CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020		Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 1,548	$ 1,547	$ 3,082		$ 3,002
Costs and expenses:
Cost of sales	451	465	910		983
Selling, general and administrative expenses	393	406	782		775
Research and development expenses	111	111	218		213
Amortization of intangible assets	40	39	80		77
Restructuring charges and certain acquisition-related costs	8	22	17		27
Interest expense, net of capitalized interest	58	55	111		111
Other (income)/deductions—net	5	(6)	(15)		(20)
Income before provision for taxes on income	482	455	979	[1]	836	[1]
Provision for taxes on income	106	84	180		153
Net income before allocation to noncontrolling interests	376	371	799		683
Less: Net loss attributable to noncontrolling interests	(1)	0	(1)		0
Net income attributable to Zoetis Inc.	$ 377	$ 371	$ 800		$ 683
Earnings per share attributable to Zoetis Inc. stockholders:
Basic (in dollars per share)	$ 0.79	$ 0.77	$ 1.68		$ 1.43
Diluted (in dollars per share)	$ 0.79	$ 0.77	$ 1.67		$ 1.41
Weighted-average common shares outstanding:
Basic (in shares)	475.3	478.8	475.4		479.2
Diluted (in shares)	478.1	482.3	478.6		482.7
Dividends paid per common share (in dollars per share)	$ 0.200	$ 0.164	$ 0.400		$ 0.328

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