Segment Information - Income Statement Narrative (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenues		$ 9,256	$ 8,544	$ 8,080
Segment Reconciling Items | Zoetis Initiatives
Segment Reporting Information [Line Items]
Restructuring and Other Cost Productivity Charges		43	4
International Segment | Operating Segments
Segment Reporting Information [Line Items]
Revenues	[1]	4,102	3,911	3,681
International Segment | Euro Member Countries, Euro | Operating Segments
Segment Reporting Information [Line Items]
Revenues		$ 937	$ 853	$ 774

[1] Operating expenses primarily consisted of field selling, advertising and promotions, other marketing expenses, and freight and logistics costs. (c) Revenue denominated in euros was $937 million in 2024, $853 million in 2023 and $774 million in 2022.