Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Statement of Comprehensive Income [Abstract]
Net income	$ 2,012	$ 1,427
Other comprehensive income (loss), net of tax:
Net unrealized investment gains (losses)	(311)	334
Foreign currency translation adjustments	(12)	1
Net cash flow hedges	(9)	(4)
Other comprehensive income (loss)	(332)	331
Comprehensive income	1,680	1,758
Comprehensive income attributable to noncontrolling interests	(5)	(6)
Comprehensive income attributable to CVS Health	$ 1,675	$ 1,752

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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