Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The Consolidated Financial Statements include the accounts of Cigna Corporation and its consolidated subsidiaries. Intercompany transactions and accounts have been eliminated in consolidation. These Consolidated Financial Statements were prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”).

Amounts recorded in the Consolidated Financial Statements necessarily reflect management’s estimates and assumptions about medical costs, investment and receivable valuations, interest rates and other factors. Significant estimates are discussed throughout these Notes; however, actual results could differ from those estimates. The impact of a change in estimate is generally included in earnings in the period of adjustment.

Recent Accounting Pronouncements, Recently Adopted Accounting Guidance and Accounting Guidance Not Yet Adopted

Recently Adopted Accounting Guidance

The Company adopted Accounting Standards Update (“ASU”) No. 2016-13, Measurement of Credit Losses on Financial Instruments, and its related amendments, as of January 1, 2020, using the modified retrospective transition method. The new standard requires the use of a current expected credit loss impairment model to develop and recognize credit losses for financial instruments at amortized cost when the asset is first originated or acquired, and each subsequent reporting period. The new standard also eliminates the concept

of other-than-temporary impairments and changes the criteria for impairment of available-for-sale debt securities. A cumulative effect adjustment of $30 million after-tax was recorded as a reduction to retained earnings as of January 1, 2020, reflecting an additional allowance for future expected credit losses required under the new model, primarily related to reinsurance recoverables. Subsequent changes in the allowance are reported in current period earnings. See additional information regarding the Company’s accounting policy for establishing the allowance for credit losses in Accounts Receivable, Net (Note 4), Reinsurance (Note 10) and Investments (Note 11).

The Company adopted ASU 2017-04, Simplifying the Test for Goodwill Impairment, as of January 1, 2020, on a prospective basis. The new standard eliminates the need to determine the fair value of individual assets and liabilities of a reporting unit to measure a goodwill impairment. There was no impact of adopting this new standard to the Company’s financial statements because our quarterly qualitative assessments did not result in a triggering event for impairment of goodwill, and the results of our annual quantitative evaluation performed in the third quarter of 2020 indicated that the estimated fair value of each of our reporting units exceeded their carrying values by significant margins.

Accounting Guidance Not Yet Adopted

Facilitation of the Effects of Reference Rate Reform on Financial Reporting (ASU 2020-04)

•Optional, effective upon issuance (March 12, 2020) through December 31, 2022.

•Provides temporary optional relief to ease the potential burden of accounting for reference rate reform under existing GAAP. Amendments are elective and apply to all entities that have contracts, hedging relationships and other transactions that reference interbank offered rates, including LIBOR, expected to be discontinued for new contracts by December 31, 2021.

•Permits optional expedients and exceptions to simplify the accounting for contract modifications, hedging arrangements and held-to-maturity investments, when certain changes are made to a contract or instrument to facilitate reference rate reform.

•An entity may elect to apply the amendments, by topic or subsection, at any point prospectively through December 31, 2022. When elected, the optional expedients must be applied consistently for all eligible contracts or transactions.

To date, the Company has identified minimal exposure to LIBOR and does not anticipate that LIBOR’s phase-out will have a material impact on its operations or financial results.

Targeted Improvements to the Accounting for Long-Duration Contracts (ASU 2018-12)

•Effective date of January 1, 2023 for Cigna (early adoption permitted) and requires the following key provisions (for insurance entities that issue long-duration contracts)

•Changes to the measurement of the future policy benefits liability for traditional and limited-pay insurance contracts:

•Assumptions used to measure cash flows (such as mortality, morbidity and lapse assumptions) to be updated at least annually with the effect of changes in those assumptions remeasured retrospectively and reflected in current period net income.

•Discount rate assumptions to be updated quarterly based on an upper-medium grade fixed-income instrument yield that maximizes the use of observable market inputs, with any changes reflected in other comprehensive income.

•Deferred policy acquisition costs ("DAC") related to long-duration insurance contracts to be amortized on a constant-level basis over the expected term of the related contracts. Other related deferred or capitalized balances (such as unearned revenue liability and value of business acquired) may use this simplified amortization method.

•Market risk benefits (defined as protecting the contractholder from other-than-nominal capital market risk and exposing the insurer to that risk) to be measured at fair value, with changes in fair value recognized in net income each period, except for the effect of changes in the insurance entity’s credit risk to be recognized in other comprehensive income.

•Additional disclosures, including disaggregated rollforwards for the liability for future policy benefits, market risk benefits, separate account liabilities and deferred acquisition costs, as well as information about significant inputs, judgments, assumptions and methods used in measurement.

•Transition methods at adoption vary:

•Changes to the liability for future policy benefits to use a modified retrospective approach applied to all outstanding contracts on the basis of their existing carrying amounts as of the beginning of the earliest period presented, with an option to elect a full retrospective transition under certain criteria. Remeasuring the future policy benefits liability for the discount rate to be recorded through accumulated other comprehensive income at transition.

•DAC to follow the transition method used for future policyholder benefits.

•Market risk benefits to be transitioned retrospectively and measured at fair value at the beginning of the earliest period presented. The difference between this fair value and carrying value to be recognized in the opening balance of retained earnings, excluding the effect of credit risk changes that are to be recognized in accumulated other comprehensive income.

Expected effects:

•The new guidance will apply to our long-duration insurance products predominantly within the International Markets and Other segments.

•The Company will adopt the standard on January 1, 2023, using the modified retrospective transition method for changes to the liability for future policy benefits and DAC.

•The Company has developed a cross-functional implementation project plan and expects to have significant changes to our processes, systems, controls and financial results and disclosures.

•Although we continue to evaluate the new requirements of the standard and model their impacts across various products, we are unable to project or estimate the magnitude or frequency of expected changes to our financial results. However, it is possible that our income recognition pattern could change for several reasons:

•Applying periodic assumption updates, versus the current locked-in model, may change our timing of profit or loss recognition.

•DAC amortization will be on a constant level basis over the expected term of the related contracts, and no longer tied to the emergence of profit on such contracts.

•Features, such as the Company’s GMDB product, that provide market-risk benefits are not currently measured at fair value, so these liabilities and related reinsurance recoverables will become subject to market sensitivity, notably to interest rates.

•While not yet quantified, the cumulative effect of implementing this guidance may be material to the Company’s beginning shareholders' equity balance upon adoption.

•The Company continues to monitor developing implementation guidance, particularly with respect to reinsured blocks of business.

Cash and Cash Equivalents

Cash and cash equivalents are carried at cost that approximates fair value. Cash equivalents consist of short-term investments with maturities of three months or less from the time of purchase. The Company reclassifies cash overdraft positions to liabilities when the legal right of offset does not exist.

Inventories

Inventories consist of prescription drugs and medical supplies and are stated at the lower of first-in-first-out cost or net realizable value.

Deferred Policy Acquisition Costs

Costs eligible for deferral include incremental, direct costs of acquiring new or renewal insurance and investment contracts and other costs directly related to successful contract acquisition. Examples of deferrable costs include commissions, sales compensation and benefits, policy issuance and underwriting costs. The Company records acquisition costs differently depending on the product line. Acquisition costs for:

•Supplemental health, life and accident insurance products (primarily individual products) that comprise the majority of the Company’s deferred policy acquisition costs and group health and accident insurance products are deferred and amortized, generally in proportion to the ratio of periodic revenue to the estimated total revenues over the contract periods.

•Universal life products are deferred and amortized in proportion to the present value of total estimated gross profits over the expected lives of the contracts.

•Other products are expensed as incurred.

Deferred policy acquisition costs also include the value of business acquired (“VOBA”) for certain acquisitions with material long-duration insurance contracts. The Company recorded amortization of deferred policy acquisition costs of $502 million in 2020, $483 million in 2019 and $406 million in 2018 primarily in Selling, general and administrative expenses.

Each year, deferred policy acquisition costs are tested for recoverability. For universal life and other individual products, management estimates the present value of future revenues less expected payments. For group health and accident insurance products, management estimates the sum of unearned premiums and anticipated net investment income less future expected claims and related costs. If management’s estimates of these sums are less than the deferred costs, the Company reduces deferred policy acquisition costs and records an additional expense.

Other Assets (Current and Non-Current)

Other current assets consist primarily of prepaid expenses, accrued investment income and the current portion of reinsurance recoverables. Other non-current assets consist primarily of GMIB assets, operating lease right-of-use assets and various other insurance-related assets. See Note 10 for the Company’s accounting policy for GMIB assets and Note 18 for the Company's accounting policy related to leases. Additionally, other non-current assets include the carrying value of our equity-method investments in joint ventures in China, India, the U.S. and other foreign jurisdictions.

Assets and Liabilities of Business Held for Sale

The Company classifies assets and liabilities as held for sale (“disposal group”) when management commits to a plan to sell the disposal group, the sale is probable within one year and the disposal group is available for immediate sale in its present condition. The Company considers various factors, particularly whether actions required to complete the plan indicate it is unlikely that significant changes to the plan will be made or the plan will be withdrawn. Assets held for sale are measured at the lower of carrying value or fair value less costs to sell. Any loss resulting from the measurement is recognized in the period the held for sale criteria are met. Conversely, gains are not recognized until the date of the sale. When the disposal group is classified as held for sale, depreciation and amortization ceases and the Company tests the assets for impairment.In December 2019, Cigna entered into a definitive agreement to sell this business and since the sale was expected to close in the fourth quarter of 2020 following applicable regulatory approvals and other customary closing conditions, the Company aggregated and classified the assets and liabilities directly associated with the pending sale of its Group Disability and Life business as held for sale and has reported them separately on our Consolidated Balance Sheet as of December 31, 2019.

