DISCONTINUED OPERATIONS - Additional Information (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014 Real Estate Divestiture	Sep. 30, 2014 Real Estate Divestiture	Jun. 30, 2014 Real Estate Divestiture
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Common stock in exchange for the distribution of shares of Weyerhaeuser Real Estate Company (WRECO) to our shareholders	58,813,151
Unsecured and unsubordinated senior debt obligations issued by WRECO							$ 900
Net proceeds from issuance of debt						870
Proceeds utilized by WRECO to repay intercompany debt and interest to Weyerhaeuser Company					744
Cash on hand					5
Adjustment amount payable pursuant to the terms of the transaction agreement					32
Cash			707	0	707
Net gain on divestiture	$ 972	$ 0	$ 972	$ 0	$ 972