Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of inventory reserves for last-in first-out (LIFO) and other inventory valuation methods.

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The cash inflow from sale of buildings.

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Segment Information (Details) $ in Millions	12 Months Ended
Segment Information (Details) $ in Millions	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Segment Reporting Information [Line Items]
Inventory Adjustments			$ 69
Number of Operating Segments \| segment	2
Assets	$ 13,900	$ 13,609
Proceeds from Sale of Buildings		20	20
CEO Transition Costs [Member]
Segment Reporting Information [Line Items]
Restructuring and Other Cost Productivity Charges		16	10
Impairment Charges [Member]
Segment Reporting Information [Line Items]
Restructuring and Other Cost Productivity Charges	46	$ 37
Segment Reconciling Items \| Zoetis Initiatives
Segment Reporting Information [Line Items]
Restructuring and Other Cost Productivity Charges	$ 21		$ 7