Redeemable Noncontrolling Interest

Redeemable noncontrolling interest on our Consolidated Balance Sheets represents the noncontrolling shareholders preferred and common stock interests of the Company's consolidated less than fully owned subsidiaries. Those shareholders may choose to require the Company to purchase their redeemable noncontrolling interest. We also have the right to require those shareholders to sell their redeemable noncontrolling interest to us. The redeemable noncontrolling interest was recorded at fair value as of the date of purchase. When the estimated redemption value for a redeemable noncontrolling interest exceeds its carrying value, an adjustment to increase the redeemable noncontrolling interest is recorded with an offsetting reduction to retained earnings or additional paid-in capital in the absence of retained earnings. When an adjustment is made to the carrying value of the redeemable noncontrolling interest, the calculation of shareholders’ net income per share will be adjusted if the redemption value exceeds fair value.

Accrued Expenses and Other Current and Non-Current Liabilities

Accrued expenses (current) primarily includes financial and performance guarantee liabilities under pharmacy contracts (see section I), management compensation and various insurance-related liabilities, including experience-rated refunds, reinsurance contracts and the risk adjustment and minimum medical loss ratio rebate accruals under The Patient Protection and Affordable Care Act (the “ACA”). Other non-current liabilities include obligations for pension (see Note 15), GMIB contract liabilities (see Note 10), lease liabilities (see Note 18) and self-insured exposures not expected to be settled within one year.

The Company accrues for legal and regulatory matters when a loss contingency is both probable and estimable. The estimated loss is generally recorded in Selling, general and administrative expenses and represents the Company’s best estimate of the loss contingency. If the loss estimate is a range, the Company accrues the minimum amount in the range if no amount is better than any other estimated amount in the range. Legal costs to defend the Company’s litigation and arbitration matters are expensed as incurred in cases that the Company cannot reasonably estimate the ultimate cost to defend. If the Company can reasonably estimate the cost to defend, a liability for these costs is accrued when the claim is reported. Litigation and legal or regulatory matters that the Company has identified with a reasonable possibility of material loss are described in Note 21.

Translation of Foreign Currencies

The Company generally conducts its international business through foreign operating entities that maintain assets and liabilities in local currencies that are their functional currencies. The Company uses exchange rates as of the balance sheet date to translate assets and liabilities into U.S. dollars. Translation gains or losses on functional currencies, net of applicable taxes, are recorded in Accumulated other comprehensive income (loss). The Company uses average monthly exchange rates during the year to translate revenues and expenses into U.S. dollars.

Revenues and Costs

Pharmacy revenues are primarily derived from providing pharmacy benefit management services to clients and customers. Pharmacy revenues are recognized when control of the promised goods or services is transferred to clients and customers, in an amount that reflects the consideration the Company expects to receive for those goods or services.

The Company provides or makes available various services supporting benefit management and claims administration and is generally obligated to provide prescription drugs to clients’ members using multiple distribution methods including retail networks, home delivery and specialty pharmacies. These goods and services are integrated into a single performance obligation to process claims, dispense prescription drugs and provide other services over the contract period (generally three years). This performance obligation is satisfied as the business stands ready to fulfill its obligation.

Revenues for dispensing prescription drugs through retail pharmacies are reported gross and consist of the prescription price (ingredient cost and dispensing fee) contracted with clients, including the customer copayment, and any associated fees for services because the Company acts as the principal in these arrangements. When a prescription is presented to a retail network pharmacy, the Company is solely responsible for customer eligibility, drug utilization review, drug-to-drug interaction review, any required clinical intervention, plan provision information, payment to the pharmacy and client billing. These revenues are recognized based on the full prescription price when the pharmacy claim is processed and approved for payment. The Company also provides benefit design and formulary consultation services to clients and negotiates separate contractual relationships with clients and network pharmacies. These factors indicate that the Company has control over these transactions until the prescription is processed. Revenues are billed, due and recognized at contract rates either on a periodic basis or as services are provided (such as based on volume of claims processed). This recognition pattern aligns with the benefits from services provided.

Home delivery and specialty pharmacy revenues are due and recognized as each prescription is shipped, net of reserves for discounts and contractual allowances estimated based on historical experience. Any differences between estimates and actual collections are reflected in operations when payments are received. Historically, adjustments to original estimates and returns have not been material. The Company has elected the practical expedient to account for shipping and handling as a fulfillment activity.

We may also provide certain financial and performance guarantees, including a minimum level of discounts a client may receive, generic utilization rates and various service levels. Clients may be entitled to receive compensation if we fail to meet the guarantees. Actual performance is compared to the contractual guarantee for each measure throughout the period and the Company defers revenue for any estimated payouts within Accrued expenses and other liabilities (current). These estimates are adjusted at the end of the guarantee period. Historically, adjustments to original estimates have not been material. The performance guarantee liability was $1.1 billion as of December 31, 2020 and $1.0 billion as of December 31, 2019.

The Company administers programs through which we may receive rebates and other vendor consideration from pharmaceutical manufacturers. The amounts of such rebates or other vendor consideration shared with pharmacy benefit management services clients vary based on the contractual arrangement with the client and in some cases the type of consideration received from the pharmaceutical manufacturer. Rebates and other vendor consideration payable to pharmacy benefit management services clients are recorded as a reduction of Pharmacy revenues. Estimated amounts payable to clients are based on contractual sharing arrangements between the Company and the client and these amounts are adjusted when amounts are collected from pharmaceutical manufacturers in accordance with the contractual arrangement between the Company and the client. Historically, these adjustments have not been material.

In certain retail, home delivery and specialty transactions certain amounts may be collected from third-party payors. These are billed and collected subject to normal account receivable collections procedures.

Other pharmacy service revenues are earned by distributing specialty pharmaceuticals and medical supplies to providers, clinics and hospitals and services to specialty pharmacy manufacturers. These revenues are recognized as prescriptions and supplies are shipped and services are provided.

Pharmacy costs. Pharmacy costs include the cost of prescriptions sold, network pharmacy claim costs and copayments. Also included are direct costs of dispensing prescriptions including supplies, shipping and handling and direct costs associated with clinical programs, such as drug utilization management and medication adherence counseling. Home delivery and specialty pharmacy costs are recognized when the drug is shipped and retail network costs are recognized when the drug is processed and approved for payment. Rebates and other vendor consideration received when providing pharmacy benefit management services are recorded as a reduction of pharmacy costs. Rebates are recognized as prescriptions are shipped or processed and approved for payment. Historically, the effect of adjustments resulting from the reconciliation of rebates recognized to the amounts billed and collected has not been material. The Company maintains reimbursement guarantees with certain retail network pharmacies. For each such guarantee, the Company records a pharmacy and other service costs payable or prepaid asset for applicable retail network claims based on our actual performance throughout the period against the contractual reimbursement rate. The Company’s contracts with certain retail pharmacies give the Company the right to adjust reimbursement rates during the annual guarantee period.

Other. Incremental costs of obtaining service and pharmacy contracts for short-term arrangements are expensed as incurred.

J.Premiums and Related Expenses

Premiums for group life, accident and health insurance and managed care coverages are recognized as revenue on a pro rata basis over the contract period. Benefits and expenses are recognized when incurred and, for our U.S. Medical insured business, are presented net of pharmaceutical manufacturer rebates. For experience-rated contracts, premium revenue includes an adjustment for experience-rated refunds based on contract terms and calculated using the customer’s experience (including estimates of incurred but not reported claims).

Premium revenue also includes an adjustment to reflect the estimated effect of rebates due to customers under the commercial minimum medical loss ratio provisions of the ACA. These rebates are settled in the subsequent calendar year.

Premiums received for the Company’s Medicare Advantage plans and Medicare Part D products from the Centers for Medicare and Medicaid Services (“CMS”) and customers are recognized as revenue ratably over the contract period. CMS provides risk-adjusted premium payments for Medicare Advantage Plans and Medicare Part D products based on our customer demographics and wellness. The Company recognizes periodic changes to risk-adjusted premiums as revenue when the amounts are determinable and collection is reasonably assured. Additionally, Medicare Part D premiums include payments from CMS for risk-sharing adjustments. These

adjustments are estimated quarterly based on claim experience by comparing actual incurred drug benefit costs to estimated costs submitted in original contracts. These adjustments may result in more or less revenue from CMS. Final revenue adjustments are determined and settled with CMS in the year following the contract year. Premium revenue may also include an adjustment to reflect the estimated effect of rebates due to CMS under the Medicare Advantage and Medicare Part D minimum medical loss ratio provisions of the ACA.

The ACA prescribed three programs to mitigate the risk for participating health insurance companies selling coverage on the public exchanges: risk adjustment, reinsurance and risk corridor. The reinsurance and ACA risk corridor programs expired at the end of 2016, while the permanent risk-adjustment program continues.

The risk-adjustment program reallocates funds from insurers with lower risk populations to insurers with higher risk populations based on the relative risk scores of participants in non-grandfathered plans in the individual and small group markets, both on and off the exchanges. We estimate our receivable or payable based on the risk of our customers compared to the risk of other customers in the same state and market, considering data obtained from industry studies and the United States Department of Health and Human Services (“HHS”). Receivables or payables are recorded as adjustments to premium revenue based on our year-to-date experience when the amounts are reasonably estimable and collection is reasonably assured. Final revenue adjustments are determined by HHS in the year following the policy year.

