Summary of Significant Accounting Policies	3 Months Ended
Mar. 31, 2023
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Note 2 – Summary of Significant Accounting Policies Basis of Presentation The Consolidated Financial Statements include the accounts of The Cigna Group 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"). Certain amounts in prior years have been reclassified to conform to the current year presentation. 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. These interim Consolidated Financial Statements are unaudited but include all adjustments (including normal recurring adjustments) necessary, in the opinion of management, for a fair statement of financial position and results of operations for the periods reported. The interim Consolidated Financial Statements and Notes should be read in conjunction with the Consolidated Financial Statements and Notes included in the 2022 Annual Report on Form 10-K ("2022 Form 10-K"). The preparation of interim Consolidated Financial Statements necessarily relies heavily on estimates. This and other factors, including the seasonal nature of portions of the health care and related benefits business, as well as competitive and other market conditions, call for caution in estimating full-year results based on interim results of operations. Recent Accounting Pronouncements The Company's 2022 Form 10-K includes discussion of significant recent accounting pronouncements that either have impacted or may impact our financial statements in the future. The following information provides updates on recently adopted accounting pronouncements that have occurred since the Company filed its 2022 Form 10-K. There are no accounting pronouncements not yet adopted as of March 31, 2023. Targeted Improvements to the Accounting for Long-Duration Contracts ("LDTI"), Accounting Standards Update ("ASU") 2018-12 and related amendments The Cigna Group adopted LDTI January 1, 2023, which includes the following key provisions: •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) are updated at least annually with the effect of changes in those assumptions remeasured retrospectively and reflected in current period net income. •Discount rate assumptions are updated quarterly based on market-level yields for low credit risk fixed income instruments ("upper-medium grade fixed-income instrument"), with any changes reflected in other comprehensive income. The upper-medium grade fixed-income instrument yield is interpreted to mean A-rated. •Deferred policy acquisition costs ("DAC") related to long-duration insurance contracts are 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 ("MRB"), defined as protecting the contractholder from other-than-nominal capital market risk and exposing the insurer to that risk, are measured at fair value, with changes in fair value recognized in net income each period, except for the effect of the Company's change in nonperformance risk (own credit risk), which is recognized in other comprehensive income. •Additional disclosures, including disaggregated roll forwards for the liability for future policy benefits, market risk benefits, separate account liabilities and DAC, as well as information about significant inputs, judgments, assumptions and methods used in measurement. •The transition methods applied at adoption were: •The liability for future policy benefits was remeasured using a modified retrospective approach applied to all outstanding contracts as of the beginning of the earliest period presented and was recognized in the opening balance of retained earnings. The impact of remeasuring the future policy benefits liability for the discount rate was recorded through accumulated other comprehensive income. •DAC followed the transition method used for future policyholder benefits. •Market risk benefits were remeasured at fair value at the beginning of the earliest period presented. The difference between this fair value and carrying value was recognized in the opening balance of retained earnings, excluding the effect of the Company's change in nonperformance risk (own credit risk), which is recognized in accumulated other comprehensive income. Effects of adoption: •The new guidance applies to our long-duration insurance products predominantly within the Cigna Healthcare segment and Other Operations. •The cumulative effects of adopting the new standard were immaterial. The impacts were a decrease to January 1, 2021 Shareholders' equity of $139 million and an increase to Shareholders' net income for the year ended December 31, 2022 and December 31, 2021 of $36 million and $5 million, respectively. The corresponding impact to diluted earnings per share was an increase of $0.11 and $0.02 for the year ended December 31, 2022 and December 31, 2021, respectively. •The prior periods within our Consolidated Statements of Income, Consolidated Statements of Comprehensive Income, Consolidated Balance Sheets, Consolidated Statements of Changes in Total Equity and Consolidated Statements of Cash Flows were restated to conform to the current presentation. •Prior period balances in the Company's footnote disclosures have been updated to reflect adjustments resulting from the adoption of this standard. Refer to Note 9 to the Consolidated Financial Statements for the Company's updated accounting policies. •It is possible that our income recognition pattern could change on a prospective basis for several reasons: •Applying periodic assumption updates, versus the locked-in model, may change our timing of profit or loss recognition. •DAC amortization is 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. Additionally, in December 2022, the Financial Accounting Standards Board ("FASB") published ASU 2022-05, which simplified the retrospective adoption of LDTI by permitting companies to make an accounting policy election to exclude contracts that are sold and removed from the balance sheet prior to the effective date of the standard from the retrospective adoption of LDTI. The Cigna Group made this policy election for the contracts sold in the Chubb transaction and our divested interest in a joint venture in Türkiye.

