BASIS OF PRESENTATION AND SIGNIFICANT EVENTS (Policies)	3 Months Ended
Mar. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	The accompanying unaudited condensed consolidated financial statements are presented in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures normally required by accounting principles generally accepted in the United States of America, or GAAP, or those normally made in an Annual Report on Form 10-K. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. For further information, the reader of this Form 10-Q should refer to our Form 10-K for the year ended December 31, 2023, that was filed with the Securities and Exchange Commission, or the SEC, on February 15, 2024. We refer to this Form 10-K as the “2023 Form 10-K” in this document. References throughout this document to “we,” “us,” “our,” “Company,” and “Humana” mean Humana Inc. and its subsidiaries. The preparation of our condensed consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the unaudited condensed consolidated financial statements and accompanying notes. The areas involving the most significant use of estimates are the estimation of benefits payable, the impact of risk adjustment provisions related to our Medicare contracts, the valuation and related impairment recognition of investment securities, and the valuation and related impairment recognition of long-lived assets, including goodwill and indefinite-lived intangible assets. These estimates are based on knowledge of current events and anticipated future events, and accordingly, actual results may ultimately differ materially from those estimates. For additional information regarding accounting policies considered in preparing our consolidated financial statements, refer to Note 2 to the audited Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" in our 2023 Form 10-K. The financial information has been prepared in accordance with our customary accounting practices and has not been audited. In our opinion, the information presented reflects all adjustments necessary for a fair statement of interim results. All such adjustments are of a normal and recurring nature. Employer Group Commercial Medical Products Business Exit In February 2023, we announced our planned exit from the Employer Group Commercial Medical Products business, which includes all fully insured, self-funded and Federal Employee Health Benefit medical plans, as well as associated wellness and rewards programs. No other Humana health plan offerings are materially affected. Following a strategic review, we determined the Employer Group Commercial Medical Products business was no longer positioned to sustainably meet the needs of commercial members over the long term or support our long-term strategic plans. The exit from this line of business will be phased over the 18 to 24 months following our February 2023 announcement.
Revenue Recognition	Revenue Recognition Our revenues include premiums and services revenue. Services revenue includes administrative service fees that are recorded based upon established per member per month rates and the number of members for the month and are recognized as services are provided for the month. Additionally, services revenue includes net patient services revenue that are recorded based upon established billing rates, less allowances for contractual adjustments, and are recognized as services are provided. For additional information regarding our revenues, refer to Note 2 to the audited Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" in our 2023 Form 10-K. For additional information regarding disaggregation of revenue by segment and type, refer to Note 14 to the unaudited Condensed Consolidated Financial Statements included in Part I, Item 1, "Financial Statements" of this Form 10-Q.
Accounting Pronouncements Effective in Future Periods	Accounting Pronouncements Effective in Future Periods In December 2023, the FASB issued Accounting Standards Update No. 2023-07, Segment Reporting — Improvements to Reportable Segment Disclosures. The new guidance requires incremental disclosures related to a public entity’s reportable segments but does not change the definition of a segment, the method for determining segments, or the criteria for aggregating operating segments into reportable segments. The new guidance requires a public entity to disclose its significant segment expense categories and amounts for each reportable segment. The new guidance will be effective for us beginning with our annual 2024 year-end financial statements. We are currently evaluating the impact on our segment information footnote disclosures. In December 2023, the FASB issued Accounting Standards Update No. 2023-09 — Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The new guidance requires significant additional disclosures about income taxes, primarily focused on the disclosure of income taxes paid and the rate reconciliation table. The new guidance requires prospective application (with retrospective application permitted). The new guidance will be effective for us beginning with our annual 2025 year-end financial statements, with early adoption permitted. We are currently evaluating the impact on our income tax footnote disclosures. There are no other recently issued accounting standards that apply to us or that are expected to have a material impact on our results of operations, financial condition, or cash flows.

