Earnings Per Share Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2013

Earnings Per Share [Abstract]

Basic and Diluted Earnings Per Share

The following table presents the calculation of basic and diluted earnings per share:

	Year Ended December 31,
(MILLIONS OF DOLLARS AND SHARES, EXCEPT PER SHARE DATA)	2013			2012		2011
Numerator
Net income before allocation to noncontrolling interests	$	503		$	436	$	248
Net income/(loss) attributable to noncontrolling interests	(1		)	—		3
Net income attributable to Zoetis Inc.	$	504		$	436	$	245
Denominator
Weighted-average common shares outstanding	500.002			500.000		500.000
Common stock equivalents: stock options, RSUs and DSUs	0.315			—
Weighted-average common and potential dilutive shares outstanding	500.317			500.000		500.000
Earnings per share attributable to Zoetis Inc. stockholders—basic	$	1.01		$	0.87	$	0.49
Earnings per share attributable to Zoetis Inc. stockholders—diluted	$	1.01		$	0.87	$	0.49