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	$ 1,768	$ 1,914	$ 2,892	$ 4,056
Other comprehensive income (loss), net of tax:
Net unrealized investment gains (losses)	(27)	(64)	(135)	406
Change in discount rate on long-duration insurance reserves	53	60	121	(14)
Foreign currency translation adjustments	0	2	0	1
Net cash flow hedges	(4)	19	(8)	13
Other comprehensive income (loss)	22	17	(22)	406
Comprehensive income	1,790	1,931	2,870	4,462
Comprehensive (income) loss attributable to noncontrolling interests	2	(13)	(9)	(19)
Comprehensive income attributable to CVS Health	$ 1,792	$ 1,918	$ 2,861	$ 4,443