v3.26.1
Segment information - Schedule of Capital Expenditures (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Segment Reporting Information [Line Items]    
Total capital expenditures $ 272 $ 211
Building Materials    
Segment Reporting Information [Line Items]    
Total capital expenditures 203 184
Building Envelope    
Segment Reporting Information [Line Items]    
Total capital expenditures $ 69 $ 27