Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Premiums	$ 47,397	$ 44,613	$ 142,074	$ 133,155
Products	7,546	7,344	23,971	21,050
Services	4,942	4,217	13,756	12,590
Investment and other income	466	382	1,453	1,035
Total revenues	60,351	56,556	181,254	167,830
Operating costs:
Medical costs	39,041	36,158	117,164	108,448
Operating costs	8,960	8,479	25,892	25,371
Cost of products sold	6,627	6,718	21,606	19,373
Depreciation and amortization	709	611	2,002	1,791
Total operating costs	55,337	51,966	166,664	154,983
Earnings from operations	5,014	4,590	14,590	12,847
Interest expense	(449)	(353)	(1,267)	(1,026)
Earnings before income taxes	4,565	4,237	13,323	11,821
Provision for income taxes	(936)	(953)	(2,752)	(2,603)
Net earnings	3,629	3,284	10,571	9,218
Earnings attributable to noncontrolling interests	(91)	(96)	(273)	(272)
Net earnings attributable to UnitedHealth Group common shareholders	$ 3,538	$ 3,188	$ 10,298	$ 8,946
Earnings per share attributable to UnitedHealth Group common shareholders:
Basic	$ 3.73	$ 3.31	$ 10.82	$ 9.29
Diluted	$ 3.67	$ 3.24	$ 10.65	$ 9.09
Basic weighted-average number of common shares outstanding	949	962	952	963
Dilutive effect of common share equivalents	14	21	15	21
Diluted weighted-average number of common shares outstanding	963	983	967	984
Anti-dilutive shares excluded from the calculation of dilutive effect of common share equivalents	12	7	10	7