Business, Basis of Presentation and Summary of Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of Estimates, Policy [Policy Text Block]	Basis of Presentation The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to adopt accounting policies and make estimates and assumptions that affect amounts reported on the interim condensed consolidated financial statements. In applying these policies and estimates, management makes subjective and complex judgments that frequently require assumptions about matters that are inherently uncertain. Many of these policies, estimates and related judgments are common in the insurance and financial services industries; others are specific to the Company’s business and operations. Actual results could differ from these estimates.
Consolidation, Policy [Policy Text Block]	Consolidation The accompanying interim condensed consolidated financial statements include the accounts of Brighthouse Life Insurance Company and its subsidiaries, as well as partnerships and limited liability companies (“LLC”) that the Company controls. Intercompany accounts and transactions have been eliminated. The Company uses the equity method of accounting for investments in limited partnerships and LLCs when it has more than a minor ownership interest or more than a minor influence over the investee’s operations. The Company generally recognizes its share of the investee’s earnings on a three-month lag in instances where the investee’s financial information is not sufficiently timely or when the investee’s reporting period differs from the Company’s reporting period. When the Company has virtually no influence over the investee’s operations, the investment is carried at fair value. Since the Company is a member of a controlled group of affiliated companies, its results may not be indicative of those of a standalone entity. The accompanying interim condensed consolidated financial statements are unaudited and reflect all adjustments (including normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows for the interim periods presented in conformity with GAAP. Interim results are not necessarily indicative of full year performance. The December 31, 2022 consolidated balance sheet data was derived from audited consolidated financial statements included in Brighthouse Life Insurance Company’s Annual Report on Form 10-K for the year ended December 31, 2022 (the “2022 Annual Report”), which include all disclosures required by GAAP. Therefore, these interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements of the Company included in the 2022 Annual Report. Reclassifications Certain amounts in the prior year period’s interim condensed consolidated financial statements and related footnotes thereto have been reclassified to conform with the 2023 presentation as discussed throughout the Notes to the Interim Condensed Consolidated Financial Statements. See “— Adoption of New Accounting Pronouncements” for discussion of the adoption of new guidance on long-duration contracts in the first quarter of 2023, parts of which were retrospectively applied to prior periods presented in the interim condensed consolidated financial statements.
Liability for Future Policy Benefit [Policy Text Block]	Liability for Future Policy Benefits The Company establishes a liability for future policy benefits (“LFPB”) for non-participating term and whole life insurance and income annuities. LFPBs are accrued over time as revenue is recognized based on a net premium ratio. The net premium ratio is the portion of gross premiums required to provide for all future benefits. LFPBs are established using the Company’s current assumptions of future cash flows, discounted at a rate that approximates a single A corporate bond curve. The Company generally aggregates insurance contracts into groupings by issue year, product and segment for determining the net premium ratio and related LFPBs. The Company reviews cash flow assumptions regularly, and if they change significantly, LFPBs are adjusted by determining a revised net premium ratio. The revised net premium ratio is calculated as of contract inception using both actual historical experience and updated future cash flow assumptions. The recalculated net premium ratio is applied to derive a remeasurement gain or loss recognized in the current period net income. For insurance policies in-force as of December 31, 2020, January 1, 2021 is considered the contract inception date. The net premium ratio is also updated quarterly for the difference between actual and expected experience. The net premium ratio is not updated for changes in discount rate assumptions, as changes in the discount rate are updated quarterly and the impacts are reflected in other comprehensive income (loss) (“OCI”). The discount rate assumption is determined by developing a yield curve based on market observable yields for upper-medium grade fixed income instruments derived from an external index. The yield curve is applied to the expected future cash flows used in the measurement of LFPBs based on the duration characteristics of those liabilities. The most significant cash flow assumptions used in the establishment of LFPBs are mortality, policy lapses and market interest rates. See Note 4 for more information on the effect of changes in assumptions on the measurement of LFPBs. The Company also establishes an LFPB for participating term and whole life insurance using a net premium ratio and the Company’s current assumptions of future cash flows. Assumptions are determined at issuance of the policy and are not updated unless a premium deficiency exists. A premium deficiency exists when the LFPB plus the present value of expected future gross premiums are less than expected future benefits and expenses (based on current assumptions). When a premium deficiency exists, the Company will reduce any deferred acquisition costs and may also establish an additional liability to eliminate the deficiency. See Note 4 for more information on assumptions used in establishing LFPBs related to participating term and whole life insurance.
