CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Statement [Abstract]
Services	Health Care [Member]	Health Care [Member]	Health Care [Member]
Revenues:
Premiums	$ 87,712	$ 79,822	$ 74,186
Services	4,776	3,055	1,815
Investment income	382	187	1,154
Total revenues	92,870	83,064	77,155
Operating expenses:
Benefits	75,690	69,199	61,628
Operating costs	12,671	10,121	10,052
Depreciation and amortization	709	596	489
Total operating expenses	89,070	79,916	72,169
Income from operations	3,800	3,148	4,986
Gain on sale of KAH Hospice	(237)	0	0
Interest expense	401	326	283
Other expense (income), net	68	(532)	103
Income before income taxes and equity in net (losses) earnings	3,568	3,354	4,600
Provision for income taxes	762	485	1,307
Equity in net (losses) earnings	(4)	65	74
Net income	2,802	2,934	3,367
Net loss (income) attributable to noncontrolling interests	4	(1)	0
Net income attributable to Humana	$ 2,806	$ 2,933	$ 3,367
Basic earnings per common share (in dollars per share)	$ 22.20	$ 22.79	$ 25.47
Diluted earnings per common share (in dollars per share)	$ 22.08	$ 22.67	$ 25.31