adjustment Expenses
For the three months ended March 31,
20252024
Beginning liabilities for unpaid losses and loss adjustment expenses, gross$8,206 $8,274 
Reinsurance recoverables282 254 
Beginning liabilities for unpaid losses and loss adjustment expenses, net7,924 8,020 
Provision for unpaid losses and loss adjustment expenses
Current incurral year1,376 1,376 
Prior year's discount accretion55 53 
Prior incurral year development [1](197)(189)
Total provision for unpaid losses and loss adjustment expenses [2]1,234 1,240 
Payments
Current incurral year(382)(357)
Prior incurral years(903)(924)
Total payments(1,285)(1,281)
Ending liabilities for unpaid losses and loss adjustment expenses, net7,873 7,979 
Reinsurance recoverables288 255 
Ending liabilities for unpaid losses and loss adjustment expenses, gross$8,161 $8,234 
[1]Prior incurral year development represents the change in estimated ultimate incurred losses and loss adjustment expenses for prior incurral years on a discounted basis.
[2]Includes unallocated loss adjustment expenses ("ULAE") of $44 and $45 for the three months ended March 31, 2025 and 2024, respectively, that are recorded in insurance operating costs and other expenses in the Condensed Consolidated Statements of Operations.
Re-estimates of prior incurral years reserves for the three months ended March 31, 2025
Group disability - Prior period reserve estimates decreased by approximately $156 largely driven by strong long-term disability claim recoveries.
Group life and accident (including group life premium waiver) - Prior period reserve estimates decreased by approximately $39 largely driven by favorable mortality emergence and continued low incidence in group life premium waiver.
Re-estimates of prior incurral years reserves for the three months ended March 31, 2024
Group disability- Prior period reserve estimates decreased by approximately $149 largely driven by group long-term disability claim incidence lower than prior assumptions and strong recoveries on prior incurral year claims.
Group life and accident (including group life premium waiver)- Prior period reserve estimates decreased by approximately $37 largely driven by favorable mortality emergence and continued low incidence in group life premium waiver.
Supplemental Accident & Health- Prior period reserve estimates decreased by approximately $3 driven by lower than previously expected claim incidence.
10. Reserve for Future Policy Benefits
Rollforward of Reserve for Future Policy Benefits
For the three months ended March 31,
20252024
Payout AnnuitiesLife ConversionsPaid-up LifePayout AnnuitiesLife ConversionsPaid-up Life
Present Value of Expected Net Premiums
Balance, beginning of the period$45 $49 
Balance, ending of the period $43 $47 
Present Value of Expected Future Policy Benefits
Beginning balance at single-A rate$128 $106 $168 $137 $113 $185 
Beginning adjustment for changes in single-A rate— (15)(33)7 (11)(32)
Beginning balance at original discount rate128 121 201 130 124 217 
Effect of changes in cash flow assumptions— — — — — — 
Effect of actual variances from expected experience1 2 (1)1 1 — 
Adjusted beginning balance129 123 200 131 125 217 
Interest accrual and other1 5 1 2 4 2 
Benefit Payments(3)(10)(4)(3)(8)(7)
Ending balance at original discount rate127 118 197 130 121 212 
Ending adjustment for changes in single-A rate2 (14)(30)5 (12)(35)
Ending balance at single-A rate$129 $104 $167 $135 $109 $177 
Net reserve for future policy benefits$129 $61 $167 $135 $62 $177 
Weighted-average duration of the reserve for future policy benefits (years)9.511.06.49.011.96.3
 Net Reserve for Future Policy Benefits
As of March 31,
20252024
Payout Annuities$129 $135 
Life Conversions61 62 
Paid-up Life167 177 
Deferred Profit Liability16 20 
Other76 85 
Total$449 $479 
Undiscounted Expected Future Gross Premiums and Benefit Payments
As of March 31,
20252024
Payout Annuities [1]
Expected future benefit payments$254 $255 
Life Conversions
Expected future gross premiums$103 $111 
Expected future benefit payments$194 $201 
Paid-up Life [1]
Expected future benefit payments$256 $274 
[1]Payout Annuities and Paid-up Life have no expected future gross premiums.
Weighted-Average Interest Rates
As of March 31,
20252024
Payout Annuities
Interest accretion rate5.6 %5.6 %
Current discount rate5.4 %5.1 %
Life Conversions
Interest accretion rate4.3 %4.2 %
Current discount rate5.5 %5.3 %
Paid-up Life
Interest accretion rate2.9 %2.9 %
Current discount rate5.1 %5.2 %
Gross premiums and interest accretion recognized on long-duration insurance policies for the three months ended March 31, 2025 and 2024 were immaterial.