Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 2,961	$ 2,791	$ 5,274	$ 5,015
Other comprehensive income (loss), net of tax:
Net unrealized investment gains (losses)	(813)	149	(1,968)	(237)
Foreign currency translation adjustments	(1)	1	2	(1)
Net cash flow hedges	15	(3)	12	(7)
Pension and other postretirement benefits	1	1	1	1
Other comprehensive income (loss)	(798)	148	(1,953)	(244)
Comprehensive income	2,163	2,939	3,321	4,771
Comprehensive income attributable to noncontrolling interests	(10)	(8)	(11)	(9)
Comprehensive income attributable to CVS Health	$ 2,153	$ 2,931	$ 3,310	$ 4,762