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Goodwill and Other Intangibles (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill Activity by Segment
The following table summarizes goodwill activity by segment:
 
PharmaceuticalAnimal HealthAll OtherTotal
Balance January 1, 2020
$14,825 $3,192 $52 $18,069 
Acquisitions742 105 — 847 
Divestitures— — (54)(54)
Other (1)
47 (29)20 
Balance December 31, 2020 (2)
15,614 3,268 — 18,882 
Acquisitions2,431 5  2,436 
Other (1)
(48)(6) (54)
Balance December 31, 2021 (2)
$17,997 $3,267 $ $21,264 
(1) Includes cumulative translation adjustments on goodwill balances.
(2) Accumulated goodwill impairment losses were $531 million at both December 31, 2021 and 2020.
Other Intangibles
Other acquired intangibles at December 31 consisted of:
 20212020
  
Gross
Carrying
Amount
Accumulated
Amortization
NetGross
Carrying
Amount
Accumulated
Amortization
Net
Products and product rights$23,671 $15,776 $7,895 $20,928 $16,138 $4,790 
IPR&D9,281  9,281 3,228 — 3,228 
Trade names2,882 493 2,389 2,882 352 2,530 
Licenses and other6,604 3,236 3,368 6,199 2,646 3,553 
 $42,438 $19,505 $22,933 $33,237 $19,136 $14,101