The Consolidated Financial Statements include the accounts of The Cigna Group 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"). Certain amounts in prior years have been reclassified to conform to the current year presentation.

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.

The Company's 2022 Form 10-K includes discussion of significant recent accounting pronouncements that either have impacted or may impact our financial statements in the future. The following information provides updates on recently adopted accounting pronouncements that have occurred since the Company filed its 2022 Form 10-K. There are no accounting pronouncements not yet adopted as of March 31, 2023.

Targeted Improvements to the Accounting for Long-Duration Contracts ("LDTI"), Accounting Standards Update ("ASU") 2018-12 and related amendments

•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) are updated at least annually with the effect of changes in those assumptions remeasured retrospectively and reflected in current period net income.

•Discount rate assumptions are updated quarterly based on market-level yields for low credit risk fixed income instruments ("upper-medium grade fixed-income instrument"), with any changes reflected in other comprehensive income. The upper-medium grade fixed-income instrument yield is interpreted to mean A-rated.

•Deferred policy acquisition costs ("DAC") related to long-duration insurance contracts are 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 ("MRB"), defined as protecting the contractholder from other-than-nominal capital market risk and exposing the insurer to that risk, are measured at fair value, with changes in fair value recognized in net income each period, except for the effect of the Company's change in nonperformance risk (own credit risk), which is recognized in other comprehensive income.

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

•The liability for future policy benefits was remeasured using a modified retrospective approach applied to all outstanding contracts as of the beginning of the earliest period presented and was recognized in the opening balance of retained earnings. The impact of remeasuring the future policy benefits liability for the discount rate was recorded through accumulated other comprehensive income.

•Market risk benefits were remeasured at fair value at the beginning of the earliest period presented. The difference between this fair value and carrying value was recognized in the opening balance of retained earnings, excluding the effect of the Company's change in nonperformance risk (own credit risk), which is recognized in accumulated other comprehensive income.

•The new guidance applies to our long-duration insurance products predominantly within the Cigna Healthcare segment and Other Operations.

•The cumulative effects of adopting the new standard were immaterial. The impacts were a decrease to January 1, 2021 Shareholders' equity of $139 million and an increase to Shareholders' net income for the year ended December 31, 2022 and December 31, 2021 of $36 million and $5 million, respectively. The corresponding impact to diluted earnings per share was an increase of $0.11 and $0.02 for the year ended December 31, 2022 and December 31, 2021, respectively.

•The prior periods within our Consolidated Statements of Income, Consolidated Statements of Comprehensive Income, Consolidated Balance Sheets, Consolidated Statements of Changes in Total Equity and Consolidated Statements of Cash Flows were restated to conform to the current presentation.

•Prior period balances in the Company's footnote disclosures have been updated to reflect adjustments resulting from the adoption of this standard. Refer to Note 9 to the Consolidated Financial Statements for the Company's updated accounting policies.

•It is possible that our income recognition pattern could change on a prospective basis for several reasons:

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

•DAC amortization is 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.

Additionally, in December 2022, the Financial Accounting Standards Board ("FASB") published ASU 2022-05, which simplified the retrospective adoption of LDTI by permitting companies to make an accounting policy election to exclude contracts that are sold and removed from the balance sheet prior to the effective date of the standard from the retrospective adoption of LDTI. The Cigna Group made this policy election for the contracts sold in the Chubb transaction and our divested interest in a joint venture in Türkiye.