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Description of Business (Notes)	12 Months Ended
	Dec. 31, 2023
Nature of Operations [Text Block]	Description of Business 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.

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- Definition

The entire disclosure for the nature of an entity's business, major products or services, principal markets including location, and the relative importance of its operations in each business and the basis for the determination, including but not limited to, assets, revenues, or earnings. For an entity that has not commenced principal operations, disclosures about the risks and uncertainties related to the activities in which the entity is currently engaged and an understanding of what those activities are being directed toward.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 275
-Publisher FASB
-URI https://asc.fasb.org//275/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-SubTopic 10
-Topic 275
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482861/275-10-50-1

+ Details

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