Premiums for individual life, accident and supplemental health insurance and annuity products, excluding universal life and investment-related products, are recognized as revenue when due. Benefits and expenses are matched with premiums.

Revenue for universal life products is recognized as follows:

•Investment income on assets supporting universal life products is recognized in Net investment income as earned.

•Charges for mortality, administration and policy surrender are recognized in premiums as earned. Administrative fees are considered earned when services are provided.

Benefits and expenses for universal life products consist of benefit claims in excess of policyholder account balances and income earned by policyholders. Expenses are recognized when claims are incurred, and income is credited to policyholders in accordance with contract provisions.

The unrecognized portion of premiums received is recorded as unearned premiums included in insurance and contractholder liabilities (see Note 9 for further information).

K.Fees and Related Expenses

The majority of the Company’s service fees are derived from administrative services only (“ASO”) arrangements, fee-for-service clinical solutions and health benefit management services.

ASO arrangements allow plan sponsors to self-fund claims and assume the risk of medical or other benefit costs. Most of the Company’s ASO arrangements are for medical and specialty services, including pharmacy benefits. Generally, the Company’s ASO arrangements are short-term. Contract modifications typically occur on renewal and are prospective in nature.

In return for fees from these clients, the Company provides access to our participating provider networks and other services supporting benefit management, including claims administration, behavioral health services, disease management, utilization management and cost containment programs. In general, the Company considers these services to be a combined performance obligation to provide cost effective administration of plan benefits over the contract period. Fees are billed, due and recognized monthly at contracted rates based on current membership or utilization. This recognition pattern aligns with the benefits from services provided to clients. These revenues are reported in Fees and other revenues in the Consolidated Statements of Income.

The Company may also provide performance guarantees that provide potential refunds to clients if certain service standards, clinical outcomes or financial metrics are not met. If these standards, outcomes and metrics are not met, the Company may be financially at risk up to a stated percentage of the contracted fee or a stated dollar amount. The Company defers revenue by recording a liability for estimated payouts associated with these guarantees within Accrued expenses and other liabilities. The amount of revenue deferred is estimated for each type of guarantee using either a most likely amount or expected value method depending on the nature of the guarantee and the information available to estimate refunds. Estimates are refined each reporting period as additional information on the Company’s performance becomes available and upon final reconciliation and settlement at the end of the guarantee period. Amounts accrued and paid for these performance guarantees during the reporting periods were not material.

Rebates from pharmaceutical manufacturers for ASO client purchases at retail pharmacies, net of amounts payable to ASO clients, were considered compensation for use of the manufacturer’s products and recorded in Fees and other revenues prior to transitioning U.S. Commercial customers to Express Scripts’ retail pharmacy network in the third quarter of 2019. After this transition, these rebates are reflected as a reduction to pharmacy costs (See “Pharmacy Costs” above).

Expenses associated with administrative programs and services are recognized as incurred in Selling, general and administrative expenses.

The Company also earns revenue, as part of its integrated pharmacy benefits performance obligation, by offering fee-for-service clinical solutions to our clients, such as drug utilization management and medication adherence counseling. These clinical programs help clients to drive better health outcomes at a lower cost by identifying and addressing potentially unsafe or wasteful prescribing, dispensing and utilization of prescription drugs and communicating with, or supporting communications with physicians, pharmacies and patients. Fees are billed, due and recognized at contracted rates either on a periodic basis or as services are provided. This recognition pattern aligns with the benefits from services provided. These revenues are reported in Fees and other revenues in the Consolidated Statements of Income. Direct costs associated with these programs are recognized in Pharmacy and other service costs, and other related expenses are recorded as incurred in Selling, general and administrative expenses.

The Company also earns fees by providing health benefit management solutions that drive cost reductions and improve quality outcomes. Clients are primarily sponsors of health benefit plans and fees may be stated as a per-member-per-month fee or as a per-claim fee. The Company considers the services to be a single performance obligation to stand ready to provide utilization management services over the contract period (generally three years). In certain arrangements, the Company assumes the financial obligation for third-party provider costs for medical services provided to the health plan’s customers. Fees are recorded gross in Fees and other revenues in the Consolidated Statements of Income because the Company is acting as a principal in arranging for and controlling the services provided by third-party network providers. Contractual fees vary based on enrollment and provider costs and are billed, due and recognized monthly. Direct costs associated with these programs are recognized in Pharmacy and other service costs, and other related expenses are recorded in Selling, general and administrative expenses as incurred.

Certain health benefit management contracts require the Company to share the results of medical cost experience that differ from specified targets. This variable consideration is estimated at contract inception and adjusted through the contract period. The estimated profits and costs are recognized net in Fees and other revenues.

Allowance for Credit Losses

The Company's accounts receivable balances primarily include amounts due from clients, third-party payors, customers and pharmaceutical manufacturers, and are presented net of allowances. The Company's adoption of ASU 2016-13, Measurement of Credit Losses on Financial Instruments (ASU 2016-13), as of January 1, 2020 did not have a material impact on our accounts receivable credit loss allowance, as there were no substantive changes to our methodology for this class of assets. The allowance for expected credit losses for current accounts receivable is based primarily on past collections experience relative to the length of time receivables are past due; however, when available evidence reasonably supports an assumption that counterparty credit risk over the expected payment period will differ from current and historical payment collections, a forecasting adjustment is reflected in the allowance for expected credit losses.

All other (non-credit) allowances are based on the current status of each customer's receivable balance as well as current economic and market conditions and a variety of other factors, including the length of time the receivables are past due, the financial health of customers and our past experience. We bill pharmaceutical manufacturers based on management's interpretation of contractual terms and estimate a contractual allowance based on the best information available at the time a claim is processed. Contractual allowances for certain rebates receivable from pharmaceutical manufacturers are determined by reviewing payment experience and specific known items that could be adjusted under contract terms. The Company's estimation process for contractual allowances for pharmaceutical manufacturer receivables generally results in an allowance for balances outstanding greater than 90 days. Contractual allowances for certain receivables from third-party payors are based on their contractual terms and are estimates based on the Company's best information available at the time revenue is recognized.

Receivables and any associated allowance are written off only when all collection attempts have failed and such amounts are determined unrecoverable. We regularly review the adequacy of these allowances based on a variety of factors, including age of the outstanding receivable and collection history. When circumstances related to specific collection patterns change, estimates of the recoverability of receivables are adjusted.

Earnings Per Share

The Company computes basic earnings per share using the weighted-average number of unrestricted common and deferred shares outstanding. Diluted earnings per share also includes the dilutive effect of outstanding employee stock options and restricted stock using the treasury stock method and the effect of strategic performance shares.

Contractholder Deposit Funds

Accounting Policy - Contractholder Deposit Funds. Liabilities for contractholder deposit funds primarily include deposits received from customers for investment-related and universal life products and investment earnings on their fund balances. These liabilities are adjusted to reflect administrative charges and, for universal life fund balances, mortality charges. In addition, this caption includes: 1) premium stabilization reserves under group health insurance contracts representing experience refunds left with the Company to pay future premiums; 2) deposit administration funds used to fund non-pension retiree insurance programs; 3) retained asset accounts and 4) annuities or supplementary contracts without significant life contingencies. Interest credited on these funds is accrued ratably over the contract period.

Future Policy Benefits

Accounting Policy - Future Policy Benefits. Future policy benefits represent the present value of estimated future obligations under long-term life and supplemental health insurance policies and annuity products currently in force. These obligations are estimated using actuarial methods and consist primarily of reserves for annuity contracts, life insurance benefits, GMDB contracts (GMDB contracts are fully reinsured, see Note 10 for additional information) and certain health, life and accident insurance products of our International Markets segment.

Obligations for annuities represent specified periodic benefits to be paid to an individual or groups of individuals over their remaining lives. Obligations for life insurance policies and GMDB contracts represent benefits expected to be paid to policyholders, net of future premiums expected to be received. Management estimates these obligations based on assumptions as to premiums, interest rates, mortality or morbidity, future claim adjudication expenses and surrenders, allowing for adverse deviation as appropriate. Mortality, morbidity and surrender assumptions are based on the Company’s own experience and published actuarial tables. Interest rate assumptions are based on management’s judgment considering the Company’s experience and future expectations, and range from 1% to 9%. Obligations for the direct and assumed run-off settlement annuity business include adjustments for realized and unrealized investment returns consistent with GAAP when a premium deficiency exists. As of December 31, 2020, approximately 20% of the liability for future policy benefits was supported by assets held in trust for the benefit of the ceding company under reinsurance agreements.

Unearned Premium

Accounting Policy - Unearned Premium. The unrecognized portion of premiums received is recorded as unearned premiums included in insurance and contractholder liabilities.

Unpaid Claims and Claims Expenses

Unpaid Claims and Claim Expenses – U.S. MedicalThis liability reflects estimates of the ultimate cost of claims that have been incurred but not reported, including expected development on reported claims, those that have been reported but not yet paid (reported claims in process) and other medical care expenses and services payable that are primarily comprised of accruals for incentives and other amounts payable to health care professionals and facilities.

Accounting policy. The Company uses actuarial principles and assumptions that are consistently applied each reporting period and recognizes the actuarial best estimate of the ultimate liability along with a margin for adverse deviation. This approach is consistent with actuarial standards of practice that the liabilities be adequate under moderately adverse conditions.

