Revenue (Tables)

12 Months Ended

Dec. 31, 2020

Revenue Recognition and Deferred Revenue [Abstract]

Revenue from External Customers by Geographic Areas

Revenue by geographic area

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2020		2019		2018
United States	$	3,557	$	3,203	$	2,877
Australia	207		196		189
Brazil	258		293		295
Canada	210		206		203
Chile	100		91		76
China	266		200		211
France	118		117		130
Germany	159		153		147
Italy	90		112		104
Japan	177		158		149
Mexico	116		117		100
Spain	112		114		110
United Kingdom	178		198		181
Other developed markets	388		370		361
Other emerging markets	656		647		634
	6,592		6,175		5,767
Contract manufacturing & human health	83		85		58
Total Revenue	$	6,675	$	6,260	$	5,825

Revenue from External Customers by Major Species

Revenue by major species

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2020		2019		2018
U.S.
Companion animal	$	2,391	$	1,984	$	1,608
Livestock	1,166		1,219		1,269
	3,557		3,203		2,877
International
Companion animal	1,261		1,161		1,005
Livestock	1,774		1,811		1,885
	3,035		2,972		2,890
Total
Companion animal	3,652		3,145		2,613
Livestock	2,940		3,030		3,154
Contract manufacturing & human health	83		85		58
Total Revenue	$	6,675	$	6,260	$	5,825

Revenue from External Customers by Species

Revenue by species

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2020		2019		2018
Companion Animal:
Dogs and Cats	$	3,437	$	2,950	$	2,445
Horses	215		195		168
	3,652		3,145		2,613
Livestock:
Cattle	1,558		1,654		1,754
Swine	621		611		663
Poultry	537		559		522
Fish	148		134		132
Sheep and other	76		72		83
	2,940		3,030		3,154
Contract manufacturing & human health	83		85		58
Total Revenue	$	6,675	$	6,260	$	5,825

Schedule of Significant Product Revenues

Revenue by product category

	Year Ended December 31,
(MILLIONS OF DOLLARS)	2020		2019		2018
Vaccines	$	1,476	$	1,483	$	1,488
Anti-infectives	1,206		1,254		1,280
Parasiticides	1,173		966		836
Dermatology	941		770		607
Other pharmaceuticals	821		780		765
Medicated feed additives	460		470		485
Animal health diagnostics	305		268		136
Other non-pharmaceuticals	210		184		170
	6,592		6,175		5,767
Contract manufacturing & human health	83		85		58
Total Revenue	$	6,675	$	6,260	$	5,825