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Fair Value of Financial Instruments (Tables)
9 Months Ended
Sep. 30, 2025
Fair Value Disclosures [Abstract]  
Fair Value of Assets and Liabilities on a Recurring Basis
The following summarizes our financial instruments carried at fair value (in millions) on a recurring basis by the fair value hierarchy levels:

As of September 30, 2025
Quoted
Prices
in Active
Markets forSignificantSignificant
IdenticalObservableUnobservableTotal
AssetsInputsInputsFair
(Level 1)(Level 2)(Level 3)Value
Assets
Investments:
Fixed maturity AFS securities:
Corporate bonds$– $65,158 $3,193 $68,351 
U.S. government bonds599 20 – 619 
State and municipal bonds– 2,235 – 2,235 
Foreign government bonds– 244 – 244 
RMBS– 2,106 12 2,118 
CMBS– 2,089 61 2,150 
ABS– 11,317 3,389 14,706 
Hybrid and redeemable preferred securities35 130 92 257 
Trading securities– 1,550 303 1,853 
Equity securities205 251 86 542 
Mortgage loans on real estate– – 230 230 
Derivative investments (1)
– 17,279 32 17,311 
Other investments – short-term investments– 214 222 
MRB assets– – 4,694 4,694 
Other assets:
Ceded MRBs– – 
Indexed annuity ceded embedded derivatives– – 1,333 1,333 
Separate account assets385 179,475 – 179,860 
Total assets$1,224 $282,068 $13,435 $296,727 
Liabilities
Policyholder account balances – RILA, fixed annuity
and IUL contracts$– $– $(14,918)$(14,918)
Funds withheld reinsurance liabilities – reinsurance-related
embedded derivatives– 147 (501)(354)
MRB liabilities– – (1,190)(1,190)
Other liabilities:
Ceded MRBs– – (349)(349)
Derivative liabilities (1)
– (6,882)(143)(7,025)
Total liabilities$– $(6,735)$(17,101)$(23,836)
As of December 31, 2024
Quoted
Prices
in Active
Markets forSignificantSignificant
IdenticalObservableUnobservableTotal
AssetsInputsInputsFair
(Level 1)(Level 2)(Level 3)Value
Assets
Investments:
Fixed maturity AFS securities:
Corporate bonds$– $63,585 $2,865 $66,450 
U.S. government bonds371 20 – 391 
State and municipal bonds– 2,371 – 2,371 
Foreign government bonds– 237 – 237 
RMBS– 1,851 12 1,863 
CMBS– 1,657 1,665 
ABS– 11,781 2,099 13,880 
Hybrid and redeemable preferred securities48 133 73 254 
Trading securities– 1,760 265 2,025 
Equity securities– 260 34 294 
Mortgage loans on real estate– – 232 232 
Derivative investments (1)
– 13,884 13,887 
Other investments – short-term investments– 369 23 392 
MRB assets– – 4,860 4,860 
Other assets:
Ceded MRBs– – 
Indexed annuity ceded embedded derivatives– – 1,115 1,115 
Separate account assets391 168,047 – 168,438 
Total assets$810 $265,955 $11,591 $278,356 
Liabilities
Policyholder account balances – RILA, fixed annuity
and IUL contracts $– $– $(12,449)$(12,449)
Funds withheld reinsurance liabilities – reinsurance-related
embedded derivatives– 204 (234)(30)
MRB liabilities– – (1,046)(1,046)
Other liabilities:
Ceded MRBs– – (381)(381)
Derivative liabilities (1)
– (4,256)(139)(4,395)
Total liabilities$– $(4,052)$(14,249)$(18,301)

(1) Derivative investment assets and liabilities are presented within the fair value hierarchy on a gross basis by derivative type and not on a master netting basis by counterparty.
The following summarizes the fair value by the fair value hierarchy levels and the carrying amount of our financial instruments not carried at fair value (in millions):