The Company compares key assumptions used to establish the medical costs payable to actual experience for each reporting period. The unpaid claims liability is adjusted through current period shareholders’ net income when actual experience differs from these assumptions. Additionally, the Company evaluates expected future developments and emerging trends that may impact key assumptions. The process used to determine this liability requires the Company to make critical accounting estimates that involve considerable judgment, reflecting the variability inherent in forecasting future claim payments. These estimates are highly sensitive to changes in the Company’s key assumptions, specifically completion factors and medical cost trend.

The liability is primarily calculated using “completion factors” developed by comparing the claim incurral date to the date claims were paid. Completion factors are impacted by several key items including changes in: 1) electronic (auto-adjudication) versus manual claim processing; 2) frequency and timeliness of provider claims submissions; 3) membership and 4) the mix of products. The Company uses historical completion factors combined with an analysis of current trends and operational factors to develop current estimates of completion factors. The Company estimates the liability for claims incurred in each month by applying the current estimates of completion factors to the current paid claims data. This approach implicitly assumes that historical completion rates will be a useful indicator for the current period.

The Company relies more heavily on medical cost trend analysis that reflects expected claim payment patterns and other relevant operational considerations for more recent months. Medical cost trend is primarily impacted by medical service utilization and unit costs that are affected by changes in the level and mix of health benefits offered, including inpatient, outpatient and pharmacy, the impact of copays and deductibles, changes in provider practices and changes in consumer demographics and consumption behavior.

There is no single or common claim frequency metric used in the health care industry. The Company believes a relevant metric for its health insurance business is the number of customers for whom an insured medical claim was paid. Customers for whom no insured medical claim was paid are excluded from the calculation. Claims that did not result in a liability are not included in the frequency metric.Accounting policy. Liabilities for unpaid claims and claim expenses are established by book of business within Group Disability and Other and International Markets. Unpaid claims and claim expenses within the Group Disability and Other and International Markets segments consist of (1) case or claims reserves for reported claims that are unpaid as of the balance sheet date; (2) incurred but not reported reserves for claims when the insured event has occurred but has not been reported to the Company and (3) loss adjustment expense reserves for the expected costs of settling these claims. The Company consistently estimates incurred but not yet reported losses using actuarial principles and assumptions based on historical and projected claim incidence patterns, claim size and the expected payment period. The Company recognizes the actuarial best estimate of the ultimate liability within a level of confidence, consistent with actuarial standards of practice that the liabilities be adequate under moderately adverse conditions. The Company immediately records an adjustment in Medical costs and other benefit expenses when estimates of these liabilities change.

See Note 5 for a discussion of the divestiture of the Group Disability and Life business on December 31, 2020. For the year ended December 31, 2019, liabilities for unpaid claims and claim expenses within the Group Disability and Life business reflect the following primary products: long-term and short-term disability, life insurance and accident coverages and the majority of the Company’s liability for disability claims consisted of “disabled life reserves”, measured as the present value of estimated future benefit payments, including expected development, for each reported claim that is currently receiving benefit payments over the expected disability period or pending a decision on eligibility for benefits. The Company projected the expected disability period by using historical resolution rates combined with an analysis of current trends and operational factors to develop current estimates of resolution rates. Expected claim resolution rates may vary based upon the Company’s experience for the anticipated disability period, the covered benefit period, the cause of disability, the benefit design and the claimant’s age, gender and income level. The gross monthly benefit is reduced (offset) by disability income received under other benefit programs, most commonly Social Security Disability Income, workers’ compensation, statutory disability or other group benefit plans. The Company estimated the probability and amount of future offset awards and lapses based on the Company’s experience for certain offsets not yet finalized.

The Company also establishes a liability for the expected present value of future benefit payments for known claims that have recently been resolved but may reopen in the future, based on Company experience. Prior to a claim becoming known, the Company establishes a liability for incurred but not reported claims using standard actuarial techniques and calculations based on completion factors and loss ratio assumptions using the Company’s experience combined with an analysis of current trends and operational factors. Completion factors are impacted by several key items including changes in claim inventory levels, claim payment patterns, changes in business volume and other factors. Loss ratio assumptions are developed using historical Company experience, adjusted prospectively for expected changes in the underlying business including rate actions, persistency and inforce growth.

The Company discounts certain liabilities, predominantly long-term disability liabilities, because benefits payments are made over extended periods. Discount rate assumptions for these liabilities are based on projected investment returns for the supporting asset portfolios. Following the sale of the Company's Group Disability and Life business (see Note 5 for further information), the majority of the liability for unpaid claims and claim expenses relates to products sold in the International Markets segment. Prior to the sale, the majority of the liability for unpaid claims and claim expenses related to disability claims with long-tailed payouts. The rollforward above reflects activity inclusive of these reserves, which were sold on December 31, 2020. Interest earned on assets backing these liabilities is an integral part of pricing and reserving. Therefore, interest accreted on prior year balances is shown as a separate component of prior year incurred claims and reported in Medical costs and other benefit expenses in the Consolidated Statements of Income. This interest is calculated by applying the average discount rate used in determining the liability balance to the average liability balance over the period. The remaining prior year incurred claims amount primarily reflects updates to the Company’s liability estimates and variances between actual experience during the period relative to the assumptions and expectations reflected in determining the liability. Assumptions reflect the Company’s expectations over the life of the book of business and will vary from actual experience in any period, both favorably and unfavorably, with variation in resolution rates being the most significant driver for the long-term disability business.

Reinsurance

Reinsurance and other amounts recoverable reflect amounts due from reinsurers and policyholders to cover incurred but not reported and pending claims of certain business for which the Company administers the plan benefits without any right of offset.The Company’s insurance subsidiaries enter into agreements with other insurance companies to assume and cede reinsurance. Reinsurance is ceded primarily in acquisition and disposition transactions when the underwriting company is not being acquired. Reinsurance is also used to limit losses from large exposures and to permit recovery of a portion of direct or assumed losses. Reinsurance does not relieve the originating insurer of liability. Therefore, reinsured liabilities must continue to be reported along with the related reinsurance recoverables. The Company regularly evaluates the financial condition of its reinsurers and monitors concentrations of its credit risk.Accounting policy. Reinsurance recoverables represent amounts due from reinsurers for both paid and unpaid claims of the Company’s insurance businesses. Most reinsurance recoverables are classified as non-current assets. The current portion of reinsurance recoverables is reported in Other current assets and consists primarily of recoverables on paid claims expected to be settled within one year. Reinsurance recoverables are presented net of allowances for uncollectible reinsurance that, effective with adopting ASU 2016-13 on January 1, 2020, consists primarily of an allowance for expected credit losses. $31 million was recorded as a cumulative effect adjustment to retained earnings at adoption. Estimates of the allowance for expected credit losses are based on internal and external data used to develop expected loss rates over the anticipated duration of the recoverable asset that vary by external credit rating and collateral level. The Company's allowance for credit losses on reinsurance recoverables was $32 million as of December 31, 2020, of which $31 million was recorded as a cumulative effect adjustment to retained earnings at adoption.

Collateral levels are defined internally based on the fair value of the collateral relative to the carrying amount of the reinsurance recoverable, the frequency at which collateral is required to be replenished and the potential for volatility in the collateral’s fair value.

The Company bears the risk of loss if its reinsurers and retrocessionaires do not meet or are unable to meet their reinsurance obligations to the Company. The Company reviews its reinsurance arrangements and establishes reserves against the recoverables, as further described above.

GMDB is accounted for as assumed and ceded reinsurance and GMIB assets and liabilities are reported as derivatives at fair value as discussed below. GMIB assets are reported in Other current assets and Other assets, and GMIB liabilities are reported in Accrued expenses and other liabilities and Other non-current liabilities.Accounting policy. The Company estimates the gross liability and reinsurance recoverable with an internal model based on the Company’s experience and future expectations over an extended period, consistent with the long-term nature of this product. As a result of the reinsurance transaction, reserve increases have a corresponding increase in the recorded reinsurance recoverable, provided the increased recoverable remains within the overall Berkshire limit (including the GMIB asset presented below).

Accounting policy. The Company reports GMIB liabilities and assets as derivatives at fair value because cash flows of these liabilities and assets are affected by equity markets and interest rates, but are without significant life insurance risk and are settled in lump sum payments. The Company receives and pays fees periodically based on either contractholders’ account values or deposits increased at a contractual rate. The Company will also pay and receive cash depending on changes in account values and interest rates when contractholders first elect to receive minimum income payments. Cash flows on these contracts are reported in operating activities.

Assumptions used in fair value measurement. GMIB assets and liabilities are established using capital market assumptions and assumptions related to future annuitant behavior (including mortality, lapse and annuity election rates). The Company classifies GMIB assets and liabilities in Level 3 of the fair value hierarchy described in Note 12 because assumptions related to future annuitant behavior are largely unobservable.

The only assumption expected to impact future shareholders’ net income is non-performance risk. The non-performance risk adjustment reflects a market participant’s view of nonpayment risk by adding an additional spread to the discount rate in the calculation of both (a) the GMIB liabilities to be paid by the Company, and (b) the GMIB assets to be paid by the reinsurers, after considering collateral.

Investments

Debt securities, commercial mortgage loans, derivative financial instruments and short-term investments with contractual maturities during the next twelve months are classified on the balance sheet as current investments, unless they are held as statutory deposits or restricted for other purposes and then they are classified in Long-term investments. Equity securities may include exchange traded funds that are used in our cash management strategy and are classified as current investments. All other investments are classified as Long-term investments.

