Basis of Presentation (Notes)	9 Months Ended
Sep. 30, 2024
Basis of Presentation and Significant Accounting Policies [Text Block]	Basis of Presentation UnitedHealth Group Incorporated (individually and together with its subsidiaries, “UnitedHealth Group” and the “Company”) is a health care and well-being company with a mission to help people live healthier lives and help make the health system work better for everyone. The Company’s two distinct, yet complementary businesses — Optum and UnitedHealthcare — are working to help build a modern, high-performing health system through improved access, affordability, outcomes and experiences for the individuals and organizations the Company is privileged to serve. The Company has prepared the Condensed Consolidated Financial Statements according to U.S. Generally Accepted Accounting Principles (GAAP) and has included the accounts of UnitedHealth Group and its subsidiaries. The year-end condensed consolidated balance sheet was derived from audited financial statements, but does not include all disclosures required by GAAP. In accordance with the rules and regulations of the U.S. Securities and Exchange Commission (SEC), the Company has omitted certain footnote disclosures that would substantially duplicate the disclosures contained in its annual audited Consolidated Financial Statements. Therefore, these Condensed Consolidated Financial Statements should be read together with the Consolidated Financial Statements and the Notes included in Part II, Item 8, “Financial Statements and Supplementary Data” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 as filed with the SEC (2023 10-K). The accompanying Condensed Consolidated Financial Statements include all normal recurring adjustments necessary to present the interim financial statements fairly. Use of Estimates These Condensed Consolidated Financial Statements include certain amounts based on the Company’s best estimates and judgments. The Company’s most significant estimates relate to estimates and judgments for medical costs payable and goodwill. Certain of these estimates require the application of complex assumptions and judgments, often because they involve matters that are inherently uncertain and will likely change in subsequent periods. The impact of any change in estimates is included in earnings in the period in which the estimate is adjusted. Revenues - Products and Services As of September 30, 2024 and December 31, 2023, accounts receivable related to products and services were $9.2 billion and $8.6 billion, respectively. As of September 30, 2024, revenue expected to be recognized in any future year related to remaining performance obligations, excluding revenue pertaining to contracts having an original expected duration of one year or less, contracts where revenue is recognized as invoiced and contracts with variable consideration related to undelivered performance obligations, was $13.0 billion, of which approximately half is expected to be recognized in the next three years. Assets Under Management In July 2024, the Company amended and restated its Medicare Supplement Program with a membership organization (the Medicare Supplement Program). The amendments provide the Company the right to use a trade name and other intellectual property in marketing efforts for Medicare Supplement offerings. Amounts previously reported as assets under management are now included within the Company’s Condensed Consolidated Balance Sheet based upon their classification. For periods prior to the amended and restated Medicare Supplement Program, the Company excluded the effects of certain balance sheet amounts in its Condensed Consolidated Statements of Cash Flows, while these effects are included for periods after the amendments.

Basis of Presentation (Notes)

9 Months Ended

Sep. 30, 2024

Basis of Presentation and Significant Accounting Policies [Text Block]

Basis of Presentation

UnitedHealth Group Incorporated (individually and together with its subsidiaries, “UnitedHealth Group” and the “Company”) is a health care and well-being company with a mission to help people live healthier lives and help make the health system work better for everyone. The Company’s two distinct, yet complementary businesses — Optum and UnitedHealthcare — are working to help build a modern, high-performing health system through improved access, affordability, outcomes and experiences for the individuals and organizations the Company is privileged to serve.

The Company has prepared the Condensed Consolidated Financial Statements according to U.S. Generally Accepted Accounting Principles (GAAP) and has included the accounts of UnitedHealth Group and its subsidiaries. The year-end condensed consolidated balance sheet was derived from audited financial statements, but does not include all disclosures required by GAAP. In accordance with the rules and regulations of the U.S. Securities and Exchange Commission (SEC), the Company has omitted certain footnote disclosures that would substantially duplicate the disclosures contained in its annual audited Consolidated Financial Statements. Therefore, these Condensed Consolidated Financial Statements should be read together with the Consolidated Financial Statements and the Notes included in Part II, Item 8, “Financial Statements and Supplementary Data” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023 as filed with the SEC (2023 10-K). The accompanying Condensed Consolidated Financial Statements include all normal recurring adjustments necessary to present the interim financial statements fairly.

Use of Estimates

These Condensed Consolidated Financial Statements include certain amounts based on the Company’s best estimates and judgments. The Company’s most significant estimates relate to estimates and judgments for medical costs payable and goodwill. Certain of these estimates require the application of complex assumptions and judgments, often because they involve matters that are inherently uncertain and will likely change in subsequent periods. The impact of any change in estimates is included in earnings in the period in which the estimate is adjusted.

Revenues - Products and Services

As of September 30, 2024 and December 31, 2023, accounts receivable related to products and services were $9.2 billion and $8.6 billion, respectively. As of September 30, 2024, revenue expected to be recognized in any future year related to remaining performance obligations, excluding revenue pertaining to contracts having an original expected duration of one year or less, contracts where revenue is recognized as invoiced and contracts with variable consideration related to undelivered performance obligations, was $13.0 billion, of which approximately half is expected to be recognized in the next three years.

Assets Under Management

In July 2024, the Company amended and restated its Medicare Supplement Program with a membership organization (the Medicare Supplement Program). The amendments provide the Company the right to use a trade name and other intellectual property in marketing efforts for Medicare Supplement offerings. Amounts previously reported as assets under management are now included within the Company’s Condensed Consolidated Balance Sheet based upon their classification.

For periods prior to the amended and restated Medicare Supplement Program, the Company excluded the effects of certain balance sheet amounts in its Condensed Consolidated Statements of Cash Flows, while these effects are included for periods after the amendments.