Earnings (Loss) Per Share (Tables)

9 Months Ended

Sep. 30, 2018

Earnings (Loss) Per Share

Reconciliation of basic and diluted earnings per common share

	Three Months Ended				Nine Months Ended
	September 30,				September 30,
In millions, except per share amounts	2018		2017		2018		2017
Numerator for earnings (loss) per share calculation:
Income (loss) from continuing operations	$	1,390	$	1,285	$	(174)	$	3,344
Income from continuing operations allocated to participating securities		(1)		(3)		(3)		(12)
Income from continuing operations attributable to noncontrolling interests		—		—		—		(1)
Income (loss) from continuing operations attributable to CVS Health	$	1,389	$	1,282	$	(177)	$	3,331
Denominator for earnings (loss) per share calculation:
Weighted average shares, basic		1,020		1,016		1,018		1,022
Effect of dilutive securities		2		4		—		4
Weighted average shares, diluted		1,022		1,020		1,018		1,026
Earnings (loss) per share from continuing operations:
Basic	$	1.36	$	1.26	$	(0.17)	$	3.26
Diluted	$	1.36	$	1.26	$	(0.17)	$	3.25