CONDENSED CONSOLIDATED STATEMENTS OF EQUITY (UNAUDITED) - USD ($) $ in Millions		Total	Common Stock		Treasury Stock		Treasury Stock Share Repurchase Program	[3]	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Equity Attributable to Noncontrolling Interests
Beginning balance (in shares) at Dec. 31, 2023	[1]		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		1,223								1,223		0
Other comprehensive (loss)/income, net of tax		(6)									(6)
Treasury stock, beginning balance (in shares) at Dec. 31, 2023	[1]				43,500,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares	[1]				5,000,000.0	[2]	500,000
Share-based compensation awards	[3]	26			$ 13				13	0
Treasury stock acquired	[2]	(880)			(880)
Dividends, Common Stock		(394)								(394)
Ending balance (in shares) at Jun. 30, 2024	[1]		501,900,000
Ending balance at Jun. 30, 2024		4,960	$ 5		$ (6,464)				1,146	11,124	(845)	(6)
Treasury stock, ending balance (in shares) at Jun. 30, 2024	[1]				48,000,000.0
Beginning balance (in shares) at Mar. 31, 2024	[1]		501,900,000
Beginning balance at Mar. 31, 2024		5,052	$ 5		$ (5,928)				1,126	10,696	(841)	(6)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		624								624		0
Other comprehensive (loss)/income, net of tax		(4)									(4)
Treasury stock, beginning balance (in shares) at Mar. 31, 2024	[1]				44,900,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares	[1]				3,200,000	[2]	100,000
Share-based compensation awards	[3]	22			$ 2				20	0
Treasury stock acquired	[2]	(538)			(538)
Dividends, Common Stock		(196)								(196)
Ending balance (in shares) at Jun. 30, 2024	[1]		501,900,000
Ending balance at Jun. 30, 2024		$ 4,960	$ 5		$ (6,464)				1,146	11,124	(845)	(6)
Treasury stock, ending balance (in shares) at Jun. 30, 2024	[1]				48,000,000.0
Beginning balance (in shares) at Dec. 31, 2024		501,891,243	501,900,000	[1]
Beginning balance at Dec. 31, 2024		$ 4,770	$ 5		$ (7,445)				1,182	11,968	(940)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		1,349								1,349		0
Other comprehensive (loss)/income, net of tax		$ 63									63
Treasury stock, beginning balance (in shares) at Dec. 31, 2024		53,418,170			53,400,000	[1]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares	[1]				4,800,000	[2]	300,000
Share-based compensation awards	[3]	$ 28			$ 7				21	0
Treasury stock acquired	[2]	(788)			(788)
Dividends, Common Stock		$ (445)								(445)
Ending balance (in shares) at Jun. 30, 2025		501,891,243	501,900,000	[1]
Ending balance at Jun. 30, 2025		$ 4,977	$ 5		$ (8,226)				1,203	12,872	(877)	0
Treasury stock, ending balance (in shares) at Jun. 30, 2025		57,945,650			57,900,000	[1]
Beginning balance (in shares) at Mar. 31, 2025	[1]		501,900,000
Beginning balance at Mar. 31, 2025		$ 4,655	$ 5		$ (7,888)				1,180	12,375	(1,017)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest		718								718		0
Other comprehensive (loss)/income, net of tax		140									140
Treasury stock, beginning balance (in shares) at Mar. 31, 2025	[1]				55,800,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Treasury stock acquired, shares	[1]				2,100,000	[2]	0
Share-based compensation awards	[3]	26			$ 3				23	0
Treasury stock acquired	[2]	(341)			(341)
Dividends, Common Stock		$ (221)								(221)
Ending balance (in shares) at Jun. 30, 2025		501,891,243	501,900,000	[1]
Ending balance at Jun. 30, 2025		$ 4,977	$ 5		$ (8,226)				$ 1,203	$ 12,872	$ (877)	$ 0
Treasury stock, ending balance (in shares) at Jun. 30, 2025		57,945,650			57,900,000	[1]

[1] Shares may not add due to rounding.

[2] 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.

[3] 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.