10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 __________________________________________________

FORM 10-Q

 __________________________________________________

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE QUARTERLY PERIOD ENDED MARCH 31, 2015

or

o TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

FOR THE TRANSITION PERIOD FROMTO

COMMISSION FILE NUMBER: 1-4825

 __________________________________________________ 

WEYERHAEUSER COMPANY

 __________________________________________________ 

Washington	91-0470860
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification Number)
33663 Weyerhaeuser Way South Federal Way, Washington	98063-9777
(Address of principal executive offices)	(Zip Code)

(253) 924-2345

(Registrant’s telephone number, including area code)

 __________________________________________________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    x  Yes    o  No

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    x  Yes    o  No

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  x    Accelerated filer  o    Non-accelerated filer  o    Smaller reporting company  o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). o  Yes    x  No

As of April 24, 2015, 517,745,024 shares of the registrant’s common stock ($1.25 par value) were outstanding.

TABLE OF CONTENTS

PART I	FINANCIAL INFORMATION	1
ITEM 1.	FINANCIAL STATEMENTS:
	CONSOLIDATED STATEMENT OF OPERATIONS	1
	CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME	2
	CONSOLIDATED BALANCE SHEET	3
	CONSOLIDATED STATEMENT OF CASH FLOWS	4
	INDEX FOR NOTES TO CONSOLIDATED FINANCIAL STATEMENTS	5
	NOTES TO CONSOLIDATED FINANCIAL STATEMENTS	6
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS (“MD&A”)	18
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	32
ITEM 4.	CONTROLS AND PROCEDURES	32
PART II	OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	32
ITEM 1A.	RISK FACTORS	32
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	32
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	NA
ITEM 4.	MINE SAFETY DISCLOSURES	NA
ITEM 5.	OTHER INFORMATION	NA
ITEM 6.	EXHIBITS	33
	SIGNATURE	33

FINANCIAL INFORMATION

WEYERHAEUSER COMPANY

CONSOLIDATED STATEMENT OF OPERATIONS

(UNAUDITED)

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	MARCH 2015			MARCH 2014
Net sales	$	1,721		$	1,736
Cost of products sold	1,385			1,361
Gross margin	336			375
Selling expenses	28			28
General and administrative expenses	74			88
Research and development expenses	5			7
Charges for restructuring, closures and impairments (Note 12)	14			19
Other operating costs (income), net (Note 13)	15			(75		)
Operating income	200			308
Interest income and other	3			9
Interest expense, net of capitalized interest	(83		)	(83		)
Earnings before income taxes	120			234
Income taxes (Note 14)	(19		)	(50		)
Earnings from continuing operations	101			184
Earnings from discontinued operations, net of income taxes (Note 3)	—			10
Net earnings	101			194
Dividends on preference shares	(11		)	(11		)
Net earnings attributable to Weyerhaeuser common shareholders	$	90		$	183
Earnings per share attributable to Weyerhaeuser common shareholders, basic and diluted (Note 4):
Continuing operations	$	0.17		$	0.29
Discontinued operations	—			0.02
Net earnings per share	$	0.17		$	0.31
Dividends paid per share	$	0.29		$	0.22
Weighted average shares outstanding (in thousands) (Note 4):
Basic	523,426			584,915
Diluted	527,423			589,312

See accompanying Notes to Consolidated Financial Statements.

1

WEYERHAEUSER COMPANY

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME

(UNAUDITED)

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Consolidated net earnings	$	101		$	194
Other comprehensive income (loss):
Foreign currency translation adjustments	(47		)	(22		)
Actuarial gains, net of tax expense of $26 and $15	62			36
Prior service costs, net of tax benefit of $0 and $18	(2		)	(29		)
Unrealized gains on available-for-sale securities	1			—
Total other comprehensive income (loss)	14			(15		)
Comprehensive income	$	115		$	179

See accompanying Notes to Consolidated Financial Statements.

2

WEYERHAEUSER COMPANY

CONSOLIDATED BALANCE SHEET

(UNAUDITED)

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015			DECEMBER 31, 2014
ASSETS
Current assets:
Cash and cash equivalents	$	1,158		$	1,580
Receivables, less allowances of $3 and $3	539			525
Receivables for taxes	23			25
Inventories (Note 5)	645			595
Prepaid expenses	95			80
Deferred tax assets	192			228
Total current assets	2,652			3,033
Property and equipment, less accumulated depreciation of $6,304 and $6,324	2,524			2,623
Construction in progress	171			131
Timber and timberlands at cost, less depletion charged to disposals	6,552			6,530
Investments in and advances to equity affiliates	183			188
Goodwill	40			40
Deferred tax assets	3			8
Other assets	269			289
Restricted financial investments held by variable interest entities	615			615
Total assets	$	13,009		$	13,457
LIABILITIES AND EQUITY
Current liabilities:
Accounts payable	$	319		$	331
Accrued liabilities (Note 7)	533			587
Total current liabilities	852			918
Long-term debt (Note 8)	4,891			4,891
Long-term debt (nonrecourse to the company) held by variable interest entities	511			511
Deferred income taxes	195			206
Deferred pension and other postretirement benefits	1,249			1,319
Other liabilities	284			308
Total liabilities	7,982			8,153
Commitments and contingencies (Note 9)
Equity:
Mandatory convertible preference shares, series A: $1.00 par value; $50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,800,000 shares	14			14
Common shares: $1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 518,735,116 and 524,474,315 shares	648			656
Other capital	4,299			4,519
Retained earnings	1,445			1,508
Cumulative other comprehensive loss (Note 10)	(1,379		)	(1,393		)
Total equity	5,027			5,304
Total liabilities and equity	$	13,009		$	13,457

See accompanying Notes to Consolidated Financial Statements.

3

WEYERHAEUSER COMPANY

CONSOLIDATED STATEMENT OF CASH FLOWS(UNAUDITED) 

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Cash flows from operations:
Net earnings	$	101		$	194
Noncash charges (credits) to earnings:
Depreciation, depletion and amortization	123			126
Deferred income taxes, net	13			36
Pension and other postretirement benefits (Note 6)	10			(47		)
Share-based compensation expense	8			9
Charges for impairment of assets	13			—
Net gains on dispositions of assets(1)	(16		)	(25		)
Foreign exchange transaction losses (Note 13)	29			14
Change in:
Receivables less allowances	(16		)	(1		)
Receivable for taxes	2			67
Inventories	(57		)	(88		)
Real estate and land	—			(72		)
Prepaid expenses	(11		)	3
Accounts payable and accrued liabilities	(91		)	(80		)
Deposits on land positions and other assets	—			12
Pension and postretirement contributions / benefit payments	(20		)	(33		)
Other	(11		)	(6		)
Net cash from operations	77			109
Cash flows from investing activities:
Property and equipment	(71		)	(51		)
Timberlands reforestation	(18		)	(14		)
Acquisition of timberlands	(32		)	—
Proceeds from sale of assets	2			19
Cash from investing activities	(119		)	(46		)
Cash flows from financing activities:
Cash dividends on common shares	(152		)	(129		)
Change in book overdrafts	—			(6		)
Exercises of stock options	21			15
Repurchase of common stock (Note 4)	(253		)	—
Other	4			2
Cash from financing activities	(380		)	(118		)
Net change in cash and cash equivalents	(422		)	(55		)
Cash and cash equivalents at beginning of period	1,580			835
Cash and cash equivalents at end of period	$	1,158		$	780
Cash paid (received) during the period for:
Interest, net of amount capitalized of $1 and $5	$	114		$	101
Income taxes	$	1		$	(50	)

(1) Includes gains on timberland exchanges.

See accompanying Notes to Consolidated Financial Statements.

4

INDEX FOR NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1:	BASIS OF PRESENTATION	6
NOTE 2:	BUSINESS SEGMENTS	7
NOTE 3:	DISCONTINUED OPERATIONS	8
NOTE 4:	NET EARNINGS PER SHARE	9
NOTE 5:	INVENTORIES	10
NOTE 6:	PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS	11
NOTE 7:	ACCRUED LIABILITIES	12
NOTE 8:	FAIR VALUE OF FINANCIAL INSTRUMENTS	12
NOTE 9:	LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES	13
NOTE 10:	CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)	14
NOTE 11:	SHARE-BASED COMPENSATION	14
NOTE 12:	CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS	16
NOTE 13:	OTHER OPERATING COSTS (INCOME), NET	17
NOTE 14:	INCOME TAXES	17

5

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

FOR THE QUARTERS ENDED MARCH 31, 2015 AND 2014

NOTE 1:BASIS OF PRESENTATION

We are a corporation that has elected to be taxed as a real estate investment trust (REIT). We expect to derive most of our REIT income from investments in timberlands, including the sale of standing timber. REIT income can be distributed to shareholders without first paying corporate level tax, substantially eliminating the double taxation on income. A significant portion of our timberland segment earnings receives this favorable tax treatment. We are, however, subject to corporate taxes on built-in-gains (the excess of fair market value over tax basis at January 1, 2010) on sales of real property (other than standing timber) held by the REIT during the first 10 years following the REIT conversion. We continue to be required to pay federal corporate income taxes on earnings of our Taxable REIT Subsidiary (TRS), which principally includes our manufacturing businesses and the portion of our Timberlands segment income included in the TRS.

Our consolidated financial statements provide an overall view of our results and financial condition. They include our accounts and the accounts of entities we control, including:

• majority-owned domestic and foreign subsidiaries and

• variable interest entities in which we are the primary beneficiary.

They do not include our intercompany transactions and accounts, which are eliminated, and noncontrolling interests are presented as a separate component of equity.

We account for investments in and advances to unconsolidated equity affiliates using the equity method, with taxes provided on undistributed earnings. This means that we record earnings and accrue taxes in the period earnings are recognized by our unconsolidated equity affiliates.

Throughout these Notes to Consolidated Financial Statements, unless specified otherwise, references to “Weyerhaeuser,” “we” and “our” refer to the consolidated company.

The accompanying unaudited Consolidated Financial Statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods presented. Except as otherwise disclosed in these Notes to Consolidated Financial Statements, such adjustments are of a normal, recurring nature. The Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission pertaining to interim financial statements; certain disclosures normally provided in accordance with accounting principles generally accepted in the United States have been omitted. These Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2014. Results of operations for interim periods should not be regarded as necessarily indicative of the results that may be expected for the full year.

RECLASSIFICATIONS

We have reclassified certain balances and results from the prior year to be consistent with our 2015 reporting. This makes year-to-year comparisons easier. Our reclassifications had no effect on net earnings or equity. Our reclassifications present the results of operations discontinued in 2014 separately on our Consolidated Statement of Operations and in the related footnotes. Note 3: Discontinued Operations provides information about our discontinued operations.

NEW ACCOUNTING PRONOUNCEMENTS

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09, a comprehensive new revenue recognition model that requires an entity to recognize revenue to depict the transfer of goods or services to customers at an amount that reflects the consideration it expects to receive in exchange for those goods or services. We plan to adopt the standard when required and may use either the retrospective or cumulative effect transition method. We are evaluating the impact that ASU 2014-09 will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor determined the effect of the standard on our ongoing financial reporting.

6

In April 2015, FASB issued ASU 2015-03, which amends the presentation of debt issuance costs on the consolidated balance sheet. Under the new guidance, debt issuance costs are presented as a direct deduction from the carrying amount of the debt liability rather than as an asset. The new guidance is effective retrospectively for fiscal periods starting after December 15, 2015 and early adoption is permitted. We expect to adopt ASU 2015-03 on January 1, 2016 and have determined that its adoption will not have a material impact on our consolidated financial statements and related disclosures at that time.

NOTE 2:BUSINESS SEGMENTS

We are principally engaged in growing and harvesting timber and manufacturing, distributing and selling products made from trees. Our principal business segments are:

• Timberlands – which includes logs, timber, minerals, oil and gas, and international wood products;

• Wood Products – which includes softwood lumber, engineered wood products, structural panels and building materials distribution; and

• Cellulose Fibers – which includes pulp, liquid packaging board and an equity interest in a newsprint joint venture.

We have disposed of Weyerhaeuser Real Estate Company (WRECO) that is excluded from the segment results below. See Note 3: Discontinued Operations for information regarding our discontinued operations.

7

An analysis and reconciliation of our business segment information to the respective information in the Consolidated Financial Statements is as follows:

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Sales to unaffiliated customers:
Timberlands	$	351		$	377
Wood Products	923			898
Cellulose Fibers	447			461
	1,721			1,736
Intersegment sales:
Timberlands	228			238
Wood Products	19			19
	247			257
Total sales	1,968			1,993
Intersegment eliminations	(247		)	(257		)
Total	$	1,721		$	1,736
Net contribution to earnings:
Timberlands	$	162		$	164
Wood Products	62			64
Cellulose Fibers	33			54
	257			282
Unallocated Items(1)	(54		)	35
Net contribution to earnings from discontinued operations	—			16
Net contribution to earnings	203			333
Interest expense, net of capitalized interest (continuing and discontinued operations)	(83		)	(83		)
Income before income taxes (continuing and discontinued operations)	120			250
Income taxes (continuing and discontinued operations)	(19		)	(56		)
Net earnings	101			194
Dividends on preference shares	(11		)	(11		)
Net earnings attributable to Weyerhaeuser common shareholders	$	90		$	183

(1) Unallocated Items are gains or charges not related to or allocated to an individual operating segment. They include a portion of items such as: share-based compensation, pension and postretirement costs, foreign exchange transaction gains and losses associated with financing and the elimination of intersegment profit in inventory and the LIFO reserve.

NOTE 3:DISCONTINUED OPERATIONS

On July 7, 2014, we completed the divestiture of our homebuilding and real estate development business, pursuant to which WRECO became a wholly-owned subsidiary of TRI Pointe Homes, Inc. (TRI Pointe). At that time we distributed shares of WRECO to our shareholders in exchange for 59 million shares of our common stock and received net cash proceeds of $707 million. This transactions is referred to as the “Real Estate Divestiture”. Prior to the distribution of WRECO shares to our shareholders, WRECO was a wholly-owned subsidiary of Weyerhaeuser. Concurrent with the distribution to shareholders, WRECO ceased being a subsidiary. Discontinued operations relates to WRECO which was previously reported under the Real Estate segment and Unallocated Items.