Policyholder Accounts, Policy [Policy Text Block]	Policyholder Account Balances The Company establishes a policyholder account balance liability for customer deposits on universal life insurance, universal life insurance with secondary guarantees (“ULSG”) and deferred annuity contracts. The policyholder account balance liability is equal to the sum of deposits, plus interest credited, less charges and withdrawals, excluding the impact of any applicable charge that may be incurred upon surrender. The Company also holds additional liabilities for certain product features including secondary guarantees on universal life insurance contracts and the crediting rates associated with index-linked annuities. Additional Liabilities for ULSG The Company establishes a liability in addition to the account balance for secondary guarantees on universal life insurance. These liabilities are determined by estimating the expected value of death benefits payable when the account balance is projected to be zero and recognizing those benefits ratably over the contract period based on total expected assessments. The benefits used in calculating the liabilities are based on the average benefits payable over a range of scenarios. The Company also maintains a liability for profits followed by losses on ULSG determined by projecting future earnings and establishing a liability to offset losses that are expected to occur in later years. Both ULSG liabilities are adjusted for the effects of unrealized investment gains and losses. The Company reviews cash flow assumptions regularly, and, if they change significantly, the liability for secondary guarantees is adjusted by a cumulative charge or credit to net income. Liabilities for secondary guarantees are presented within future policy benefits with changes in the liabilities reported in policyholder benefits and claims, except for the effects of unrealized investment gains and losses, which are reported in OCI. The most significant assumptions used in estimating liabilities for secondary guarantees are the general account rate of return, premium persistency, mortality and lapses. See Note 4 for more information on the effect of changes in assumptions on the measurement of liabilities for secondary guarantees.
Market Risk Benefit [Policy Text Block]	Market Risk Benefits on Annuity Guarantees Market risk benefits (“MRB”) are contracts or contract features that provide protection to the policyholder from capital markets risk by transferring such risks to the Company. MRBs are required to be separated from the deferred annuity host contract and measured at fair value. The Company establishes MRB assets and liabilities for guaranteed minimum benefits on variable annuity contracts including guaranteed minimum death benefits (“GMDB”), guaranteed minimum income benefits (“GMIB”), guaranteed minimum accumulation benefits (“GMAB”) and guaranteed minimum withdrawal benefits (“GMWB”). MRB assets are also established for reinsured benefits related to these guarantees. Certain index-linked annuity products may also have guaranteed minimum benefits classified as MRBs. The measurement of fair value includes an adjustment for the risk that the Company fails to satisfy its obligations, which is referred to as nonperformance risk, as well as risk margin to capture the non-capital markets risks of the instrument, which represents the additional compensation a market participant would require to assume the risks related to the uncertainties in certain actuarial assumptions. MRBs are measured at estimated fair value, with changes reported in change in MRBs on the consolidated statements of operations, except for the change due to nonperformance risk, which is reported in OCI. See Note 4 for more information on the effect of changes in inputs and assumptions on the measurement of MRBs and Note 8 for more information on the determination of fair value of MRBs.
Derivatives, Embedded Derivatives [Policy Text Block]	Embedded Derivatives on Index-Linked Annuities The Company issues, and assumes through reinsurance, index-linked annuities which allow the policyholder to participate in returns from certain specified equity indices. The crediting rates associated with these features are classified as embedded derivatives and measured at estimated fair value, with changes in estimated fair value reported in net derivative gains (losses). These embedded derivatives are classified within policyholder account balances on the consolidated balance sheets. Embedded derivative liabilities are required to be separated from the deferred annuity host contract and measured at fair value. The estimated fair value is determined using a combination of an option pricing model and an option-budget approach. Under this approach, the Company estimates the cost of funding the crediting rate using option pricing and establishes that cost on the balance sheet as a reduction to the initial deposit amount. The estimate of fair value includes an adjustment for nonperformance risk, as well as a risk margin. Actuarial assumptions are reviewed at least annually, and if they change significantly, the estimated fair value is adjusted through net income. Capital market inputs used in the measurement of index-linked crediting rate embedded derivatives are updated quarterly through net income. The reduction to the initial deposit is accreted back up to the initial deposit over the estimated life of the contract. Embedded derivatives related to index-linked annuities are presented within policyholder account balances while changes in the estimated fair value are reported in net derivative gains (losses). For more information on the determination of estimated fair value of embedded derivatives, see Note 8.
Insurance Premiums Revenue Recognition, Policy [Policy Text Block]	Recognition of Revenues and Deposits on Insurance Contracts Premiums related to traditional long-duration contracts are recognized as revenues when due from policyholders. When premiums for income annuities are due over a significantly shorter period than the period over which policyholder benefits are incurred, the Company establishes a deferred profit liability (“DPL”) for the excess of the gross premium over the net premium. DPLs are amortized into net income in proportion to the amount of expected future benefit payments. Assumptions used in the measurement of the DPL are updated at the same time as the related LFPBs, with the updated estimates used to recalculate the DPL as of contract inception. The remeasurement gain or loss from updating DPLs is recognized in current period net income along with the related change in LFPBs. Deposits related to universal life insurance, deferred annuity contracts and investment contracts are credited to policyholder account balances. Revenues from such contracts consist of asset-based investment management fees, cost of insurance charges, risk charges, policy administration fees and surrender charges. These fees, which are included in universal life and investment-type product policy fees, are recognized when assessed to the contract holder, except for non-level insurance charges which are deferred by the establishment of an unearned revenue liability and amortized over the expected life of the contracts. Premiums and policy fees are presented net of reinsurance.
