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Goodwill and Other Intangible Assets
 3 Months Ended
Mar. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill and Other Intangible Assets GOODWILL AND OTHER INTANGIBLE ASSETS
The following is a rollforward of the Company’s goodwill ($ in millions):
Balance, December 31, 2022$39,752 
Adjustments due to finalization of purchase price allocations(4)
Foreign currency translation and other108 
Balance, March 31, 2023$39,856 
The carrying value of goodwill by segment is summarized as follows ($ in millions):
March 31, 2023December 31, 2022
Biotechnology$22,167 $22,087 
Life Sciences8,319 8,314 
Diagnostics6,883 6,875 
Environmental & Applied Solutions2,487 2,476 
Total$39,856 $39,752 
The Company has not identified any “triggering” events which indicate an impairment of goodwill in the first quarter of 2023.
The Company reviews identified intangible assets for impairment whenever events or changes in circumstances indicate that the related carrying amounts may not be recoverable. The Company has not identified any impairment triggers which resulted in impairments of intangible assets in the first quarter of 2023.