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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Goodwill [Line Items] |  |  |
Goodwill | $ 30 | $ 16 | $ 16
Goodwill, Acquired During Period | 14 |  |
Intangible Assets, Net (Excluding Goodwill) | 61 | 51 | 55
Finite-lived Intangible Assets Acquired | 15 |  |
Amortization of Intangible Assets | (5) | (4) | (3)
Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months | 5 |  |
Licensing Agreements [Member] |  |  |
Goodwill [Line Items] |  |  |
Intangible Assets, Net (Excluding Goodwill) | 38 | 41 | 44
Finite-lived Intangible Assets Acquired | 0 |  |
Amortization of Intangible Assets | (3) | (3) |
Technology-Based Intangible Assets [Member] |  |  |
Goodwill [Line Items] |  |  |
Intangible Assets, Net (Excluding Goodwill) | 20 | 10 | 11
Finite-lived Intangible Assets Acquired | 12 |  |
Amortization of Intangible Assets | (2) | (1) |
Trademarks [Member] |  |  |
Goodwill [Line Items] |  |  |
Intangible Assets, Net (Excluding Goodwill) | 3 | 0 | 0
Finite-lived Intangible Assets Acquired | 3 |  |
Amortization of Intangible Assets | 0 | 0 |
Siding |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 4 | 0 | 0
Goodwill, Acquired During Period | 4 |  |
OSB |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 16 | 16 | 16
Goodwill, Other Increase (Decrease) | 0 |  |
Other |  |  |
Goodwill [Line Items] |  |  |
Goodwill | 10 | $ 0 | $ 0
Goodwill, Acquired During Period | $ 10 |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 + Details
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