Deferred Policy Acquisition Costs, Policy [Policy Text Block]	Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles The Company incurs significant costs in connection with acquiring new and renewal insurance business. Costs that are directly related to the successful acquisition or renewal of insurance contracts are capitalized as deferred policy acquisition costs (“DAC”). These costs mainly consist of commissions and include the portion of employees’ compensation and benefits related to time spent selling, underwriting or processing the issuance of new insurance contracts. All other acquisition-related costs are expensed as incurred. Value of business acquired (“VOBA”) is an intangible asset resulting from a business combination that represents the excess of book value over the estimated fair value of acquired insurance, annuity and investment-type contracts in-force as of the acquisition date. The Company amortizes DAC and VOBA in a manner that approximates a straight-line basis over the expected life of the related contracts. For life insurance contracts, amortization is based on projections of amounts of insurance in-force, while projections of policy counts are used for deferred annuity contracts and expected future benefits payments for income annuities. These assumptions are reviewed at least annually, and if they change significantly, updates are recognized through changes to future amortization. VOBA balances are tested annually to determine if the balance is deemed unrecoverable from expected future profits. All changes in DAC and VOBA balances are recorded to net income. Periodically, the Company modifies product benefits, features, rights or coverages that occur by the exchange of an existing contract for a new contract, or by amendment, endorsement, or rider to a contract, or by election or coverage within a contract. If a modification is considered to have substantially changed the contract, the associated DAC or VOBA is written off immediately through net income and any new acquisition costs associated with the replacement contract are deferred. If the modification does not substantially change the contract, the DAC or VOBA amortization on the original contract will continue and any acquisition costs associated with the related modification are expensed.
Sales Inducements to Contract Holders, Policy [Policy Text Block]	The Company also has intangible assets representing deferred sales inducements (“DSI”), which are included in other assets, and unearned revenue liabilities, which are included in other policy-related balances. The Company defers sales inducements and unearned revenue and amortizes the balances using the same methodology and assumptions used to amortize DAC and VOBA.
New Accounting Pronouncements, Policy [Policy Text Block]	Adoption of New Accounting Pronouncements Changes to GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASU”) to the FASB Accounting Standards Codification. The Company considers the applicability and impact of all ASUs. Except as noted below, there were no significant ASUs adopted during the period ended September 30, 2023. In March 2022, the FASB issued new guidance on Troubled Debt Restructurings (“TDR”) (ASU 2022-02, Financial Instruments—Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures). This ASU eliminates TDR recognition and measurement guidance and, instead, requires that an entity evaluate (consistent with the accounting for other loan modifications) whether the modification represents a new loan or a continuation of an existing loan. The amendments also enhance existing disclosure requirements and introduce new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. The Company adopted this guidance on January 1, 2023. This ASU was applied prospectively and did not have a material impact on the consolidated financial statements upon adoption but could change the future recognition and measurement of modified loans and other receivables. In August 2018, the FASB issued new guidance on long-duration contracts (ASU 2018-12, Financial Services-Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts (“LDTI”)). LDTI is effective for fiscal years beginning after January 1, 2023. LDTI resulted in significant changes to the measurement, presentation and disclosure requirements for long-duration insurance contracts. A summary of the most significant changes is provided below: (1) Guaranteed benefits associated with variable annuity and certain fixed annuity contracts have been classified and presented separately on the consolidated balance sheets as MRBs. MRBs are now measured at estimated fair value through net income and reported separately on the consolidated statements of operations, except for nonperformance risk changes, which will be recognized in OCI. (2) Cash flow assumptions used to measure LFPBs on traditional long-duration contracts (including term and non-participating whole life insurance and immediate annuities) have been updated on an annual basis using a retrospective method. The resulting remeasurement gain or loss is now reported separately on the consolidated statements of operations along with the remeasurement gain or loss on universal life-type contract liabilities. (3) The discount rate assumption used to measure the liability for traditional long-duration contracts is now based on an upper-medium grade fixed income yield, updated quarterly, with changes recognized in OCI. (4) DAC for all insurance products are required to be amortized on a constant-level basis over the expected term of the contracts, using amortization methods that are not a function of revenue or profit emergence. Changes in assumptions used to amortize DAC have been recognized as a revision to future amortization amounts. (5) There was a significant increase in required disclosures, including disaggregated rollforwards of insurance contract assets and liabilities supplemented by qualitative and quantitative information regarding the cash flows, assumptions, methods and judgements used to measure those balances. The transition date was January 1, 2021. MRB changes were required to be applied on a retrospective basis, while the changes for insurance liability assumption updates and DAC amortization were applied to existing carrying amounts on the transition date. The cumulative effect, on an after-tax basis, of the adoption of ASU 2018-12 as of the transition date was a $5.2 billion decrease to retained earnings and a $3.9 billion decrease to accumulated other comprehensive income (loss) (“AOCI”). See Note 2 for more detailed information on the impacts of the ASU to the Company’s financial statements.
Investments, Policy [Policy Text Block]	For fixed maturity securities in an unrealized loss position, management first assesses whether the Company intends to sell, or whether it is more likely than not it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to estimated fair value through net investment gains (losses). For fixed maturity securities that do not meet the aforementioned criteria, management evaluates whether the decline in estimated fair value has resulted from credit losses or other factors. Inherent in management’s evaluation of the security are assumptions and estimates about the operations of the issuer and its future earnings potential. Considerations used in the allowance for credit loss evaluation process include, but are not limited to: (i) the extent to which estimated fair value is less than amortized cost; (ii) any changes to the rating of the security by a rating agency; (iii) adverse conditions specifically related to the security, industry or geographic area; and (iv) payment structure of the fixed maturity security and the likelihood of the issuer being able to make payments in the future or the issuer’s failure to make scheduled interest and principal payments. