Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Numerator
Net income before allocation to noncontrolling interests	$ 2,111	$ 2,034	$ 1,636
Less: net loss attributable to noncontrolling interests	(3)	(3)	(2)
Net income attributable to Zoetis Inc.	$ 2,114	$ 2,037	$ 1,638
Denominator
Weighted-average common shares outstanding	468,891	474,348	475,502
Common stock equivalents: stock options, RSUs, DSUs and PSUs	1,494	2,369	3,067
Weighted-average common and potential dilutive shares outstanding	470,385	476,717	478,569
Earnings per share attributable to Zoetis Inc. stockholders—basic (in dollars per share)	$ 4.51	$ 4.29	$ 3.44
Earnings per share attributable to Zoetis stockholders—diluted (in dollars per share)	$ 4.49	$ 4.27	$ 3.42