Sale proceeds Proceeds from Divestiture of Businesses Finite-lived intangible assets, accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Accounting Standards Significant Accounting Policies [Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Other current assets Other Current Assets [Member] Restricted cash Restricted Cash, Current Award Timing Predetermined Award Timing Predetermined [Flag] Pain and sedation Pain & Sedation [Member] Pain & Sedation Intangible Assets, gross carrying amount Intangible Assets, Gross (Excluding Goodwill) Indefinite-lived Intangible Assets [Axis] Indefinite-Lived Intangible Assets [Axis] Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Other noncurrent assets Other Noncurrent Assets [Member] Forward-starting interest rate swaps Interest Rate Swap [Member] Other (Income)/Deductions - Net Other Income and Other Expense Disclosure [Text Block] Tabular List, Table Tabular List [Table Text Block] Earnings per share attributable to Zoetis Inc. stockholders: Numerator Earnings Per Share, Basic [Abstract] Recently Adopted Accounting Standards and Recently Issued Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Restructuring Charges and Other Costs Associated with Acquisitions and Divestitures Cost Reduction And Productivity Initiatives And Acquisition Related Costs Disclosure [Text Block] Description of cost-reduction and productivity initiatives associated with a comprehensive plan to integrate acquired operations, generate cost savings and capture synergies across the company; as well as costs incurred in connection with an acquisition. These costs include (i) restructuring activities, including exit and disposal activities, the major types of costs associated with the plan activities and the accrual balance at the end of the period; (ii) integration costs, which represent external, incremental costs directly related to integrating acquired businesses; (iii) implementation costs, which represent external, incremental costs directly related to implementing cost-reduction initiatives prior to acquisition and primarily include expenditures related to system and process standardization and the expansion of shared services; (iv) additional depreciation-asset restructuring, which represents the impact of changes in the estimated useful lives of assets involved in restructuring actions; and (v) transaction costs, representing external costs incurred in connection with an acquisition. Proceeds from sale of business, net of cash sold and working capital adjustments Proceeds from Divestiture of Businesses, Net of Cash Divested Accounts payable Increase (Decrease) in Accounts Payable International International [Member] International [Member] Interest income Interest Income (Expense), Nonoperating Type of Restructuring [Domain] Type of Restructuring [Domain] Goodwill [Line Items] Goodwill [Line Items] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic (in dollars per share) Earnings per share attributable to Zoetis stockholders—basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Maximum total leverage ratio Line of Credit Facility, Covenant Compliance, Maximum Leverage Ratio Line of Credit Facility, Covenant Compliance, Maximum Leverage Ratio Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Commercial Paper Commercial Paper [Member] Collateral received Additional Collateral, Aggregate Fair Value Senior Notes Due 2025 Senior Notes Due 2025 [Member] Senior Notes Due 2025 Restructuring Reserve, Settled without Cash Restructuring Reserve, Settled without Cash Schedule of Stock by Class [Table] Stock, Class of Stock [Table] Other comprehensive (loss)/income, net of tax Other comprehensive (loss)/income, net of tax Other Comprehensive Income (Loss), Net of Tax Schedule of Selected Income Statement Information by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Amounts included in the measurement of lease liabilities: Lease Payments [Abstract] Lease Payments Adjustment to Compensation, Amount Adjustment to Compensation Amount Medicated feed additives Medicated Feed Additives Medicated Feed Additives [Member] Medicated Feed Additives [Member] Other assets Increase (Decrease) in Other Operating Assets Derivative, cash received on hedge Derivative, Cash Received on Hedge Share-based compensation expense Share-Based Payment Arrangement, Noncash Expense Stock options / stock appreciation rights Stock options Share-Based Payment Arrangement, Option [Member] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Dogs and Cats Dogs and Cats [Member] Dogs and Cats [Member] Asset write-offs and asset impairments Asset Impairment Charges Total Zoetis Inc. equity Equity, Attributable to Parent Other comprehensive income/(loss), net of tax(a): Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Share-based compensation expense—direct Share-Based Payment Arrangement, Expense Common stock, shares authorized Common Stock, Shares Authorized Hedging Designation [Domain] Hedging Designation [Domain] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Total liabilities and equity Liabilities and Equity Animal health diagnostics Animal Health Diagnostics [Member] Animal Health Diagnostics [Member] Benefit Plans Actuarial Gains/(Losses) Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Livestock Livestock [Member] Livestock [Member] Liabilities and Equity Liabilities and Equity [Abstract] Operational Efficiency Operational Efficiency [Member] Operational Efficiency [Member] Cover page. Cover [Abstract] Maximum Maximum [Member] Parasiticides Parasiticides [Member] Parasiticides [Member] Share-based compensation-related proceeds, net of taxes paid on withholding shares Share-based compensation-related proceeds, net of taxes paid on withholding shares Share-based compensation-related proceeds, net of taxes paid on withholding shares Less: Net income/(loss) attributable to noncontrolling interests Less: Net income/(loss) attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Certain significant items, Depreciation and Amortization Certain Significant Reconciling Items Included in Depreciation, Depletion and Amortization Certain Significant Reconciling Items Included in Depreciation, Depletion and Amortization Accounting Policies [Abstract] Accounting Policies [Abstract] Stock repurchase program, remaining number of shares authorized to be repurchased Share Repurchase Program, Remaining Authorized, Number of Shares Finite-lived intangible assets, identifiable intangible assets, less accumulated amortization Finite-Lived Intangible Assets, Net Revenue Recognition and Deferred Revenue [Abstract] Revenue Recognition and Deferred Revenue [Abstract] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Treasury Stock Treasury Stock, Common [Member] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Amortization of Intangible Assets Purchase accounting adjustments, Depreciation and Amortization Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Intangibles Foreign Currency Fair Value Hedge Derivative [Line Items] Foreign Currency Fair Value Hedge Derivative [Line Items] Excise tax accrued on net share repurchases, not paid Excise Tax Accrued on Net Share Repurchased, Not Paid Excise Tax Accrued on Net Share Repurchased, Not Paid Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Capacity of commercial paper program Short-term Debt, Maximum Borrowing Capacity Short-term Debt, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before provision for taxes on income Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Anti-infectives Anti-infective Products [Member] Anti-infective Products [Member] Other noncurrent liabilities Other Liabilities, Noncurrent Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Number of regional segments Number of Regional Segments Number of Regional Segments Net proceeds from sale of assets Proceeds from Sale of Property, Plant, and Equipment Proceeds from issuance of long-term debt—senior notes, net of discount Proceeds from Issuance of Debt Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Share-based compensation expense capitalized to inventory, less than Share-Based Payment Arrangement, Amount Capitalized Operating Segments Operating Segments Operating Segments [Member] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Current portion of long-term debt Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount Less: Comprehensive income/(loss) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Comprehensive income attributable to Zoetis Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Kristin Peck Trading Arrangement, Common Stock [Member] Kristin Peck Trading Arrangement, Common Stock Horses Horses [Member] Horses [Member] Disposal Group Name [Domain] Disposal Group Name [Domain] Name Measure Name Restructuring accrual balance Restructuring accrual balance Restructuring Reserve Other taxes payable Accrued Income Taxes, Noncurrent Number of countries in which entity markets products Number of Countries in which Entity Operates Business Combination, Acquisition And Divesture Related Costs Business Combination, Acquisition And Divesture Related Costs Business Combination, Acquisition And Divesture Related Costs Class of Stock [Line Items] Class of Stock [Line Items] Noncurrent deferred tax liabilities Deferred Income Tax Liabilities, Net Document Fiscal Period Focus Document Fiscal Period Focus Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Other tax accounts, net Increase (Decrease) in Accrued Taxes Payable Award Timing Method Award Timing Method [Text Block] Litigation Case [Domain] Litigation Case [Domain] Vaccines Vaccines [Member] Vaccines [Member] Award Type [Axis] Award Type [Axis] Currency Translation Adjustment Net Unrealized Gain/(Losses) Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Income Tax Contingency [Table] Income Tax Contingency [Table] Legal Entity [Axis] Legal Entity [Axis] Total assets Assets Trading Symbol Trading Symbol Geographical [Domain] Geographical [Domain] Geographical [Domain] 3.000% 2017 senior notes due 2027 Senior Notes 3.000% Due 2027 [Member] Senior Notes 3.000% Due 2027 Entity Address, City or Town Entity Address, City or Town Short-term Debt, Type [Domain] Short-Term Debt, Type [Domain] Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Supplemental cash flow information Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] Exit costs Business Exit Costs Effect of exchange-rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Noncurrent deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Inventories Inventory Disclosure [Text Block] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Decrease in short-term borrowings, net Proceeds from (Repayments of) Short-Term Debt RSUs / DSUs Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Income Statement Location [Domain] Statement of Income Location, Balance [Domain] Employee termination costs, net Severance Costs Deconsolidation of noncontrolling interests Noncontrolling Interest, Decrease from Deconsolidation Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company 2028 Long-Term Debt, Maturity, Year Three Accrued expenses Restructuring Reserve, Current Research and development expenses Research and Development Expense (Excluding Acquired in Process Cost) Dividends paid per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Lease obligations obtained in exchange for right-of-use assets - operating Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Swine Swine [Member] Swine [Member] Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] PeerCompanies Peer Companies [Member] Peer Companies [Member] Foreign exchange derivative instruments Other Comprehensive Income (Loss), Derivative, Excluded Component, Increase (Decrease), before Adjustments and Tax Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Restructuring Reserve [Roll Forward] Restructuring Reserve [Roll Forward] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Total indefinite-lived intangible assets Indefinite-Lived Intangible Assets (Excluding Goodwill) Net loss on sale of business, excluding transaction costs Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Common stock, shares outstanding Common Stock, Shares, Outstanding Utilization and other Restructuring Reserve, Utilization And Other Adjustment to restructuring reserve resulting from utilization and foreign currency translation. 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Revenue from External Customer [Line Items] Accumulated goodwill impairment losses Goodwill, Impaired, Accumulated Impairment Loss Other Performance Measure, Amount Other Performance Measure, Amount Payments of Debt Issuance Costs Payments of Debt Issuance Costs Entity Address, State or Province Entity Address, State or Province Financing cash flows - finance leases Finance Lease, Principal Payments Poultry Poultry [Member] Poultry [Member] Dividends, Common Stock Dividends, Common Stock Euro Member Countries, Euro Euro Member Countries, Euro Number of core animal species Number of Core Animal Species Marketed Number of Core Animal Species Marketed Total current liabilities Liabilities, Current Kristin Peck Trading Arrangement, Common Stock, Upon Exercise Of Stock Options [Member] Kristin Peck Trading Arrangement, Common Stock, Upon Exercise Of Stock Options Other current liabilities Other Current Liabilities [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] 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Already Posted, Aggregate Fair Value Mexico MEXICO