CONDENSED CONSOLIDATED STATEMENTS OF INCOME (UNAUDITED) - USD ($) shares in Millions, $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021
Income Statement [Abstract]
Revenue		$ 1,986	$ 1,871
Costs and expenses:
Cost of sales		569	549
Selling, general and administrative expenses		465	409
Research and development expenses		122	118
Amortization of intangible assets		41	40
Restructuring charges and certain acquisition-related costs		2	9
Interest expense, net of capitalized interest		53	57
Other (income)/deductions—net		7	2
Income before provision for taxes on income	[1]	727	687
Provision for taxes on income		133	129
Net income before allocation to noncontrolling interests		594	558
Less: Net loss attributable to noncontrolling interests		(1)	(1)
Net income attributable to Zoetis Inc.		$ 595	$ 559
Earnings per share attributable to Zoetis Inc. stockholders:
Basic (in dollars per share)		$ 1.26	$ 1.18
Diluted (in dollars per share)		$ 1.26	$ 1.17
Weighted-average common shares outstanding:
Basic (in shares)		472.2	475.5
Diluted (in shares)		474.1	477.9
Dividends paid per common share (in dollars per share)		$ 0.325	$ 0.250

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