CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - USD ($) $ in Millions		Total	Common Stock	[1]	Treasury Stock	[1]	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Equity Attributable to Noncontrolling Interests
Beginning balance at Dec. 31, 2015		$ 1,091	$ 5		$ (203)		$ 1,012	$ 876	$ (622)	$ 23
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		204						204
Other comprehensive income/(loss)		3							4	(1)
Share-based compensation awards	[2]	13			34		(6)	(15)
Treasury stock acquired	[3]	(76)			(76)
Employee benefit plan contribution from Pfizer Inc.	[4]	1					1
Dividends declared		(49)						(49)
Ending balance at Apr. 03, 2016		1,187	5		(245)		1,007	1,016	(618)	22
Beginning balance at Dec. 31, 2016		1,499	5		(421)		1,024	1,477	(598)	12
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		239						238		1
Other comprehensive income/(loss)		46							46
Consolidation of a noncontrolling interest		13								13
Share-based compensation awards	[2]	14			36		(10)	(12)
Treasury stock acquired	[3]	(125)			(125)
Employee benefit plan contribution from Pfizer Inc.	[4]	1					1
Dividends declared		(52)						(52)
Ending balance at Apr. 02, 2017		$ 1,635	$ 5		$ (510)		$ 1,015	$ 1,651	$ (552)	$ 26

[1] As of April 2, 2017, and April 3, 2016, there were 491,328,479 and 496,416,809 outstanding shares of common stock, respectively, and 10,562,764 and 5,475,026 shares of treasury stock, respectively. Treasury stock is recognized at the cost to reacquire the shares. For additional information, see Note 13. Stockholders' Equity.

[2] Includes the issuance of shares of Zoetis Inc. common stock and the reissuance of treasury stock in connection with the vesting of employee share-based awards. Upon reissuance of treasury stock, differences between the proceeds from reissuance and the cost of the treasury stock that result in gains are recorded in Additional paid-in capital. Losses are recorded in Additional paid-in capital to the extent that they can offset previously recorded gains. If no such credit exists, the differences are recorded in Retained earnings. Also includes the reacquisition of shares of treasury stock associated with the vesting of employee share-based awards to satisfy tax withholding requirements. For additional information, see Note 12. Share-Based Payments and Note. 13. Stockholders' Equity.

[3] Reflects the acquisition of treasury shares in connection with the share repurchase program. For additional information, see Note 13. Stockholders' Equity.

[4] Represents contributed capital from Pfizer Inc. associated with service credit continuation for certain Zoetis Inc. employees in Pfizer Inc.'s U.S. qualified defined benefit and U.S. retiree medical plans. See Note 11. Benefit Plans.