Condensed Consolidated Statements Of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues:
Premiums	$ 18,362	$ 15,651
Services	424	355
Investment income	149	101
Total revenues	18,935	16,107
Operating expenses:
Benefits	15,629	13,493
Operating costs	2,117	1,660
Depreciation and amortization	115	107
Total operating expenses	17,861	15,260
Income from operations	1,074	847
Interest expense	60	62
Other expense, net	297	39
Income before income taxes and equity in net earnings	717	746
Provision for income taxes	252	183
Equity in net earnings	8	3
Net income	$ 473	$ 566
Basic earnings per common share (in dollars per share)	$ 3.58	$ 4.18
Diluted earnings per common share (in dollars per share)	$ 3.56	$ 4.16