As of September 30, 2025
Quoted
Prices
in Active
Markets forSignificantSignificant
IdenticalObservableUnobservableTotal
AssetsInputsInputsFairCarrying
(Level 1)(Level 2)(Level 3)ValueAmount
Assets
Investments:
Mortgage loans on real estate$– $21,375 $– $21,375 $22,000 
Other investments– 659 5,724 6,383 6,383 
Policy loans– 2,584 – 2,584 2,584 
Cash and invested cash– 10,668 – 10,668 10,668 
Liabilities
Policyholder account balances – certain investment
contracts and other liabilities$– $– $(36,352)$(36,352)$(43,203)
Policyholder account balances – funding agreements– (1,942)– (1,942)(1,892)
Long-term debt– (5,497)– (5,497)(5,772)
Funds withheld reinsurance-related liabilities – excluding
embedded derivatives– – (17,205)(17,205)(17,205)
As of December 31, 2024
Quoted
Prices
in Active
Markets forSignificantSignificant
IdenticalObservableUnobservableTotal
AssetsInputsInputsFairCarrying
(Level 1)(Level 2)(Level 3)ValueAmount
Assets
Investments:
Mortgage loans on real estate$– $19,647 $– $19,647 $21,083 
Other investments– 1,119 5,469 6,588 6,588 
Policy loans– 2,476 – 2,476 2,476 
Cash and invested cash– 5,801 – 5,801 5,801 
Liabilities
Policyholder account balances – certain investment
contracts and other liabilities$– $– $(30,505)$(30,505)$(40,394)
Short-term debt– (299)– (299)(300)
Long-term debt– (5,304)– (5,304)(5,856)
Funds withheld reinsurance-related liabilities – excluding
embedded derivatives– – (16,877)(16,877)(16,877)
Fair Value Measured on a Recurring Basis Reconciliation
The following summarizes changes to our financial instruments carried at fair value (in millions) and classified within Level 3 of the fair value hierarchy. The gains and losses below may include changes in fair value due in part to observable inputs that are a component of the valuation methodology. The summary schedule excludes changes to MRB assets and MRB liabilities as these balances are rolled forward in Note 8.

