CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Services	Health Care [Member]	Health Care [Member]	Health Care [Member]	Health Care [Member]
Revenues:
Premiums	$ 30,716	$ 28,142	$ 61,230	$ 56,403
Services	1,400	1,100	2,734	2,162
Investment income	272	298	536	586
Total revenues	32,388	29,540	64,500	59,151
Operating expenses:
Benefits	27,565	25,039	54,100	50,163
Operating costs	3,547	3,148	6,927	6,190
Depreciation and amortization	178	212	361	421
Total operating expenses	31,290	28,399	61,388	56,774
Income (loss) from operations	1,098	1,141	3,112	2,377
Interest expense	157	168	317	327
Other expense, net	200	55	363	118
Income before income taxes and equity in net losses	741	918	2,432	1,932
Provision for income taxes	179	223	585	474
Equity in net losses	(19)	(17)	(62)	(41)
Net income	543	678	1,785	1,417
Net loss attributable to noncontrolling interests	2	1	4	3
Net income attributable to Humana	$ 545	$ 679	$ 1,789	$ 1,420
Basic earnings per common share (in dollars per share)	$ 4.52	$ 5.63	$ 14.83	$ 11.76
Diluted earnings per common share (in dollars per share)	$ 4.51	$ 5.62	$ 14.81	$ 11.74

The total amount of expense recognized during the period for future policy benefits, claims and claims adjustment costs, and for selling, general and administrative costs.

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.