Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 2,313	$ 2,224
Other comprehensive loss, net of tax:
Net unrealized investment losses	(1,155)	(386)
Foreign currency translation adjustments	3	(2)
Net cash flow hedges	(3)	(4)
Other comprehensive loss	(1,155)	(392)
Comprehensive income	1,158	1,832
Comprehensive income attributable to noncontrolling interests	(1)	(1)
Comprehensive income attributable to CVS Health	$ 1,157	$ 1,831