Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Premiums	$ 47,164	$ 44,458	$ 94,677	$ 88,542
Products	8,353	7,004	16,425	13,706
Services	4,496	4,269	8,814	8,373
Investment and other income	582	355	987	653
Total revenues	60,595	56,086	120,903	111,274
Operating costs:
Medical costs	39,184	36,427	78,123	72,290
Operating costs	8,415	8,386	16,932	16,892
Cost of products sold	7,598	6,471	14,979	12,655
Depreciation and amortization	654	598	1,293	1,180
Total operating costs	55,851	51,882	111,327	103,017
Earnings from operations	4,744	4,204	9,576	8,257
Interest expense	(418)	(344)	(818)	(673)
Earnings before income taxes	4,326	3,860	8,758	7,584
Provision for income taxes	(941)	(850)	(1,816)	(1,650)
Net earnings	3,385	3,010	6,942	5,934
Earnings attributable to noncontrolling interests	(92)	(88)	(182)	(176)
Net earnings attributable to UnitedHealth Group common shareholders	$ 3,293	$ 2,922	$ 6,760	$ 5,758
Earnings per share attributable to UnitedHealth Group common shareholders:
Basic	$ 3.47	$ 3.04	$ 7.09	$ 5.98
Diluted	$ 3.42	$ 2.98	$ 6.97	$ 5.85
Basic weighted-average number of common shares outstanding	950	961	954	963
Dilutive effect of common share equivalents	14	21	16	21
Diluted weighted-average number of common shares outstanding	964	982	970	984
Anti-dilutive shares excluded from the calculation of dilutive effect of common share equivalents	11	6	9	7