Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2021	Mar. 31, 2020
Revenues:
Premiums	$ 55,486	$ 50,640
Investment and other income	452	365
Total revenues	70,196	64,421
Operating costs:
Medical costs	44,904	41,000
Operating costs	10,223	10,015
Cost of products sold	7,572	7,687
Depreciation and amortization	758	723
Total operating costs	63,457	59,425
Earnings from operations	6,739	4,996
Interest expense	(397)	(437)
Earnings before income taxes	6,342	4,559
Provision for income taxes	(1,364)	(1,094)
Net earnings	4,978	3,465
Earnings attributable to noncontrolling interests	(116)	(83)
Net earnings attributable to UnitedHealth Group common shareholders	$ 4,862	$ 3,382
Earnings per share attributable to UnitedHealth Group common shareholders:
Basic	$ 5.14	$ 3.56
Diluted	$ 5.08	$ 3.52
Basic weighted-average number of common shares outstanding	945	949
Dilutive effect of common share equivalents	12	13
Diluted weighted-average number of common shares outstanding	957	962
Anti-dilutive shares excluded from the calculation of dilutive effect of common share equivalents	3	10
Products
Revenue from Products and Services	$ 8,340	$ 8,431
Services
Revenue from Products and Services	$ 5,918	$ 4,985

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.

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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