Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenues:
Revenues from customers	$ 64,547	$ 47,269	$ 189,082	$ 139,670
Net investment income	263	221	805	485
Total revenues	64,810	47,490	189,887	140,155
Operating costs:
Cost of products sold	40,437	39,502	116,654	115,883
Benefit costs	12,850	439	39,396	2,399
Goodwill impairment	0	0	0	3,921
Operating expenses	8,595	4,975	24,887	14,755
Total operating costs	61,882	44,916	180,937	136,958
Operating income	2,928	2,574	8,950	3,197
Interest expense	747	674	2,301	1,886
Loss on early extinguishment of debt	79	0	79	0
Other expense (income)	(31)	1	(93)	7
Income before income tax provision	2,133	1,899	6,663	1,304
Income tax provision	604	509	1,776	1,478
Income (loss) from continuing operations	1,529	1,390	4,887	(174)
Loss from discontinued operations, net of tax	0	0	0	(1)
Net income (loss)	1,529	1,390	4,887	(175)
Net loss attributable to noncontrolling interests	1	0	0	0
Net income (loss) attributable to CVS Health	$ 1,530	$ 1,390	$ 4,887	$ (175)
Basic earnings (loss) per share:
Income (loss) from continuing operations attributable to CVS Health, basic (in dollars per share)	$ 1.17	$ 1.36	$ 3.76	$ (0.17)
Loss from discontinued operations attributable to CVS Health, basic (in dollars per share)	0	0	0	0
Net income (loss) attributable to CVS Health, basic (in dollars per share)	$ 1.17	$ 1.36	$ 3.76	$ (0.17)
Weighted average basic shares outstanding (in shares)	1,302	1,020	1,300	1,018
Diluted earnings (loss) per share:
Income (loss) from continuing operations attributable to CVS Health, diluted (in dollars per share)	$ 1.17	$ 1.36	$ 3.75	$ (0.17)
Loss from discontinued operations attributable to CVS Health, diluted (in dollars per share)	0	0	0	0
Net income (loss) attributable to CVS Health, diluted (in dollars per share)	$ 1.17	$ 1.36	$ 3.75	$ (0.17)
Weighted average diluted shares outstanding (in shares)	1,305	1,022	1,303	1,018
Dividends declared per share (in dollars per share)	$ 0.50	$ 0.5	$ 1.50	$ 1.5
Products
Revenues:
Revenues from customers	$ 47,149	$ 46,334	$ 136,023	$ 136,035
Premiums
Revenues:
Revenues from customers	15,539	627	47,612	2,684
Services
Revenues:
Revenues from customers	$ 1,859	$ 308	$ 5,447	$ 951