v3.25.2
Revenue (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Disaggregation of Revenue [Line Items]        
Net sales $ 755 $ 814 $ 1,478 $ 1,539
Siding        
Disaggregation of Revenue [Line Items]        
Net sales 460 415 862 776
OSB        
Disaggregation of Revenue [Line Items]        
Net sales 250 351 517 664
LPSA        
Disaggregation of Revenue [Line Items]        
Net sales 43 46 95 93
Other        
Disaggregation of Revenue [Line Items]        
Net sales 2 2 4 5
Value-add        
Disaggregation of Revenue [Line Items]        
Net sales 643 655 1,237 1,234
Value-add | Siding        
Disaggregation of Revenue [Line Items]        
Net sales 458 413 857 772
Value-add | OSB        
Disaggregation of Revenue [Line Items]        
Net sales 143 197 286 371
Value-add | LPSA        
Disaggregation of Revenue [Line Items]        
Net sales 42 45 94 90
Value-add | Other        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Value-add | Siding Solutions        
Disaggregation of Revenue [Line Items]        
Net sales 463 417 870 783
Value-add | Siding Solutions | Siding        
Disaggregation of Revenue [Line Items]        
Net sales 458 413 857 772
Value-add | Siding Solutions | OSB        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Value-add | Siding Solutions | LPSA        
Disaggregation of Revenue [Line Items]        
Net sales 5 4 13 11
Value-add | Siding Solutions | Other        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Value-add | OSB - Structural Solutions        
Disaggregation of Revenue [Line Items]        
Net sales 180 238 367 451
Value-add | OSB - Structural Solutions | Siding        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Value-add | OSB - Structural Solutions | OSB        
Disaggregation of Revenue [Line Items]        
Net sales 143 197 286 371
Value-add | OSB - Structural Solutions | LPSA        
Disaggregation of Revenue [Line Items]        
Net sales 37 41 81 79
Value-add | OSB - Structural Solutions | Other        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Commodity | OSB - commodity        
Disaggregation of Revenue [Line Items]        
Net sales 104 149 224 283
Commodity | OSB - commodity | Siding        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Commodity | OSB - commodity | OSB        
Disaggregation of Revenue [Line Items]        
Net sales 104 149 224 283
Commodity | OSB - commodity | LPSA        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Commodity | OSB - commodity | Other        
Disaggregation of Revenue [Line Items]        
Net sales 0 0 0 0
Other | Other products        
Disaggregation of Revenue [Line Items]        
Net sales 8 10 17 22
Other | Other products | Siding        
Disaggregation of Revenue [Line Items]        
Net sales 2 2 5 4
Other | Other products | OSB        
Disaggregation of Revenue [Line Items]        
Net sales 3 4 7 9
Other | Other products | LPSA        
Disaggregation of Revenue [Line Items]        
Net sales 1 1 1 3
Other | Other products | Other        
Disaggregation of Revenue [Line Items]        
Net sales $ 2 $ 2 $ 4 $ 5