Consolidated Statements Of Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues
Premiums	$ 30,395	$ 26,392	$ 86,604	$ 77,001
Product revenue	3,353	2,598	9,132	7,485
Administrative fees and other revenue	1,800	1,659	5,189	4,789
Total operating revenue	35,548	30,649	100,925	89,275
Net investment income	335	280	1,026	591
Net realized (losses) gains on financial instruments	(61)	229	107	177
Total revenues	35,822	31,158	102,058	90,043
Expenses
Benefit expense	26,645	22,921	75,107	63,957
Cost of products sold	2,898	2,222	7,825	6,431
Selling, general and administrative expense	3,946	5,305	11,692	13,132
Interest expense	201	198	598	593
Amortization of other intangible assets	136	93	306	269
Loss on extinguishment of debt	0	30	5	34
Total expenses	33,826	30,769	95,533	84,416
Income before income tax expense	1,996	389	6,525	5,627
Income tax expense	494	167	1,555	1,606
Net income	1,502	222	4,970	4,021
Net loss (income) attributable to noncontrolling interests	7	0	(3)	0
Shareholders’ net income	$ 1,509	$ 222	$ 4,967	$ 4,021
Shareholders’ net income per share
Basic net income per share	$ 6.20	$ 0.88	$ 20.33	$ 15.96
Diluted net income per share	6.13	0.87	20.09	15.75
Dividends per share	$ 1.13	$ 0.95	$ 3.39	$ 2.85