CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS Items Included in Our Integration and Restructuring, Closure and Asset Impairment Charges (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Charges related to integration and restructuring
Termination benefits	$ 7
Total charges for integration and restructuring, closures and impairments	13	$ 111
Plum Creek
Charges related to integration and restructuring
Termination benefits	6	45
Acceleration of share-based compensation related to qualifying terminations	0	19
Acceleration of pension benefits related to qualifying terminations	0	5
Professional services	3	39
Other integration and restructuring costs	3	2
Total integration and restructuring charges related to our merger with Plum Creek	12	110
Other
Charges related to integration and restructuring
Termination benefits	1	0
Other closures and restructuring costs	0	1
Total charges for integration and restructuring, closures and impairments	$ 1	$ 1