Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 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 (in dollars per share)	$ 5.08	$ 4.51	$ 4.29
Earnings per share attributable to Zoetis stockholders—diluted (in dollars per share)	$ 5.07	$ 4.49	$ 4.27