Consolidated Statements Of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues
Premiums	$ 28,533	$ 25,092	$ 56,209	$ 50,609
Product revenue	3,042	2,543	5,779	4,887
Administrative fees and other revenue	1,704	1,543	3,389	3,130
Total operating revenue	33,279	29,178	65,377	58,626
Net investment income	400	57	691	311
Net realized gains (losses) on financial instruments	172	29	168	(52)
Total revenues	33,851	29,264	66,236	58,885
Expenses
Benefit expense	24,763	19,547	48,462	41,036
Cost of products sold	2,614	2,225	4,927	4,209
Selling, general and administrative expense	3,821	4,046	7,746	7,827
Interest expense	205	201	397	395
Amortization of other intangible assets	90	93	170	176
Loss on extinguishment of debt	5	3	5	4
Total expenses	31,498	26,115	61,707	53,647
Income before income tax expense	2,353	3,149	4,529	5,238
Income tax expense	552	873	1,061	1,439
Net income	1,801	2,276	3,468	3,799
Net income attributable to noncontrolling interests	(8)	0	(10)	0
Shareholders’ net income	$ 1,793	$ 2,276	$ 3,458	$ 3,799
Shareholders’ net income per share
Basic net income per share	$ 7.33	$ 9.02	$ 14.13	$ 15.06
Diluted net income per share	7.25	8.91	13.95	14.85
Dividends per share	$ 1.13	$ 0.95	$ 2.26	$ 1.90