Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2020

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in the Carrying Amount of Goodwill

The components of, and changes in, the carrying amount of goodwill follow:

(MILLIONS OF DOLLARS)	U.S.		International		Total
Balance, December 31, 2018	$	1,265	$	1,254	$	2,519
Additions / Adjustments(a)	102		—		102
Other(b)	—		(29)		(29)
Balance, December 31, 2019	$	1,367	$	1,225	$	2,592
Additions / Adjustments(a)	58		17		75
Other(b)	—		27		27
Balance, December 31, 2020	$	1,425	$	1,269	$	2,694

(a)     For 2020, primarily relates to the acquisitions of Performance Livestock Analytics, Fish Vet Group and Virtual Recall. See Note 5. Acquisitions and Divestitures.

    For 2019, primarily relates to the acquisitions of Platinum Performance, Phoenix Lab and ZNLabs. See Note 5. Acquisitions and Divestitures.    

(b)     Includes adjustments for foreign currency translation.

Components of Identifiable Intangible Assets

The components of identifiable intangible assets follow:

	As of December 31, 2020						As of December 31, 2019
					Identifiable						Identifiable
	Gross				Intangible Assets,		Gross				Intangible Assets,
	Carrying		Accumulated		Less Accumulated		Carrying		Accumulated		Less Accumulated
(MILLIONS OF DOLLARS)	Amount		Amortization		Amortization		Amount		Amortization		Amortization
Finite-lived intangible assets:
Developed technology rights(a)	$	1,968	$	(809)	$	1,159	$	1,938	$	(657)	$	1,281
Brands and tradenames(a)	427		(243)		184		424		(223)		201
Other(a)	474		(306)		168		441		(249)		192
Total finite-lived intangible assets	2,869		(1,358)		1,511		2,803		(1,129)		1,674
Indefinite-lived intangible assets:
Brands and tradenames	104		—		104		104		—		104
In-process research and development	88		—		88		105		—		105
Product rights	7		—		7		7		—		7
Total indefinite-lived intangible assets	199		—		199		216		—		216
Identifiable intangible assets	$	3,068	$	(1,358)	$	1,710	$	3,019	$	(1,129)	$	1,890

(a)     In 2020, additions included intangible assets associated with the acquisitions of Performance Livestock Analytics, Virtual Recall, Ethos Diagnostic Science and Fish Vet Group. See Note 5. Acquisitions and Divestitures.

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense

The annual amortization expense expected for the years 2021 through 2025 is as follows:

(MILLIONS OF DOLLARS)	2021		2022		2023		2024		2025
Amortization expense	$	203	$	191	$	183	$	164	$	149

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

The components of identifiable intangible assets follow:

	As of December 31, 2020						As of December 31, 2019
					Identifiable						Identifiable
	Gross				Intangible Assets,		Gross				Intangible Assets,
	Carrying		Accumulated		Less Accumulated		Carrying		Accumulated		Less Accumulated
(MILLIONS OF DOLLARS)	Amount		Amortization		Amortization		Amount		Amortization		Amortization
Finite-lived intangible assets:
Developed technology rights(a)	$	1,968	$	(809)	$	1,159	$	1,938	$	(657)	$	1,281
Brands and tradenames(a)	427		(243)		184		424		(223)		201
Other(a)	474		(306)		168		441		(249)		192
Total finite-lived intangible assets	2,869		(1,358)		1,511		2,803		(1,129)		1,674
Indefinite-lived intangible assets:
Brands and tradenames	104		—		104		104		—		104
In-process research and development	88		—		88		105		—		105
Product rights	7		—		7		7		—		7
Total indefinite-lived intangible assets	199		—		199		216		—		216
Identifiable intangible assets	$	3,068	$	(1,358)	$	1,710	$	3,019	$	(1,129)	$	1,890

(a)     In 2020, additions included intangible assets associated with the acquisitions of Performance Livestock Analytics, Virtual Recall, Ethos Diagnostic Science and Fish Vet Group. See Note 5. Acquisitions and Divestitures.