v3.26.3
Selected Segment Data - Schedule of Segment Reporting Information, by Segment (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Net sales $ 691 $ 663 $ 1,929 $ 2,141
Cost of sales (576) (534) (1,584) (1,637)
Selling, general, and administrative expenses (76) (95) (235) (250)
Depreciation and amortization     115 106
Siding        
Segment Reporting [Line Items]        
Net sales 473 443 1,274 1,305
OSB        
Segment Reporting [Line Items]        
Net sales 180 179 530 696
Operating Segments        
Segment Reporting [Line Items]        
Net sales 653 622 1,804 2,001
Reportable segment Adjusted EBITDA 94 90 275 393
Operating Segments | Siding        
Segment Reporting [Line Items]        
Net sales 473 443 1,274 1,305
Cost of sales (336) (301) (889) (890)
Selling, general, and administrative expenses (42) (48) (125) (133)
Depreciation and amortization 23 20 67 60
Other segment items 2 3 5 6
Reportable segment Adjusted EBITDA 119 117 333 348
Operating Segments | OSB        
Segment Reporting [Line Items]        
Net sales 180 179 530 696
Cost of sales (203) (203) (581) (643)
Selling, general, and administrative expenses (16) (18) (49) (52)
Depreciation and amortization 14 14 40 40
Other segment items 1 1 3 4
Reportable segment Adjusted EBITDA (24) (27) (58) 46
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment        
Segment Reporting [Line Items]        
Net sales $ 38 $ 41 $ 125 $ 140