CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues:
Premium and service revenues	$ 117,983	$ 103,800	$ 70,364
Premium tax and health insurer fee	7,999	7,315	4,275
Total revenues	125,982	111,115	74,639
Expenses:
Medical costs	98,602	86,264	58,862
Cost of services	4,894	3,303	2,465
Selling, general and administrative expenses	10,166	9,867	6,533
Amortization of acquired intangible assets	770	719	258
Premium tax expense	8,287	6,332	4,469
Health insurer fee expense	0	1,476	0
Impairment	229	72	271
Legal settlement	1,250	0	0
Total operating expenses	124,198	108,033	72,858
Earnings from operations	1,784	3,082	1,781
Other income (expense):
Investment and other income	819	480	443
Debt extinguishment costs	(125)	(61)	(30)
Interest expense	(665)	(728)	(412)
Earnings before income tax expense	1,813	2,773	1,782
Income tax expense	477	979	473
Net earnings	1,336	1,794	1,309
Loss attributable to noncontrolling interests	11	14	12
Net earnings attributable to Centene Corporation	$ 1,347	$ 1,808	$ 1,321
Net earnings per common share attributable to Centene Corporation:
Basic earnings per common share (in usd per share)	$ 2.31	$ 3.17	$ 3.19
Diluted earnings per common share (in usd per share)	$ 2.28	$ 3.12	$ 3.14
Weighted average number of common shares outstanding:
Basic (in shares)	582,832	570,722	413,487
Diluted (in shares)	590,516	579,135	420,409
Premium
Revenues:
Premium and service revenues	$ 112,319	$ 100,055	$ 67,439
Service
Revenues:
Premium and service revenues	$ 5,664	$ 3,745	$ 2,925