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Goodwill
 9 Months Ended
Sep. 30, 2025
Goodwill and Intangible Assets Disclosure [Abstract]  
Goodwill
6. Goodwill
The changes in the carrying amount of goodwill were:
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Carrying value, December 31, 20245,8033,0702,18811,061
Acquisitions1,0641951401,399
Foreign currency translation adjustment159195219
Divestitures––(3)(3)
Carrying value, September 30, 20256,8823,2742,52012,676
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Carrying value, December 31, 20234,4172,7521,9899,158
Acquisitions1,4263333852,144
Foreign currency translation adjustment(40)(12)(114)(166)
Impairment charge for the period––(72)(72)
Divestitures–(3)(201)(204)
Reclassified as held for sale––201201
Carrying value, December 31, 20245,8033,0702,18811,061
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Carrying value, December 31, 20234,4172,7521,9899,158
Acquisitions1,2701602781,708
Foreign currency translation adjustment(11)15040
Divestitures––(201)(201)
Reclassified from held for sale––201201
Carrying value, September 30, 20245,6762,9132,31710,906
There were no charges for goodwill impairment in the nine months ended September 30, 2025, and September 30, 2024.