CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	$ 6,365	$ 5,246	$ 5,489
Costs of products sold	4,926	4,121	4,183
Gross margin	1,439	1,125	1,306
Selling expenses	89	99	97
General and administrative expenses	332	259	306
Research and development expenses	19	18	20
Charges for integration and restructuring, closures and asset impairments (Note 17)	170	39	44
Other operating costs (income), net (Note 18)	(41)	52	(148)
Operating income	870	658	987
Equity earnings from joint ventures (Note 8)	22	0	0
Interest income and other	43	36	38
Interest expense, net of capitalized interest	(431)	(341)	(338)
Earnings from continuing operations before income taxes	504	353	687
Income taxes (Note 19)	(89)	58	(71)
Earnings from continuing operations	415	411	616
Earnings from discontinued operations, net of income taxes (Note 3)	612	95	1,210
Net earnings	1,027	506	1,826
Dividends on preference shares	(22)	(44)	(44)
Net earnings attributable to Weyerhaeuser common shareholders	$ 1,005	$ 462	$ 1,782
Basic earnings per share attributable to Weyerhaeuser common shareholders (Note 5):
Continuing operations	$ 0.55	$ 0.71	$ 1.03
Discontinued operations	0.85	0.18	2.17
Net earnings per share	1.40	0.89	3.20
Diluted earnings per share attributable to Weyerhaeuser common shareholders (Note 5):
Continuing operations	0.55	0.71	1.02
Discontinued operations	0.84	0.18	2.16
Net earnings per share	1.39	0.89	3.18
Dividends paid per common share	$ 1.24	$ 1.20	$ 1.02
Weighted average shares outstanding (in thousands) (Note 5):
Basic	718,560	516,371	556,705
Diluted	722,401	519,618	560,899