Timberland Acquisitions (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended				1 Months Ended	12 Months Ended
	Dec. 31, 2013 acquisition	Dec. 31, 2012 acquisition	Dec. 31, 2013 Other timberland acquisitions [Member]	Dec. 31, 2012 Other timberland acquisitions [Member] acre	Dec. 31, 2012 Acquired timberlands in Texas [Member] acre	Dec. 31, 2013 Forest Resources [Member] acre	Dec. 31, 2012 Forest Resources [Member] Acres
Significant Acquisitions and Disposals [Line Items]
Number of acquisitions	4	3
Acquisition date			throughout 2013	throughout 2012	December 2012
Acres of timberlands acquired				25,000	63,000	17,000	88,000
Description			located in Florida, Georgia and Louisiana	located in Alabama, Florida and Texas	Texas
Acquisition purchase price			$ 20	$ 19	$ 88
Terms			funded with cash on hand or through the revolving credit facility	funded with cash on hand	cash on hand
Significant acquisitions and disposals type			asset purchases	asset purchases	asset purchase
Funding from existing revolving credit facility					$ 30