For the Three Months Ended September 30, 2025
GainsIssuances,Transfers
Items(Losses)Sales,Into or
IncludedinMaturities,Out
BeginninginOCISettlements,ofEnding
FairNet andCalls,Level 3,Fair
ValueIncome
Other (1)
NetNetValue
Assets
Investments: (2)
Fixed maturity AFS securities:
Corporate bonds$3,076 $(6)$$169 $(52)$3,193 
RMBS79 – – – (67)12 
CMBS41 – 19 – 61 
ABS3,000 – 34 427 (72)3,389 
Hybrid and redeemable preferred
securities92 – – – – 92 
Trading securities296 – – 303 
Equity securities83 (1)– – 86 
Mortgage loans on real estate232 (1)(1)– – 230 
Other investments – short-term
investments24 – – (16)– 
Other assets:
Ceded MRBs (3)
– – – 
Indexed annuity ceded embedded
derivatives (4)
1,236 64 – 33 – 1,333 
Liabilities
Policyholder account balances –
RILA, fixed annuity and
IUL contracts (4)
(13,089)(1,693)– (136)– (14,918)
Funds withheld reinsurance
liabilities – reinsurance-related
embedded derivatives (4)
(309)(192)– – (501)
Other liabilities:
Ceded MRBs (3)
(341)(8)– – (349)
Derivative liabilities(115)– – (111)
Total, net$(5,693)$(1,830)$40 $504 $(191)$(7,170)
For the Three Months Ended September 30, 2024
GainsIssuances,Transfers
Items(Losses)Sales,Into or
IncludedinMaturities,Out
BeginninginOCISettlements,ofEnding
FairNetandCalls,Level 3,Fair
ValueIncome
Other (1)
NetNetValue
Assets
Investments: (2)
Fixed maturity AFS securities:
Corporate bonds$2,581 $(1)$43 $50 $(7)$2,666 
RMBS18 – – – (5)13 
CMBS23 – – 14 (16)21 
ABS1,997 – 50 232 (178)2,101 
Hybrid and redeemable preferred
securities50 – 16 10 77 
Trading securities273 – (6)– 274 
Equity securities38 – – (4)35 
Mortgage loans on real estate258 (1)– 263 
Derivative investments(8)– – (1)
Other investments – short-term
investments– – – 10 10 20 
Other assets:
Ceded MRBs (3)
– – – – 
Indexed annuity ceded embedded
derivatives (4)
967 191 – (26)– 1,132 
Liabilities
Policyholder account balances –
RILA, fixed annuity and
IUL contracts (4)
(11,417)(898)– 45 – (12,270)
Funds withheld reinsurance
liabilities – reinsurance-related
embedded derivatives (4)
(204)661 – – – 457 
Other liabilities – ceded MRBs (3)
(344)– – – (341)
Total, net$(5,766)$(29)$98 $336 $(190)$(5,551)
For the Nine Months Ended September 30, 2025
GainsIssuances,Transfers
Items(Losses)Sales,Into or
IncludedinMaturities,Out
BeginninginOCISettlements,ofEnding
FairNetandCalls,Level 3,Fair
ValueIncome
Other (1)
NetNetValue
Assets
Investments: (2)
Fixed maturity AFS securities:
Corporate bonds$2,865 $(43)$12 $300 $59 $3,193 
RMBS12 – – 74 (74)12 
CMBS– 59 (7)61 
ABS2,099 (21)41 1,324 (54)3,389 
Hybrid and redeemable preferred
securities73 – – 19 – 92 
Trading securities265 – 24 303 
Equity securities34 (9)– 54 86 
Mortgage loans on real estate232 (3)(2)– 230 
Other investments – short-term
investments23 – – (15)– 
Other assets:
Ceded MRBs (3)
– – – – 
Indexed annuity ceded embedded
derivatives (4)
1,115 112 – 106 – 1,333 
Liabilities
Policyholder account balances –
RILA, fixed annuity and
IUL contracts (4)
(12,449)(2,161)– (308)– (14,918)
Funds withheld reinsurance
liabilities – reinsurance-related
embedded derivatives (4)
(234)(267)– – – (501)
Other liabilities:
Ceded MRBs (3)
(381)32 – – – (349)
Derivative liabilities(136)25 – – – (111)
Total, net$(6,472)$(2,328)$57 $1,571 $$(7,170)
For the Nine Months Ended September 30, 2024
GainsIssuances,Transfers
Items(Losses)Sales,Into or
IncludedinMaturities,Out
BeginninginOCISettlements,ofEnding
FairNetandCalls,Level 3,Fair
ValueIncome
Other (1)
NetNetValue
Assets
Investments: (2)
Fixed maturity AFS securities:
Corporate bonds$2,497 $$25 $264 $(121)$2,666 
State and municipal bonds– – – (5)– 
RMBS13 – (1)(5)13 
CMBS– – 29 (16)21 
ABS1,484 – 55 798 (236)2,101 
Hybrid and redeemable preferred
securities48 – 16 10 77 
Trading securities284 – (17)– 274 
Equity securities42 (3)– – (4)35 
Mortgage loans on real estate288 (36)– 263 
Derivative investments36 11 – (51)(1)
Other investments – short-term
investments– – – 10 10 20 
Other assets:
Ceded MRBs (3)
– – – – 
Indexed annuity ceded embedded
derivatives (4)
940 238 – (46)– 1,132 
Liabilities
Policyholder account balances –
RILA, fixed annuity and
IUL contracts (4)
(9,077)(2,915)– (278)– (12,270)
Funds withheld reinsurance
liabilities – reinsurance-related
embedded derivatives (4)
(789)1,246 – – – 457 
Other liabilities – ceded MRBs (3)
(239)(102)– – – (341)
Total, net$(4,458)$(1,511)$87 $749 $(418)$(5,551)

(1) The changes in fair value of the interest rate swaps are offset by an adjustment to derivative investments (see Note 5).
(2) Amortization and accretion of premiums and discounts are included in net investment income on the Consolidated Statements of Comprehensive Income (Loss). Gains (losses) from sales, maturities, settlements and calls and credit loss expense are included in realized gain (loss) on the Consolidated Statements of Comprehensive Income (Loss).
(3) Gains (losses) from the changes in fair value are included in market risk benefit gain (loss) on the Consolidated Statements of Comprehensive Income (Loss).
(4) Gains (losses) from the changes in fair value are included in realized gain (loss) on the Consolidated Statements of Comprehensive Income (Loss).
Schedule of Investment Holdings Movements
The following provides the components of the items included in issuances, sales, maturities, settlements and calls, net, (in millions) as reported above:

For the Three Months Ended September 30, 2025
IssuancesSalesMaturitiesSettlementsCallsTotal
Investments:
Fixed maturity AFS securities:
Corporate bonds$342 $(7)$– $(166)$– $169 
CMBS19 – – – – 19 
ABS581 (38)– (84)(32)427 
Trading securities22 (8)(5)(5)– 
Equity securities(1)– – – 
Mortgage loans on real estate– – (1)– – 
Other investments – short-term investments– – – (16)– (16)
Other assets – indexed annuity ceded
embedded derivatives37 – – (4)– 33 
Policyholder account balances –
RILA, fixed annuity and
IUL contracts(398)– – 262 – (136)
Total, net$609 $(54)$(5)$(14)$(32)$504 

