v3.26.1
Segment information - Schedule of Reconciliation of Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Mar. 31, 2026
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2026
Jun. 30, 2025
Segment Reporting [Line Items]            
Total Revenues $ 3,494 $ 2,181 $ 3,218 $ 2,089 $ 5,675 $ 5,307
Cost of revenues: 2,501 1,973 2,277 1,852 4,474 4,129
Depreciation, depletion, accretion and amortization (257) (237) (226) (220) (494) (444)
Interest income 5   22   13 36
Interest expense (94)   (143)   (180) (275)
Acquisition and integration-related costs (10)   (17)   (28) (21)
Litigation-related settlements (costs) 5   (4)   3 (4)
Loss on impairments (2)   (2)   (2) (2)
Restructuring and other costs (5)   (9)   (8) (9)
Spin-off and separation-related costs (6)   (17)   (10) (25)
Unallocated corporate costs (44)   (72)   (100) (102)
Other non-operating income (expense), net (1) 2 1 1 1 2
Total reconciling items (409)   (467)   (805) (844)
Income before income tax expense and income from equity method investments 621 $ (148) 537 $ (122) 473 415
Operating Segments            
Segment Reporting [Line Items]            
Total Revenues 3,494   3,218   5,675 5,307
Cost of revenues: 2,272   2,063   4,024 3,698
Total other segment expenses 192   151   373 350
Total Segment Adjusted EBITDA 1,030   1,004   1,278 1,259
Building Materials | Operating Segments            
Segment Reporting [Line Items]            
Total Revenues 2,445   2,259   3,948 3,600
Cost of revenues: 1,554   1,436   2,798 2,560
Total other segment expenses 98   69   190 154
Total Segment Adjusted EBITDA 793   754   960 886
Building Envelope            
Segment Reporting [Line Items]            
Total Revenues 1,049   959   1,727 1,707
Building Envelope | Operating Segments            
Segment Reporting [Line Items]            
Total Revenues 1,049   959   1,727 1,707
Cost of revenues: 718   627   1,226 1,138
Total other segment expenses 94   82   183 196
Total Segment Adjusted EBITDA $ 237   $ 250   $ 318 $ 373