8

The following table summarizes the components of net sales and net earnings from discontinued operations.

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2014
Net sales from discontinued operations	$	248
Income from operations	$	16
Income taxes	(6		)
Net earnings from discontinued operations	$	10

NOTE 4:NET EARNINGS PER SHARE

Our basic and diluted earnings per share attributable to Weyerhaeuser shareholders were:

• $0.17 during first quarter 2015; and

• $0.31 during first quarter 2014.

Basic earnings per share is net earnings available to common shareholders divided by the weighted average number of our outstanding common shares, including stock equivalent units where there is no circumstance under which those shares would not be issued.

Diluted earnings per share is net earnings available to common shareholders divided by the sum of the:

• weighted average number of our outstanding common shares and

• the effect of our outstanding dilutive potential common shares.

Dilutive potential common shares can include:

• outstanding stock options,

• restricted stock units,

• performance share units and

• preference shares.

We use the treasury stock method to calculate the effect of our outstanding stock options, restricted stock units and performance share units. Share-based payment awards that are contingently issuable upon the achievement of specified performance or market conditions are included in our diluted earnings per share calculation in the period in which the conditions are satisfied.

We use the if-converted method to calculate the effect of our outstanding preference shares. In applying the if-converted method, conversion is not assumed for purposes of computing diluted earnings per share if the effect would be antidilutive. Preference shares are antidilutive whenever the amount of the dividend declared in or accumulated for the current period per common share obtainable on conversion exceeds diluted earnings per share exclusive of the preference shares.

Preference shares are evaluated for participation on a quarterly basis to determine whether two-class presentation is required. Preference shares are considered to be participating as of the financial reporting period end to the extent they would participate in dividends paid to common shareholders. Preference shares are not considered participating for the quarter ended March 31, 2015. Under the provisions of the two-class method, basic and diluted earnings per share would be presented for both preference and common shareholders.

SHARES EXCLUDED FROM DILUTIVE EFFECT

The following shares were not included in the computation of diluted earnings per share because they were either antidilutive or the required performance or market conditions were not met. Some or all of these shares may be dilutive potential common shares in future periods.

9

Potential Shares Not Included in the Computation of Diluted Earnings per Share

	QUARTER ENDED
SHARES IN THOUSANDS	MARCH 2015	MARCH 2014
Stock options	1,128	5,695
Performance share units	358	446
Preference shares	24,988	24,865

STOCK REPURCHASE PROGRAM

During first quarter 2015, we repurchased 7,341,566 shares of common stock for $253 million under the 2014 stock repurchase program which was approved on August 13, 2014 by our Board of Directors under which we are authorized to repurchase up to $700 million of outstanding shares. All common stock purchases under the stock repurchase program were made in open-market transactions. As of March 31, 2015, we had remaining authorization of $244 million for future stock repurchases. In total, we repurchased 13,404,559 shares of common stock for $456 million under the 2014 stock repurchase program.

NOTE 5:INVENTORIES

Inventories include raw materials, work-in-process and finished goods.

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015		DECEMBER 31, 2014
LIFO Inventories:
Logs and chips	$	20	$	9
Lumber, plywood and panels	74		55
Pulp and paperboard	128		122
Other products	15		11
FIFO or moving average cost inventories:
Logs and chips	48		38
Lumber, plywood, panels and engineered wood products	85		80
Pulp and paperboard	34		35
Other products	92		96
Materials and supplies	149		149
Total	$	645	$	595

LIFO – the last-in, first-out method – applies to major inventory products held at our U.S. domestic locations. We began to use the LIFO method for domestic products in the 1940s as required to conform with the tax method elected. Subsequent acquisitions of entities added new products under the FIFO - the first-in, first-out method – or moving average cost methods that have continued under those methods. The FIFO or moving average cost methods applies to the balance of our domestic raw material and product inventories as well as for all material and supply inventories and all foreign inventories. If we used FIFO for all inventories, our stated inventories would have been higher by $120 million as of both March 31, 2015 and December 31, 2014.

10

NOTE 6:PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

The components of net periodic benefit costs (credits) are:

	PENSION
	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Service cost(1)	$	15		$	14
Interest cost	65			69
Expected return on plan assets	(118		)	(116		)
Amortization of actuarial loss	44			31
Amortization of prior service cost	1			1
Total net periodic benefit cost (credit)	$	7		$	(1	)

(1) Service cost includes $1 million for quarter ended 2014 for employees that were part of the Real Estate Divestiture. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Interest cost	$	3		$	3
Amortization of actuarial loss	2			3
Amortization of prior service credit	(2		)	(48		)
Other	—			(4		)
Total net periodic benefit cost (credit)	$	3		$	(46	)

During fourth quarter 2013, we decided to eliminate post-Medicare health funding for certain salaried retirees after 2014. We recognized a pretax gain of $45 million in first quarter 2014 from this plan amendment. This gain is included in "Other operating income, net" in our Consolidated Statement of Operations and reflected in the amortization of prior service credit in the table above.

FAIR VALUE OF PENSION PLAN ASSETS

As disclosed in our Annual Report on Form 10-K for the year ended December 31, 2014, the value reported for our pension plan assets at the end of 2014 was estimated. Additional information regarding the year-end values generally becomes available to us during the first half of the following year. We expect to complete the valuation of our pension plan assets during second quarter 2015. The final adjustments could affect net pension periodic benefit cost.

EXPECTED CONTRIBUTIONS AND BENEFIT PAYMENTS

In 2015 we expect to:

• be required to contribute approximately$38 millionfor our Canadian registered plan;

• be required to contribute or make benefit payments for our Canadian nonregistered plans of$3 million;

• make benefit payments of$19 millionfor our U.S. nonqualified pension plans; and

• make benefit payments of $26 million for our U.S. and Canadian other postretirement plans.

We donotanticipate making a contribution to our U.S. qualified pension plan for 2015.

11

NOTE 7:ACCRUED LIABILITIES

Accrued liabilities were comprised of the following:

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015		DECEMBER 31, 2014
Wages, salaries and severance pay	$	118	$	161
Pension and other postretirement benefits	47		47
Vacation pay	49		47
Taxes – Social Security and real and personal property	30		24
Interest	74		105
Customer rebates and volume discounts	34		46
Deferred income	70		75
Other	111		82
Total	$	533	$	587

NOTE 8:FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair values and carrying values of our long-term debt consisted of the following:

	MARCH 31, 2015				DECEMBER 31, 2014
DOLLAR AMOUNTS IN MILLIONS	CARRYING  VALUE		FAIR VALUE (LEVEL 2)		CARRYING  VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities)	$	4,891	$	5,991	$	4,891	$	5,922

To estimate the fair value of long-term debt, we used the following valuation approaches:

• market approach – based on quoted market prices we received for the same types and issues of our debt; or

• income approach – based on the discounted value of the future cash flows using market yields for the same type and comparable issues of debt.

The inputs to these valuations are based on market data obtained from independent sources or information derived principally from observable market data.

The difference between the fair value and the carrying value represents the theoretical net premium or discount we would pay or receive to retire all debt at the measurement date.

FAIR VALUE OF OTHER FINANCIAL INSTRUMENTS

We believe that our other financial instruments, including cash and cash equivalents, short-term investments, receivables, and payables, have net carrying values that approximate their fair values with only insignificant differences. This is primarily due to:

• the short-term nature of these instruments,

• carrying short-term investments at expected net realizable value and

• the allowance for doubtful accounts.

12

NOTE 9:LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

This note provides details about our:

• legal proceedings and

• environmental matters.

LEGAL PROCEEDINGS

We are party to various legal proceedings arising in the ordinary course of business. We are not currently a party to any legal proceeding that management believes could have a material adverse effect on our long-term consolidated financial position, results of operations or cash flows.

ENVIRONMENTAL MATTERS

Our environmental matters include:

• site remediation and

• asset retirement obligations.

Site Remediation

Under the Comprehensive Environmental Response Compensation and Liability Act – commonly known as the Superfund – and similar state laws, we:

• are a party to various proceedings related to the cleanup of hazardous waste sites and

• have been notified that we may be a potentially responsible party related to the cleanup of other hazardous waste sites for which proceedings have not yet been initiated.

As of March 31, 2015, our total accrual for future estimated remediation costs on the active Superfund sites and other sites for which we are responsible was approximately $28 million. These reserves are recorded in "Accrued liabilities" and "Other liabilities" in our Consolidated Balance Sheet. The accrual has not changed materially since the end of 2014.

Asset Retirement Obligations

We have obligations associated with the retirement of tangible long-lived assets consisting primarily of reforestation obligations related to forest management licenses in Canada and obligations to close and cap landfills. As of March 31, 2015, our total accruals for these obligations was $38 million. These obligations are recorded in "Accrued liabilities" and "Other liabilities" in our Consolidated Balance Sheet. The accruals have not changed materially since the end of 2014.

Some of our sites have materials containing asbestos. We have met our current legal obligation to identify and manage these materials. In situations where we cannot reasonably determine when materials containing asbestos might be removed from the sites, we have not recorded an accrual because the fair value of the obligation cannot be reasonably estimated.

13

NOTE 10:CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)

Changes in amounts included in our cumulative other comprehensive income (loss) by component are:

				PENSION						OTHER POSTRETIREMENT BENEFITS
DOLLAR AMOUNTS IN MILLIONS	Foreign currency translation adjustments			Actuarial losses			Prior service costs			Actuarial losses			Prior service credits			Unrealized gains on available-for-sale securities		Total
Beginning balance as of December 31, 2014	$	304		$	(1,623	)	$	(15	)	$	(108	)	$	43		$	6	$	(1,393	)
Other comprehensive income (loss) before reclassifications	(47		)	40			—			2			(1		)	1		(5		)
Income taxes	—			(10		)	—			—			—			—		(10		)
Net other comprehensive income (loss) before reclassifications	(47		)	30			—			2			(1		)	1		(15		)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	—			44			1			2			(2		)	—		45
Income taxes	—			(15		)	—			(1		)	—			—		(16		)
Net amounts reclassified from cumulative other comprehensive income (loss)	—			29			1			1			(2		)	—		29
Total other comprehensive income (loss)	(47		)	59			1			3			(3		)	1		14
Ending balance as of March 31, 2015	$	257		$	(1,564	)	$	(14	)	$	(105	)	$	40		$	7	$	(1,379	)
(1) Actuarial losses and prior service credits (cost) are included in the computation of net periodic benefit costs (credits). See Note 6: Pension and Other Postretirement Benefit Plans.

NOTE 11:SHARE-BASED COMPENSATION

In first quarter 2015, we granted 2,122,608 stock options, 433,469 restricted stock units, 238,662 performance share units and 58,373 stock appreciation rights. In addition, 339,413 outstanding restricted stock units and 222,257 outstanding performance share units vested during first quarter 2015. A total of 1,389,787 shares of common stock were issued as a result of restricted stock unit vesting, performance share unit vesting and stock option exercises.

STOCK OPTIONS

The weighted average exercise price of all of the stock options granted in 2015 was $35.41. The vesting and post-termination vesting terms for stock options granted in 2015 were as follows:

• vest ratably over four years;

• vest or continue to vest in the event of death while employed, disability or retirement at an age of at least 62;

• continue to vest upon retirement at an age of at least 62, but a portion of the grant is forfeited if retirement occurs before the one year anniversary of the grant;

• continue to vest for one year in the event of involuntary termination when the retirement criteria has not been met; and

• stop vesting for all other situations including early retirement prior to age 62.

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Weighted Average Assumptions Used in Estimating the Value of Stock Options Granted in 2015

	OPTIONS
Expected volatility	25.92		%
Expected dividends	3.28		%
Expected term (in years)	4.77
Risk-free rate	1.54		%
Weighted average grant date fair value	$	5.85

RESTRICTED STOCK UNITS

The weighted average fair value of the restricted stock units granted in 2015 was $35.41. The vesting provisions for restricted stock units granted in 2015 were as follows:

• vest ratably over four years;

• immediately vest in the event of death while employed or disability;

• continue to vest upon retirement at an age of at least 62, but a portion of the grant is forfeited if retirement occurs before the one year anniversary of the grant;

• continue vesting for one year in the event of involuntary termination when the retirement criteria has not been met; and

• will be forfeited upon termination of employment in all other situations including early retirement prior to age 62.

PERFORMANCE SHARE UNITS

The weighted average grant date fair value of performance share units granted in 2015 was $34.75.

The final number of shares granted in 2015 will range from 0 percent to 150 percent of each grant's target, depending upon actual company performance.

The ultimate number of performance share units earned is based on two measures:

• our relative total shareholder return (TSR) ranking measured against the S&P 500 over a three year period and

• our relative TSR ranking measured against an industry peer group of companies over a three year period.

The vesting provisions for performance share units granted in 2015 were as follows:

• vest 100 percent on the third anniversary of the grant date as long as the individual remains employed by the company;

• fully vest in the event the participant dies or becomes disabled while employed;

• continue to vest upon retirement at an age of at least 62, but a portion of the grant is forfeited if retirement occurs before the one year anniversary of the grant;

• continue vesting for one year in the event of involuntary termination when the retirement criteria has not been met and the employee has met the second anniversary of the grant date; and

• will be forfeited upon termination of employment in all other situations including early retirement prior to age 62.

15

Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted in 2015

	Performance Share Units
Performance period	1/1/2015 – 12/31/2017
Valuation date closing stock price	$	35.41
Expected dividends	3.26					%
Risk-free rate	0.05		%	–	1.07	%
Expected volatility	16.04		%	–	20.89	%

STOCK APPRECIATION RIGHTS

Stock appreciation rights are remeasured to reflect the fair value at each reporting period. The following table shows the weighted average assumptions applied to all outstanding stock appreciation rights as of March 31, 2015.