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss is deemed to exist and an allowance for credit losses is recorded, limited by the amount that the estimated fair value is less than the amortized cost basis, with a corresponding charge to net investment gains (losses). Any unrealized losses that have not been recorded through an allowance for credit losses are recognized in OCI. Once a security specific allowance for credit losses is established, the present value of cash flows expected to be collected from the security continues to be reassessed. Any changes in the security specific allowance for credit losses are recorded as a provision for (or reversal of) credit loss expense in net investment gains (losses). Fixed maturity securities are also evaluated to determine whether any amounts have become uncollectible. When all, or a portion, of a security is deemed uncollectible, the uncollectible portion is written-off with an adjustment to amortized cost and a corresponding reduction to the allowance for credit losses. Accrued interest receivables are presented separate from the amortized cost basis of fixed maturity securities. An allowance for credit losses is not estimated on an accrued interest receivable, rather receivable balances 90-days past due are deemed uncollectible and are written off with a corresponding reduction to net investment income. Fixed maturity securities are also evaluated to determine if they qualify as purchased financial assets with credit deterioration (“PCD”). To determine if the credit deterioration experienced since origination is more than insignificant, both (i) the extent of the credit deterioration and (ii) any rating agency downgrades are evaluated. For securities categorized as PCD assets, the present value of cash flows expected to be collected from the security are compared to the par value of the security. If the present value of cash flows expected to be collected is less than the par value, credit losses are embedded in the purchase price of the PCD asset. In this situation, both an allowance for credit losses and amortized cost gross-up is recorded, limited by the amount that the estimated fair value is less than the grossed-up amortized cost basis. Any difference between the purchase price and the present value of cash flows is amortized or accreted into net investment income over the life of the PCD asset. Any subsequent PCD asset allowance for credit losses is evaluated in a manner similar to the process described above for fixed maturity securities.Accrued interest receivables are presented separate from the amortized cost basis of mortgage loans. An allowance for credit losses is generally not estimated on an accrued interest receivable, rather when a loan is placed in nonaccrual status the associated accrued interest receivable balance is written off with a corresponding reduction to net investment income. The allowance for credit losses is estimated using relevant available information, from internal and external sources, relating to past events, current conditions, and a reasonable and supportable forecast. Historical credit loss experience provides the basis for estimating expected credit losses. Adjustments to historical loss information are made for differences in current loan-specific risk characteristics and environmental conditions. A reasonable and supportable forecast period of two-years is used with an input reversion period of one-year. Mortgage loans are evaluated in each of the three portfolio segments to determine the allowance for credit losses. The loan-level loss rates are determined using individual loan terms and characteristics, risk pools/internal ratings, national economic forecasts, prepayment speeds, and estimated default and loss severity. The resulting loss rates are applied to the mortgage loan’s amortized cost to generate an allowance for credit losses. In certain situations, the allowance for credit losses is measured as the difference between the loan’s amortized cost and liquidation value of the collateral. These situations include collateral dependent loans, modifications, foreclosure probable loans, and loans with dissimilar risk characteristics. Mortgage loans are also evaluated to determine if they qualify as PCD assets. To determine if the credit deterioration experienced since origination is more than insignificant, the extent of credit deterioration is evaluated. All re-performing/modified loan (“RPL”) pools purchased after December 31, 2019 are determined to have been acquired with evidence of more than insignificant credit deterioration since origination and are classified as PCD assets. RPLs are pools of residential mortgage loans acquired at a discount or premium which have both credit and non-credit components. For PCD mortgage loans, the allowance for credit losses is determined using a similar methodology described above, except the loss-rate is determined at the pool level instead of the individual loan level. The initial allowance for credit losses, determined on a collective basis, is then allocated to the individual loans. The initial amortized cost of the loan is grossed-up to reflect the sum of the loan’s purchase price and allowance for credit losses. The difference between the grossed-up amortized cost basis and the par value of the loan is a non-credit discount or premium, which is accreted or amortized into net investment income over the remaining life of the loan. Any subsequent PCD mortgage loan allowance for credit losses is evaluated in a manner similar to the process described above for each of the three portfolio segments.Delinquency is defined consistent with industry practice, when mortgage loans are past due as follows: commercial and residential mortgage loans — 60 days; and agricultural mortgage loans — 90 days.Mortgage loans are placed in a nonaccrual status if there are concerns regarding collectability of future payments or the loan is past due, unless the past due loan is well collateralized.
Derivatives, Policy [Policy Text Block]	Types of Derivative Instruments and Derivative Strategies The Company maintains an overall risk management strategy that incorporates the use of derivative instruments to minimize its exposure to various market risks. Commonly used derivative instruments include, but are not necessarily limited to: •Interest rate derivatives: swaps, floors, caps, swaptions and forwards; •Foreign currency exchange rate derivatives: forwards and swaps; •Equity market derivatives: options, total return swaps and hybrid options; and •Credit derivatives: single and index reference credit default swaps and swaptions. Counterparty Credit RiskGenerally, the credit exposure is the fair value at the reporting date less any collateral received from the counterparty.
Income Tax, Policy [Policy Text Block]	The effects of income taxes on amounts recorded to AOCI are also recognized in AOCI. These income tax effects are released from AOCI when the related activity is reclassified into results from operations.

