Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 924	$ 1,272	$ 2,071	$ 2,493
Other comprehensive income (loss):
Foreign currency translation adjustments, net of tax	22	9	40	(39)
Cash flow hedges, net of tax	0	0	1	1
Net other comprehensive income	22	9	41	(38)
Comprehensive income	946	1,281	2,112	2,455
Comprehensive income attributable to noncontrolling interest	0	0	(1)	0
Comprehensive income attributable to CVS Health	$ 946	$ 1,281	$ 2,111	$ 2,455