Weighted Average Assumptions Used to Remeasure the Value of Stock Appreciation Rights as of March 31, 2015

	MARCH 31, 2015
Expected volatility	19.55		%
Expected dividends	3.36		%
Expected term (in years)	1.99
Risk-free rate	0.58		%
Weighted average fair value	$	10.75

The vesting and post-termination vesting terms for stock appreciation rights granted in 2015 are the same as for stock options described above.

NOTE 12:CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

Items Included in Our Restructuring, Closure and Asset Impairment Charges

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014
Restructuring and closure charges:
Termination benefits	$	—	$	17
Other restructuring and closure costs	1		2
Charges for restructuring and closures	1		19
Impairments of long-lived assets	13		—
Total charges for restructuring, closures and impairments	$	14	$	19

During 2015, we recognized a noncash impairment charge of $13 million related to a nonstrategic asset held in Unallocated Items. The fair value of the asset was determined using significant unobservable inputs (level 3) based on discounted cash flow model. During 2014, our restructuring and closure charges were primarily related to our selling, general and administrative cost reduction initiative to support achieving our competitive performance goals.

Changes in accrued severance related to restructuring during the quarter ended March 31, 2015 were as follows:

DOLLAR AMOUNTS IN MILLIONS
Accrued severance as of December 31, 2014	$	10
Charges	—
Payments	(6		)
Accrued severance as of March 31, 2015	$	4

The majority of the accrued severance balance as of March 31, 2015, is expected to be paid within one year.

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NOTE 13:OTHER OPERATING COSTS (INCOME), NET

Other operating costs (income), net:

• includes both recurring and occasional income and expense items and

• can fluctuate from year to year.

Items Included in Other Operating Costs (Income), Net

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Gain on postretirement plan amendment (Note 6)	$	—		$	(45	)
Gain on disposition of nonstrategic assets	(2		)	(23		)
Foreign exchange losses, net	29			14
Land management income	(8		)	(7		)
Other, net	(4		)	(14		)
Total other operating costs (income), net	$	15		$	(75	)

Gain on disposition of nonstrategic assets in 2014 included a $22 million pretax gain recognized in first quarter 2014 on the sale of a landfill in Washington State.

Foreign exchange losses result from changes in exchange rates on transactions, primarily related to our Canadian operations.

Land management income includes income from recreational activities, land permits, grazing rights, firewood sales and other miscellaneous income related to land management activities.

NOTE 14:INCOME TAXES

As a REIT, we generally are not subject to corporate level tax on income of the REIT that is distributed to shareholders. We are, however, subject to corporate taxes on built-in-gains (the excess of fair market value over tax basis at January 1, 2010) on sales of real property (other than standing timber) held by the REIT during the first 10 years following the REIT conversion. We continue to be required to pay federal corporate income taxes on earnings of our TRS, which includes our manufacturing businesses and the portion of our Timberlands segment income included in the TRS.

The 2015 provision for income taxes is based on the current estimate of the annual effective tax rate. Our 2015 estimated annual effective tax rate for our TRS is approximately 31 percent, which is lower than the statutory federal tax rate primarily due to permanent tax deductions and lower foreign tax rates applicable to foreign earnings, partially offset by state income taxes.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS (“MD&A”)

FORWARD-LOOKING STATEMENTS

This report contains statements concerning our future results and performance that are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements:

• are based on various assumptions we make and

• may not be accurate because of risks and uncertainties surrounding the assumptions that we make.

Factors listed in this section – as well as other factors not included – may cause our actual results to differ significantly from our forward-looking statements. There is no guarantee that any of the events anticipated by our forward-looking statements will occur. Or if any of the events occur, there is no guarantee what effect they will have on our operations or financial condition.

We will not update our forward-looking statements after the date of this report.

FORWARD-LOOKING TERMINOLOGY

Forward-looking statements can be identified by the fact that they do not relate strictly to historical or current facts. They often use words such as expects, may, should, will, believes, anticipates, estimates, projects, intends, plans, targets and approximately. They may use the positive or negative or other variation of those and similar words.

STATEMENTS

We make forward-looking statements in this report concerning our plans, strategies, intentions and expectations, including with respect to estimated taxes and tax rates, expectations relating to shares, share repurchases, share compensation, dilution and dividends, expected results of legal proceedings and the sufficiency of litigation reserves, expected uses of cash, expectations relating to pension contributions and benefit payments, and our expectations relating to the U.S. housing market, economic conditions, strength of the U.S. dollar and demand for our products.

We base our forward-looking statements on a number of factors, including the expected effect of:

• the economy,

• laws and regulations,

• adverse litigation outcomes and the adequacy of reserves,

• changes in accounting principles,

• contributions to pension plans,

• projected benefit payments,

• projected tax treatment, rates and credits, and

• other related matters.

You should understand that it is not possible to predict or identify all such factors and, consequently, you should not consider any such list to be a complete set of all potential risks or uncertainties. Should other risks or uncertainties materialize, or should our underlying assumptions prove inaccurate, actual results could differ materially from past results as well as from our estimated or projected results.

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RISKS, UNCERTAINTIES AND ASSUMPTIONS

Major risks and uncertainties – and assumptions that we make – that affect our business and may cause actual results to differ from these forward-looking statements include, but are not limited to:

• the effect of general economic conditions, including employment rates, interest rate levels, housing starts, availability of financing for home mortgages and strength of the U.S. dollar;

• market demand for our products, which is related to the strength of the various U.S. business segments and U.S. and international economic conditions;

• performance of our manufacturing operations, including maintenance requirements;

• potential disruptions in our manufacturing operations;

• the level of competition from domestic and foreign producers;

• raw material availability and prices;

• the effect of weather;

• the risk of loss from fires, floods, windstorms, hurricanes, pest infestation and other natural disasters;

• energy prices;

• the successful execution of our internal plans and strategic initiatives;

• transportation and labor availability and costs;

• federal tax policies;

• the effect of forestry, land use, environmental and other governmental regulations;

• legal proceedings;

• performance of pension fund investments and related derivatives;

• the effect of timing of retirements and changes in the market price of our common stock on charges for share-based compensation;

• changes in accounting principles; and

• other factors described under “Risk Factors” in our 2014 Annual Report on Form 10-K.

EXPORTING ISSUES

We are a large exporter, affected by:

• economic activity in Europe and Asia, especially Japan and China;

• currency exchange rates – particularly the relative value of the U.S. dollar, Canadian dollar, euro and yen; and

• restrictions on international trade or tariffs imposed on imports.

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RESULTS OF OPERATIONS

In reviewing our results of operations, it is important to understand these terms:

• Sales realizations refer to net selling prices – this includes selling price plus freight, minus normal sales deductions.

• Net contribution to earnings (loss) attributable to Weyerhaeuser shareholders before interest expense and income taxes.

In reviewing our results of operations, it is important to understand net sales and operating income included in Consolidated Results and individual segment discussions below exclude the results of discontinued operations. Refer to Note 3: Discontinued Operations.

In the following discussion, unless otherwise noted, references to increases or decreases in income and expense items, sales realizations, shipment volumes, and net contributions to earnings are based on the quarter ended March 31, 2015, compared to the quarter ended March 31, 2014.

ECONOMIC AND MARKET CONDITIONS AFFECTING OUR OPERATIONS

The strength of the U.S. housing market strongly affects our Wood Products and Timberlands segments. As published by the U.S. Census Bureau, total housing starts for 2014 were slightly above 1,000,000 units. Despite the slow start in the first quarter, as severe winter weather disrupted construction activity, we continue to expect U.S. housing starts of approximately 1,100,000 units in 2015 as a result of employment growth, improving consumer confidence and continued historically low mortgage rates.

Demand for logs from our Timberlands segment is affected by production levels of wood-based building products. Our Western holdings are also affected by export demand. We expect demand from China and Japan in 2015 to be lower than 2014.

Cellulose Fibers is primarily affected by global supply and demand factors and the relative strength of the U.S. dollar. The euro declined in 2014 and early 2015 relative to the U.S. dollar to the lowest level in recent years. We do not expect the U.S. dollar to continue to strengthen significantly relative to developed currencies during the rest of 2015.

CONSOLIDATED RESULTS

How We Did in First Quarter 2015

NET SALES / OPERATING INCOME / NET EARNINGS – WEYERHAEUSER COMPANY

Here is a comparison of net sales, operating income and net earnings for the quarters ended March 31, 2015 and 2014:

	QUARTER ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	MARCH 2015		MARCH 2014		2015 VS. 2014
Net sales	$	1,721	$	1,736	$	(15	)
Operating income	$	200	$	308	$	(108	)
Earnings of discontinued operations, net of tax	$	—	$	10	$	(10	)
Net earnings attributable to Weyerhaeuser common shareholders	$	90	$	183	$	(93	)
Earnings per share attributable to Weyerhaeuser shareholders, basic and diluted	$	0.17	$	0.31	$	(0.14	)

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Comparing First Quarter 2015 with First Quarter 2014

Net sales

Net sales decreased $15 million – 1 percent – primarily due to the following:

• Timberlands segment sales decreased $26 million, primarily due to lower average log sales realizations and export sales volumes in the West.

• Cellulose Fibers segment sales decreased $14 million, primarily due to lower sales volumes for all products and lower liquid packaging board average sales realizations, partially offset by higher pulp average sales realizations.

These decreases were partially offset by a $25 million increase in our Wood Products segment sales, primarily due to higher shipment volumes across all major product lines, higher sales from complementary building products and higher average sales realizations for engineered i-joists partially offset by lower average sales realizations for structural lumber and oriented strand board (OSB).

Net earnings attributable to Weyerhaeuser common shareholders

Our net earnings attributable to Weyerhaeuser common shareholders decreased $93 million – 51 percent – primarily due to the following:

• lower other operating income – $90 million – primarily due to a $45 million pretax gain recognized in 2014 related to a previously announced postretirement plan amendment, a $22 million pretax gain recognized in 2014 on the sale of a landfill in Washington State and a $14 million increase in noncash foreign exchange losses on debt held by our Canadian entity; and

• lower gross margin, primarily due to higher operating costs in our Cellulose Fibers segment, lower average sales realizations in lumber and OSB in our Wood Products segment and lower average log sales realizations and sales volumes in our Timberlands segment – $39 million.

These decreases were partially offset by lower tax expense primarily due to lower earnings in our Taxable REIT Subsidiary (TRS) – $31 million.

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TIMBERLANDS

How We Did First Quarter 2015

Here is a comparison of net sales to unaffiliated customers, intersegment sales, and net contribution to earnings for the quarters ended March 31, 2015 and 2014:

NET SALES / NET CONTRIBUTION TO EARNINGS – TIMBERLANDS

	QUARTER ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014		2015 VS. 2014
Net sales to unaffiliated customers:
Logs:
West	$	210	$	257	$	(47	)
South	58		62		(4		)
Canada	8		6		2
Subtotal logs sales	276		325		(49		)
Chip sales	4		3		1
Timberlands exchanges(1)	25		4		21
Higher and better-use land sales(1)	2		3		(1		)
Minerals, oil and gas	7		7		—
Products from international operations(2)	24		24		—
Other products	13		11		2
Subtotal net sales to unaffiliated customers	351		377		(26		)
Intersegment sales:
United States	149		143		6
Other	79		95		(16		)
Subtotal intersegment sales	228		238		(10		)
Total sales	$	579	$	615	$	(36	)
Net contribution to earnings	$	162	$	164	$	(2	)

(1) Significant dispositions of higher and better-use timberland and some nonstrategic timberlands are made through subsidiaries.

(2) Includes logs, plywood and hardwood lumber harvested or produced by our international operations in South America.

Comparing First Quarter 2015 with First Quarter 2014

Net sales – unaffiliated customers

Net sales to unaffiliated customers decreased $26 million – 7 percent – primarily due to a $47 million decrease in Western log sales as a result of lower average sales realizations and export sales volumes. This was partially offset by a $21 million increase in sales from timberlands exchanges.

Intersegment sales

Intersegment sales decreased $10 million – 4 percent – primarily due to a $16 million decrease in Canada as a result of lower log and chip sales volumes. This was partially offset by a $6 million increase in the United States due to higher sales volumes in the West.

22

Net contribution to earnings

Net contribution to earnings decreased $2 million – 1 percent – primarily due to the following:

• lower average log sales realizations in the West primarily due to a shift in mix from export to domestic sales – $29 million and

• lower sales volumes in the West and South – $15 million.

These decreases were mostly offset by:

• lower operating costs due to lower log purchases in the West and lower harvest volumes in the South – $15 million;

• higher timberlands exchanges – $13 million;

• higher average log sales realizations in the South – $6 million; and

• lower selling, general and administrative expenses – $4 million.

THIRD-PARTY LOG SALES VOLUMES AND FEE HARVEST VOLUMES

	QUARTER ENDED		AMOUNT OF CHANGE
VOLUMES IN THOUSANDS	MARCH 2015	MARCH 2014	2015 VS. 2014
Third party log sales – cubic meters:
West	2,120	2,246	(126	)
South	1,271	1,385	(114	)
Canada	245	156	89
International	150	147	3
Total	3,786	3,934	(148	)
Fee harvest volumes – cubic meters:
West	2,911	2,875	36
South	2,732	2,866	(134	)
International	239	249	(10	)
Total	5,882	5,990	(108	)

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WOOD PRODUCTS

How We Did First Quarter 2015

Here is a comparison of net sales to unaffiliated customers and net contribution to earnings for the quarters ended March 31, 2015 and 2014:

NET SALES / NET CONTRIBUTION TO EARNINGS – WOOD PRODUCTS

	QUARTER ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014		2015 VS. 2014
Net sales:
Structural lumber	$	434	$	427	$	7
Engineered solid section	94		90		4
Engineered I-joists	61		59		2
Oriented strand board	137		148		(11		)
Softwood plywood	33		30		3
Other products produced	48		42		6
Complementary building products	116		102		14
Total	$	923	$	898	$	25
Net contribution to earnings	$	62	$	64	$	(2	)

Comparing FirstQuarter 2015 with First Quarter 2014

Net sales

Net sales increased $25 million – 3 percent – primarily due to the following:

• Complementary building products increased 14 percent,

• Structural lumber shipment volumes increased 9 percent,

• OSB shipment volumes increased 9 percent,

• Engineered solid section shipment volumes increased 4 percent and

• Engineered I-joists average sales realizations increased 4 percent.

