v3.26.1
Basis of Presentation - Schedule of Changes to Quarterly Results (Details) - USD ($)
$ / shares in Units, $ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Revenue $ 2,468 $ 2,474 [1] $ 4,730 $ 4,672 [2]
Income before provision for taxes on income 866 912 [1] 1,624 [3] 1,685 [2],[3]
Provision for taxes on income 175 186 [1] 332 357 [2]
Net income attributable to Zoetis Inc. $ 691 $ 726 [1] $ 1,292 $ 1,328 [2]
Earnings per share attributable to Zoetis stockholders—basic (in dollars per share) $ 1.65 $ 1.63 [1] $ 3.08 $ 2.98 [2]
Earnings per share attributable to Zoetis stockholders—diluted (in dollars per share) $ 1.65 $ 1.63 [1] $ 3.08 $ 2.97 [2]
As previously reported        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Revenue   $ 2,460   $ 4,680
Income before provision for taxes on income   902   1,712
Provision for taxes on income   184   363
Net income attributable to Zoetis Inc.   $ 718   $ 1,349
Earnings per share attributable to Zoetis stockholders—basic (in dollars per share)   $ 1.61   $ 3.02
Earnings per share attributable to Zoetis stockholders—diluted (in dollars per share)   $ 1.61   $ 3.02
Increase/ (decrease)        
New Accounting Pronouncements or Change in Accounting Principle [Line Items]        
Revenue   $ 14   $ (8)
Income before provision for taxes on income   10   (27)
Provision for taxes on income   2   (6)
Net income attributable to Zoetis Inc.   $ 8   $ (21)
Earnings per share attributable to Zoetis stockholders—basic (in dollars per share)   $ 0.02   $ (0.04)
Earnings per share attributable to Zoetis stockholders—diluted (in dollars per share)   $ 0.02   $ (0.05)
[1] See Note 2. Basis of Presentation for further detail regarding the Fiscal Year Alignment.
[2] See Note 2. Basis of Presentation for further detail regarding the Fiscal Year Alignment.
[3] Defined as income before provision for taxes on income.