For the Three Months Ended September 30, 2024
IssuancesSalesMaturitiesSettlementsCallsTotal
Investments:
Fixed maturity AFS securities:
Corporate bonds$281 $(61)$– $(170)$– $50 
CMBS14 – – – – 14 
ABS402 (20)– (104)(46)232 
Hybrid and redeemable preferred
securities16 – – – – 16 
Trading securities– – (7)– (6)
Equity securities– – – – 
Mortgage loans on real estate– – – (1)– (1)
Derivative investments– – – – 
Other investments – short-term investments10 – – – – 10 
Other assets – indexed annuity ceded
embedded derivatives51 – – (77)– (26)
Policyholder account balances –
RILA, fixed annuity and
IUL contracts(317)– – 362 – 45 
Total, net$459 $(81)$$$(46)$336 
For the Nine Months Ended September 30, 2025
IssuancesSalesMaturitiesSettlementsCallsTotal
Investments:
Fixed maturity AFS securities:
Corporate bonds$1,002 $(295)$(6)$(391)$(10)$300 
RMBS75 – – (1)– 74 
CMBS74 (15)– – – 59 
ABS1,752 (78)(10)(251)(89)1,324 
Hybrid and redeemable preferred
securities21 (2)– – – 19 
Trading securities83 (60)(5)(11)– 
Equity securities20 (13)– – – 
Mortgage loans on real estate(1)– (3)– (2)
Other investments – short-term investments11 – (10)(16)– (15)
Other assets – indexed annuity ceded
embedded derivatives130 – – (24)– 106 
Policyholder account balances –
RILA, fixed annuity and
IUL contracts(1,057)– – 749 – (308)
Total, net$2,113 $(464)$(31)$52 $(99)$1,571 

For the Nine Months Ended September 30, 2024
IssuancesSalesMaturitiesSettlementsCallsTotal
Investments:
Fixed maturity AFS securities:
Corporate bonds$922 $(260)$(2)$(395)$(1)$264 
RMBS– – – – 
CMBS29 – – – – 29 
ABS1,128 (50)– (223)(57)798 
Hybrid and redeemable preferred
securities16 – – – – 16 
Trading securities(2)– (21)– (17)
Equity securities(1)– – – – 
Mortgage loans on real estate(31)– (6)– (36)
Derivative investments– (1)– – 
Other investments – short-term investments10 – – – – 10 
Other assets – indexed annuity ceded
embedded derivatives103 – – (149)– (46)
Policyholder account balances –
RILA, fixed annuity and
IUL contracts(849)– – 571 – (278)
Total, net$1,377 $(344)$(3)$(223)$(58)$749 
Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings
The following summarizes changes in unrealized gains (losses) included in net income related to financial instruments carried at fair value classified within Level 3 that we still held (in millions):

 For the Three
Months Ended
September 30,
For the Nine
Months Ended
September 30,
2025202420252024
Investments:
Trading securities (1)
$$$$
Equity securities (1)
– (5)(2)
Mortgage loans on real estate (1)
(1)(3)(2)
Derivative investments (1)
34 (9)14 
MRBs (2)
(349)(665)(10)1,357 
Funds withheld reinsurance liabilities –
reinsurance-related embedded derivatives (1)
(192)661 (267)1,246 
Embedded derivatives – indexed annuity
and IUL contracts (1)
239 23 596 755 
Total, net
$(264)$33 $305 $3,374 

(1) Included in realized gain (loss) on the Consolidated Statements of Comprehensive Income (Loss).
(2) Included in market risk benefit gain (loss) on the Consolidated Statements of Comprehensive Income (Loss).
Changes in Unrealized Gains (Losses) Included in OCI
The following summarizes changes in unrealized gains (losses) included in OCI, net of tax, related to financial instruments carried at fair value classified within Level 3 that we still held (in millions):
 For the Three
Months Ended
September 30,
For the Nine
Months Ended
September 30,
2025202420252024
Investments:
Fixed maturity AFS securities:
Corporate bonds$$43 $(14)$
RMBS– – – 
ABS32 47 43 27 
Hybrid and redeemable preferred
securities– – 
Mortgage loans on real estate(1)
Total, net $32 $96 $32 $36 
Components of the Transfers In and Out of Level 3
The following provides the components of the transfers into and out of Level 3 (in millions) as reported above:

