v3.26.1
Acquisitions - Schedule of Business Combination, Pro Forma Information (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Beacon Roofing Supply, Inc.        
Business Combination [Line Items]        
Net sales   $ 2,693   $ 4,614
Net loss   (9)   (144)
Kodiak Building Partners        
Business Combination [Line Items]        
Net sales $ 3,246 2,545 $ 5,507 3,087
Net loss $ (40) $ (38) $ (262) $ (36)