XML 55 R45.htm IDEA: XBRL DOCUMENT v3.7.0.1
MERGER WITH PLUM CREEK Unaudited Pro Forma Information (Details) - Plum Creek
$ / shares in Units, $ in Millions
3 Months Ended
Mar. 31, 2016
USD ($)
$ / shares
Business Acquisition [Line Items]  
Net sales | $ $ 1,561
Net earnings from continuing operations attributable to Weyerhaeuser common shareholders | $ $ 144
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, basic | $ / shares $ 0.18
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, diluted | $ / shares $ 0.18