Debt Securities

Accounting policy. Debt securities (including bonds, mortgage and other asset-backed securities and preferred stocks redeemable by the investor) are classified as available for sale and are carried at fair value with changes in fair value recorded either in Accumulated other comprehensive income (loss) within Shareholders’ equity or in credit loss expense based on fluctuations in the allowance for credit losses, as further discussed below. Net unrealized appreciation on debt securities supporting the Company’s run-off settlement annuity business is reported in Non-current insurance and contractholder liabilities rather than Accumulated other comprehensive income (loss). When the Company intends to sell or determines that it is more likely than not to be required to sell an impaired debt security, the excess of amortized cost over fair value is directly written down with a charge to Realized investment gains and losses. A portion of these investments are unconsolidated variable interest entities, see Note 13 for additional information.

As of January 1, 2020, the Company adopted ASU 2016-13 that included certain targeted improvements to the accounting for available-for-sale debt securities. The new guidance resulted in certain policy changes related to the process used by the Company to review declines in fair value from a security’s amortized cost basis to determine whether a credit loss exists. For example, the length of time that a debt security has been impaired is no longer a criterion for this review. In addition, under this new guidance, the Company recognizes an allowance for credit loss with a corresponding charge to credit loss expense, presented in Realized investment gains and losses in the Company’s income statement. Prior to this new guidance, the Company recorded a direct write-down of the instrument’s amortized cost basis. The allowance for credit loss represents the excess of amortized cost over the greater of its fair value or the net present value of the debt security's projected future cash flows (based on qualitative and quantitative factors, including the probability of default, and the estimated timing and amount of recovery). Each period, the allowance for credit loss is adjusted through credit loss expense.

The Company elected the expedient to not measure an allowance for credit losses for accrued interest receivables. Consistent with prior practice, when interest payments are delinquent based on contractual terms or when certain terms (interest rate or maturity date) of the investment have been restructured, accrued interest, reported in Other current assets, is written off through a charge to Net investment income, and interest income is recognized on a cash basis.

Debt securities are classified as either Current or Long-term investments based on their contractual maturities.

Review of declines in fair value. Management reviews impaired debt securities to determine whether a credit loss allowance is needed based on criteria that include:

•severity of decline;

•financial health and specific prospects of the issuer; and

•changes in the regulatory, economic or general market environment of the issuer’s industry or geographic region.

Equity Securities

Accounting policy. Changes in the fair values of equity securities that have a readily determinable fair value are reported in Net realized investment gains (losses). Equity securities without a readily determinable fair value are carried at cost minus impairment, if any, plus or minus changes resulting from observable price changes. Equity securities also include hybrid investments consisting of preferred stock with call features that are carried at fair value with changes in fair value reported in Net realized investment gains (losses) and dividends reported in Net investment income.

Equity securities with a readily determinable fair value consist primarily of mutual funds that invest in fixed income debt securities while those without a readily determinable fair value consist of private equity investments. The amount of impairments or value changes resulting from observable price changes on equity securities still held was not material as of December 31, 2020 or 2019.

Commercial Mortgage Loans

Accounting policy. Commercial mortgage loans are carried at unpaid principal balances. Beginning January 1, 2020 with the adoption of ASU 2016-13, unpaid principal balances are presented net of an allowance for expected credit losses. Changes in the allowance for expected credit losses are recognized as credit loss expense and presented in Realized investment gains and losses in the Company’s income statement. Each period, the Company establishes (or adjusts) its allowance for expected credit losses for commercial mortgage loans. The allowance for expected credit losses is based on a credit risk category that is assigned to each loan at origination using key credit quality indicators, including debt service coverage and loan-to-value ratios. Credit risk categories are updated as key credit quality indicators change. An expected loss rate, assigned based on the credit risk category, is applied to each loan's unpaid principal balance to develop an aggregate allowance for expected credit losses. Prior to adoption, impaired commercial mortgage loans were written down to the lower of unpaid principal or fair value of the underlying collateral when it became probable that the Company

would not collect all amounts due under its promissory note.

Commercial mortgage loans are considered impaired and written off against the allowance when it is probable that the Company will not collect all amounts due per the terms of the promissory note. The Company elected the expedient to not measure an allowance for credit losses for accrued interest receivables. Consistent with our prior practice, accrued interest, reported in Other current assets, is written off through a charge to Net investment income; interest income on impaired loans is only recognized when a payment is received.

In the event of a foreclosure, the allowance for credit losses is based on the excess of the carrying value of the mortgage loan over the fair value of its underlying collateral.

Mortgage loans held by the Company are made exclusively to commercial borrowers and are diversified by property type, location and borrower. Loans are generally issued at fixed rates of interest and are secured by high quality, primarily completed and substantially leased operating properties. Commercial mortgage loans are classified as either current or long-term investments based on their contractual maturities.

Credit quality. The Company regularly evaluates and monitors credit risk, beginning with the initial underwriting of a mortgage loan and continuing throughout the investment holding period. Mortgage origination professionals employ an internal credit quality rating system designed to evaluate the relative risk of the transaction at origination that is then updated each year as part of the annual portfolio loan review. The Company evaluates and monitors credit quality on a consistent and ongoing basis.

Quality ratings are based on our evaluation of a number of key inputs related to the loan, including real estate market-related factors such as rental rates and vacancies, and property-specific inputs such as growth rate assumptions and lease rollover statistics. However, the two most significant contributors to the credit quality rating are the debt service coverage and loan-to-value ratios. The debt service coverage ratio measures the amount of property cash flow available to meet annual interest and principal payments on debt, with a ratio below 1.0 indicating that there is not enough cash flow to cover the required loan payments. The loan-to-value ratio, commonly expressed as a percentage, compares the amount of the loan to the fair value of the underlying property collateralizing the loan.

The Company’s annual in-depth review of its commercial mortgage loan investments is the primary mechanism for identifying emerging risks in the portfolio. The Company’s investment professionals completed the annual in-depth review in the second quarter of 2020 that included an analysis of each underlying property’s most recent annual financial statements, rent rolls, operating plans, budgets, a physical inspection of the property and other pertinent factors. Based on historical results, current leases, lease expirations and rental conditions in each market, the Company estimated the current year and future stabilized property income and fair value for each loan.

The Company re-evaluates a loan’s credit quality between annual reviews if new property information is received or an event such as delinquency or a borrower’s request for restructure causes management to believe that the Company’s estimate of financial performance, fair value or the risk profile of the underlying property has been impacted.

Policy Loans

Accounting policy. Policy loans, primarily associated with our corporate-owned life insurance business, are carried at unpaid principal balances plus accumulated interest, the total of which approximates fair value. These loans are collateralized by life insurance policy cash values and therefore have minimal exposure to credit loss. Interest rates are reset annually based on a rolling average of benchmark interest rates.

Other Long-Term Investments

Accounting policy. Other long-term investments include investments in unconsolidated entities, including certain limited partnerships and limited liability companies holding real estate, securities or loans. These investments are carried at cost plus the Company's ownership percentage of reporting income or loss, based on the financial statements of the underlying investments that are generally reported at fair value. Income or loss from these investments is reported on a one quarter lag due to the timing of when financial information is received from the general partner or manager of the investments.

Other long-term investments also include investment real estate carried at depreciated cost less any impairment write-downs to fair value when cash flows indicate that the carrying value may not be recoverable. Depreciation is generally recorded using the straight-line method based on the estimated useful life of each asset. Investment real estate as of December 31, 2020 and 2019 is expected to be held longer than one year and may include real estate acquired through the foreclosure of commercial mortgage loans.

Additionally, statutory and other restricted deposits, healthcare related investment partnerships and foreign currency swaps carried at fair value are reported in the table below as Other. See discussion below for information on the Company’s accounting policies for derivative financial instruments.

Accounting policy. Security investments with maturities of greater than three months to one year from time of purchase are classified as short-term, available for sale and carried at fair value that approximates cost. Cash equivalents consist of short-term investments with maturities of three months or less from the time of purchase and are carried at cost that approximates fair value.

The Company’s derivative financial instruments are presented as follows: 

•Fair value hedges of the foreign exchange-related changes in fair values of certain foreign-denominated bonds: Swap fair values are reported in Long-term investments or Other non-current liabilities. Changes in fair values attributable to foreign exchange risk of the swap contracts and the hedged bonds are reported in Realized investment gains and losses. The portion of the swap contracts’ changes in fair value excluded from the assessment of hedge effectiveness is recorded in Other comprehensive income and recognized in Net investment income as swap coupon payments are accrued, offsetting the foreign-denominated coupons received on the designated bonds. Net cash flows are reported in Operating activities, while exchanges of notional principal amounts are reported in Investing activities.

•Net investment hedges of certain foreign subsidiaries that conduct their business principally in currencies other than the U.S. dollar: The fair values of the foreign currency swap and forward contracts are reported in Other assets or Other liabilities. The changes in fair values of these instruments are reported in Other comprehensive income, specifically in translation of foreign currencies. The portion of the change in fair values relating to foreign exchange spot rates will be recognized in earnings upon deconsolidation of the hedged foreign subsidiaries. The remaining changes in fair value of these instruments are excluded from our effectiveness assessment and recognized in interest expense when coupon payments are accrued or ratably

over the term of the instrument. The notional value of hedging instruments matches the hedged amount of subsidiary net assets. Cash flows relating to these contracts are reported in Investing activities.

