CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Statement of Comprehensive Income [Abstract]
Net income attributable to Humana	$ 959	$ 696	$ 2,198	$ 1,626
Other comprehensive income (loss):
Change in gross unrealized investment gains (losses)	(137)	(623)	51	(1,392)
Effect of income taxes	31	144	(12)	320
Total change in unrealized investment gains (losses), net of tax	(106)	(479)	39	(1,072)
Reclassification adjustment for net realized losses (gains)	(8)	0	53	(27)
Effect of income taxes	1	0	(14)	6
Total reclassification adjustment, net of tax	(7)	0	39	(21)
Other comprehensive income (loss), net of tax	(113)	(479)	78	(1,093)
Comprehensive income attributable to Humana	$ 846	$ 217	$ 2,276	$ 533