These items were partially offset by:

• Structural lumber average sales realizations decreased 7 percent and

• OSB average sales realizations decreased 15 percent.

Net contribution to earnings

Net contribution to earnings decreased $2 million – 3 percent – primarily due to lower average sales realizations in lumber and OSB – $54 million. This decrease was mostly offset by the following:

• higher average sales realizations in engineered wood products – $6 million;

• higher shipment volumes across all major product lines – $4 million;

• lower manufacturing costs due to lower energy costs, higher productivity and decreased Canadian operating costs due to the strengthening U.S. dollar – $28 million; and

• lower selling, general and administrative expenses – $12 million.

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THIRD-PARTY SALES VOLUMES

	QUARTER ENDED		AMOUNT OF CHANGE
VOLUMES IN MILLIONS(1)	MARCH 2015	MARCH 2014	2015 VS. 2014
Structural lumber – board feet	1,075	989	86
Engineered solid section – cubic feet	4.8	4.6	0.2
Engineered I-joists – lineal feet	41	40	1
Oriented strand board – square feet (3/8”)	700	641	59
Softwood plywood – square feet (3/8”)	89	90	(1	)

(1) Sales volumes include sales of internally produced products and products purchased for resale primarily through our distribution business.

PRODUCTION AND OUTSIDE PURCHASE VOLUMES

Outside purchase volumes are primarily purchased for resale through our distribution business. Production volumes are produced for sale through our own sales organizations and through our distribution business. Production of OSB and engineered solid section are also used to manufacture engineered I-joists.

	QUARTER ENDED		AMOUNT OF CHANGE
VOLUMES IN MILLIONS	MARCH 2015	MARCH 2014	2015 VS. 2014
Structural lumber – board feet:
Production	1,043	1,009	34
Outside purchase	89	78	11
Total	1,132	1,087	45
Engineered solid section – cubic feet:
Production	5.0	4.9	0.1
Outside purchase	—	1.8	(1.8	)
Total	5.0	6.7	(1.7	)
Engineered I-joists – lineal feet:
Production	43	44	(1	)
Outside purchase	1	1	—
Total	44	45	(1	)
Oriented strand board – square feet (3/8”):
Production	704	657	47
Outside purchase	65	53	12
Total	769	710	59
Softwood plywood – square feet (3/8”):
Production	61	59	2
Outside purchase	37	33	4
Total	98	92	6

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CELLULOSE FIBERS

How We Did in First Quarter 2015

Here is a comparison of net sales and net contribution to earnings for the quarters ended March 31, 2015 and 2014:

NET SALES / NET CONTRIBUTION TO EARNINGS – CELLULOSE FIBERS

	QUARTER ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014		2015 VS. 2014
Net sales:
Pulp	$	360	$	363	$	(3	)
Liquid packaging board	74		80		(6		)
Other products	13		18		(5		)
Total	$	447	$	461	$	(14	)
Net contribution to earnings	$	33	$	54	$	(21	)

Comparing First Quarter 2015 with First Quarter 2014

Net sales

Net sales decreased $14 million – 3 percent – primarily due to the following:

• pulp sales volumes decreased 4 percent,

• liquid packaging board sales volumes decreased 5 percent and average sales realizations decreased $43 per ton – 3 percent and

• other products sales volumes decreased 30 percent.

These decreases were partially offset by increased pulp average sales realizations of $29 per ton – 4 percent.

Net contribution to earnings

Net contribution to earnings decreased $21 million – 39 percent – primarily due to the following:

• higher operating costs primarily due to higher maintenance expense and lower productivity as a result of scheduled maintenance outages and the West Coast port slowdown – $30 million; and

• lower other non operating income, which includes losses from an equity affiliate – $6 million.

These decreases were partially offset by:

• higher pulp average sales realizations – $12 million and

• lower Canadian operating costs due to the strengthening of the U.S. dollar – $5 million.

THIRD-PARTY SALES VOLUMES

	QUARTER ENDED		AMOUNT OF CHANGE
VOLUMES IN THOUSANDS	MARCH 2015	MARCH 2014	2015 VS. 2014
Pulp – air-dry metric tons	421	440	(19	)
Liquid packaging board – metric tons	62	65	(3	)

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TOTAL PRODUCTION VOLUMES

	QUARTER ENDED		AMOUNT OF CHANGE
VOLUMES IN THOUSANDS	MARCH 2015	MARCH 2014	2015 VS. 2014
Pulp – air-dry metric tons	442	459	(17	)
Liquid packaging board – metric tons	60	70	(10	)

UNALLOCATED ITEMS

Unallocated Items are gains or charges not related to or allocated to an individual operating segment. They include a portion of items such as: share-based compensation, pension and postretirement costs, foreign exchange transaction gains and losses associated with financing and the elimination of intersegment profit in inventory and the LIFO reserve.

NET CONTRIBUTION TO EARNINGS – UNALLOCATED ITEMS

	QUARTER ENDED						AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014			2015 VS. 2014
Unallocated corporate function expense	$	(9	)	$	(7	)	$	(2	)
Unallocated share-based compensation	3			3			—
Unallocated pension and postretirement credits	3			55			(52		)
Foreign exchange losses	(29		)	(15		)	(14		)
Elimination of intersegment profit in inventory and LIFO	(12		)	(19		)	7
Other	(19		)	9			(28		)
Operating income (loss)	(63		)	26			(89		)
Interest income and other	9			9			—
Net contribution to earnings	$	(54	)	$	35		$	(89	)

Changes in Unallocated Items were primarily related to:

• a pretax gain recognized in first quarter 2014 related to a previously announced postretirement plan amendment – $45 million;

• a pretax gain recognized in first quarter 2014 on the sale of a landfill in Washington State, which is recorded in "Other operating income, net" in our Consolidated Statement of Operations – $22 million;

• charges recognized in first quarter 2014 related to our selling, general and administrative cost reduction initiative – $18 million;

• an increase in noncash foreign exchange losses on debt held by our Canadian entity –$14 million; and

• noncash impairment charge recognized in first quarter 2015 related to a nonstrategic asset – $13 million.

INTEREST EXPENSE

Our interest expense, net of capitalized interest incurred was:

• $83 million during first quarter 2015 and

• $83 million during first quarter 2014.

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INCOME TAXES

Our provision for income taxes for our continuing operations was:

• $19 million during first quarter 2015 and

• $50 million during first quarter 2014.

Our provision for income taxes is lower in 2015 primarily due to lower earnings in our TRS.

LIQUIDITY AND CAPITAL RESOURCES

We are committed to maintaining an appropriate capital structure that enables us to:

• protect the interests of our shareholders and lenders and

• have access at all times to all major financial markets.

CASH FROM OPERATIONS

Consolidated net cash provided by our operations was:

• $77 million in 2015 and

• $109 million in 2014.

Comparing 2015 with 2014

Net cash provided by our operations decreased $32 million in 2015 as compared with 2014, primarily due to:

• Net cash related to income taxes changed $51 million. We paid income taxes of $1 million in 2015 and received refunds of $50 million in 2014.

• Net cash paid for interest increased $13 million, primarily due to interest received related to tax refunds in 2014. We did not receive interest related to tax refunds in 2015.

• A $12 million increase in cash paid to employees and suppliers.

These outflows were partially offset by a $42 million decrease in net cash outflows related to discontinued operations. There was no cash flows from discontinued operations in 2015.

Expected Pension Contributions and Benefit Payments

In 2015 we expect to:

• be required to contribute approximately$38 millionfor our Canadian registered plan;

• be required to contribute or make benefit payments for our Canadian nonregistered plans of$3 million;

• make benefit payments of$19 millionfor our U.S. nonqualified pension plans; and

• make benefit payments of $26 million for our U.S. and Canadian other postretirement plans.

We donotanticipate making a contribution to our U.S. qualified pension plan for 2015.

CASH FROM INVESTING ACTIVITIES

Consolidated net cash used in investing activities was:

• $119 million in 2015 and

• $46 million in 2014.

28

Comparing 2015 with 2014

Net cash used in investing activities increased $73 million in 2015 as compared with 2014, primarily due to an increase in acquisitions of timberlands and capital spending, partially offset by a decrease in proceeds from sale of nonstrategic assets.

Summary of Capital Spending by Business Segment

	YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014
Timberlands	$	24	$	19
Wood Products	37		18
Cellulose Fibers	27		26
Unallocated Items	1		—
Discontinued operations	—		2
Total	$	89	$	65

We anticipate that our net capital expenditures for 2015 – excluding acquisitions – will be approximately $500 million.

CASH FROM FINANCING ACTIVITIES

Consolidated net cash used in financing activities was:

• $380 million in 2015 and

• $118 million in 2014.

Comparing 2015 with 2014

Net cash used in financing activities increased $262 million in 2015 as compared to 2014 primarily due to share repurchases of $253 million in 2015.

Debt

There were no payments of debt in 2015 or 2014. There are no expected debt maturities in the next 12 months.

Revolving credit facility

Weyerhaeuser Company has a $1 billion 5-year senior unsecured revolving credit facility that expires in September 2018. There were no net proceeds from the issuance of debt or from borrowings (repayments) under our available credit facility in first quarter 2015 or 2014.

Debt Covenants

As of March 31, 2015 Weyerhaeuser Company was in compliance with all debt covenants. There have been no significant changes during first quarter 2015 to our debt covenants presented in our 2014 Annual Report on Form 10-K.

Option Exercises

We received cash proceeds from the exercise of stock options of:

• $21 million in 2015 and

• $15 million in 2014.

Our average stock price was $35.01 and $30.09 in first quarter 2015 and 2014, respectively.

29

Paying dividends and repurchasing stock

We paid cash dividends on common shares of:

• $152 million in 2015 and

• $129 million in 2014.

The increase in dividends paid is primarily due to the increase in our quarterly dividend from 22 cents per share to 29 cents per share in August 2014, a 32 percent increase in our quarterly dividend.

During first quarter 2015, we repurchased 7,341,566 shares of common stock for $253 million under the 2014 stock repurchase program which was approved on August 13, 2014 by our Board of Directors under which we are authorized to repurchase up to $700 million of outstanding shares. All common stock purchases under the stock repurchase program were made in open-market transactions. As of March 31, 2015, we had remaining authorization of $244 million for future stock repurchases. In total, we repurchased 13,404,559 shares of common stock for $456 million under the 2014 stock repurchase program.

PERFORMANCE MEASURES

We use Adjusted Earnings before Interest, Taxes, Depreciation, Depletion and Amortization (Adjusted EBITDA) as a key performance measure to evaluate the performance of the consolidated company and our business segments. This measure should not be considered in isolation from and is not intended to represent an alternative to our results reported in accordance with U.S. generally accepted accounting principles (U.S. GAAP). However, we believe Adjusted EBITDA provides meaningful supplemental information about our operating performance, better facilitates period to period comparisons, and is widely used by analysts, lenders, rating agencies and other interested parties.

Our definition of Adjusted EBITDA may be different from similarly titled measures reported by other companies. Adjusted EBITDA, as we define it, is operating income from continuing operations adjusted for depreciation, depletion, amortization, pension and postretirement costs not allocated to business segments (primarily interest cost, expected return on plan assets, amortization of actuarial loss and amortization of prior service cost/credit), special items and discontinued operations.

ADJUSTED EBITDA BY SEGMENT

	QUARTER ENDED						AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014			2015 VS. 2014
Adjusted EBITDA by Segment:
Timberlands	$	215		$	216		$	(1	)
Wood Products	88			93			(5		)
Cellulose Fibers	78			92			(14		)
	381			401			(20		)
Unallocated Items	(48		)	(29		)	(19		)
Total	$	333		$	372		$	(39	)

We reconcile Adjusted EBITDA to net earnings for the consolidated company and to operating income for the business segments, as those are the most directly comparable U.S. GAAP measures for each.

30

The table below reconciles Adjusted EBITDA to net income by segment during the quarter ended March 2015:

DOLLAR AMOUNTS IN MILLIONS	Timberlands		Wood Products		Cellulose Fibers		Unallocated Items			Total
Adjusted EBITDA by Segment:
Net earnings										$	101
Interest expense, net of capitalized interest										83
Income taxes										19
Net contribution to earnings	$	162	$	62	$	33	$	(54	)	203
Interest income and other	—		—		6		(9		)	(3		)
Operating income	162		62		39		(63		)	200
Depreciation, depletion and amortization	53		26		39		5			123
Non-operating pension and postretirement credits	—		—		—		(3		)	(3		)
Special items(1)	—		—		—		13			13
Adjusted EBITDA	$	215	$	88	$	78	$	(48	)	$	333

(1)    Special items include: a $13 million noncash impairment charge related to a nonstrategic asset.

A reconciliation of Adjusted EBITDA to net income by segment during the quarter ended March 2014:

DOLLAR AMOUNTS IN MILLIONS	Timberlands		Wood Products		Cellulose Fibers		Unallocated Items			Total
Adjusted EBITDA by Segment:
Net earnings										$	194
Earnings from discontinued operations, net of income taxes										(10		)
Interest expense, net of capitalized interest										83
Income taxes										50
Net contribution to earnings	$	164	$	64	$	54	$	35		317
Interest income and other	—		—		—		(9		)	(9		)
Operating income	164		64		54		26			308
Depreciation, depletion and amortization	52		29		38		4			123
Non-operating pension and postretirement credits	—		—		—		(10		)	(10		)
Special items(1)	—		—		—		(49		)	(49		)
Adjusted EBITDA	$	216	$	93	$	92	$	(29	)	$	372

(1)    Special items include: a $45 million pretax gain related to a previously announced postretirement plan amendment, $18 million in restructuring and closure charges related to our selling, general and administrative cost reduction initiative and a $22 million pretax gain on the sale of a landfill in Washington State.

