CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenues:
Premiums	$ 27,951	$ 25,099	$ 84,354	$ 76,144
Services	1,103	1,016	3,265	2,993
Investment income	343	308	929	775
Total revenues	29,397	26,423	88,548	79,912
Operating expenses:
Benefits	25,120	21,745	75,283	65,612
Operating costs	3,339	3,271	9,529	9,361
Depreciation and amortization	210	201	631	578
Total operating expenses	28,669	25,217	85,443	75,551
Income from operations	728	1,206	3,105	4,361
Interest expense	169	114	496	347
Other (income) expense, net	(92)	(6)	26	40
Income (loss) before income taxes and equity in net losses	651	1,098	2,583	3,974
Provision for income taxes	155	256	629	911
Equity in net losses	(16)	(12)	(57)	(39)
Net income	480	830	1,897	3,024
Net loss attributable to noncontrolling interests	0	2	3	6
Net income attributable to Humana	$ 480	$ 832	$ 1,900	$ 3,030
Basic earnings per common share (in dollars per share)	$ 3.99	$ 6.74	$ 15.76	$ 24.37
Diluted earnings per common share (in dollars per share)	$ 3.98	$ 6.71	$ 15.72	$ 24.26
Revenue from Contract with Customer, Product and Service [Extensible Enumeration]	Health Care [Member]	Health Care [Member]	Health Care [Member]	Health Care [Member]