CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Services	Health Care [Member]	Health Care [Member]	Health Care [Member]
Revenues:
Premiums	$ 112,104	$ 101,272	$ 87,712
Services	4,431	4,033	4,776
Investment income	1,226	1,069	382
Total revenues	117,761	106,374	92,870
Operating expenses:
Benefits	100,664	88,394	75,690
Operating costs	13,696	13,188	12,671
Depreciation and amortization	839	779	709
Total operating expenses	115,199	102,361	89,070
Income from operations	2,562	4,013	3,800
Gain on sale of Gentiva Hospice	0	0	(237)
Interest expense	660	493	401
Other expense, net	181	137	68
Income before income taxes and equity in net losses	1,721	3,383	3,568
Provision for income taxes	413	836	762
Equity in net losses	(94)	(63)	(4)
Net income	1,214	2,484	2,802
Net (income) loss attributable to noncontrolling interests	(7)	5	4
Net income attributable to Humana	$ 1,207	$ 2,489	$ 2,806
Basic earnings per common share (in dollars per share)	$ 10.01	$ 20.09	$ 22.20
Diluted earnings per common share (in dollars per share)	$ 9.98	$ 20.00	$ 22.08