CRITICAL ACCOUNTING POLICIES

There have been no significant changes during first quarter 2015 to our critical accounting policies presented in our 2014 Annual Report on Form 10-K.

31

QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

No changes occurred during first quarter 2015 that had a material effect on the information relating to quantitative and qualitative disclosures about market risk that was provided in the company’s Annual Report on Form 10-K for the year ended December 31, 2014.

CONTROLS AND PROCEDURES

EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

Disclosure controls are controls and other procedures that are designed to ensure that information required to be disclosed in the reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that information required to be disclosed by an issuer in the reports that it files or submits under the Act is accumulated and communicated to the issuer’s management, including its principal executive and principal financial officers, to allow timely decisions regarding required disclosure. The company’s principal executive officer and principal financial officer have concluded that the company’s disclosure controls and procedures were effective as of March 31, 2015, based on an evaluation of the company’s disclosure controls and procedures as of that date.

CHANGES IN INTERNAL CONTROLS

No changes occurred in the company’s internal control over financial reporting during first quarter 2015 that have materially affected, or are reasonably likely to materially affect, the company’s internal control over financial reporting.

LEGAL PROCEEDINGS

Refer to “Notes to Consolidated Financial Statements – Note 9: Legal Proceedings, Commitments and Contingencies.”

RISK FACTORS

There have been no material changes with respect to the risk factors disclosed in our 2014 Annual Report on Form 10-K.

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

INFORMATION ABOUT COMMON SHARE REPURCHASES DURING FIRST QUARTER 2015

ISSUER PURCHASES OF EQUITY SECURITIES

COMMON SHARE REPURCHASES DURING THIRD QUARTER	TOTAL NUMBER OF SHARES (OR UNITS) PURCHASED	AVERAGE PRICE PAID PER SHARE (OR UNIT)		TOTAL NUMBER OF SHARES (OR UNITS) PURCHASED AS PART OF PUBLICLY ANNOUCED PLANS OR PROGRAMS	MAXIMUM NUMBER (OR APPROXIMATE DOLLAR VALUE) OF SHARES (OR UNITS) THAT MAY YET BE PURCHASED UNDER THE PLANS OR PROGRAMS
January 1 - January 31	153,429	$	35.93	153,429	$	491,026,463
February 1 - February 28	2,588,869	35.24		2,588,869	399,791,668
March 1 – March 31	4,599,268	33.85		4,599,268	244,089,600
Total repurchases during first quarter	7,341,566	$	34.39	7,341,566	$	244,089,600

During first quarter 2015, we repurchased 7,341,566 shares of common stock for $253 million under the 2014 stock repurchase program which was approved on August 13, 2014 by our Board of Directors which we are authorized to repurchase up to $700 million of outstanding shares. All common stock purchases under the stock repurchase program were made in open-market transactions. In total, we repurchased 13,404,559 shares of common stock for $456 million under the 2014 stock repurchase program.

32

EXHIBITS

12	Statements regarding computation of ratios
31	Certification pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934, as amended
32	Certification pursuant to Rule 13a-14(b) under the Securities Exchange Act of 1934, as amended, and Section 1350 of Chapter 63 of Title 18 of the United States Code (18 U.S.C. 1350)
100.INS	XBRL Instance Document
100.SCH	XBRL Taxonomy Extension Schema Document
100.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
100.DEF	XBRL Taxonomy Extension Definition Linkbase Document
100.LAB	XBRL Taxonomy Extension Label Linkbase Document
100.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

WEYERHAEUSER COMPANY
Date:	May 1, 2015
By:	/s/ JEANNE M. HILLMAN
	Jeanne M. Hillman
	Vice President and Chief Accounting Officer

33

EX-12

EXHIBIT 12

Weyerhaeuser Company and Subsidiaries

Computation of Ratios of Earnings to Fixed Charges and

Computation of Ratios of Earnings to Combined Fixed Charges and Preference Dividends

For the quarters ended March 31, 2015, and 2014

(Dollar amounts in millions)

	YEAR-TO-DATE ENDED
	MARCH 2015		MARCH 2014
Available earnings:
Earnings before interest expense, amortization of debt expense and income taxes	$	203	$	317
Add: interest portion of rental expense	2		2
Add: undistributed losses of equity affiliates and income attributable to noncontrolling interests in subsidiaries	6		1
Available earnings	$	211	$	320
Fixed charges:
Interest expense incurred	$	83	$	86
Amortization of debt expense	2		2
Interest portion of rental expense	2		2
Total fixed charges	87		90
Dividends on preference shares (pretax)	13		14
Total fixed charges and preference dividends	$	100	$	104
Ratio of earnings to fixed charges	2.43		3.56
Ratio of earnings to combined fixed charges and preference dividends	2.11		3.08

EX-31

EXHIBIT 31

Certification Pursuant to Rule 13a-14(a)

Under the Securities Exchange Act of 1934

I, Doyle R. Simons, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Weyerhaeuser Company.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report.

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2015
/s/ DOYLE R. SIMONS
Doyle R. Simons President and Chief Executive Officer

I, Patricia M. Bedient, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Weyerhaeuser Company.

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report.

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report.

4. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a–15(e) and 15d–15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting.

5. The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a) all significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b) any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	May 1, 2015
/s/ PATRICIA M. BEDIENT
Patricia M. Bedient Executive Vice President and Chief Financial Officer

EX-32

EXHIBIT 32

Certification Pursuant to Rule 13a-14(b)

Under the Securities Exchange Act of 1934 and

Section 1350, Chapter 63 of Title 18, United States Code

Pursuant to Rule 13a-14(b) under the Securities Exchange Act of 1934 and section 1350, chapter 63 of title 18, United States Code, each of the undersigned officers of Weyerhaeuser Company, a Washington corporation (the “Company”), hereby certifies that:

The Company’s Quarterly Report on Form 10-Q dated May 1, 2015 (the “Form 10-Q”) fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934 and information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ DOYLE R. SIMONS
Doyle R. Simons President and Chief Executive Officer
Dated:	May 1, 2015
/s/ PATRICIA M. BEDIENT
Patricia M. Bedient Executive Vice President and Chief Financial Officer
Dated:	May 1, 2015

The foregoing certification is being furnished solely pursuant to Rule 13a-14(b) under the Securities Exchange Act of 1934 and section 1350, chapter 63 of title 18, United States Code and is not being filed as part of the Form 10-Q or as a separate disclosure document.

XML

NET EARNINGS PER SHARE - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Aug. 13, 2014
Basic and diluted earnings per share attributable to Weyerhaeuser common shareholders	$ 0.17	$ 0.31
Stock repurchase program 2014
Stock repurchase program, shares repurchased	7,341,566
Stock repurchase program, shares repurchased value	$ 253,000,000
Stock repurchase program, authorized repurchase amount			700,000,000
Stock repurchase program, remaining authorized repurchase amount	244,000,000
Stock repurchase program, number of shares repurchased under authorization	13,404,559
Stock repurchase program, amount of repurchases made under authorization	$ 456,000,000

XML

CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]
Noncash impairment charge related to a nonstrategic asset	$ 13	$ 0
Fair Value, Inputs, Level 3 | Unallocated Items
Restructuring Cost and Reserve [Line Items]
Noncash impairment charge related to a nonstrategic asset	$ 13

XML

SHARE-BASED COMPENSATION - Weighted Average Assumptions Used in Estimating the Value of Stock Options Granted (Detail) (Stock options, USD $)	3 Months Ended
	Mar. 31, 2015 Rate
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	25.92%
Expected dividends	3.28%
Expected term (in years)	4 years 9 months 7 days
Risk-free rate	1.54%
Weighted average grant date fair value	$ 5.85

XML

OTHER OPERATING COSTS (INCOME), NET - Items Included in Other Operating Costs (Income), Net (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Gain on disposition of nonstrategic assets	$ (2)	$ (23)
Foreign exchange losses, net	29	14
Land management income	(8)	(7)
Other, net	(4)	(14)
Total other operating costs (income), net	15	(75)
U.S. and Canadian Other Postretirement Plans
Gain on postretirement plan amendment (Note 6)	$ 0	$ 45

XML

LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015
Commitments and Contingencies Disclosure [Line Items]
Accrued estimated remediation costs	$ 28
Asset retirement obligations	$ 38

XML

CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS (Tables)

3 Months Ended

Mar. 31, 2015

Restructuring Cost and Reserve [Line Items]

Items Included in Our Restructuring, Closure and Asset Impairment Charges

Items Included in Our Restructuring, Closure and Asset Impairment Charges

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014
Restructuring and closure charges:
Termination benefits	$	—	$	17
Other restructuring and closure costs	1		2
Charges for restructuring and closures	1		19
Impairments of long-lived assets	13		—
Total charges for restructuring, closures and impairments	$	14	$	19

Changes in accrued severance related to restructuring

Changes in accrued severance related to restructuring during the quarter ended March 31, 2015 were as follows:

DOLLAR AMOUNTS IN MILLIONS
Accrued severance as of December 31, 2014	$	10
Charges	—
Payments	(6		)
Accrued severance as of March 31, 2015	$	4

XML

INCOME TAXES - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015 Rate
Estimated annual effective tax rate for our Taxable REIT Subsidiary	31.00%

XML

DISCONTINUED OPERATIONS (Tables)

3 Months Ended

Mar. 31, 2015

Discontinued Operations and Disposal Groups [Abstract]

Components of net sales and net earnings from discontinued operations

The following table summarizes the components of net sales and net earnings from discontinued operations.

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2014
Net sales from discontinued operations	$	248
Income from operations	$	16
Income taxes	(6		)
Net earnings from discontinued operations	$	10

XML

SHARE-BASED COMPENSATION - Weighted Average Assumptions Used to Remeasure the Value of Stock Appreciation Rights (Detail) (Stock appreciation rights, USD $)	3 Months Ended
	Mar. 31, 2015 Rate
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected volatility	19.55%
Expected dividends	3.36%
Expected term (in years)	1 year 11 months 27 days
Risk-free rate	0.58%
Weighted average fair value	$ 10.75

XML

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Components of Net Periodic Benefit Costs (Credits) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost(1)	$ 15	$ 14
Interest cost	65	69
Expected return on plan assets	(118)	(116)
Amortization of actuarial loss	44	31
Amortization of prior service cost (credit)	1	1
Total net periodic benefit cost (credit)	7	(1)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	3	3
Amortization of actuarial loss	2	3
Amortization of prior service cost (credit)	(2)	(48)
Other	0	(4)
Total net periodic benefit cost (credit)	3	(46)
Real Estate Divestiture | Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost(1)		$ 1

XML

DISCONTINUED OPERATIONS - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Sep. 30, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Common stock in exchange for the distribution of shares of Weyerhaeuser Real Estate Company (WRECO) to our shareholders	59
Real Estate Divestiture
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net cash proceeds	707

XML

CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS - Items Included in Our Restructuring, Closure and Asset Impairment Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Restructuring and closure charges:
Termination benefits	$ 0	$ 17
Other restructuring and closure costs	1	2
Charges for restructuring and closures	1	19
Impairments of long-lived assets	13	0
Total charges for restructuring, closures and impairments	$ 14	$ 19

XML

CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) - Items Included in Cumulative Other Comprehensive Income (Loss) (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Beginning balance	$ (1,393)
Other comprehensive income (loss) before reclassifications	(5)
Income taxes	(10)
Net other comprehensive income (loss) before reclassifications	(15)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	45
Income taxes	(16)
Net amounts reclassified from cumulative other comprehensive income (loss)	29
Total other comprehensive income (loss)	14	(15)
Ending balance	(1,379)
Foreign currency translation adjustments
Beginning balance	304
Other comprehensive income (loss) before reclassifications	(47)
Income taxes	0
Net other comprehensive income (loss) before reclassifications	(47)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	0
Income taxes	0
Net amounts reclassified from cumulative other comprehensive income (loss)	0
Total other comprehensive income (loss)	(47)
Ending balance	257
Actuarial losses | Pension
Beginning balance	(1,623)
Other comprehensive income (loss) before reclassifications	40
Income taxes	(10)
Net other comprehensive income (loss) before reclassifications	30
Amounts reclassified from cumulative other comprehensive income (loss)(1)	44
Income taxes	(15)
Net amounts reclassified from cumulative other comprehensive income (loss)	29
Total other comprehensive income (loss)	59
Ending balance	(1,564)
Actuarial losses | Other Postretirement Benefits
Beginning balance	(108)
Other comprehensive income (loss) before reclassifications	2
Income taxes	0
Net other comprehensive income (loss) before reclassifications	2
Amounts reclassified from cumulative other comprehensive income (loss)(1)	2
Income taxes	(1)
Net amounts reclassified from cumulative other comprehensive income (loss)	1
Total other comprehensive income (loss)	3
Ending balance	(105)
Prior service credits (costs) | Pension
Beginning balance	(15)
Other comprehensive income (loss) before reclassifications	0
Income taxes	0
Net other comprehensive income (loss) before reclassifications	0
Amounts reclassified from cumulative other comprehensive income (loss)(1)	1
Income taxes	0
Net amounts reclassified from cumulative other comprehensive income (loss)	1
Total other comprehensive income (loss)	1
Ending balance	(14)
Prior service credits (costs) | Other Postretirement Benefits
Beginning balance	43
Other comprehensive income (loss) before reclassifications	(1)
Income taxes	0
Net other comprehensive income (loss) before reclassifications	(1)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	(2)
Income taxes	0
Net amounts reclassified from cumulative other comprehensive income (loss)	(2)
Total other comprehensive income (loss)	(3)
Ending balance	40
Unrealized gains on available-for-sale securities
Beginning balance	6
Other comprehensive income (loss) before reclassifications	1
Income taxes	0
Net other comprehensive income (loss) before reclassifications	1
Amounts reclassified from cumulative other comprehensive income (loss)(1)	0
Income taxes	0
Net amounts reclassified from cumulative other comprehensive income (loss)	0
Total other comprehensive income (loss)	1
Ending balance	$ 7

XML

BASIS OF PRESENTATION

3 Months Ended

Mar. 31, 2015

Organization, Consolidation and Presentation of Financial Statements [Abstract]

BASIS OF PRESENTATION

BASIS OF PRESENTATION

We are a corporation that has elected to be taxed as a real estate investment trust (REIT). We expect to derive most of our REIT income from investments in timberlands, including the sale of standing timber. REIT income can be distributed to shareholders without first paying corporate level tax, substantially eliminating the double taxation on income. A significant portion of our timberland segment earnings receives this favorable tax treatment. We are, however, subject to corporate taxes on built-in-gains (the excess of fair market value over tax basis at January 1, 2010) on sales of real property (other than standing timber) held by the REIT during the first 10 years following the REIT conversion. We continue to be required to pay federal corporate income taxes on earnings of our Taxable REIT Subsidiary (TRS), which principally includes our manufacturing businesses and the portion of our Timberlands segment income included in the TRS.

