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Earnings Per Share (Tables)
 9 Months Ended
Sep. 30, 2013
Earnings Per Share [Abstract]  
Reconciliation of basic and diluted earnings per common share
The following is a reconciliation of basic and diluted earnings per common share for the respective periods:
 
 
Three Months Ended September 30,
 
Nine Months Ended
September 30,
In millions, except per share amounts
2013
 
2012
 
2013
 
2012
Numerators for earnings per common share calculations:
 
 
 
 
 
 
 
Income from continuing operations
$
1,260

 
$
1,011

 
$
3,338

 
$
2,753

Net loss attributable to noncontrolling interest
—

 
—

 
—

 
2

Income from continuing operations attributable to CVS Caremark
1,260

 
1,011

 
3,338

 
2,755

Loss from discontinued operations, net of tax
(6
)
 
(5
)
 
(7
)
 
(7
)
Net income attributable to CVS Caremark, basic and diluted
$
1,254

 
$
1,006

 
$
3,331

 
$
2,748

Denominators for earnings per common share calculations:
 

 
 

 
 

 
 

Weighted average common shares, basic
1,218

 
1,265

 
1,226

 
1,281

Effect of dilutive securities:


 


 
 

 
 

Stock options
7

 
8

 
7

 
8

Restricted stock units
1

 
1

 
1

 
1

Weighted average common shares, diluted
1,226

 
1,274

 
1,234

 
1,290

Basic earnings per common share:
 

 
 

 
 

 
 

Income from continuing operations attributable to CVS Caremark
$
1.04

 
$
0.80

 
$
2.72

 
$
2.15

Loss from discontinued operations attributable to CVS Caremark
$
(0.01
)
 
$
—

 
$
(0.01
)
 
$
(0.01
)
Net income attributable to CVS Caremark
$
1.03

 
$
0.80

 
$
2.72

 
$
2.15

Diluted earnings per common share:


 
 
 
 

 
 

Income from continuing operations attributable to CVS Caremark
$
1.03

 
$
0.79

 
$
2.70

 
$
2.14

Loss from discontinued operations attributable to CVS Caremark
$
(0.01
)
 
$
—

 
$
(0.01
)
 
$
(0.01
)
Net income attributable to CVS Caremark
$
1.02

 
$
0.79

 
$
2.70

 
$
2.13