BASIS OF PRESENTATION AND SIGNIFICANT EVENTS (Policies)

3 Months Ended

Mar. 31, 2024

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The accompanying unaudited condensed consolidated financial statements are presented in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the disclosures normally required by accounting principles generally accepted in the United States of America, or GAAP, or those normally made in an Annual Report on Form 10-K. The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by GAAP. For further information, the reader of this Form 10-Q should refer to our Form 10-K for the year ended December 31, 2023, that was filed with the Securities and Exchange Commission, or the SEC, on February 15, 2024. We refer to this Form 10-K as the “2023 Form 10-K” in this document. References throughout this document to “we,” “us,” “our,” “Company,” and “Humana” mean Humana Inc. and its subsidiaries.

The preparation of our condensed consolidated financial statements in accordance with GAAP requires us to make estimates and assumptions that affect the amounts reported in the unaudited condensed consolidated financial statements and accompanying notes. The areas involving the most significant use of estimates are the estimation of benefits payable, the impact of risk adjustment provisions related to our Medicare contracts, the valuation and related impairment recognition of investment securities, and the valuation and related impairment recognition of long-lived assets, including goodwill and indefinite-lived intangible assets. These estimates are based on knowledge of current events and anticipated future events, and accordingly, actual results may ultimately differ materially from those estimates. For additional information regarding accounting policies considered in preparing our consolidated financial statements, refer to Note 2 to the audited Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" in our 2023 Form 10-K.

The financial information has been prepared in accordance with our customary accounting practices and has not been audited. In our opinion, the information presented reflects all adjustments necessary for a fair statement of interim results. All such adjustments are of a normal and recurring nature.

Employer Group Commercial Medical Products Business Exit

In February 2023, we announced our planned exit from the Employer Group Commercial Medical Products business, which includes all fully insured, self-funded and Federal Employee Health Benefit medical plans, as well as associated wellness and rewards programs. No other Humana health plan offerings are materially affected. Following a strategic review, we determined the Employer Group Commercial Medical Products business was no longer positioned to sustainably meet the needs of commercial members over the long term or support our long-term strategic plans. The exit from this line of business will be phased over the 18 to 24 months following our February 2023 announcement.

Revenue Recognition

Our revenues include premiums and services revenue. Services revenue includes administrative service fees that are recorded based upon established per member per month rates and the number of members for the month and are recognized as services are provided for the month. Additionally, services revenue includes net patient services revenue that are recorded based upon established billing rates, less allowances for contractual adjustments, and are

recognized as services are provided. For additional information regarding our revenues, refer to Note 2 to the audited Consolidated Financial Statements included in Part II, Item 8, "Financial Statements and Supplementary Data" in our 2023 Form 10-K. For additional information regarding disaggregation of revenue by segment and type, refer to Note 14 to the unaudited Condensed Consolidated Financial Statements included in Part I, Item 1, "Financial Statements" of this Form 10-Q.

Accounting Pronouncements Effective in Future Periods

In December 2023, the FASB issued Accounting Standards Update No. 2023-07, Segment Reporting — Improvements to Reportable Segment Disclosures. The new guidance requires incremental disclosures related to a public entity’s reportable segments but does not change the definition of a segment, the method for determining segments, or the criteria for aggregating operating segments into reportable segments. The new guidance requires a public entity to disclose its significant segment expense categories and amounts for each reportable segment. The new guidance will be effective for us beginning with our annual 2024 year-end financial statements. We are currently evaluating the impact on our segment information footnote disclosures.

In December 2023, the FASB issued Accounting Standards Update No. 2023-09 — Income Taxes (Topic 740): Improvements to Income Tax Disclosures. The new guidance requires significant additional disclosures about income taxes, primarily focused on the disclosure of income taxes paid and the rate reconciliation table. The new guidance requires prospective application (with retrospective application permitted). The new guidance will be effective for us beginning with our annual 2025 year-end financial statements, with early adoption permitted. We are currently evaluating the impact on our income tax footnote disclosures.

There are no other recently issued accounting standards that apply to us or that are expected to have a material impact on our results of operations, financial condition, or cash flows.