v3.25.4
Goodwill and Other Intangible Assets
 12 Months Ended
Dec. 31, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets Goodwill and Other Intangible Assets
The following table presents the changes in the carrying amount of goodwill (in millions):
Optical CommunicationsDisplaySpecialty MaterialsLife SciencesHemlock and Emerging Growth BusinessesTotal
Balance as of December 31, 2023$904 $119 $151 $607 $599 $2,380 
Acquired goodwill 11    11 
Foreign currency translation
   adjustment and other		(14)(9)(14)(1)10 (28)
Balance as of December 31, 2024$890 $121 $137 $606 $609 $2,363 
Acquired goodwill (1)
    98 98 
Foreign currency translation
   adjustment and other		17 2  3 6 28 
Balance as of December 31, 2025$907 $123 $137 $609 $713 $2,489 
(1)The Company acquired a U.S. solar module manufacturing facility. Refer to Note 3 (Acquisition) to the consolidated financial statements for additional information.
As of December 31, 2025 and 2024, Corning’s gross goodwill balance was $9.0 billion and $8.9 billion, respectively, and accumulated impairment losses were $6.5 billion. Accumulated impairment losses were generated primarily through goodwill impairments related to the Optical Communications segment.
Other Intangible Assets, Net
Other intangible assets, net consisted of the following (in millions):
 December 31,
 20252024
 GrossAccumulated amortizationNetGrossAccumulated amortizationNet
Amortized intangible assets:
Patents, trademarks & trade names$449 $319 $130 $407 $266 $141 
Customer lists and other (1)
1,4118845271,391780611
Other intangible assets, net$1,860 $1,203 $657 $1,798 $1,046 $752 
(1)Other consists of intangible assets related to developed technologies and intellectual know-how.
Corning’s amortized intangible assets are primarily related to Optical Communications, Life Sciences and certain businesses within Hemlock and Emerging Growth Businesses. The net carrying amount of intangible assets decreased during the year, primarily driven by amortization of $110 million.
Annual amortization expense is expected to be approximately $93 million, $92 million, $85 million, $73 million and $66 million for years 2026 through 2030, respectively.