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Committments and Contingent Liabilities (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Loss Contingencies [Line Items] |  |  |
Loss Contingency Accrual | $ 25 | $ 14 |
Loss Contingency Accrual, Period Increase (Decrease) | (6) | (2) |
Loss Contingency, Accrual, Current | 1 | 1 |
Loss Contingency, Accrual, Noncurrent | 24 | 13 |
Indemnity for liabilities other than environmental | 15 |  |
Indemnities for liabilities arising out of pre-closing operations | 5 |  |
SEC Schedule, 12-09, Reserve, Environmental Cost [Member] |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency Accrual | 25 | 13 | $ 10
Loss Contingency Accrual, Period Increase (Decrease) | (7) | (2) |
Payments for Environmental Liabilities | 1 | 1 |
Hardboard Siding Reserves |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency Accrual | 0 | 0 |
Environmental Reserves |  |  |
Loss Contingencies [Line Items] |  |  |
Loss Contingency Accrual | $ 25 | $ 14 |

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- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
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- Definition Cash outflows made during the period for environmental remediation activities. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585 + Details
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