Earnings per Share

3 Months Ended

Mar. 31, 2025

Earnings Per Share [Abstract]

Earnings per Share

14. Earnings per Share

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

	Three Months Ended
(MILLIONS OF DOLLARS AND SHARES, EXCEPT PER SHARE DATA)	March 31,
	2025		2024
Numerator
Net income before allocation to noncontrolling interests	$	631	$	599
Less: Net income/(loss) attributable to noncontrolling interests	—		—
Net income attributable to Zoetis Inc.	$	631	$	599
Denominator
Weighted-average common shares outstanding	447.6		458.0
Common stock equivalents: stock options, RSUs, PSUs and DSUs	0.4		0.8
Weighted-average common and potential dilutive shares outstanding	448.0		458.8
Earnings per share attributable to Zoetis Inc. stockholders—basic	$	1.41	$	1.31
Earnings per share attributable to Zoetis Inc. stockholders—diluted	$	1.41	$	1.31

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 three months ended March 31, 2025 and 2024.