Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 71	$ 2,265	$ 2,963	$ 6,321
Other comprehensive income (loss), net of tax:
Net unrealized investment gains (losses)	679	(321)	544	85
Change in discount rate on long-duration insurance reserves	(147)	181	(26)	167
Foreign currency translation adjustments	0	(2)	0	(1)
Net cash flow hedges	(4)	(4)	(12)	9
Other comprehensive income (loss)	528	(146)	506	260
Comprehensive income	599	2,119	3,469	6,581
Comprehensive (income) loss attributable to noncontrolling interests	16	(4)	7	(23)
Comprehensive income attributable to CVS Health	$ 615	$ 2,115	$ 3,476	$ 6,558