•Economic hedges for derivatives not designated as accounting hedges: Fair values of forward contracts are reported in Current investments or Accrued expenses and other liabilities. The changes in fair values are reported in Realized investment gains and losses. Cash flows relating to these contracts are reported in Investing activities.

Accounting policy. When interest and principal payments on investments are current, the Company recognizes interest income when it is earned. The Company recognizes interest income on a cash basis when interest payments are delinquent based on contractual terms or when certain terms (interest rate or maturity date) of the investment have been restructured. For unconsolidated entities that are included in Other long-term investments, investment income is generally recognized according to the Company’s share of the reported income or loss on the underlying investments. Investment income attributed to the Company’s separate accounts is excluded from our earnings because associated gains and losses generally accrue directly to separate account policyholders.Accounting policy. Realized investment gains and losses are based on specifically identified assets and result from sales, investment asset write-downs, change in the fair value of certain derivatives and equity securities and changes in valuation reserves on commercial mortgage loans. Commencing January 1, 2020, realized gains and losses also include credit loss expense resulting from the impact of changes in the allowances for credit losses on debt securities and commercial mortgage loan investments under ASU 2016-13.

Derivative Financial Instruments

Derivative Financial InstrumentsThe Company uses derivative financial instruments to manage the characteristics of investment assets (such as duration, yield, currency and liquidity) to meet the varying demands of the related insurance and contract holder liabilities. The Company also uses derivative financial instruments to hedge the risk of changes in the net assets of certain of its foreign subsidiaries due to changes in foreign currency exchange rates. The Company has written and purchased GMIB reinsurance contracts in its run-off reinsurance business that are accounted for as freestanding derivatives as discussed in Note 10. Derivatives in the Company’s separate accounts

are excluded from the following discussion because associated gains and losses generally accrue directly to separate account policyholders.

Derivative instruments used by the Company typically include foreign currency swap contracts and foreign currency forward contracts. Foreign currency swap contracts periodically exchange cash flows between two currencies for principal and interest. Foreign currency forward contracts require the Company to purchase a foreign currency in exchange for the functional currency of its operating unit at a future date.

The Company manages the credit risk of these derivative instruments by diversifying its portfolio among approved dealers of high credit quality and through routine monitoring of credit risk exposures. Certain of the Company’s over-the-counter derivative instruments require either the Company or the counterparty to post collateral or demand immediate payment depending on the amount of the net liability position of the derivative instrument and predefined financial strength or credit rating thresholds. These collateral posting requirements vary by counterparty. The Company may incur a loss if dealers failed to perform under derivative contracts, however collateral has been posted by dealers to cover substantially all of the net fair values owed at December 31, 2020 and December 31, 2019. The fair value of collateral posted by the Company was not significant as of December 31, 2020 or December 31, 2019.

Accounting policy. Derivatives are recorded on our balance sheet at fair value and are classified as current or non-current according to their contractual maturities. Further information on our policies for determining fair value are discussed in Note 12. The Company applies hedge accounting when derivatives are designated, qualified and highly effective as hedges. Under hedge accounting, the changes in fair value of the derivative and the hedged risk are generally recognized together and offset each other when reported in Shareholders’ net income. Various qualitative or quantitative methods appropriate for each hedge are used to formally assess and document hedge effectiveness at inception and each period throughout the life of a hedge.

Fair Value Measurements

The Company carries certain financial instruments at fair value in the financial statements including debt securities, certain equity securities, short-term investments and derivatives. Other financial instruments are measured at fair value only under certain conditions, such as when impaired or when there are observable price changes for equity securities with no readily determinable fair value.

Fair value is defined as the price at which an asset could be exchanged in an orderly transaction between market participants at the balance sheet date. A liability’s fair value is defined as the amount that would be paid to transfer the liability to a market participant, not the amount that would be paid to settle the liability with the creditor.

The Company’s financial assets and liabilities carried at fair value have been classified based upon a hierarchy defined by GAAP. The hierarchy gives the highest ranking to fair values determined using unadjusted quoted prices in active markets for identical assets and liabilities (Level 1) and the lowest ranking to fair values determined using methodologies and models with unobservable inputs (Level 3). An asset’s or a liability’s classification is based on the lowest level of input that is significant to its measurement. For example, a financial asset or liability carried at fair value would be classified in Level 3 if unobservable inputs were significant to the instrument’s fair value, even though the measurement may be derived using inputs that are both observable (Levels 1 and 2) and unobservable (Level 3).

The Company estimates fair values using prices from third parties or internal pricing methods. Fair value estimates received from third-party pricing services are based on reported trade activity and quoted market prices when available, and other market information that a market participant would use to estimate fair value. The internal pricing methods are performed by the Company’s investment professionals and generally involve using discounted cash flow analyses, incorporating current market inputs for similar financial instruments with comparable terms and credit quality as well as other qualitative factors. In instances where there is little or no market activity for the same or similar instruments, fair value is estimated using methods, models and assumptions that the Company believes a hypothetical market participant would use to determine a current transaction price. These valuation techniques involve some level of estimation and judgment that becomes significant with increasingly complex instruments or pricing models.

The Company is responsible for determining fair value and for assigning the appropriate level within the fair value hierarchy based on the significance of unobservable inputs. The Company reviews methodologies, processes and controls of third-party pricing services and compares prices on a test basis to those obtained from other external pricing sources or internal estimates. The Company performs ongoing analyses of both prices received from third-party pricing services and those developed internally to determine that they represent appropriate estimates of fair value. The controls executed by the Company include evaluating changes in prices and monitoring for potentially stale valuations. The Company also performs sample testing of sales values to confirm the accuracy of prior fair value estimates. The minimal exceptions identified during these processes indicate that adjustments to prices are infrequent and do not significantly impact valuations. An annual due-diligence review of the most significant pricing service is conducted to review their processes, methodologies and controls. This review includes a walk-through of inputs for a sample of securities held across various asset types to validate the documented pricing process.

Level 1 Financial Assets

Inputs for instruments classified in Level 1 include unadjusted quoted prices for identical assets in active markets accessible at the measurement date. Active markets provide pricing data for trades occurring at least weekly and include exchanges and dealer markets.

Assets in Level 1 include actively-traded U.S. government bonds and exchange-listed equity securities. A relatively small portion of the Company’s investment assets are classified in this category given the narrow definition of Level 1 and the Company’s investment asset strategy to maximize investment returns.

Level 2 Financial Assets and Financial Liabilities

Inputs for instruments classified in Level 2 include quoted prices for similar assets or liabilities in active markets, quoted prices from those willing to trade in markets that are not active or other inputs that are market observable or can be corroborated by market data for the term of the instrument. Such other inputs include market interest rates and volatilities, spreads and yield curves. An instrument is classified in Level 2 if the Company determines that unobservable inputs are insignificant.

Debt and equity securities. Approximately 94% of the Company’s investments in debt and equity securities are classified in Level 2 including most public and private corporate debt and hybrid equity securities, federal agency and municipal bonds, non-government mortgage-backed securities and preferred stocks. Third-party pricing services and internal methods often use recent trades of securities

with similar features and characteristics because many debt securities do not trade daily. Pricing models are used to determine these prices when recent trades are not available. These models calculate fair values by discounting future cash flows at estimated market interest rates. Such market rates are derived by calculating the appropriate spreads over comparable U.S. Treasury securities based on the credit quality, industry and structure of the asset. Typical inputs and assumptions to pricing models include, but are not limited to, a combination of benchmark yields, reported trades, issuer spreads, liquidity, benchmark securities, bids, offers, reference data and industry and economic events. For mortgage-backed securities, inputs and assumptions may also include characteristics of the issuer, collateral attributes, prepayment speeds and credit rating.

Nearly all of these instruments are valued using recent trades or pricing models. Less than 1% of the fair value of investments classified in Level 2 represents foreign bonds that are valued using a single, unadjusted market-observable input derived by averaging multiple broker-dealer quotes, consistent with local market practice.

Short-term investments are carried at fair value that approximates cost. The Company compares market prices for these securities to recorded amounts on a regular basis to validate that current carrying amounts approximate exit prices. The short-term nature of the investments and corroboration of the reported amounts over the holding period support their classification in Level 2.

Derivative assets and liabilities classified in Level 2 represent over-the-counter instruments such as foreign currency forward and swap contracts. Fair values for these instruments are determined using market observable inputs including forward currency and interest rate curves and widely published market observable indices. Credit risk related to the counterparty and the Company is considered when estimating the fair values of these derivatives. However, the Company is largely protected by collateral arrangements with counterparties and determined that no adjustments for credit risk were required as of December 31, 2020 or 2019. The nature and use of these derivative financial instruments are described in Note 11.

Level 3 Financial Assets and Financial Liabilities

Certain inputs for instruments classified in Level 3 are unobservable (supported by little or no market activity) and significant to their resulting fair value measurement. Unobservable inputs reflect the Company’s best estimate of what hypothetical market participants would use to determine a transaction price for the asset or liability at the reporting date.

The Company classifies certain newly-issued, privately-placed, complex or illiquid securities in Level 3. Approximately 5% of debt and equity securities are priced using significant unobservable inputs and classified in this category.

