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Business Description	12 Months Ended
Business Description	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Business Description	etis Inc. (including its subsidiaries, collectively, Zoetis, the company, we, us or our) is a global leader in the discovery, development, manufacture and commercialization of animal health medicines, vaccines and diagnostic products with a focus on both livestock and companion animals. We organize and operate our business in two geographic regions: the United States (U.S.) and International. We directly market our products in approximately 45 countries across North America, Europe, Africa, Asia, Australia and South America. Our products are sold in more than 100 countries, including developed markets and emerging markets. We have a diversified business, marketing products across eight core species: cattle, swine, poultry, sheep and fish (collectively, livestock) and dogs, cats and horses (collectively, companion animals); and within seven major product categories: vaccines, anti-infectives, parasiticides, other pharmaceutical products, dermatology, medicated feed additives and animal health diagnostics. We were incorporated in Delaware in July 2012 and prior to that the company was a business unit of Pfizer Inc. (Pfizer).