Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 1,124	$ 2,142
Other comprehensive income (loss), net of tax:
Net unrealized investment gains (losses)	(108)	470
Change in discount rate on long-duration insurance reserves	68	(74)
Foreign currency translation adjustments	0	(1)
Net cash flow hedges	(4)	(6)
Other comprehensive income (loss)	(44)	389
Comprehensive income	1,080	2,531
Comprehensive income attributable to noncontrolling interests	(11)	(6)
Comprehensive income attributable to CVS Health	$ 1,069	$ 2,525