Fair values of mortgage and other asset-backed securities, as well as corporate and government debt securities, are primarily determined using pricing models that incorporate the specific characteristics of each asset and related assumptions including the investment type and structure, credit quality, industry and maturity date in comparison to current market indices, spreads and liquidity of assets with similar characteristics. Inputs and assumptions for pricing may also include characteristics of the issuer, collateral attributes and prepayment speeds for mortgage and other asset-backed securities. Recent trades in the subject security or similar securities are assessed when available, and the Company may also review published research in its evaluation, as well as the issuer’s financial statements.

Corporate and government debt securities. The significant unobservable input used to value the following corporate and government debt securities is an adjustment for liquidity. This adjustment is needed to reflect current market conditions and issuer circumstances when there is limited trading activity for the security.Mortgage and other asset-backed securities. The significant unobservable inputs used to value the following mortgage and other asset-backed securities are liquidity and weighting of credit spreads. An adjustment for liquidity is made as of the measurement date that considers current market conditions, issuer circumstances and complexity of the security structure when there is limited trading activity for the security. An adjustment to weight credit spreads is needed to value a more complex bond structure with multiple underlying collateral and no standard market valuation technique. The weighting of credit spreads is primarily based on the underlying collateral’s characteristics and their proportional cash flows supporting the bond obligations.Significant increases in liquidity or credit spreads would result in lower fair value measurements while decreases in these inputs would result in higher fair value measurements. The unobservable inputs are generally not interrelated and a change in the assumption used for one unobservable input is not accompanied by a change in the other unobservable input.

Total gains and losses included in Shareholders’ net income in the tables above are reflected in the Consolidated Statements of Income as Net realized investment gains (losses) and Net investment income.

Gains and losses included in Other comprehensive income in the tables above are reflected in Net unrealized (depreciation) appreciation on securities and derivatives in the Consolidated Statements of Comprehensive Income.

Transfers into or out of the Level 3 category occur when unobservable inputs, such as the Company’s best estimate of what a market participant would use to determine a current transaction price, become more or less significant to the fair value measurement. Market

activity typically decreases during periods of economic uncertainty, and this decrease in activity reduces the availability of market observable data. As a result, the level of unobservable judgement that must be applied to the pricing of certain instruments increases, and is typically observed through the widening of liquidity and credit spreads.

Separate account assets classified as Level 1 primarily include exchange-listed equity securities. Level 2 assets primarily include:

•corporate and structured bonds valued using recent trades of similar securities or pricing models that discount future cash flows at estimated market interest rates as described above; and

•actively-traded institutional and retail mutual fund investments.

Separate account assets classified in Level 3 primarily support Cigna’s pension plans and include certain newly-issued, privately-placed, complex, or illiquid securities that are priced using methods discussed above, as well as commercial mortgage loans. Activity, including transfers into and out of Level 3, was not material in 2020 or 2019.

Separate account investments in securities partnerships, real estate and hedge funds are generally valued based on the separate account’s ownership share of the equity of the investee (NAV as a practical expedient) including changes in the fair values of its underlying investments. Substantially all of these assets support the Cigna Pension Plans.Some financial assets and liabilities are not carried at fair value each reporting period, but may be measured using fair value only under certain conditions such as when investments become impaired, including investment real estate and commercial mortgage loans and certain equity securities with no readily determinable fair value. For 2020 and 2019, there were no such impairments. Equity securities with no readily determinable fair value are also measured at fair value when there are observable price changes from orderly transactions with the same issuer.

Separate Accounts

Separate Accounts

Accounting policy. Separate account assets and liabilities are contractholder funds maintained in accounts with specific investment objectives. The assets of these accounts are legally segregated and are not subject to claims that arise out of any of the Company’s other businesses. These separate account assets are carried at fair value with equal amounts recorded for related separate account liabilities. The investment income and fair value gains and losses of separate account assets generally accrue directly to the contractholders and, together with their deposits and withdrawals, are excluded from the Company’s Consolidated Statements of Income and Cash Flows. Fees and charges earned for mortality risks, asset management or administrative services are reported in either Premiums or Fees and other revenues. Investments that are measured using the practical expedient of NAV are excluded from the fair value hierarchy.

Variable Interest Entities

When the Company becomes involved with a variable interest entity and when there is a change in the Company’s involvement with an entity, the Company must determine if it is the primary beneficiary and must consolidate the entity. The Company is considered the primary beneficiary if it has the power to direct the entity’s most significant economic activities and has the right to receive benefits or obligation to absorb losses that could be significant to the entity. The Company evaluates the following criteria:

•the structure and purpose of the entity;

•the risks and rewards created by, and shared through, the entity; and

•the Company’s ability to direct its activities, receive its benefits and absorb its losses relative to the other parties involved with the entity including its sponsors, equity holders, guarantors, creditors and servicers.

AOCI

AOCI includes unrealized appreciation on securities and derivatives (excluding appreciation on investments supporting future policy benefit liabilities of the run-off settlement annuity business) (See Note 11), foreign currency translation and the net postretirement benefits liability adjustment. AOCI includes the Company’s share from unconsolidated entities reported on the equity method. Generally, tax effects in AOCI are established at the currently enacted tax rate and reclassified to net income in the same period that the related pre-tax AOCI reclassifications are recognized.

Pension Plans

Accounting policy. The Company measures the assets and liabilities of its domestic pension plans as of December 31. Benefit obligations are measured at the present value of estimated future payments based on actuarial assumptions. The Company uses the “corridor” method to account for changes in the benefit obligation when actual results differ from those assumed, or when assumptions change. These changes are called net unrecognized actuarial gains (losses). Under the corridor method, net unrecognized actuarial gains (losses) are initially recorded in accumulated other comprehensive income. When the unrecognized gain (loss) exceeds 10% of the benefit obligation, that excess is amortized to expense over the expected remaining lives of plan participants. The net plan expense is reported in Interest expense and other in the Consolidated Statements of Income.For balance sheet purposes, we measure plan assets at fair value. When the actual return differs from the expected return, those differences are reflected in the net unrealized actuarial gain (loss) discussed above. However, to measure pension benefit costs, we use a “market-related” asset valuation that differs from the actual fair value for domestic pension plan assets invested in non-fixed income investments. The “market-related” value recognizes the difference between actual and expected long-term returns in the portfolio over five years, a method that reduces the short-term impact of market fluctuations on pension costs.

The Company develops discount rates by applying actual annualized yields for high quality bonds by duration to the expected pension plan liability cash flows. The bond yields represent a diverse mix of actively traded high quality fixed-income securities that have an above average return at each duration as management believes this approach is representative of the yield achieved through plan asset investment strategy.

The expected long-term return on plan assets was developed considering historical long-term actual returns, expected long-term market conditions, plan asset mix and management's plan asset investment strategy.

See Note 12 for further details regarding how fair value is determined, including the level within the fair value hierarchy and the procedures we use to validate fair value measurements. The Company classifies substantially all debt securities in Level 2 for pension plan assets. These assets are valued using recent trades of similar securities or are fund investments priced using their daily net asset value that is the exit price. A substantial portion of domestic equity securities within pension assets are classified as Level 1, while international equity funds within pension assets are predominantly classified in Level 2 using daily net asset value.

Securities partnerships, real estate and hedge funds are valued using NAV as a practical expedient and are excluded from the fair value hierarchy. See Note 12 for additional disclosures related to these assets invested in the separate accounts of the Company’s subsidiaries. Certain securities as described in Note 12, as well as commercial mortgage loans and guaranteed deposit account contracts, are classified in Level 3 because unobservable inputs used in their valuation are significant.

Employee Incentive Plans

The Company records compensation expense for stock and option awards over their vesting periods primarily based on the estimated fair value at the grant date. Fair value is determined differently for each type of award as discussed below.Accounting policy. The Company awards options to purchase Cigna common stock at the market price of the stock on the grant date except for rollover option awards issued to Express Scripts employees in connection with the acquisition. Options vest over periods ranging from one year to three years and expire no later than 10 years from grant date. Fair value is estimated using the Black-Scholes option-pricing model by applying the assumptions presented below. That fair value is reduced by options expected to be forfeited during the vesting period. The Company estimates forfeitures at the grant date based on our experience and adjusts the expense to reflect actual forfeitures over the vesting period. The fair value of options, net of forfeitures, is recognized in Selling, general and administrative expenses on a straight-line basis over the vesting period.Accounting policy. Fair value of restricted stock awards is equal to the market price of Cigna’s common stock on the date of grant. This fair value is reduced by awards that are expected to forfeit. At the grant date, the Company estimates forfeitures based on experience and adjusts the expense to reflect actual forfeitures over the vesting period. This fair value, net of forfeitures, is recognized in Selling, general and administrative expenses over the vesting period on a straight-line basis.Accounting policy. Compensation expense for SPSs is recorded over the performance period. Fair value is determined at the grant date for “market condition” SPSs using a Monte Carlo simulation model and not subsequently adjusted regardless of the final outcome. Expense is initially accrued for “performance condition” SPSs based on the most likely outcome, but evaluated for adjustment each period for updates in the expected outcome. Expense is adjusted to the actual outcome (number of shares awarded times the share price at the grant date) at the end of the performance period.

Goodwill

Accounting policy. Goodwill represents the excess of the cost of businesses acquired over the fair value of their net assets. The resulting goodwill is assigned to those reporting units expected to realize cash flows from the acquisition, based on those reporting units’ relative fair values. As a result, goodwill is primarily reported in the Evernorth segment ($33.8 billion), the U.S. Medical segment ($10.4 billion) and, to a lesser extent, the International Markets segment ($0.4 billion).

