| Component: (Network and Table) | |
|---|---|
| Network | 2431403 - Disclosure - GEOGRAPHIC AREAS - Long-Lived Assets by Geographic Area (Details) (http://weyerhaeuser.com/role/GeographicAreasLongLivedAssetsByGeographicAreaDetails) |
| Table | Schedule of Revenues from External Customers and Long-Lived Assets [Table] |
| Reporting Entity [Axis] | 0000106535 (http://www.sec.gov/CIK) |
| Revenues from External Customers and Long-Lived Assets [Line Items] | Period [Axis] | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2016-12-31 | 2015-12-31 | 2014-12-31 | ||||||||||
| Geographical [Axis] | Geographical [Axis] | Geographical [Axis] | ||||||||||
| U.S. | Canada | Other foreign countries | Geographical [Domain] | U.S. | Canada | Other foreign countries | Geographical [Domain] | U.S. | Canada | Other foreign countries | Geographical [Domain] | |
Long-lived assets | ||||||||||||