Business, Basis of Presentation and Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2023

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Use of Estimates, Policy [Policy Text Block]

Basis of Presentation

The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America (“GAAP”) requires management to adopt accounting policies and make estimates and assumptions that affect amounts reported on the interim condensed consolidated financial statements. In applying these policies and estimates, management makes subjective and complex judgments that frequently require assumptions about matters that are inherently uncertain. Many of these policies, estimates and related judgments are common in the insurance and financial services industries; others are specific to the Company’s business and operations. Actual results could differ from these estimates.

Consolidation, Policy [Policy Text Block]

Consolidation

The accompanying interim condensed consolidated financial statements include the accounts of Brighthouse Life Insurance Company and its subsidiaries, as well as partnerships and limited liability companies (“LLC”) that the Company controls. Intercompany accounts and transactions have been eliminated.

The Company uses the equity method of accounting for investments in limited partnerships and LLCs when it has more than a minor ownership interest or more than a minor influence over the investee’s operations. The Company generally recognizes its share of the investee’s earnings on a three-month lag in instances where the investee’s financial information is not sufficiently timely or when the investee’s reporting period differs from the Company’s reporting period. When the Company has virtually no influence over the investee’s operations, the investment is carried at fair value.

Since the Company is a member of a controlled group of affiliated companies, its results may not be indicative of those of a standalone entity.

The accompanying interim condensed consolidated financial statements are unaudited and reflect all adjustments (including normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows for the interim periods presented in conformity with GAAP. Interim results are not necessarily indicative of full year performance. The December 31, 2022 consolidated balance sheet data was derived from audited consolidated financial statements included in Brighthouse Life Insurance Company’s Annual Report on Form 10-K for the year ended December 31, 2022 (the “2022 Annual Report”), which include all disclosures required by GAAP. Therefore, these interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements of the Company included in the 2022 Annual Report.

Reclassifications

Certain amounts in the prior year period’s interim condensed consolidated financial statements and related footnotes thereto have been reclassified to conform with the 2023 presentation as discussed throughout the Notes to the Interim Condensed Consolidated Financial Statements. See “— Adoption of New Accounting Pronouncements” for discussion of the adoption of new guidance on long-duration contracts in the first quarter of 2023, parts of which were retrospectively applied to prior periods presented in the interim condensed consolidated financial statements.

Liability for Future Policy Benefit [Policy Text Block]

Liability for Future Policy Benefits

The Company establishes a liability for future policy benefits (“LFPB”) for non-participating term and whole life insurance and income annuities. LFPBs are accrued over time as revenue is recognized based on a net premium ratio. The net premium ratio is the portion of gross premiums required to provide for all future benefits. LFPBs are established using the Company’s current assumptions of future cash flows, discounted at a rate that approximates a single A corporate bond curve. The Company generally aggregates insurance contracts into groupings by issue year, product and segment for determining the net premium ratio and related LFPBs.

The Company reviews cash flow assumptions regularly, and if they change significantly, LFPBs are adjusted by determining a revised net premium ratio. The revised net premium ratio is calculated as of contract inception using both actual historical experience and updated future cash flow assumptions. The recalculated net premium ratio is applied to derive a remeasurement gain or loss recognized in the current period net income. For insurance policies in-force as of December 31, 2020, January 1, 2021 is considered the contract inception date. The net premium ratio is also updated quarterly for the difference between actual and expected experience.

The net premium ratio is not updated for changes in discount rate assumptions, as changes in the discount rate are updated quarterly and the impacts are reflected in other comprehensive income (loss) (“OCI”). The discount rate assumption is determined by developing a yield curve based on market observable yields for upper-medium grade fixed income instruments derived from an external index. The yield curve is applied to the expected future cash flows used in the measurement of LFPBs based on the duration characteristics of those liabilities.

The most significant cash flow assumptions used in the establishment of LFPBs are mortality, policy lapses and market interest rates. See Note 4 for more information on the effect of changes in assumptions on the measurement of LFPBs.

The Company also establishes an LFPB for participating term and whole life insurance using a net premium ratio and the Company’s current assumptions of future cash flows. Assumptions are determined at issuance of the policy and are not updated unless a premium deficiency exists. A premium deficiency exists when the LFPB plus the present value of expected future gross premiums are less than expected future benefits and expenses (based on current assumptions). When a premium deficiency exists, the Company will reduce any deferred acquisition costs and may also establish an additional liability to eliminate the deficiency. See Note 4 for more information on assumptions used in establishing LFPBs related to participating term and whole life insurance.

Policyholder Accounts, Policy [Policy Text Block]

Policyholder Account Balances

The Company establishes a policyholder account balance liability for customer deposits on universal life insurance, universal life insurance with secondary guarantees (“ULSG”) and deferred annuity contracts. The policyholder account balance liability is equal to the sum of deposits, plus interest credited, less charges and withdrawals, excluding the impact of any applicable charge that may be incurred upon surrender. The Company also holds additional liabilities for certain product features including secondary guarantees on universal life insurance contracts and the crediting rates associated with index-linked annuities.

Additional Liabilities for ULSG

The Company establishes a liability in addition to the account balance for secondary guarantees on universal life insurance. These liabilities are determined by estimating the expected value of death benefits payable when the account balance is projected to be zero and recognizing those benefits ratably over the contract period based on total expected assessments. The benefits used in calculating the liabilities are based on the average benefits payable over a range of scenarios. The Company also maintains a liability for profits followed by losses on ULSG determined by projecting future earnings and establishing a liability to offset losses that are expected to occur in later years. Both ULSG liabilities are adjusted for the effects of unrealized investment gains and losses.

