Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues:
Premiums	$ 56,967	$ 50,863	$ 168,686	$ 150,897
Investment and other income	503	351	1,511	1,057
Total revenues	72,337	65,115	213,854	191,674
Operating costs:
Medical costs	47,302	41,636	138,752	117,314
Operating costs	10,725	10,174	31,307	30,190
Cost of products sold	7,802	7,935	23,034	23,123
Depreciation and amortization	796	719	2,332	2,159
Total operating costs	66,625	60,464	195,425	172,786
Earnings from operations	5,712	4,651	18,429	18,888
Interest expense	(422)	(395)	(1,229)	(1,262)
Earnings before income taxes	5,290	4,256	17,200	17,626
Provision for income taxes	(1,099)	(1,000)	(3,659)	(4,209)
Net earnings	4,191	3,256	13,541	13,417
Earnings attributable to noncontrolling interests	(105)	(84)	(327)	(226)
Net earnings attributable to UnitedHealth Group common shareholders	$ 4,086	$ 3,172	$ 13,214	$ 13,191
Earnings per share attributable to UnitedHealth Group common shareholders:
Basic	$ 4.33	$ 3.34	$ 14.00	$ 13.90
Diluted	$ 4.28	$ 3.30	$ 13.82	$ 13.73
Basic weighted-average number of common shares outstanding	943	950	944	949
Dilutive effect of common share equivalents	12	12	12	12
Diluted weighted-average number of common shares outstanding	955	962	956	961
Anti-dilutive shares excluded from the calculation of dilutive effect of common share equivalents	1	6	2	9
Products
Revenue from Products and Services	$ 8,703	$ 8,777	$ 25,476	$ 25,455
Services
Revenue from Products and Services	$ 6,164	$ 5,124	$ 18,181	$ 14,265

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