FINANCIAL STATEMENT SCHEDULE - Valuation and Quantifying Accounts (Details) (Accounts receivable, USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Forest Products
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	$ 8	$ 12	$ 7
Charged to income	1	2	11
(Deductions from) additions to reserve	(3)	(6)	(6)
Balance at end of period	6	8	12
Real Estate
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at beginning of period	3	2	4
Charged to income	(1)	1	0
(Deductions from) additions to reserve	0	0	(2)
Balance at end of period	$ 2	$ 3	$ 2