The Company reviews cash flow assumptions regularly, and, if they change significantly, the liability for secondary guarantees is adjusted by a cumulative charge or credit to net income. Liabilities for secondary guarantees are presented within future policy benefits with changes in the liabilities reported in policyholder benefits and claims, except for the effects of unrealized investment gains and losses, which are reported in OCI.

The most significant assumptions used in estimating liabilities for secondary guarantees are the general account rate of return, premium persistency, mortality and lapses. See Note 4 for more information on the effect of changes in assumptions on the measurement of liabilities for secondary guarantees.

Market Risk Benefit [Policy Text Block]

Market Risk Benefits on Annuity Guarantees

Market risk benefits (“MRB”) are contracts or contract features that provide protection to the policyholder from capital markets risk by transferring such risks to the Company. MRBs are required to be separated from the deferred annuity host contract and measured at fair value. The Company establishes MRB assets and liabilities for guaranteed minimum benefits on variable annuity contracts including guaranteed minimum death benefits (“GMDB”), guaranteed minimum income benefits (“GMIB”), guaranteed minimum accumulation benefits (“GMAB”) and guaranteed minimum withdrawal benefits (“GMWB”). MRB assets are also established for reinsured benefits related to these guarantees. Certain index-linked annuity products may also have guaranteed minimum benefits classified as MRBs.

The measurement of fair value includes an adjustment for the risk that the Company fails to satisfy its obligations, which is referred to as nonperformance risk, as well as risk margin to capture the non-capital markets risks of the instrument, which represents the additional compensation a market participant would require to assume the risks related to the uncertainties in certain actuarial assumptions. MRBs are measured at estimated fair value, with changes reported in change in MRBs on the consolidated statements of operations, except for the change due to nonperformance risk, which is reported in OCI.

See Note 4 for more information on the effect of changes in inputs and assumptions on the measurement of MRBs and Note 8 for more information on the determination of fair value of MRBs.

Derivatives, Embedded Derivatives [Policy Text Block]

Embedded Derivatives on Index-Linked Annuities

The Company issues, and assumes through reinsurance, index-linked annuities which allow the policyholder to participate in returns from certain specified equity indices. The crediting rates associated with these features are classified as embedded derivatives and measured at estimated fair value, with changes in estimated fair value reported in net derivative gains (losses). These embedded derivatives are classified within policyholder account balances on the consolidated balance sheets.

Embedded derivative liabilities are required to be separated from the deferred annuity host contract and measured at fair value. The estimated fair value is determined using a combination of an option pricing model and an option-budget approach. Under this approach, the Company estimates the cost of funding the crediting rate using option pricing and establishes that cost on the balance sheet as a reduction to the initial deposit amount. The estimate of fair value includes an adjustment for nonperformance risk, as well as a risk margin.

Actuarial assumptions are reviewed at least annually, and if they change significantly, the estimated fair value is adjusted through net income. Capital market inputs used in the measurement of index-linked crediting rate embedded derivatives are updated quarterly through net income. The reduction to the initial deposit is accreted back up to the initial deposit over the estimated life of the contract. Embedded derivatives related to index-linked annuities are presented within policyholder account balances while changes in the estimated fair value are reported in net derivative gains (losses).

For more information on the determination of estimated fair value of embedded derivatives, see Note 8.

Insurance Premiums Revenue Recognition, Policy [Policy Text Block]

Recognition of Revenues and Deposits on Insurance Contracts

Premiums related to traditional long-duration contracts are recognized as revenues when due from policyholders. When premiums for income annuities are due over a significantly shorter period than the period over which policyholder benefits are incurred, the Company establishes a deferred profit liability (“DPL”) for the excess of the gross premium over the net premium. DPLs are amortized into net income in proportion to the amount of expected future benefit payments. Assumptions used in the measurement of the DPL are updated at the same time as the related LFPBs, with the updated estimates used to recalculate the DPL as of contract inception. The remeasurement gain or loss from updating DPLs is recognized in current period net income along with the related change in LFPBs.

Deposits related to universal life insurance, deferred annuity contracts and investment contracts are credited to policyholder account balances. Revenues from such contracts consist of asset-based investment management fees, cost of insurance charges, risk charges, policy administration fees and surrender charges. These fees, which are included in universal life and investment-type product policy fees, are recognized when assessed to the contract holder, except for non-level insurance charges which are deferred by the establishment of an unearned revenue liability and amortized over the expected life of the contracts.

Premiums and policy fees are presented net of reinsurance.

Deferred Policy Acquisition Costs, Policy [Policy Text Block]

Deferred Policy Acquisition Costs, Value of Business Acquired and Other Intangibles

The Company incurs significant costs in connection with acquiring new and renewal insurance business. Costs that are directly related to the successful acquisition or renewal of insurance contracts are capitalized as deferred policy acquisition costs (“DAC”). These costs mainly consist of commissions and include the portion of employees’ compensation and benefits related to time spent selling, underwriting or processing the issuance of new insurance contracts. All other acquisition-related costs are expensed as incurred.

Value of business acquired (“VOBA”) is an intangible asset resulting from a business combination that represents the excess of book value over the estimated fair value of acquired insurance, annuity and investment-type contracts in-force as of the acquisition date.

