CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Income Statement [Abstract]
Revenue		$ 2,400	$ 2,388	$ 7,080	$ 6,939
Costs and expenses:
Cost of sales		683	701	1,954	2,012
Selling, general and administrative expenses		579	565	1,759	1,693
Research and development expenses		170	167	499	500
Amortization of intangible assets		32	35	97	107
Restructuring charges and certain acquisition and divestiture-related costs		4	5	34	51
Interest expense, net of capitalized interest		58	57	165	174
Other (income)/deductions—net		(13)	(16)	(27)	1
Income before provision for taxes on income	[1]	887	874	2,599	2,401
Provision for taxes on income		166	182	529	486
Net income before allocation to noncontrolling interests		721	692	2,070	1,915
Less: Net income/(loss) attributable to noncontrolling interests		0	10	0	10
Net income attributable to Zoetis Inc.		$ 721	$ 682	$ 2,070	$ 1,905
Earnings per share attributable to Zoetis Inc. stockholders:
Basic (in dollars per share)		$ 1.63	$ 1.51	$ 4.65	$ 4.18
Diluted (in dollars per share)		$ 1.63	$ 1.50	$ 4.65	$ 4.18
Weighted-average common shares outstanding:
Basic (in shares)		442.9	452.9	445.2	455.4
Diluted (in shares)		443.2	453.5	445.6	456.1
Dividends paid per common share (in dollars per share)		$ 0	$ 0	$ 1.000	$ 0.864

[1] Defined as income before provision for taxes on income.