Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues:
Premiums	$ 56,233	$ 49,394	$ 111,719	$ 100,034
Investment and other income	556	341	1,008	706
Total revenues	71,321	62,138	141,517	126,559
Operating costs:
Medical costs	46,546	34,678	91,450	75,678
Operating costs	10,359	10,001	20,582	20,016
Cost of products sold	7,660	7,501	15,232	15,188
Depreciation and amortization	778	717	1,536	1,440
Total operating costs	65,343	52,897	128,800	112,322
Earnings from operations	5,978	9,241	12,717	14,237
Interest expense	(410)	(430)	(807)	(867)
Earnings before income taxes	5,568	8,811	11,910	13,370
Provision for income taxes	(1,196)	(2,115)	(2,560)	(3,209)
Net earnings	4,372	6,696	9,350	10,161
Earnings attributable to noncontrolling interests	(106)	(59)	(222)	(142)
Net earnings attributable to UnitedHealth Group common shareholders	$ 4,266	$ 6,637	$ 9,128	$ 10,019
Earnings per share attributable to UnitedHealth Group common shareholders:
Basic	$ 4.52	$ 6.99	$ 9.66	$ 10.56
Diluted	$ 4.46	$ 6.91	$ 9.55	$ 10.43
Basic weighted-average number of common shares outstanding	944	949	945	949
Dilutive effect of common share equivalents	12	11	11	12
Diluted weighted-average number of common shares outstanding	956	960	956	961
Anti-dilutive shares excluded from the calculation of dilutive effect of common share equivalents	1	11	2	11
Products
Revenue from Products and Services	$ 8,433	$ 8,247	$ 16,773	$ 16,678
Services
Revenue from Products and Services	$ 6,099	$ 4,156	$ 12,017	$ 9,141

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The aggregate costs related to goods produced and sold and services rendered by an entity during the reporting period. This excludes costs incurred during the reporting period related to financial services rendered and other revenue generating activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 924
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 11.L)
-URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.2(a),(d))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227