CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Statement [Abstract]
Revenue		$ 2,052	$ 1,948	$ 4,038	$ 3,819
Costs and expenses:
Cost of sales		625	568	1,194	1,117
Selling, general and administrative expenses		529	495	994	904
Research and development expenses		135	120	257	238
Amortization of intangible assets		37	41	78	81
Restructuring charges and certain acquisition-related costs		1	21	3	30
Interest expense, net of capitalized interest		53	57	106	114
Other (income)/deductions—net		2	10	9	12
Income before provision for taxes on income	[1]	670	636	1,397	1,323
Provision for taxes on income		141	125	274	254
Net income before allocation to noncontrolling interests		529	511	1,123	1,069
Less: Net loss attributable to noncontrolling interests		0	(1)	(1)	(2)
Net income attributable to Zoetis Inc.		$ 529	$ 512	$ 1,124	$ 1,071
Earnings per share attributable to Zoetis Inc. stockholders:
Basic (in dollars per share)		$ 1.13	$ 1.08	$ 2.39	$ 2.25
Diluted (in dollars per share)		$ 1.12	$ 1.07	$ 2.38	$ 2.24
Weighted-average common shares outstanding:
Basic (in shares)		470.0	474.8	471.1	475.2
Diluted (in shares)		471.5	477.0	472.8	477.5
Dividends paid per common share (in dollars per share)		$ 0.325	$ 0.250	$ 0.650	$ 0.500

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