The Separation and Transactions and Agreements with Pfizer	6 Months Ended
Jun. 28, 2015
Separation Activities and Initial Public Offering [Abstract]
The Separation and Transactions and Agreements with Pfizer	The Separation and Transactions and Agreements with Pfizer Pfizer Inc. (Pfizer) formed Zoetis to acquire, own and operate the animal health business of Pfizer. On June 24, 2013, Pfizer completed an exchange offer (the Exchange Offer) resulting in the full separation of Zoetis from Pfizer and the disposal of Pfizer's entire ownership and voting interest in Zoetis. In the first quarter of 2013, through a series of steps (collectively, the Separation), Pfizer transferred to us its subsidiaries holding substantially all of the assets and liabilities of its animal health business. After the Separation, an initial public offering (IPO) of our common stock was completed. Pfizer retained the net proceeds from the IPO. Zoetis had related party transactions with Pfizer through the completion of the Exchange Offer. As of the completion of the Exchange Offer, Pfizer is no longer a related party. In connection with the IPO, we entered into certain agreements that provide a framework for an ongoing relationship with Pfizer. For additional information regarding activities while Pfizer was a related party, as well as our ongoing agreements with Pfizer, see Note 19. Transactions and Agreements with Pfizer in our 2014 Annual Report on Form 10-K. At June 28, 2015, and December 31, 2014, $19 million and $24 million, respectively, was included in Accounts receivable as receivable from Pfizer, and $34 million and $42 million, respectively, was included in Accounts payable as payable to Pfizer.

The Separation and Transactions and Agreements with Pfizer

Pfizer Inc. (Pfizer) formed Zoetis to acquire, own and operate the animal health business of Pfizer. On June 24, 2013, Pfizer completed an exchange offer (the Exchange Offer) resulting in the full separation of Zoetis from Pfizer and the disposal of Pfizer's entire ownership and voting interest in Zoetis.

In the first quarter of 2013, through a series of steps (collectively, the Separation), Pfizer transferred to us its subsidiaries holding substantially all of the assets and liabilities of its animal health business. After the Separation, an initial public offering (IPO) of our common stock was completed. Pfizer retained the net proceeds from the IPO.

Zoetis had related party transactions with Pfizer through the completion of the Exchange Offer. As of the completion of the Exchange Offer, Pfizer is no longer a related party. In connection with the IPO, we entered into certain agreements that provide a framework for an ongoing relationship with Pfizer. For additional information regarding activities while Pfizer was a related party, as well as our ongoing agreements with Pfizer, see Note 19. Transactions and Agreements with Pfizer in our 2014 Annual Report on Form 10-K.

At June 28, 2015, and December 31, 2014, $19 million and $24 million, respectively, was included in Accounts receivable as receivable from Pfizer, and $34 million and $42 million, respectively, was included in Accounts payable as payable to Pfizer.