Other (Income)/Deductions - Net (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Royalty-related income		$ (1)	$ (3)	$ (3)	$ (7)
Interest income		(13)	(1)	(20)	(4)
Identifiable intangible asset impairment charges		1	0	1	0
Other asset impairment charges		0	3	0	3
Foreign currency loss	[1]	11	8	36	20
Other, net		(1)	(3)	(8)	1
Other (income)/deductions—net		(3)	4	6	16
Reconciling Items | Zoetis Initiatives
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net (gain)/loss on sale of assets		$ 0	$ 0	$ 0	$ 3

[1] Primarily driven by costs related to hedging and exposures to certain emerging and developed market currencies.