The Company amortizes DAC and VOBA in a manner that approximates a straight-line basis over the expected life of the related contracts. For life insurance contracts, amortization is based on projections of amounts of insurance in-force, while projections of policy counts are used for deferred annuity contracts and expected future benefits payments for income annuities. These assumptions are reviewed at least annually, and if they change significantly, updates are recognized through changes to future amortization. VOBA balances are tested annually to determine if the balance is deemed unrecoverable from expected future profits. All changes in DAC and VOBA balances are recorded to net income.

Periodically, the Company modifies product benefits, features, rights or coverages that occur by the exchange of an existing contract for a new contract, or by amendment, endorsement, or rider to a contract, or by election or coverage within a contract. If a modification is considered to have substantially changed the contract, the associated DAC or VOBA is written off immediately through net income and any new acquisition costs associated with the replacement contract are deferred. If the modification does not substantially change the contract, the DAC or VOBA amortization on the original contract will continue and any acquisition costs associated with the related modification are expensed.

Sales Inducements to Contract Holders, Policy [Policy Text Block]

The Company also has intangible assets representing deferred sales inducements (“DSI”), which are included in other assets, and unearned revenue liabilities, which are included in other policy-related balances. The Company defers sales inducements and unearned revenue and amortizes the balances using the same methodology and assumptions used to amortize DAC and VOBA.

New Accounting Pronouncements, Policy [Policy Text Block]

Adoption of New Accounting Pronouncements

Changes to GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of accounting standards updates (“ASU”) to the FASB Accounting Standards Codification. The Company considers the applicability and impact of all ASUs. Except as noted below, there were no significant ASUs adopted during the period ended September 30, 2023.

In March 2022, the FASB issued new guidance on Troubled Debt Restructurings (“TDR”) (ASU 2022-02, Financial Instruments—Credit Losses (Topic 326): Troubled Debt Restructurings and Vintage Disclosures). This ASU eliminates TDR recognition and measurement guidance and, instead, requires that an entity evaluate (consistent with the accounting for other loan modifications) whether the modification represents a new loan or a continuation of an existing loan. The amendments also enhance existing disclosure requirements and introduce new requirements related to certain modifications of receivables made to borrowers experiencing financial difficulty. The Company adopted this guidance on January 1, 2023. This ASU was applied prospectively and did not have a material impact on the consolidated financial statements upon adoption but could change the future recognition and measurement of modified loans and other receivables.

In August 2018, the FASB issued new guidance on long-duration contracts (ASU 2018-12, Financial Services-Insurance (Topic 944): Targeted Improvements to the Accounting for Long-Duration Contracts (“LDTI”)). LDTI is effective for fiscal years beginning after January 1, 2023. LDTI resulted in significant changes to the measurement, presentation and disclosure requirements for long-duration insurance contracts. A summary of the most significant changes is provided below:

(1) Guaranteed benefits associated with variable annuity and certain fixed annuity contracts have been classified and presented separately on the consolidated balance sheets as MRBs. MRBs are now measured at estimated fair value through net income and reported separately on the consolidated statements of operations, except for nonperformance risk changes, which will be recognized in OCI.

(2) Cash flow assumptions used to measure LFPBs on traditional long-duration contracts (including term and non-participating whole life insurance and immediate annuities) have been updated on an annual basis using a retrospective method. The resulting remeasurement gain or loss is now reported separately on the consolidated statements of operations along with the remeasurement gain or loss on universal life-type contract liabilities.

(3) The discount rate assumption used to measure the liability for traditional long-duration contracts is now based on an upper-medium grade fixed income yield, updated quarterly, with changes recognized in OCI.

(4) DAC for all insurance products are required to be amortized on a constant-level basis over the expected term of the contracts, using amortization methods that are not a function of revenue or profit emergence. Changes in assumptions used to amortize DAC have been recognized as a revision to future amortization amounts.

(5) There was a significant increase in required disclosures, including disaggregated rollforwards of insurance contract assets and liabilities supplemented by qualitative and quantitative information regarding the cash flows, assumptions, methods and judgements used to measure those balances.

The transition date was January 1, 2021. MRB changes were required to be applied on a retrospective basis, while the changes for insurance liability assumption updates and DAC amortization were applied to existing carrying amounts on the transition date.

The cumulative effect, on an after-tax basis, of the adoption of ASU 2018-12 as of the transition date was a $5.2 billion decrease to retained earnings and a $3.9 billion decrease to accumulated other comprehensive income (loss) (“AOCI”). See Note 2 for more detailed information on the impacts of the ASU to the Company’s financial statements.

Investments, Policy [Policy Text Block]

For fixed maturity securities in an unrealized loss position, management first assesses whether the Company intends to sell, or whether it is more likely than not it will be required to sell the security before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the security’s amortized cost basis is written down to estimated fair value through net investment gains (losses). For fixed maturity securities that do not meet the aforementioned criteria, management evaluates whether the decline in estimated fair value has resulted from credit losses or other factors. Inherent in management’s evaluation of the security are assumptions and estimates about the operations of the issuer and its future earnings potential. Considerations used in the allowance for credit loss evaluation process include, but are not limited to: (i) the extent to which estimated fair value is less than amortized cost; (ii) any changes to the rating of the security by a rating agency; (iii) adverse conditions specifically related to the security, industry or geographic area; and (iv) payment structure of the fixed maturity security and the likelihood of the issuer being able to make payments in the future or the issuer’s failure to make scheduled interest and principal payments. If this assessment indicates that a credit loss exists, the present value of cash flows expected to be collected from the security are compared to the amortized cost basis of the security. If the present value of cash flows expected to be collected is less than the amortized cost basis, a credit loss is deemed to exist and an allowance for credit losses is recorded, limited by the amount that the estimated fair value is less than the amortized cost basis, with a corresponding charge to net investment gains (losses). Any unrealized losses that have not been recorded through an allowance for credit losses are recognized in OCI.

