CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Income Statement [Abstract]
Services	Health Care [Member]	Health Care [Member]
Revenues:
Premiums	$ 30,514	$ 28,261
Services	1,334	1,062
Investment income	264	288
Total revenues	32,112	29,611
Operating expenses:
Benefits	26,535	25,124
Operating costs	3,380	3,042
Depreciation and amortization	183	209
Total operating expenses	30,098	28,375
Income from operations	2,014	1,236
Interest expense	160	159
Other expense, net	163	63
Income before income taxes and equity in net losses	1,691	1,014
Provision for income taxes	406	251
Equity in net losses	(43)	(24)
Net income	1,242	739
Net loss attributable to noncontrolling interests	2	2
Net income attributable to Humana	$ 1,244	$ 741
Basic earnings per common share (in dollars per share)	$ 10.31	$ 6.13
Diluted earnings per common share (in dollars per share)	$ 10.30	$ 6.11