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Basis of Presentation (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2026 | Mar. 31, 2025 | Dec. 31, 2025
Nature of Operations | 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. |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 26,587 |  | $ 23,018
Revenue, Remaining Performance Obligation, Amount | $ 11,000 |  |
Revenue, Remaining Performance Obligation, Percentage | 50.00% |  |
Uncommitted Receivables Financing Facility | $ 3,300 |  |
Receivables sold under receivables financing facility | 585 |  |
Uncommitted Receivables Facility, Amount Collected but Not Remitted | 245 |  | 1,000
Gain On Portfolio Actions | 230 |  |
Investment and other income | 1,131 | $ 1,033 |
Medical costs | 73,489 | 73,411 |
Amount remitted to financial institutions | 2,000 |  |
Amount collected in 2026 related to receivables sold in 2025 | 1,000 |  |
Operating costs | 15,390 | $ 13,594 |
United Health Foundation contribution |  |  |
Restructuring Costs | 400 |  |
Loss contract reserves |  |  |
Restructuring Costs | 137 |  |
Net valuation gains on equity securities |  |  |
Restructuring Costs | 59 |  |
Restructuring and other actions |  |  |
Investment and other income | 74 |  |
Medical costs | 137 |  |
Operating costs | 415 |  |
Optum Insight |  |  |
Gain On Portfolio Actions | 528 |  |
Restructuring Costs | 339 |  |
Optum Rx |  |  |
Gain On Portfolio Actions | 8 |  |
Optum Health |  |  |
Restructuring Costs | 135 |  |
Loss On Portfolio Actions | $ 306 |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-04-01 |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period | 3 years |  |
unh:ProductsandservicesMember |  |  |
Accounts Receivable, after Allowance for Credit Loss, Current | $ 9,300 |  | $ 9,700

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