Revenue (Tables)

12 Months Ended

Dec. 31, 2023

Revenue Recognition and Deferred Revenue [Abstract]

Revenue from External Customers by Geographic Areas

Revenue by geographic area

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2023		2022		2021
United States	$	4,555	$	4,313	$	4,042
Australia	323		289		259
Brazil	393		330		312
Canada	255		238		232
Chile	140		141		136
China	320		382		357
France	142		126		132
Germany	202		176		183
Italy	121		111		115
Japan	158		173		186
Mexico	162		136		133
Spain	122		118		128
United Kingdom	277		235		234
Other developed markets	512		468		467
Other emerging markets	784		758		778
	8,466		7,994		7,694
Contract manufacturing & human health	78		86		82
Total Revenue	$	8,544	$	8,080	$	7,776

Revenue from External Customers by Major Species

Revenue by major species

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2023		2022		2021
U.S.
Companion animal	$	3,529	$	3,341	$	2,990
Livestock	1,026		972		1,052
	4,555		4,313		4,042
International
Companion animal	2,047		1,862		1,699
Livestock	1,864		1,819		1,953
	3,911		3,681		3,652
Total
Companion animal	5,576		5,203		4,689
Livestock	2,890		2,791		3,005
Contract manufacturing & human health	78		86		82
Total Revenue	$	8,544	$	8,080	$	7,776

Revenue from External Customers by Species

Revenue by species

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2023		2022		2021
Companion Animal:
Dogs and Cats	$	5,291	$	4,939	$	4,426
Horses	285		264		263
	5,576		5,203		4,689
Livestock:
Cattle	1,503		1,440		1,557
Swine	543		565		659
Poultry	524		476		507
Fish	220		212		187
Sheep and other	100		98		95
	2,890		2,791		3,005
Contract manufacturing & human health	78		86		82
Total Revenue	$	8,544	$	8,080	$	7,776

Schedule of Significant Product Revenues

Revenue by product category

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2023		2022		2021
Parasiticides	$	1,947	$	1,860	$	1,635
Vaccines	1,771		1,718		1,673
Dermatology	1,427		1,329		1,180
Other pharmaceuticals	1,280		1,043		966
Anti-infectives	1,057		1,081		1,215
Animal health diagnostics	376		353		374
Medicated feed additives	354		360		420
Other non-pharmaceuticals	254		250		231
	8,466		7,994		7,694
Contract manufacturing & human health	78		86		82
Total Revenue	$	8,544	$	8,080	$	7,776