CONSOLIDATED BALANCE SHEET (USD $) In Millions, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents	$ 639	$ 898
Total assets	12,510	12,592
Liabilities
Commitments and contingencies (Note 8)
Total liabilities	8,234	8,479
Weyerhaeuser shareholders’ interest:
Common shares: $1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 546,572,906 and 542,392,642 shares	683	678
Other capital	4,827	4,731
Retained earnings	264	219
Cumulative other comprehensive loss (Note 9)	(1,530)	(1,558)
Total Weyerhaeuser shareholders’ interest	4,244	4,070
Noncontrolling interests	32	43
Total equity	4,276	4,113
Total liabilities and equity	12,510	12,592
Forest Products:
Assets
Cash and cash equivalents	635	893
Receivables, less allowances of $4 and $3	628	468
Receivables for taxes	65	95
Inventories (Note 4)	596	531
Prepaid expenses	89	83
Deferred tax assets	189	65
Total current assets	2,202	2,135
Property and equipment, less accumulated depreciation of $6,350 and $6,350	2,785	2,859
Construction in progress	56	50
Timber and timberlands at cost, less depletion charged to disposals	3,954	3,961
Investments in and advances to equity affiliates	191	192
Goodwill	40	40
Deferred tax assets	70	189
Other assets	351	358
Assets held by variable interest entities	804	805
Total assets	10,453	10,589
Liabilities
Current maturities of long-term debt (Note 7)	184	340
Accounts payable	357	329
Accrued liabilities (Note 6)	531	561
Total current liabilities	1,072	1,230
Long-term debt (Note 7)	3,842	3,842
Long-term debt (Note 7)	4,026	4,182
Deferred income taxes	46	0
Deferred pension and other postretirement benefits	1,856	1,930
Other liabilities	455	499
Liabilities (nonrecourse to the company) held by variable interest entities	680	681
Total liabilities	7,951	8,182
Real Estate:
Assets
Cash and cash equivalents	4	5
Receivables, less discounts and allowances of $4 and $4	75	72
Real estate in process of development and for sale	724	658
Land being processed for development	897	904
Investments in and advances to equity affiliates	20	21
Deferred tax assets	204	202
Other assets	100	94
Assets held by variable interest entities	33	47
Total assets	2,057	2,003
Liabilities
Long-term debt (Note 7)	109	109
Other liabilities	172	187
Liabilities (nonrecourse to the company) held by variable interest entities	2	1
Total liabilities	$ 283	$ 297