Segment Information - Income Statement Narrative (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Revenues		$ 8,544	$ 8,080	$ 7,776
CHINA
Segment Reporting Information [Line Items]
Revenues		320	382	357
Segment Reconciling Items | Zoetis Initiatives
Segment Reporting Information [Line Items]
Restructuring and Other Cost Productivity Charges		43	4	24
International Segment | Operating Segments
Segment Reporting Information [Line Items]
Revenues	[1]	3,911	3,681	3,652
International Segment | Euro Member Countries, Euro | Operating Segments
Segment Reporting Information [Line Items]
Revenues		$ 853	$ 774	$ 814

[1] Revenue denominated in euros was $853 million in 2023, $774 million in 2022 and $814 million in 2021.