Our consolidated financial statements provide an overall view of our results and financial condition. They include our accounts and the accounts of entities we control, including:

• majority-owned domestic and foreign subsidiaries and

• variable interest entities in which we are the primary beneficiary.

They do not include our intercompany transactions and accounts, which are eliminated, and noncontrolling interests are presented as a separate component of equity.

We account for investments in and advances to unconsolidated equity affiliates using the equity method, with taxes provided on undistributed earnings. This means that we record earnings and accrue taxes in the period earnings are recognized by our unconsolidated equity affiliates.

Throughout these Notes to Consolidated Financial Statements, unless specified otherwise, references to “Weyerhaeuser,” “we” and “our” refer to the consolidated company.

The accompanying unaudited Consolidated Financial Statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of our financial position, results of operations and cash flows for the interim periods presented. Except as otherwise disclosed in these Notes to Consolidated Financial Statements, such adjustments are of a normal, recurring nature. The Consolidated Financial Statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission pertaining to interim financial statements; certain disclosures normally provided in accordance with accounting principles generally accepted in the United States have been omitted. These Consolidated Financial Statements should be read in conjunction with the Consolidated Financial Statements and Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2014. Results of operations for interim periods should not be regarded as necessarily indicative of the results that may be expected for the full year.

RECLASSIFICATIONS

We have reclassified certain balances and results from the prior year to be consistent with our 2015 reporting. This makes year-to-year comparisons easier. Our reclassifications had no effect on net earnings or equity. Our reclassifications present the results of operations discontinued in 2014 separately on our Consolidated Statement of Operations and in the related footnotes. Note 3: Discontinued Operations provides information about our discontinued operations.

NEW ACCOUNTING PRONOUNCEMENTS

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09, a comprehensive new revenue recognition model that requires an entity to recognize revenue to depict the transfer of goods or services to customers at an amount that reflects the consideration it expects to receive in exchange for those goods or services. We plan to adopt the standard when required and may use either the retrospective or cumulative effect transition method. We are evaluating the impact that ASU 2014-09 will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor determined the effect of the standard on our ongoing financial reporting.

In April 2015, FASB issued ASU 2015-03, which amends the presentation of debt issuance costs on the consolidated balance sheet. Under the new guidance, debt issuance costs are presented as a direct deduction from the carrying amount of the debt liability rather than as an asset. The new guidance is effective retrospectively for fiscal periods starting after December 15, 2015 and early adoption is permitted. We expect to adopt ASU 2015-03 on January 1, 2016 and have determined that its adoption will not have a material impact on our consolidated financial statements and related disclosures at that time.

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Registered Canadian Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2015	$ 38
Non Registered Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2015	3
U.S. Non-Qualified Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2015	19
U.S. and Canadian Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Recognized gain for plan amendment	0	(45)
Expected contribution to benefit plans during 2015	26
U.S. Qualified Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2015	$ 0

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ACCRUED LIABILITIES (Tables)

3 Months Ended

Mar. 31, 2015

Accrued Liabilities

Accrued liabilities were comprised of the following:

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015		DECEMBER 31, 2014
Wages, salaries and severance pay	$	118	$	161
Pension and other postretirement benefits	47		47
Vacation pay	49		47
Taxes – Social Security and real and personal property	30		24
Interest	74		105
Customer rebates and volume discounts	34		46
Deferred income	70		75
Other	111		82
Total	$	533	$	587

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

3 Months Ended

Mar. 31, 2015

Components of Net Periodic Benefit Costs (Credits)

The components of net periodic benefit costs (credits) are:

	PENSION
	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Service cost(1)	$	15		$	14
Interest cost	65			69
Expected return on plan assets	(118		)	(116		)
Amortization of actuarial loss	44			31
Amortization of prior service cost	1			1
Total net periodic benefit cost (credit)	$	7		$	(1	)

(1) Service cost includes $1 million for quarter ended 2014 for employees that were part of the Real Estate Divestiture. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Interest cost	$	3		$	3
Amortization of actuarial loss	2			3
Amortization of prior service credit	(2		)	(48		)
Other	—			(4		)
Total net periodic benefit cost (credit)	$	3		$	(46	)

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OTHER OPERATING COSTS (INCOME), NET - Additional Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Gain on disposition of nonstrategic assets	$ 2	$ 23
Landfill in Washington State
Gain on disposition of nonstrategic assets		$ 22

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ACCRUED LIABILITIES - Accrued Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Wages, salaries and severance pay	$ 118	$ 161
Pension and other postretirement benefits	47	47
Vacation pay	49	47
Taxes – Social Security and real and personal property	30	24
Interest	74	105
Customer rebates and volume discounts	34	46
Deferred income	70	75
Other	111	82
Total	$ 533	$ 587

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

3 Months Ended

Mar. 31, 2015

Estimated Fair Values and Carrying Values of Long-Term Debt

The estimated fair values and carrying values of our long-term debt consisted of the following:

	MARCH 31, 2015				DECEMBER 31, 2014
DOLLAR AMOUNTS IN MILLIONS	CARRYING  VALUE		FAIR VALUE (LEVEL 2)		CARRYING  VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities)	$	4,891	$	5,991	$	4,891	$	5,922

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CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

3 Months Ended

Mar. 31, 2015

Changes in amounts included in our cumulative other comprehensive income (loss) by component

Changes in amounts included in our cumulative other comprehensive income (loss) by component are:

				PENSION						OTHER POSTRETIREMENT BENEFITS
DOLLAR AMOUNTS IN MILLIONS	Foreign currency translation adjustments			Actuarial losses			Prior service costs			Actuarial losses			Prior service credits			Unrealized gains on available-for-sale securities		Total
Beginning balance as of December 31, 2014	$	304		$	(1,623	)	$	(15	)	$	(108	)	$	43		$	6	$	(1,393	)
Other comprehensive income (loss) before reclassifications	(47		)	40			—			2			(1		)	1		(5		)
Income taxes	—			(10		)	—			—			—			—		(10		)
Net other comprehensive income (loss) before reclassifications	(47		)	30			—			2			(1		)	1		(15		)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	—			44			1			2			(2		)	—		45
Income taxes	—			(15		)	—			(1		)	—			—		(16		)
Net amounts reclassified from cumulative other comprehensive income (loss)	—			29			1			1			(2		)	—		29
Total other comprehensive income (loss)	(47		)	59			1			3			(3		)	1		14
Ending balance as of March 31, 2015	$	257		$	(1,564	)	$	(14	)	$	(105	)	$	40		$	7	$	(1,379	)
(1) Actuarial losses and prior service credits (cost) are included in the computation of net periodic benefit costs (credits). See Note 6: Pension and Other Postretirement Benefit Plans.

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CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Interest, amount capitalized	$ 1	$ 5

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SHARE-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2015

Weighted Average Assumptions Used in Estimating the Value of Stock Options Granted

Weighted Average Assumptions Used in Estimating the Value of Stock Options Granted in 2015

	OPTIONS
Expected volatility	25.92		%
Expected dividends	3.28		%
Expected term (in years)	4.77
Risk-free rate	1.54		%
Weighted average grant date fair value	$	5.85

Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted

Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted in 2015

	Performance Share Units
Performance period	1/1/2015 – 12/31/2017
Valuation date closing stock price	$	35.41
Expected dividends	3.26					%
Risk-free rate	0.05		%	–	1.07	%
Expected volatility	16.04		%	–	20.89	%

Weighted Average Assumptions Used to Remeasure the Value of Stock Appreciation Rights

Weighted Average Assumptions Used to Remeasure the Value of Stock Appreciation Rights as of March 31, 2015

	MARCH 31, 2015
Expected volatility	19.55		%
Expected dividends	3.36		%
Expected term (in years)	1.99
Risk-free rate	0.58		%
Weighted average fair value	$	10.75

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INVENTORIES - Inventories (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Inventory [Line Items]
Total	$ 645	$ 595
Logs and chips
Inventory [Line Items]
LIFO inventories	20	9
FIFO or moving average cost inventories	48	38
Lumber, plywood and panels
Inventory [Line Items]
LIFO inventories	74	55
Lumber, plywood, panels and engineered wood products
Inventory [Line Items]
FIFO or moving average cost inventories	85	80
Pulp and paperboard
Inventory [Line Items]
LIFO inventories	128	122
FIFO or moving average cost inventories	34	35
Other products
Inventory [Line Items]
LIFO inventories	15	11
FIFO or moving average cost inventories	92	96
Materials and supplies
Inventory [Line Items]
FIFO or moving average cost inventories	$ 149	$ 149

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CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS - Changes in accrued severance related to restructuring (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]
Accrued severance as of December 31, 2014	$ 10
Charges	0	17
Payments	(6)
Accrued severance as of March 31, 2015	$ 4

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CONSOLIDATED STATEMENT OF OPERATIONS (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net sales	$ 1,721	$ 1,736
Cost of products sold	1,385	1,361
Gross margin	336	375
Selling expenses	28	28
General and administrative expenses	74	88
Research and development expenses	5	7
Charges for restructuring, closures and impairments (Note 12)	14	19
Other operating costs (income), net (Note 13)	15	(75)
Operating income	200	308
Interest income and other	3	9
Interest expense, net of capitalized interest	(83)	(83)
Earnings before income taxes	120	234
Income taxes (Note 14)	(19)	(50)
Earnings from continuing operations	101	184
Earnings from discontinued operations, net of income taxes (Note 3)	0	10
Net earnings	101	194
Dividends on preference shares	(11)	(11)
Net earnings attributable to Weyerhaeuser common shareholders	$ 90	$ 183
Earnings per share attributable to Weyerhaeuser common shareholders, basic and diluted (Note 4):
Continuing operations	$ 0.17	$ 0.29
Discontinued operations	$ 0.00	$ 0.02
Net earnings per share	$ 0.17	$ 0.31
Dividends paid per share	$ 0.29	$ 0.22
Weighted average shares outstanding (in thousands) (Note 4):
Basic	523,426	584,915
Diluted	527,423	589,312

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FAIR VALUE OF FINANCIAL INSTRUMENTS - Estimated Fair Values and Carrying Values of Long-Term Debt (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term Debt	$ 4,891	$ 4,891
Fair Value, Inputs, Level 2
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term Debt, Fair Value	$ 5,991	$ 5,922

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CONSOLIDATED BALANCE SHEET (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Receivables, allowances	$ 3	$ 3
Property and equipment, accumulated depreciation	$ 6,304	$ 6,324
Common shares, par value	$ 1.25	$ 1.25
Common shares, authorized	1,360,000,000	1,360,000,000
Common shares, issued	518,735,116	524,474,315
Common shares, outstanding	518,735,116	524,474,315
6.375 percent Mandatory Convertible Preference Shares, Series A
Preference shares, par value	$ 1.00	$ 1.00
Preference shares, liquidation	$ 50.00	$ 50.00
Preference shares, authorized	40,000,000	40,000,000
Preference shares, issued	13,800,000	13,800,000
Preference shares, outstanding	13,800,000	13,800,000

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BUSINESS SEGMENTS - Reconciliation from Segment Totals to Consolidated (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	$ 1,721	$ 1,736
Net contribution to earnings	203	333
Interest expense, net of capitalized interest (continuing and discontinued operations)	(83)	(83)
Income before income taxes (continuing and discontinued operations)	120	250
Income taxes (continuing and discontinued operations)	(19)	(56)
Net earnings	101	194
Dividends on preference shares	(11)	(11)
Net earnings attributable to Weyerhaeuser common shareholders	90	183
Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	1,721	1,736
Discontinued operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net contribution to earnings	0	16
Operating segments | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	1,968	1,993
Net contribution to earnings	257	282
Operating segments | Timberlands | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	351	377
Net contribution to earnings	162	164
Operating segments | Wood Products | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	923	898
Net contribution to earnings	62	64
Operating segments | Cellulose Fibers | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	447	461
Net contribution to earnings	33	54
Operating intersegments | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	247	257
Operating intersegments | Timberlands | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	228	238
Operating intersegments | Wood Products | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	19	19
Intersegment eliminations | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net sales	(247)	(257)
Unallocated Items | Continuing operations
Segment Reporting, Revenue Reconciling Item [Line Items]
Net contribution to earnings	$ (54)	$ 35

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INCOME TAXES

3 Months Ended

Mar. 31, 2015

INCOME TAXES

INCOME TAXES

As a REIT, we generally are not subject to corporate level tax on income of the REIT that is distributed to shareholders. We are, however, subject to corporate taxes on built-in-gains (the excess of fair market value over tax basis at January 1, 2010) on sales of real property (other than standing timber) held by the REIT during the first 10 years following the REIT conversion. We continue to be required to pay federal corporate income taxes on earnings of our TRS, which includes our manufacturing businesses and the portion of our Timberlands segment income included in the TRS.

