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Revenue (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 603.0 | $ 737.0 | $ 1,773.0 | $ 2,239.0
Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 259.0 | 241.0 | 733.0 | 729.0
OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 197.0 | 349.0 | 605.0 | 1,050.0
EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 105.0 | 110.0 | 303.0 | 329.0
South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 36.0 | 35.0 | 121.0 | 122.0
Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 6.0 | 3.0 | 16.0 | 9.0
Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | (1.0) | 0.0 | (4.0) | 0.0
SmartSide Strand siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 217.0 | 191.0 | 614.0 | 563.0
SmartSide Strand siding [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 213.0 | 188.0 | 600.0 | 546.0
SmartSide Strand siding [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Strand siding [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Strand siding [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 4.0 | 3.0 | 14.0 | 17.0
SmartSide Strand siding [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Strand siding [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Fiber siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 28.0 | 30.0 | 79.0 | 84.0
SmartSide Fiber siding [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 28.0 | 30.0 | 79.0 | 84.0
SmartSide Fiber siding [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Fiber siding [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Fiber siding [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Fiber siding [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
SmartSide Fiber siding [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
CanExel siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 15.0 | 7.0 | 38.0 | 33.0
CanExel siding [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 15.0 | 7.0 | 38.0 | 33.0
CanExel siding [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
CanExel siding [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
CanExel siding [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
CanExel siding [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
CanExel siding [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
OSB - commodity [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 100.0 | 211.0 | 312.0 | 652.0
OSB - commodity [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1.0 | 13.0 | 9.0 | 34.0
OSB - commodity [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 100.0 | 197.0 | 304.0 | 609.0
OSB - commodity [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 1.0 | 3.0 | 9.0
OSB - commodity [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
OSB - commodity [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
OSB - commodity [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues |  | 0.0 | (4.0) | 0.0
OSB - value-add [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 130.0 | 185.0 | 406.0 | 571.0
OSB - value-add [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 22.0
OSB - value-add [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 96.0 | 151.0 | 295.0 | 435.0
OSB - value-add [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 2.0 | 4.0 | 7.0 | 11.0
OSB - value-add [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 32.0 | 30.0 | 105.0 | 103.0
OSB - value-add [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
OSB - value-add [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LVL [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 37.0 | 36.0 | 108.0 | 113.0
LVL [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LVL [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LVL [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 37.0 | 36.0 | 108.0 | 113.0
LVL [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LVL [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LVL [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LSL [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 12.0 | 18.0 | 39.0 | 49.0
LSL [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LSL [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LSL [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 12.0 | 18.0 | 40.0 | 49.0
LSL [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LSL [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
LSL [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
I Joist [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 39.0 | 34.0 | 103.0 | 98.0
I Joist [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
I Joist [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
I Joist [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 39.0 | 34.0 | 103.0 | 98.0
I Joist [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
I Joist [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
I Joist [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Plywood [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 7.0 | 8.0 | 19.0 | 23.0
Plywood [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Plywood [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Plywood [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 7.0 | 8.0 | 19.0 | 23.0
Plywood [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Plywood [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Plywood [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 19.0 | 17.0 | 55.0 | 52.0
Other [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 2.0 | 2.0 | 7.0 | 9.0
Other [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 2.0 | 2.0 | 6.0 | 6.0
Other [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 8.0 | 10.0 | 23.0 | 26.0
Other [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1.0 | 1.0 | 2.0 | 3.0
Other [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Commodity [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 107.0 | 219.0 | 331.0 | 675.0
Commodity [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1.0 | 13.0 | 9.0 | 34.0
Commodity [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 100.0 | 197.0 | 304.0 | 609.0
Commodity [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 7.0 | 9.0 | 22.0 | 32.0
Commodity [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Commodity [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Commodity [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | (1.0) | 0.0 | (4.0) | 0.0
Value-add [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 478.0 | 502.0 | 1,387.0 | 1,512.0
Value-add [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 256.0 | 226.0 | 717.0 | 686.0
Value-add [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 96.0 | 151.0 | 295.0 | 435.0
Value-add [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 90.0 | 91.0 | 257.0 | 271.0
Value-add [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 36.0 | 34.0 | 119.0 | 120.0
Value-add [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | 0.0 | 0.0
Value-add [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 0.0 | 0.0 | (1.0) | 0.0
Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 19.0 | 17.0 | 55.0 | 52.0
Other [Member] | Siding [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 2.0 | 2.0 | 7.0 | 9.0
Other [Member] | OSB [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 2.0 | 2.0 | 6.0 | 6.0
Other [Member] | EWP [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 8.0 | 10.0 | 23.0 | 26.0
Other [Member] | South America [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 1.0 | 1.0 | 2.0 | 3.0
Other [Member] | Other [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | 6.0 | 3.0 | 16.0 | 9.0
Other [Member] | Intersegment [Member] |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenues | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0

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