Condensed Consolidated Statements of Income - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Income Statement [Abstract]
Net revenues	$ 38,644	$ 35,021	$ 112,144	$ 102,312
Cost of revenues	31,983	28,553	92,917	83,578
Gross profit	6,661	6,468	19,227	18,734
Operating expenses	4,330	4,222	12,502	12,256
Operating profit	2,331	2,246	6,725	6,478
Interest expense, net	261	153	562	469
Gains (Losses) on Extinguishment of Debt	0	521	0	521
Income before income tax provision	2,070	1,572	6,163	5,488
Income tax provision	833	624	2,433	2,165
Income from continuing operations	1,237	948	3,730	3,323
Income from discontinued operations, net of tax	10	0	10	0
Net income	1,247	948	3,740	3,323
Net income attributable to noncontrolling interest	(1)	0	(1)	0
Net income attributable to CVS Health	$ 1,246	$ 948	$ 3,739	$ 3,323
Basic earnings per share:
Income (Loss) from Continuing Operations, Per Basic Share	$ 1.10	$ 0.82	$ 3.31	$ 2.84
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	0.01	0.00	0.01	0.00
Earnings Per Share, Basic	$ 1.11	$ 0.82	$ 3.32	$ 2.84
Weighted averages shares outstanding, basic (in shares)	1,114	1,157	1,122	1,167
Diluted earnings per share:
Income (Loss) from Continuing Operations, Per Diluted Share	$ 1.10	$ 0.81	$ 3.28	$ 2.82
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	0.01	0.00	0.01	0.00
Earnings Per Share, Diluted	$ 1.11	$ 0.81	$ 3.29	$ 2.82
Weighted averages shares outstanding, diluted (in shares)	1,121	1,164	1,130	1,175
Dividends declared per share	$ 0.350	$ 0.275	$ 1.050	$ 0.825