The Company conducts its annual quantitative evaluation for goodwill impairment during the third quarter at the reporting unit level and writes it down through shareholders’ net income if impaired. On a quarterly basis, the Company performs a qualitative impairment assessment to determine if events or changes in circumstances indicate that it is more likely than not that the carrying value of a reporting unit exceeds its estimated fair value. Fair value of a reporting unit is generally estimated based on either a market approach or a discounted cash flow analysis using assumptions that the Company believes a hypothetical market participant would use to determine a current transaction price. The significant assumptions and estimates used in determining fair value include the discount rate and future cash flows. A discount rate is selected to correspond with each reporting unit’s weighted average cost of capital, consistent with that used for investment decisions considering the specific and detailed operating plans and strategies within that reporting unit. Projections of future cash flows for each reporting unit are consistent with our annual planning process for revenues, pharmacy costs, benefits expenses, operating expenses, taxes, capital levels and long-term growth rates.

Other Intangibles

Accounting policy. The Company’s other intangible assets primarily include purchased customer and producer relationships, provider networks and trademarks. The fair value of purchased customer relationships and the amortization method were determined as of the dates of purchase using an income approach that relies on projected future net cash flows including key assumptions for customer attrition and discount rates. The Company’s definite-lived intangible assets are amortized on an accelerated or straight-line basis, reflecting their pattern of economic benefits, over periods from three to 39 years. Management revises amortization periods if it believes there has been a change in the length of time that an intangible asset will continue to have value. Costs incurred to renew or extend the terms of these intangible assets are generally expensed as incurred.

The Company’s amortized intangible assets are tested for impairment whenever events or changes in circumstances indicate that the carrying amount may not be recoverable. If the total of the expected future undiscounted cash flows generated by the underlying asset group is less than the carrying amount of the asset group, the Company recognizes an impairment charge equal to the difference between the carrying value of the asset group and its estimated fair value. The Company’s indefinite-lived intangible assets are each reviewed for impairment at least annually by comparing their fair value with their carrying value. If the carrying value exceeds fair value, that excess is recognized as an impairment loss.

Property and Equipment

Accounting policy. Property and equipment is carried at cost less accumulated depreciation. Cost includes interest, real estate taxes and other costs incurred during construction when applicable. Internal-use software that is acquired, developed or modified solely to meet the Company’s internal needs, with no plan to market externally, is also included in this category. Costs directly related to acquiring, developing or modifying internal-use software are capitalized.

The Company calculates depreciation and amortization principally using the straight-line method generally based on the estimated useful life of each asset as follows: buildings and improvements, 10 to 40 years; purchased software, three to five years; internally developed software, three to seven years and furniture and equipment (including computer equipment), three to 10 years. Improvements to leased facilities are depreciated over the lesser of the remaining lease term or the estimated life of the improvement. The Company considers events and circumstances that would indicate the carrying value of property, equipment or capitalized software might not be recoverable. An impairment charge is recorded if the Company determines the carrying value of any of these assets is not recoverable. The Company also reviews and shortens the estimated useful lives of these assets, if necessary.

Leases

Cigna adopted ASU 2016-2, Leases, as of January 1, 2019. As permitted by the standard, the Company did not restate its Consolidated Financial Statements for periods prior to the adoption date and the required disclosures presented below are prospective from the date of adoption. The Company’s leases are primarily for office space and certain computer and other equipment, and have terms of up to 34 years.Accounting policy. The Company determines if an arrangement is a lease and its lease classification (operating or finance) at inception. Beginning in the first quarter of 2019, both operating and finance leases result in (1) a right-of-use (“ROU”) asset that represents our right to use the underlying asset for the lease term and (2) a lease liability that represents our obligation to make lease payments arising from the lease.

These lease assets and liabilities are recognized at the lease commencement date based on the present value of the lease payments over the lease term. Most of the Company’s leases do not provide an implicit rate, so the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. The ROU asset also includes any lease pre-payments made and excludes lease incentives for operating leases. The Company’s expected life of a lease may consider options to extend or terminate a lease when it is reasonably certain that the Company will exercise that option.

The Company has lease agreements with lease and non-lease components that are accounted for as a single lease component. Variable lease payments are expensed as incurred and represent amounts that are neither fixed in nature, such as maintenance and other services provided by the lessor, nor tied to an index or rate.

Income Taxes

Accounting policy. Deferred income taxes are reflected in the Consolidated Balance Sheets for differences between the financial and income tax reporting bases of the Company’s underlying assets and liabilities, and established based upon enacted tax rates and laws. Deferred income tax assets are recognized when available evidence indicates that realization is more likely than not, and a valuation allowance is established to the extent this standard is not met. The deferred income tax provision generally represents the net change in deferred income tax assets and liabilities during the reporting period excluding adjustments to accumulated other comprehensive income or amounts recorded in connection with a business combination. The current income tax provision generally represents estimated amounts due on income tax returns for the year reported to various jurisdictions plus the effect of any uncertain tax positions. The Company recognizes a liability for uncertain tax positions if management believes the probability that the positions will be sustained is 50% or less. For uncertain positions that management believes are more likely than not to be sustained, the Company recognizes a liability based upon management's estimate of the most likely settlement outcome with the taxing authority. The

liabilities for uncertain tax positions are classified as current when the position is expected to be settled within 12 months or the statute of limitation expires within 12 months.

Income taxes attributable to the Company’s foreign operations are generally provided using the respective foreign jurisdictions’ tax rate.

Management believes that future results will be sufficient to realize a majority of the Company’s gross deferred tax assets. Valuation allowances are established against deferred tax assets when it is determined that it is more likely than not that the asset will not be recognized. Valuation allowances have been established against certain federal, state and foreign tax attributes. There are multiple expiration dates associated with these tax attributes.

Guarantees

The Company guarantees that separate account assets will be sufficient to pay certain life insurance or retiree benefits. For the majority of these benefits, the sponsoring employers are primarily responsible for ensuring that assets are sufficient to pay these benefits and are required to maintain assets that exceed a certain percentage of benefit obligations. If employers fail to do so, the Company or an affiliate of the buyer of the retirement benefits business has the right to redirect the management of the related assets to provide for benefit payments.

Commitment and Contingencies

The Company is routinely involved in numerous claims, lawsuits, regulatory inquiries and audits, government investigations, including under the federal False Claims Act and state false claims acts initiated by a government investigating body or by a qui tam relator’s filing of a complaint under court seal, and other legal matters arising, for the most part, in the ordinary course of managing a global health service business. Additionally, the Company has received and is cooperating with subpoenas or similar processes from various governmental agencies requesting information, all arising in the normal course of its business. Disputed tax matters arising from audits by the Internal Revenue Service or other state and foreign jurisdictions, including those resulting in litigation, are accounted for under GAAP guidance for uncertain tax positions. See Note 20 for additional information on income tax matters.

Pending litigation and legal or regulatory matters that the Company has identified with a reasonably possible material loss and certain other material litigation matters are described below. For those matters that the Company has identified with a reasonably possible material loss, the Company provides disclosure in the aggregate of accruals and range of loss, or a statement that such information cannot be estimated. The Company’s accruals for the matters discussed below under “Litigation Matters” and “Regulatory Matters” are not material. Due to numerous uncertain factors presented in these cases, it is not possible to estimate an aggregate range of loss (if any) for these matters at this time. In light of the uncertainties involved in these matters, there is no assurance that their ultimate

resolution will not exceed the amounts currently accrued by the Company. An adverse outcome in one or more of these matters could be material to the Company’s results of operations, financial condition or liquidity for any particular period. The outcomes of lawsuits are inherently unpredictable and we may be unsuccessful in these ongoing litigation matters or any future claims or litigation.

Segment Information

A description of our basis for reporting segment operating results is outlined below. Intersegment revenues primarily reflect pharmacy related transactions between the Evernorth and U.S. Medical segments. Effective with the first quarter of 2019, the Company began allocating compensation cost for stock options to segments. Prior year segment information was not restated for this change. A description of our basis for reporting segment operating results is outlined below. The Company uses “pre-tax adjusted income from operations” and “adjusted revenues” as its principal financial measures of segment operating performance because management believes they best reflect the underlying results of business operations and permit

analysis of trends in underlying revenue, expenses and profitability. Pre-tax adjusted income from operations is defined as income before taxes excluding realized investment results, amortization of acquired intangible assets, special items and, for periods prior to 2020, earnings contribution from transitioning clients Anthem Inc. and Coventry Health Care, Inc. (the “transitioning clients”). As of December 31, 2019, the transition of these clients was substantially complete; therefore, beginning in 2020, we no longer exclude results of transitioning clients from our adjusted revenues and adjusted income from operations. Income or expense amounts that are excluded from adjusted income from operations because they are not indicative of underlying performance or the responsibility of operating segment management include:

•Realized investment gains (losses) including changes in market values of certain financial instruments between balance sheet dates, as well as gains and losses associated with invested asset sales.

•Amortization of acquired intangible assets because these relate to costs incurred for acquisitions.

•Results of transitioning clients, for periods prior to 2020, because those results were not indicative of ongoing results.

•Special items, if any, that management believes are not representative of the underlying results of operations due to the nature or size of these matters.

The Company does not report total assets by segment because this is not a metric used to allocate resources or evaluate segment performance.

Adjusted revenues is defined as revenues excluding: 1) revenue contribution from transitioning clients for periods prior to 2020; 2) the Company’s share of certain realized investment results of its joint ventures reported in the International Markets segment using the equity method of accounting; and 3) special items, if any.