RELATED PARTIES - Schedule of Changes in Deposit of Timberlands (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Beginning Balance	$ 426
Initial cash receipt upon contribution of timberlands to Twin Creeks Venture	0	$ 440	$ 0
Ending Balance	0	426
Twin Creeks Venture
Related Party Transaction [Line Items]
Beginning Balance	426	0
Initial cash receipt upon contribution of timberlands to Twin Creeks Venture		440
Lease payments to Twin Creeks Venture	(8)	(17)
Distributions from Twin Creeks Venture	2	3
Recognition of contributed timberlands	(420)
Ending Balance	$ 0	$ 426	$ 0