 For the Three
Months Ended
September 30, 2025
 For the Three
Months Ended
September 30, 2024
TransfersTransfersTransfersTransfers
IntoOut ofIntoOut of
Level 3Level 3TotalLevel 3Level 3Total
Investments:
Fixed maturity AFS securities:
Corporate bonds$– $(52)$(52)$– $(7)$(7)
RMBS– (67)(67)– (5)(5)
CMBS– – – – (16)(16)
ABS– (72)(72)– (178)(178)
Hybrid and redeemable preferred
securities– – – 10 – 10 
Equity securities– – – – (4)(4)
Other investments – short-term investments– – – 10 – 10 
Total, net $– $(191)$(191)$20 $(210)$(190)

For the Nine
Months Ended
September 30, 2025
For the Nine
Months Ended
September 30, 2024
TransfersTransfersTransfersTransfers
IntoOut ofIntoOut of
Level 3Level 3TotalLevel 3Level 3Total
Investments:
Fixed maturity AFS securities:
Corporate bonds$112 $(53)$59 $22 $(143)$(121)
RMBS– (74)(74)– (5)(5)
CMBS– (7)(7)– (16)(16)
State and municipal bonds– – – – (5)(5)
ABS70 (124)(54)50 (286)(236)
Hybrid and redeemable preferred
securities10 (10)– 10 – 10 
Trading securities24 – 24 – – – 
Equity securities54 – 54 – (4)(4)
Derivative investments– – – – (51)(51)
Other investments – short-term investments– – – 10 – 10 
Total, net$270 $(268)$$92 $(510)$(418)
Fair Value Inputs Quantitative Information
The following summarizes the fair value (in millions), valuation techniques and significant unobservable inputs of the Level 3 fair value measurements as of September 30, 2025:

Weighted
Average
FairValuationSignificantAssumption orInput
ValueTechniqueUnobservable InputsInput Ranges
Range (1)
Assets
Investments:
Fixed maturity AFS
securities:
Corporate bonds$248 Discounted cash flow
Liquidity/duration adjustment (2)
0.0 %– 5.2 %2.0 %
ABSDiscounted cash flow
Liquidity/duration adjustment (2)
1.4 %– 1.4 %1.4 %
CMBS42 Discounted cash flow
Liquidity/duration adjustment (2)
1.7 %– 1.8 %1.8 %
Hybrid and redeemable
preferred securities40 Discounted cash flow
Liquidity/duration adjustment (2)
1.0 %– 2.0 %1.8 %
Equity securitiesDiscounted cash flow
Liquidity/duration adjustment (2)
4.5 %– 4.5 %4.5 %
MRB assets 4,694 Discounted cash flow
Lapse (3)
1.0 %– 30.0 %
(10)
Utilization of GLB withdrawals (4)
85.0 %– 100.0 %93.0 %
Claims utilization factor (5)
50.0 %– 100.0 %
(10)
Premiums utilization factor (5)
80.0 %– 115.0 %
(10)
Non-performance risk (6)
0.2 %– 1.8 %1.4 %
Mortality (7)
(9)
(10)
Volatility (8)
1.0 %– 27.0 %15.1 %
Other assets:
Ceded MRBs (11)
Indexed annuity
ceded embedded
derivatives1,333 Discounted cash flow
Lapse (3)
0.0 %– 9.0 %
(10)
Mortality (7)
(9)
(10)
Liabilities
Policyholder account
balances – indexed annuity
contracts embedded
derivatives$(14,829)Discounted cash flow
Lapse (3)
0.0 %– 9.0 %
(10)
Mortality (7)
(9)
(10)
MRB liabilities(1,190)Discounted cash flow
Lapse (3)
1.0 %– 30.0 %
(10)
Utilization of GLB withdrawals (4)
85.0 %– 100.0 %93.0 %
Claims utilization factor (5)
50.0 %– 100.0 %
(10)
Premiums utilization factor (5)
80.0 %– 115.0 %
(10)
Non-performance risk (6)
0.2 %– 1.8 %1.4 %
Mortality (7)
(9)
(10)
Volatility (8)
1.0 %– 27.0 %15.1 %
Other liabilities – ceded
MRBs (11)
(349)
The following summarizes the fair value (in millions), valuation techniques and significant unobservable inputs of the Level 3 fair value measurements as of December 31, 2024:

