Earnings Per Share

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Earnings per Share

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)	2023		2022		2021
Numerator
Net income before allocation to noncontrolling interests	$	2,340	$	2,111	$	2,034
Less: net loss attributable to noncontrolling interests	(4)		(3)		(3)
Net income attributable to Zoetis Inc.	$	2,344	$	2,114	$	2,037
Denominator
Weighted-average common shares outstanding	461.172		468.891		474.348
Common stock equivalents: stock options, RSUs, DSUs and PSUs	1.097		1.494		2.369
Weighted-average common and potential dilutive shares outstanding	462.269		470.385		476.717
Earnings per share attributable to Zoetis Inc. stockholders—basic	$	5.08	$	4.51	$	4.29
Earnings per share attributable to Zoetis Inc. stockholders—diluted	$	5.07	$	4.49	$	4.27

The number of stock options outstanding under the company's Equity Plan that were excluded from the computation of diluted earnings per share, as the effect would have been antidilutive, were not material for the years ended December 31, 2023, 2022 and 2021.