The 2015 provision for income taxes is based on the current estimate of the annual effective tax rate. Our 2015 estimated annual effective tax rate for our TRS is approximately 31 percent, which is lower than the statutory federal tax rate primarily due to permanent tax deductions and lower foreign tax rates applicable to foreign earnings, partially offset by state income taxes.

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DISCONTINUED OPERATIONS - Components of net sales and net earnings from discontinued operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net sales from discontinued operations	$ 248
Income from operations	16
Income taxes	(6)
Net earnings from discontinued operations	$ 10

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BUSINESS SEGMENTS (Tables)

3 Months Ended

Mar. 31, 2015

Reconciliation of Revenue from Segments to Consolidated

An analysis and reconciliation of our business segment information to the respective information in the Consolidated Financial Statements is as follows:

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Sales to unaffiliated customers:
Timberlands	$	351		$	377
Wood Products	923			898
Cellulose Fibers	447			461
	1,721			1,736
Intersegment sales:
Timberlands	228			238
Wood Products	19			19
	247			257
Total sales	1,968			1,993
Intersegment eliminations	(247		)	(257		)
Total	$	1,721		$	1,736
Net contribution to earnings:
Timberlands	$	162		$	164
Wood Products	62			64
Cellulose Fibers	33			54
	257			282
Unallocated Items(1)	(54		)	35
Net contribution to earnings from discontinued operations	—			16
Net contribution to earnings	203			333
Interest expense, net of capitalized interest (continuing and discontinued operations)	(83		)	(83		)
Income before income taxes (continuing and discontinued operations)	120			250
Income taxes (continuing and discontinued operations)	(19		)	(56		)
Net earnings	101			194
Dividends on preference shares	(11		)	(11		)
Net earnings attributable to Weyerhaeuser common shareholders	$	90		$	183

(1) Unallocated Items are gains or charges not related to or allocated to an individual operating segment. They include a portion of items such as: share-based compensation, pension and postretirement costs, foreign exchange transaction gains and losses associated with financing and the elimination of intersegment profit in inventory and the LIFO reserve.

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CONSOLIDATED STATEMENT OF CASH FLOWS (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Cash flows from operations:
Net earnings	$ 101		$ 194
Noncash charges (credits) to earnings:
Depreciation, depletion and amortization	123		126
Deferred income taxes, net	13		36
Pension and other postretirement benefits (Note 6)	10		(47)
Share-based compensation expense	8		9
Charges for impairment of assets	13		0
Net gains on dispositions of assets(1)	(16)	[1]	(25)	[1]
Foreign exchange transaction losses (Note 13)	29		14
Change in:
Receivables less allowances	(16)		(1)
Receivable for taxes	2		67
Inventories	(57)		(88)
Real estate and land	0		(72)
Prepaid expenses	(11)		3
Accounts payable and accrued liabilities	(91)		(80)
Deposits on land positions and other assets	0		12
Pension and postretirement contributions / benefit payments	(20)		(33)
Other	(11)		(6)
Net cash from operations	77		109
Cash flows from investing activities:
Property and equipment	(71)		(51)
Timberlands reforestation	(18)		(14)
Acquisition of timberlands	(32)		0
Proceeds from sale of assets	2		19
Cash from investing activities	(119)		(46)
Cash flows from financing activities:
Cash dividends on common shares	(152)		(129)
Change in book overdrafts	0		(6)
Exercises of stock options	21		15
Repurchase of common stock (Note 4)	(253)		0
Other	4		2
Cash from financing activities	(380)		(118)
Net change in cash and cash equivalents	(422)		(55)
Cash and cash equivalents at beginning of period	1,580		835
Cash and cash equivalents at end of period	1,158		780
Cash paid (received) during the period for:
Interest, net of amount capitalized of $1 and $5	114		101
Income taxes	$ 1		$ (50)

[1] Includes gains on timberland exchanges.

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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Consolidated net earnings	$ 101	$ 194
Other comprehensive income (loss):
Foreign currency translation adjustments	(47)	(22)
Actuarial gains, net of tax expense of $26 and $15	62	36
Prior service costs, net of tax benefit of $0 and $18	(2)	(29)
Unrealized gains on available-for-sale securities	1	0
Total other comprehensive income (loss)	14	(15)
Comprehensive income	$ 115	$ 179

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LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

3 Months Ended

Mar. 31, 2015

LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

This note provides details about our:

• legal proceedings and

• environmental matters.

LEGAL PROCEEDINGS

We are party to various legal proceedings arising in the ordinary course of business. We are not currently a party to any legal proceeding that management believes could have a material adverse effect on our long-term consolidated financial position, results of operations or cash flows.

ENVIRONMENTAL MATTERS

Our environmental matters include:

• site remediation and

• asset retirement obligations.

Site Remediation

Under the Comprehensive Environmental Response Compensation and Liability Act – commonly known as the Superfund – and similar state laws, we:

• are a party to various proceedings related to the cleanup of hazardous waste sites and

• have been notified that we may be a potentially responsible party related to the cleanup of other hazardous waste sites for which proceedings have not yet been initiated.

As of March 31, 2015, our total accrual for future estimated remediation costs on the active Superfund sites and other sites for which we are responsible was approximately $28 million. These reserves are recorded in "Accrued liabilities" and "Other liabilities" in our Consolidated Balance Sheet. The accrual has not changed materially since the end of 2014.

Asset Retirement Obligations

We have obligations associated with the retirement of tangible long-lived assets consisting primarily of reforestation obligations related to forest management licenses in Canada and obligations to close and cap landfills. As of March 31, 2015, our total accruals for these obligations was $38 million. These obligations are recorded in "Accrued liabilities" and "Other liabilities" in our Consolidated Balance Sheet. The accruals have not changed materially since the end of 2014.

Some of our sites have materials containing asbestos. We have met our current legal obligation to identify and manage these materials. In situations where we cannot reasonably determine when materials containing asbestos might be removed from the sites, we have not recorded an accrual because the fair value of the obligation cannot be reasonably estimated.

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Document and Entity Information	3 Months Ended
	Mar. 31, 2015	Apr. 24, 2015
Document Information [Line Items]
Entity Registrant Name	WEYERHAEUSER CO
Trading Symbol	WY
Entity Central Index Key	0000106535
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Amendment Flag	false
Entity Common Stock, Shares Outstanding		517,745,024

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CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)

3 Months Ended

Mar. 31, 2015

CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)

CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)

Changes in amounts included in our cumulative other comprehensive income (loss) by component are:

				PENSION						OTHER POSTRETIREMENT BENEFITS
DOLLAR AMOUNTS IN MILLIONS	Foreign currency translation adjustments			Actuarial losses			Prior service costs			Actuarial losses			Prior service credits			Unrealized gains on available-for-sale securities		Total
Beginning balance as of December 31, 2014	$	304		$	(1,623	)	$	(15	)	$	(108	)	$	43		$	6	$	(1,393	)
Other comprehensive income (loss) before reclassifications	(47		)	40			—			2			(1		)	1		(5		)
Income taxes	—			(10		)	—			—			—			—		(10		)
Net other comprehensive income (loss) before reclassifications	(47		)	30			—			2			(1		)	1		(15		)
Amounts reclassified from cumulative other comprehensive income (loss)(1)	—			44			1			2			(2		)	—		45
Income taxes	—			(15		)	—			(1		)	—			—		(16		)
Net amounts reclassified from cumulative other comprehensive income (loss)	—			29			1			1			(2		)	—		29
Total other comprehensive income (loss)	(47		)	59			1			3			(3		)	1		14
Ending balance as of March 31, 2015	$	257		$	(1,564	)	$	(14	)	$	(105	)	$	40		$	7	$	(1,379	)
(1) Actuarial losses and prior service credits (cost) are included in the computation of net periodic benefit costs (credits). See Note 6: Pension and Other Postretirement Benefit Plans.

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CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Parenthetical) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Tax expense of actuarial gains	$ 26	$ 15
Tax benefit of prior service costs	$ 0	$ (18)

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NET EARNINGS PER SHARE

3 Months Ended

Mar. 31, 2015

NET EARNINGS PER SHARE

NET EARNINGS PER SHARE

Our basic and diluted earnings per share attributable to Weyerhaeuser shareholders were:

• $0.17 during first quarter 2015; and

• $0.31 during first quarter 2014.

Basic earnings per share is net earnings available to common shareholders divided by the weighted average number of our outstanding common shares, including stock equivalent units where there is no circumstance under which those shares would not be issued.

Diluted earnings per share is net earnings available to common shareholders divided by the sum of the:

• weighted average number of our outstanding common shares and

• the effect of our outstanding dilutive potential common shares.

Dilutive potential common shares can include:

• outstanding stock options,

• restricted stock units,

• performance share units and

• preference shares.

We use the treasury stock method to calculate the effect of our outstanding stock options, restricted stock units and performance share units. Share-based payment awards that are contingently issuable upon the achievement of specified performance or market conditions are included in our diluted earnings per share calculation in the period in which the conditions are satisfied.

We use the if-converted method to calculate the effect of our outstanding preference shares. In applying the if-converted method, conversion is not assumed for purposes of computing diluted earnings per share if the effect would be antidilutive. Preference shares are antidilutive whenever the amount of the dividend declared in or accumulated for the current period per common share obtainable on conversion exceeds diluted earnings per share exclusive of the preference shares.

Preference shares are evaluated for participation on a quarterly basis to determine whether two-class presentation is required. Preference shares are considered to be participating as of the financial reporting period end to the extent they would participate in dividends paid to common shareholders. Preference shares are not considered participating for the quarter ended March 31, 2015. Under the provisions of the two-class method, basic and diluted earnings per share would be presented for both preference and common shareholders.

SHARES EXCLUDED FROM DILUTIVE EFFECT

The following shares were not included in the computation of diluted earnings per share because they were either antidilutive or the required performance or market conditions were not met. Some or all of these shares may be dilutive potential common shares in future periods.

Potential Shares Not Included in the Computation of Diluted Earnings per Share

	QUARTER ENDED
SHARES IN THOUSANDS	MARCH 2015	MARCH 2014
Stock options	1,128	5,695
Performance share units	358	446
Preference shares	24,988	24,865

STOCK REPURCHASE PROGRAM

During first quarter 2015, we repurchased 7,341,566 shares of common stock for $253 million under the 2014 stock repurchase program which was approved on August 13, 2014 by our Board of Directors under which we are authorized to repurchase up to $700 million of outstanding shares. All common stock purchases under the stock repurchase program were made in open-market transactions. As of March 31, 2015, we had remaining authorization of $244 million for future stock repurchases. In total, we repurchased 13,404,559 shares of common stock for $456 million under the 2014 stock repurchase program.

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DISCONTINUED OPERATIONS

3 Months Ended

Mar. 31, 2015

Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]

DISCONTINUED OPERATIONS

DISCONTINUED OPERATIONS

On July 7, 2014, we completed the divestiture of our homebuilding and real estate development business, pursuant to which WRECO became a wholly-owned subsidiary of TRI Pointe Homes, Inc. (TRI Pointe). At that time we distributed shares of WRECO to our shareholders in exchange for 59 million shares of our common stock and received net cash proceeds of $707 million. This transactions is referred to as the “Real Estate Divestiture”. Prior to the distribution of WRECO shares to our shareholders, WRECO was a wholly-owned subsidiary of Weyerhaeuser. Concurrent with the distribution to shareholders, WRECO ceased being a subsidiary. Discontinued operations relates to WRECO which was previously reported under the Real Estate segment and Unallocated Items.

The following table summarizes the components of net sales and net earnings from discontinued operations.

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2014
Net sales from discontinued operations	$	248
Income from operations	$	16
Income taxes	(6		)
Net earnings from discontinued operations	$	10

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BASIS OF PRESENTATION (Policies)

3 Months Ended

Mar. 31, 2015

Consolidation, Policy

Our consolidated financial statements provide an overall view of our results and financial condition. They include our accounts and the accounts of entities we control, including:

• majority-owned domestic and foreign subsidiaries and

• variable interest entities in which we are the primary beneficiary.

They do not include our intercompany transactions and accounts, which are eliminated, and noncontrolling interests are presented as a separate component of equity.

We account for investments in and advances to unconsolidated equity affiliates using the equity method, with taxes provided on undistributed earnings. This means that we record earnings and accrue taxes in the period earnings are recognized by our unconsolidated equity affiliates.

Throughout these Notes to Consolidated Financial Statements, unless specified otherwise, references to “Weyerhaeuser,” “we” and “our” refer to the consolidated company.

New Accounting Pronouncements, Policy

NEW ACCOUNTING PRONOUNCEMENTS

In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2014-09, a comprehensive new revenue recognition model that requires an entity to recognize revenue to depict the transfer of goods or services to customers at an amount that reflects the consideration it expects to receive in exchange for those goods or services. We plan to adopt the standard when required and may use either the retrospective or cumulative effect transition method. We are evaluating the impact that ASU 2014-09 will have on our consolidated financial statements and related disclosures. We have not yet selected a transition method nor determined the effect of the standard on our ongoing financial reporting.

In April 2015, FASB issued ASU 2015-03, which amends the presentation of debt issuance costs on the consolidated balance sheet. Under the new guidance, debt issuance costs are presented as a direct deduction from the carrying amount of the debt liability rather than as an asset. The new guidance is effective retrospectively for fiscal periods starting after December 15, 2015 and early adoption is permitted. We expect to adopt ASU 2015-03 on January 1, 2016 and have determined that its adoption will not have a material impact on our consolidated financial statements and related disclosures at that time.

Earnings Per Share, Policy

We use the treasury stock method to calculate the effect of our outstanding stock options, restricted stock units and performance share units. Share-based payment awards that are contingently issuable upon the achievement of specified performance or market conditions are included in our diluted earnings per share calculation in the period in which the conditions are satisfied.

