Revenue (Tables)

12 Months Ended

Dec. 31, 2024

Revenue Recognition and Deferred Revenue [Abstract]

Revenue from External Customers by Geographic Areas

Revenue by geographic area

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2024		2023		2022
United States	$	5,074	$	4,555	$	4,313
Australia	319		323		289
Brazil	414		393		330
Canada	277		255		238
Chile	123		140		141
China	270		320		382
France	156		142		126
Germany	225		202		176
Italy	129		121		111
Japan	147		158		173
Mexico	169		162		136
Spain	130		122		118
United Kingdom	314		277		235
Other developed markets	564		512		468
Other emerging markets	865		784		758
	9,176		8,466		7,994
Contract manufacturing & human health	80		78		86
Total Revenue	$	9,256	$	8,544	$	8,080

Revenue from External Customers by Major Species

Revenue by major species

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2024		2023		2022
U.S.
Companion animal	$	4,054	$	3,529	$	3,341
Livestock	1,020		1,026		972
	5,074		4,555		4,313
International
Companion animal	2,224		2,047		1,862
Livestock	1,878		1,864		1,819
	4,102		3,911		3,681
Total
Companion animal	6,278		5,576		5,203
Livestock	2,898		2,890		2,791
Contract manufacturing & human health	80		78		86
Total Revenue	$	9,256	$	8,544	$	8,080

Revenue from External Customers by Species

Revenue by species

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2024		2023		2022
Companion Animal:
Dogs and Cats	$	5,993	$	5,291	$	4,939
Horses	285		285		264
	6,278		5,576		5,203
Livestock:
Cattle	1,531		1,503		1,440
Poultry	527		524		476
Swine	516		543		565
Fish	242		220		212
Sheep and other	82		100		98
	2,898		2,890		2,791
Contract manufacturing & human health	80		78		86
Total Revenue	$	9,256	$	8,544	$	8,080

Schedule of Significant Product Revenues

Revenue by product category

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2024		2023		2022
Parasiticides	$	2,153	$	1,947	$	1,860
Vaccines	1,827		1,771		1,718
Dermatology	1,655		1,427		1,329
Anti-infectives	1,100		1,057		1,081
Pain and sedation	851		602		420
Other pharmaceuticals	658		678		623
Animal health diagnostics	386		376		353
Medicated feed additives	293		354		360
Other non-pharmaceuticals	253		254		250
	9,176		8,466		7,994
Contract manufacturing & human health	80		78		86
Total Revenue	$	9,256	$	8,544	$	8,080