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Segment information (Tables)
 9 Months Ended
Sep. 30, 2025
Segment Reporting [Abstract]  
Schedule of Segment Reporting Information, by Segment
The key performance measures and segment expenses for the Company’s reportable segments were:
Three months ended September 30, 2025
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Revenue5,6371,7973,63511,069
Less:
    Labor1,0363726712,079
    Energy costs 23331258522
    Other segment items (i)2,8139621,9985,773
Adjusted EBITDA1,5554327082,695

Three months ended September 30, 2024
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Revenue5,2991,7573,45910,515
Less:
    Labor9783676301,975
    Energy costs 22029258507
    Other segment items (i)2,6171,0061,9565,579
Adjusted EBITDA1,4843556152,454

Nine months ended September 30, 2025
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Revenue12,3895,63810,00428,031
Less:
    Labor2,7381,1321,9765,846
    Energy costs 581957351,411
    Other segment items (i)6,2153,1915,71515,121
Adjusted EBITDA2,8551,2201,5785,653

Nine months ended September 30, 2024
in $ millionsAmericas Materials SolutionsAmericas Building SolutionsInternational SolutionsTotal
Revenue11,9075,5669,22926,702
Less:
    Labor2,6041,0881,7875,479
    Energy costs 556937221,371
    Other segment items (i)6,0553,2465,39714,698
Adjusted EBITDA2,6921,1391,3235,154
(i)    The nature of other segment items is similar for each segment and primarily includes raw materials, haulage costs, subcontractor costs and other Selling, general and administrative expenses. The composition of other segment items is such that at a segment level none of these items is individually significant in determining segment performance.

Three months endedNine months ended
September 30September 30
in $ millions2025202420252024
Adjusted EBITDA2,6952,4545,6535,154
Depreciation, depletion, amortization and impairment(601)(467)(1,606)(1,288)
Interest income3733104112
Interest expense(209)(164)(590)(452)
Gain (loss) on divestitures and investments (i)459(38)242
Pension income excluding current service cost component (i)51143
Other interest, net (i)3271
Substantial acquisition-related costs(13)(23)(13)(45)
Income from operations before income tax expense and income from equity method investments1,9211,8953,5313,727
(i)    Gain (loss) on divestitures and investments, pension income excluding current service cost component and other interest, net have been included in Other nonoperating income (expense), net in the Condensed Consolidated Statements of Income.

Depreciation, depletion, amortization and impairment for each of the segments were:
Three months endedNine months ended
September 30September 30
in $ millions2025202420252024
Americas Materials Solutions260213715611
Americas Building Solutions9985287249
International Solutions242 169 604 428 
Total depreciation, depletion, amortization and impairment601 467 1,606 1,288 

The segment assets were:
September 30December 31September 30
in $ millions202520242024
Assets
Americas Materials Solutions25,98821,47421,695
Americas Building Solutions9,9889,0499,006
International Solutions17,11915,01115,963
Total assets for reportable segments53,09545,53446,664

Additions to property, plant and equipment and intangible assets for each of the segments were:
Nine months ended
September 30
in $ millions20252024
Property, plant and equipment and intangible asset additions (i)
Americas Materials Solutions829769
Americas Building Solutions401336
International Solutions778611
Total property, plant and equipment and intangible asset additions2,0081,716
(i) Property, plant and equipment and intangible asset additions exclude asset retirement cost additions.