CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income attributable to Humana	$ 679	$ 959	$ 1,420	$ 2,198
Other comprehensive income (loss):
Change in gross unrealized investment (losses) gains	(47)	(137)	(161)	51
Effect of income taxes	10	31	38	(12)
Total change in unrealized investment (losses) gains, net of tax	(37)	(106)	(123)	39
Reclassification adjustment for net realized losses (gains)	1	(8)	0	53
Effect of income taxes	0	1	0	(14)
Total reclassification adjustment, net of tax	1	(7)	0	39
Other comprehensive (loss) income, net of tax	(36)	(113)	(123)	78
Comprehensive income attributable to Humana	$ 643	$ 846	$ 1,297	$ 2,276