Once a security specific allowance for credit losses is established, the present value of cash flows expected to be collected from the security continues to be reassessed. Any changes in the security specific allowance for credit losses are recorded as a provision for (or reversal of) credit loss expense in net investment gains (losses).

Fixed maturity securities are also evaluated to determine whether any amounts have become uncollectible. When all, or a portion, of a security is deemed uncollectible, the uncollectible portion is written-off with an adjustment to amortized cost and a corresponding reduction to the allowance for credit losses.

Accrued interest receivables are presented separate from the amortized cost basis of fixed maturity securities. An allowance for credit losses is not estimated on an accrued interest receivable, rather receivable balances 90-days past due are deemed uncollectible and are written off with a corresponding reduction to net investment income. Fixed maturity securities are also evaluated to determine if they qualify as purchased financial assets with credit deterioration (“PCD”). To determine if the credit deterioration experienced since origination is more than insignificant, both (i) the extent of the credit deterioration and (ii) any rating agency downgrades are evaluated. For securities categorized as PCD assets, the present value of cash flows expected to be collected from the security are compared to the par value of the security. If the present value of cash flows expected to be collected is less than the par value, credit losses are embedded in the purchase price of the PCD asset. In this situation, both an allowance for credit losses and amortized cost gross-up is recorded, limited by the amount that the estimated fair value is less than the grossed-up amortized cost basis. Any difference between the purchase price and the present value of cash flows is amortized or accreted into net investment income over the life of the PCD asset. Any subsequent PCD asset allowance for credit losses is evaluated in a manner similar to the process described above for fixed maturity securities.Accrued interest receivables are presented separate from the amortized cost basis of mortgage loans. An allowance for credit losses is generally not estimated on an accrued interest receivable, rather when a loan is placed in nonaccrual status the associated accrued interest receivable balance is written off with a corresponding reduction to net investment income.

The allowance for credit losses is estimated using relevant available information, from internal and external sources, relating to past events, current conditions, and a reasonable and supportable forecast. Historical credit loss experience provides the basis for estimating expected credit losses. Adjustments to historical loss information are made for differences in current loan-specific risk characteristics and environmental conditions. A reasonable and supportable forecast period of two-years is used with an input reversion period of one-year.

Mortgage loans are evaluated in each of the three portfolio segments to determine the allowance for credit losses. The loan-level loss rates are determined using individual loan terms and characteristics, risk pools/internal ratings, national economic forecasts, prepayment speeds, and estimated default and loss severity.

The resulting loss rates are applied to the mortgage loan’s amortized cost to generate an allowance for credit losses. In certain situations, the allowance for credit losses is measured as the difference between the loan’s amortized cost and liquidation value of the collateral. These situations include collateral dependent loans, modifications, foreclosure probable loans, and loans with dissimilar risk characteristics.

Mortgage loans are also evaluated to determine if they qualify as PCD assets. To determine if the credit deterioration experienced since origination is more than insignificant, the extent of credit deterioration is evaluated. All re-performing/modified loan (“RPL”) pools purchased after December 31, 2019 are determined to have been acquired with evidence of more than insignificant credit deterioration since origination and are classified as PCD assets. RPLs are pools of residential mortgage loans acquired at a discount or premium which have both credit and non-credit components. For PCD mortgage loans, the allowance for credit losses is determined using a similar methodology described above, except the loss-rate is determined at the pool level instead of the individual loan level. The initial allowance for credit losses, determined on a collective basis, is then allocated to the individual loans. The initial amortized cost of the loan is grossed-up to reflect the sum of the loan’s purchase price and allowance for credit losses. The difference between the grossed-up amortized cost basis and the par value of the loan is a non-credit discount or premium, which is accreted or amortized into net investment income over the remaining life of the loan. Any subsequent PCD mortgage loan allowance for credit losses is evaluated in a manner similar to the process described above for each of the three portfolio segments.Delinquency is defined consistent with industry practice, when mortgage loans are past due as follows: commercial and residential mortgage loans — 60 days; and agricultural mortgage loans — 90 days.Mortgage loans are placed in a nonaccrual status if there are concerns regarding collectability of future payments or the loan is past due, unless the past due loan is well collateralized.

Derivatives, Policy [Policy Text Block]

Types of Derivative Instruments and Derivative Strategies

The Company maintains an overall risk management strategy that incorporates the use of derivative instruments to minimize its exposure to various market risks. Commonly used derivative instruments include, but are not necessarily limited to:

•Interest rate derivatives: swaps, floors, caps, swaptions and forwards;

•Foreign currency exchange rate derivatives: forwards and swaps;

•Equity market derivatives: options, total return swaps and hybrid options; and

•Credit derivatives: single and index reference credit default swaps and swaptions.

Counterparty Credit RiskGenerally, the credit exposure is the fair value at the reporting date less any collateral received from the counterparty.

Income Tax, Policy [Policy Text Block]

The effects of income taxes on amounts recorded to AOCI are also recognized in AOCI. These income tax effects are released from AOCI when the related activity is reclassified into results from operations.