CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - USD ($) $ in Millions		Total	Common Stock	Treasury Stock		Treasury Stock Share Repurchase Program		Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Equity Attributable to Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2022			501,900,000
Beginning balance at Dec. 31, 2022		$ 4,403	$ 5	$ (4,539)				$ 1,088	$ 8,668	$ (817)	$ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		1,817							1,819		(2)
Other comprehensive loss, net of tax		3								3
Treasury stock, beginning balance (in shares) at Dec. 31, 2022				38,100,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares				5,000,000.0	[1]	700,000	[2]
Share-based compensation awards	[2]	61		$ 34				28	(1)
Treasury stock acquired	[1]	(864)		(864)
Dividends, Common Stock		(346)							(346)
Ending balance (in shares) at Sep. 30, 2023			501,900,000
Ending balance at Sep. 30, 2023		5,074	$ 5	$ (5,369)				1,116	10,140	(814)	(4)
Treasury stock, ending balance (in shares) at Sep. 30, 2023				42,400,000
Beginning balance (in shares) at Jun. 30, 2023			501,900,000
Beginning balance at Jun. 30, 2023		4,621	$ 5	$ (5,126)				1,098	9,543	(895)	(4)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		596							596		0
Other comprehensive loss, net of tax		81								81
Treasury stock, beginning balance (in shares) at Jun. 30, 2023				41,200,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares				1,400,000	[3]	200,000	[4]
Share-based compensation awards	[4]	28		$ 9				18	1
Treasury stock acquired	[3]	(252)		(252)
Ending balance (in shares) at Sep. 30, 2023			501,900,000
Ending balance at Sep. 30, 2023		$ 5,074	$ 5	$ (5,369)				1,116	10,140	(814)	(4)
Treasury stock, ending balance (in shares) at Sep. 30, 2023				42,400,000
Beginning balance (in shares) at Dec. 31, 2023		501,891,243	501,900,000
Beginning balance at Dec. 31, 2023		$ 4,991	$ 5	$ (5,597)				1,133	10,295	(839)	(6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		1,915							1,905		10
Other comprehensive loss, net of tax		(12)								(12)
Deconsolidation of noncontrolling interests		$ (4)									(4)
Treasury stock, beginning balance (in shares) at Dec. 31, 2023		43,523,885		43,500,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares				7,300,000	[1]	500,000	[2]
Share-based compensation awards	[2]	$ 45		$ 15				30	0
Treasury stock acquired	[1]	(1,307)		(1,307)
Dividends, Common Stock		$ (394)							(394)
Ending balance (in shares) at Sep. 30, 2024		501,891,243	501,900,000
Ending balance at Sep. 30, 2024		$ 5,234	$ 5	$ (6,889)				1,163	11,806	(851)	0
Treasury stock, ending balance (in shares) at Sep. 30, 2024		50,341,454		50,300,000
Beginning balance (in shares) at Jun. 30, 2024			501,900,000
Beginning balance at Jun. 30, 2024		$ 4,960	$ 5	$ (6,464)				1,146	11,124	(845)	(6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		692							682		10
Other comprehensive loss, net of tax		(6)								(6)
Deconsolidation of noncontrolling interests		(4)									(4)
Treasury stock, beginning balance (in shares) at Jun. 30, 2024				48,000,000.0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares				2,300,000	[3]	0	[4]
Share-based compensation awards	[4]	19		$ 2				17	0
Treasury stock acquired	[3]	$ (427)		(427)
Ending balance (in shares) at Sep. 30, 2024		501,891,243	501,900,000
Ending balance at Sep. 30, 2024		$ 5,234	$ 5	$ (6,889)				$ 1,163	$ 11,806	$ (851)	$ 0
Treasury stock, ending balance (in shares) at Sep. 30, 2024		50,341,454		50,300,000

[1] Reflects the acquisition of treasury shares in connection with the share repurchase program and includes excise tax accrued on net share repurchases. For additional information, see Note 13. Stockholders’ Equity.

[2] Includes the issuance of shares of Zoetis Inc. common stock and the reacquisition of shares of treasury stock associated with exercises of employee share-based awards. 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 and includes excise tax accrued on net share repurchases. For additional information, see Note 13. Stockholders’ Equity.

[4] Includes the issuance of shares of Zoetis Inc. common stock and the reacquisition of shares of treasury stock associated with exercises of employee share-based awards. 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.