Weighted
Average
FairValuationSignificantAssumption orInput
ValueTechniqueUnobservable InputsInput Ranges
Range (1)
Assets
Investments:
Fixed maturity AFS
securities:
Corporate bonds$187 Discounted cash flow
Liquidity/duration adjustment (2)
0.0 %– 3.1 %1.7 %
ABS10 Discounted cash flow
Liquidity/duration adjustment (2)
1.3 %– 1.3 %1.3 %
CMBSDiscounted cash flow
Liquidity/duration adjustment (2)
1.9 %– 1.9 %1.9 %
Hybrid and redeemable
preferred securities19 Discounted cash flow
Liquidity/duration adjustment (2)
1.4 %– 1.9 %1.8 %
Equity securitiesDiscounted cash flow
Liquidity/duration adjustment (2)
4.5 %– 4.5 %4.5 %
MRB assets 4,860 Discounted cash flow
Lapse (3)
1.0 %– 30.0 %
(10)
Utilization of GLB withdrawals (4)
85.0 %– 100.0 %92.0 %
Claims utilization factor (5)
60.0 %– 100.0 %
(10)
Premiums utilization factor (5)
80.0 %– 115.0 %
(10)
Non-performance risk (6)
0.3 %– 2.0 %1.6 %
Mortality (7)
(9)
(10)
Volatility (8)
1.0 %– 29.0 %14.5 %
Other assets:
Ceded MRBs (11)
Indexed annuity
ceded embedded
derivatives1,115 Discounted cash flow
Lapse (3)
0.0 %– 9.0 %
(10)
Mortality (7)
(9)
(10)
Liabilities
Policyholder account
balances – indexed annuity
contracts embedded
derivatives$(12,402)Discounted cash flow
Lapse (3)
0.0 %– 9.0 %
(10)
Mortality (7)
(9)
(10)
MRB liabilities(1,046)Discounted cash flow
Lapse (3)
1.0 %– 30.0 %
(10)
Utilization of GLB withdrawals (4)
85.0 %– 100.0 %92.0 %
Claims utilization factor (5)
60.0 %– 100.0 %
(10)
Premiums utilization factor (5)
80.0 %– 115.0 %
(10)
Non-performance risk (6)
0.3 %– 2.0 %1.6 %
Mortality (7)
(9)
(10)
Volatility (8)
1.0 %– 29.0 %14.5 %
Other liabilities – ceded
MRBs (11)
(381)

(1) Unobservable inputs were weighted by the relative fair value of the instruments, unless otherwise noted.
(2) The liquidity/duration adjustment input represents an estimated market participant composite of adjustments attributable to liquidity premiums, expected durations, structures and credit quality that would be applied to the market observable information of an investment.
(3) The lapse input represents the estimated probability of a contract surrendering during a year, and thereby forgoing any future benefits. The range for indexed annuity contracts represents the lapses during the surrender charge period.
(4) The utilization of GLB withdrawals input represents the estimated percentage of policyholders that utilize the GLB withdrawal riders.
(5) The utilization factors are applied to the present value of claims or premiums, as appropriate, in the MRB calculation to estimate the impact of inefficient GLB withdrawal behavior, including taking less than or more than the maximum GLB withdrawal.
(6) The non-performance risk input represents the estimated additional credit spread that market participants would apply to the market observable discount rate when pricing a contract. The non-performance risk input was weighted by the absolute value of the sensitivity of the reserve to the non-performance risk assumption.
(7) The mortality input represents the estimated probability of when an individual belonging to a particular group, categorized according to age or some other factor such as gender, will die.
(8) The volatility input represents overall volatilities assumed for the underlying variable annuity funds, which include a mixture of equity and fixed-income assets. Volatility assumptions vary by fund due to the benchmarking of different indices. The volatility input was weighted by the relative account balance assigned to each index.
(9) The mortality is based on a combination of company and industry experience, adjusted for improvement factors.
(10) A weighted average input range is not a meaningful measurement for lapse, utilization factors or mortality.
(11) The fair value inputs for ceded MRBs are consistent with those used to value MRB assets and liabilities.
Fair Value Option
The fair value and aggregate contractual principal for mortgage loans on real estate where the fair value option was elected (in millions) were as follows:

As of
September 30,
As of
December 31,
20252024
Fair value$230 $232 
Aggregate contractual principal263 263