We use the if-converted method to calculate the effect of our outstanding preference shares. In applying the if-converted method, conversion is not assumed for purposes of computing diluted earnings per share if the effect would be antidilutive. Preference shares are antidilutive whenever the amount of the dividend declared in or accumulated for the current period per common share obtainable on conversion exceeds diluted earnings per share exclusive of the preference shares.

Preference shares are evaluated for participation on a quarterly basis to determine whether two-class presentation is required. Preference shares are considered to be participating as of the financial reporting period end to the extent they would participate in dividends paid to common shareholders. Preference shares are not considered participating for the quarter ended March 31, 2015. Under the provisions of the two-class method, basic and diluted earnings per share would be presented for both preference and common shareholders.

Fair Value of Financial Instruments, Policy

To estimate the fair value of long-term debt, we used the following valuation approaches:

• market approach – based on quoted market prices we received for the same types and issues of our debt; or

• income approach – based on the discounted value of the future cash flows using market yields for the same type and comparable issues of debt.

The inputs to these valuations are based on market data obtained from independent sources or information derived principally from observable market data.

The difference between the fair value and the carrying value represents the theoretical net premium or discount we would pay or receive to retire all debt at the measurement date.

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SHARE-BASED COMPENSATION

3 Months Ended

Mar. 31, 2015

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION

In first quarter 2015, we granted 2,122,608 stock options, 433,469 restricted stock units, 238,662 performance share units and 58,373 stock appreciation rights. In addition, 339,413 outstanding restricted stock units and 222,257 outstanding performance share units vested during first quarter 2015. A total of 1,389,787 shares of common stock were issued as a result of restricted stock unit vesting, performance share unit vesting and stock option exercises.

STOCK OPTIONS

The weighted average exercise price of all of the stock options granted in 2015 was $35.41. The vesting and post-termination vesting terms for stock options granted in 2015 were as follows:

• vest ratably over four years;

• vest or continue to vest in the event of death while employed, disability or retirement at an age of at least 62;

• continue to vest upon retirement at an age of at least 62, but a portion of the grant is forfeited if retirement occurs before the one year anniversary of the grant;

• continue to vest for one year in the event of involuntary termination when the retirement criteria has not been met; and

• stop vesting for all other situations including early retirement prior to age 62.

Weighted Average Assumptions Used in Estimating the Value of Stock Options Granted in 2015

	OPTIONS
Expected volatility	25.92		%
Expected dividends	3.28		%
Expected term (in years)	4.77
Risk-free rate	1.54		%
Weighted average grant date fair value	$	5.85

RESTRICTED STOCK UNITS

The weighted average fair value of the restricted stock units granted in 2015 was $35.41. The vesting provisions for restricted stock units granted in 2015 were as follows:

• vest ratably over four years;

• immediately vest in the event of death while employed or disability;

• continue to vest upon retirement at an age of at least 62, but a portion of the grant is forfeited if retirement occurs before the one year anniversary of the grant;

• continue vesting for one year in the event of involuntary termination when the retirement criteria has not been met; and

• will be forfeited upon termination of employment in all other situations including early retirement prior to age 62.

PERFORMANCE SHARE UNITS

The weighted average grant date fair value of performance share units granted in 2015 was $34.75.

The final number of shares granted in 2015 will range from 0 percent to 150 percent of each grant's target, depending upon actual company performance.

The ultimate number of performance share units earned is based on two measures:

• our relative total shareholder return (TSR) ranking measured against the S&P 500 over a three year period and

• our relative TSR ranking measured against an industry peer group of companies over a three year period.

The vesting provisions for performance share units granted in 2015 were as follows:

• vest 100 percent on the third anniversary of the grant date as long as the individual remains employed by the company;

• fully vest in the event the participant dies or becomes disabled while employed;

• continue to vest upon retirement at an age of at least 62, but a portion of the grant is forfeited if retirement occurs before the one year anniversary of the grant;

• continue vesting for one year in the event of involuntary termination when the retirement criteria has not been met and the employee has met the second anniversary of the grant date; and

• will be forfeited upon termination of employment in all other situations including early retirement prior to age 62.

Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted in 2015

	Performance Share Units
Performance period	1/1/2015 – 12/31/2017
Valuation date closing stock price	$	35.41
Expected dividends	3.26					%
Risk-free rate	0.05		%	–	1.07	%
Expected volatility	16.04		%	–	20.89	%

STOCK APPRECIATION RIGHTS

Stock appreciation rights are remeasured to reflect the fair value at each reporting period. The following table shows the weighted average assumptions applied to all outstanding stock appreciation rights as of March 31, 2015.

Weighted Average Assumptions Used to Remeasure the Value of Stock Appreciation Rights as of March 31, 2015

	MARCH 31, 2015
Expected volatility	19.55		%
Expected dividends	3.36		%
Expected term (in years)	1.99
Risk-free rate	0.58		%
Weighted average fair value	$	10.75

The vesting and post-termination vesting terms for stock appreciation rights granted in 2015 are the same as for stock options described above.

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ACCRUED LIABILITIES

3 Months Ended

Mar. 31, 2015

ACCRUED LIABILITIES

ACCRUED LIABILITIES

Accrued liabilities were comprised of the following:

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015		DECEMBER 31, 2014
Wages, salaries and severance pay	$	118	$	161
Pension and other postretirement benefits	47		47
Vacation pay	49		47
Taxes – Social Security and real and personal property	30		24
Interest	74		105
Customer rebates and volume discounts	34		46
Deferred income	70		75
Other	111		82
Total	$	533	$	587

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INVENTORIES

3 Months Ended

Mar. 31, 2015

INVENTORIES

INVENTORIES

Inventories include raw materials, work-in-process and finished goods.

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015		DECEMBER 31, 2014
LIFO Inventories:
Logs and chips	$	20	$	9
Lumber, plywood and panels	74		55
Pulp and paperboard	128		122
Other products	15		11
FIFO or moving average cost inventories:
Logs and chips	48		38
Lumber, plywood, panels and engineered wood products	85		80
Pulp and paperboard	34		35
Other products	92		96
Materials and supplies	149		149
Total	$	645	$	595

LIFO – the last-in, first-out method – applies to major inventory products held at our U.S. domestic locations. We began to use the LIFO method for domestic products in the 1940s as required to conform with the tax method elected. Subsequent acquisitions of entities added new products under the FIFO - the first-in, first-out method – or moving average cost methods that have continued under those methods. The FIFO or moving average cost methods applies to the balance of our domestic raw material and product inventories as well as for all material and supply inventories and all foreign inventories. If we used FIFO for all inventories, our stated inventories would have been higher by $120 million as of both March 31, 2015 and December 31, 2014.

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

3 Months Ended

Mar. 31, 2015

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

The components of net periodic benefit costs (credits) are:

	PENSION
	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Service cost(1)	$	15		$	14
Interest cost	65			69
Expected return on plan assets	(118		)	(116		)
Amortization of actuarial loss	44			31
Amortization of prior service cost	1			1
Total net periodic benefit cost (credit)	$	7		$	(1	)

(1) Service cost includes $1 million for quarter ended 2014 for employees that were part of the Real Estate Divestiture. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Interest cost	$	3		$	3
Amortization of actuarial loss	2			3
Amortization of prior service credit	(2		)	(48		)
Other	—			(4		)
Total net periodic benefit cost (credit)	$	3		$	(46	)

During fourth quarter 2013, we decided to eliminate post-Medicare health funding for certain salaried retirees after 2014. We recognized a pretax gain of $45 million in first quarter 2014 from this plan amendment. This gain is included in "Other operating income, net" in our Consolidated Statement of Operations and reflected in the amortization of prior service credit in the table above.

FAIR VALUE OF PENSION PLAN ASSETS

As disclosed in our Annual Report on Form 10-K for the year ended December 31, 2014, the value reported for our pension plan assets at the end of 2014 was estimated. Additional information regarding the year-end values generally becomes available to us during the first half of the following year. We expect to complete the valuation of our pension plan assets during second quarter 2015. The final adjustments could affect net pension periodic benefit cost.

EXPECTED CONTRIBUTIONS AND BENEFIT PAYMENTS

In 2015 we expect to:

• be required to contribute approximately$38 millionfor our Canadian registered plan;

• be required to contribute or make benefit payments for our Canadian nonregistered plans of$3 million;

• make benefit payments of$19 millionfor our U.S. nonqualified pension plans; and

• make benefit payments of $26 million for our U.S. and Canadian other postretirement plans.

We donotanticipate making a contribution to our U.S. qualified pension plan for 2015.

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FAIR VALUE OF FINANCIAL INSTRUMENTS

3 Months Ended

Mar. 31, 2015

FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]

FAIR VALUE OF FINANCIAL INSTRUMENTS

FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair values and carrying values of our long-term debt consisted of the following:

	MARCH 31, 2015				DECEMBER 31, 2014
DOLLAR AMOUNTS IN MILLIONS	CARRYING  VALUE		FAIR VALUE (LEVEL 2)		CARRYING  VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities)	$	4,891	$	5,991	$	4,891	$	5,922

To estimate the fair value of long-term debt, we used the following valuation approaches:

• market approach – based on quoted market prices we received for the same types and issues of our debt; or

• income approach – based on the discounted value of the future cash flows using market yields for the same type and comparable issues of debt.

The inputs to these valuations are based on market data obtained from independent sources or information derived principally from observable market data.

The difference between the fair value and the carrying value represents the theoretical net premium or discount we would pay or receive to retire all debt at the measurement date.

FAIR VALUE OF OTHER FINANCIAL INSTRUMENTS

We believe that our other financial instruments, including cash and cash equivalents, short-term investments, receivables, and payables, have net carrying values that approximate their fair values with only insignificant differences. This is primarily due to:

• the short-term nature of these instruments,

• carrying short-term investments at expected net realizable value and

• the allowance for doubtful accounts.

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OTHER OPERATING COSTS (INCOME), NET (Tables)

3 Months Ended

Mar. 31, 2015

Items Included in Other Operating Costs (Income), Net

Items Included in Other Operating Costs (Income), Net

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Gain on postretirement plan amendment (Note 6)	$	—		$	(45	)
Gain on disposition of nonstrategic assets	(2		)	(23		)
Foreign exchange losses, net	29			14
Land management income	(8		)	(7		)
Other, net	(4		)	(14		)
Total other operating costs (income), net	$	15		$	(75	)

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SHARE-BASED COMPENSATION - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock issued as a result of restricted stock unit vesting, performance share unit vesting and stock option exercises	1,389,787
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	2,122,608
Weighted average exercise price of stock options granted	35.41
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	433,469
Vested	339,413
Weighted average fair value of units granted	35.41
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	238,662
Vested	222,257
Weighted average fair value of units granted	34.75
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	58,373
Minimum | Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Final number of shares awarded of each grant's target	0.00%
Maximum | Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Final number of shares awarded of each grant's target	150.00%

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OTHER OPERATING COSTS (INCOME), NET

3 Months Ended

Mar. 31, 2015

OTHER OPERATING COSTS (INCOME), NET

OTHER OPERATING COSTS (INCOME), NET

Other operating costs (income), net:

• includes both recurring and occasional income and expense items and

• can fluctuate from year to year.

Items Included in Other Operating Costs (Income), Net

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Gain on postretirement plan amendment (Note 6)	$	—		$	(45	)
Gain on disposition of nonstrategic assets	(2		)	(23		)
Foreign exchange losses, net	29			14
Land management income	(8		)	(7		)
Other, net	(4		)	(14		)
Total other operating costs (income), net	$	15		$	(75	)

Gain on disposition of nonstrategic assets in 2014 included a $22 million pretax gain recognized in first quarter 2014 on the sale of a landfill in Washington State.

Foreign exchange losses result from changes in exchange rates on transactions, primarily related to our Canadian operations.

Land management income includes income from recreational activities, land permits, grazing rights, firewood sales and other miscellaneous income related to land management activities.

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NET EARNINGS PER SHARE (Tables)

3 Months Ended

Mar. 31, 2015

Potential Shares Not Included in the Computation of Diluted Earnings per Share

Potential Shares Not Included in the Computation of Diluted Earnings per Share

	QUARTER ENDED
SHARES IN THOUSANDS	MARCH 2015	MARCH 2014
Stock options	1,128	5,695
Performance share units	358	446
Preference shares	24,988	24,865

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SHARE-BASED COMPENSATION - Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted (Detail) (Performance share units, USD $)	3 Months Ended
	Mar. 31, 2015 Rate
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	1/1/2015 – 12/31/2017
Valuation date closing stock price	$ 35.41
Expected dividends	3.26%
Risk-free rate minimum	0.05%
Risk-free rate maximum	1.07%
Expected volatility minimum	16.04%
Expected volatility maximum	20.89%

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INVENTORIES - Additional information (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Inventory [Line Items]
Increase in inventory amount if FIFO would have been used	$ 120	$ 120

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CONSOLIDATED BALANCE SHEET (USD $) In Millions, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
ASSETS
Cash and cash equivalents	$ 1,158	$ 1,580
Receivables, less allowances of $3 and $3	539	525
Receivables for taxes	23	25
Inventories (Note 5)	645	595
Prepaid expenses	95	80
Deferred tax assets	192	228
Total current assets	2,652	3,033
Property and equipment, less accumulated depreciation of $6,304 and $6,324	2,524	2,623
Construction in progress	171	131
Timber and timberlands at cost, less depletion charged to disposals	6,552	6,530
Investments in and advances to equity affiliates	183	188
Goodwill	40	40
Deferred tax assets	3	8
Other assets	269	289
Restricted financial investments held by variable interest entities	615	615
Total assets	13,009	13,457
Liabilities
Accounts payable	319	331
Accrued liabilities (Note 7)	533	587
Total current liabilities	852	918
Long-term debt (Note 8)	4,891	4,891
Long-term debt (nonrecourse to the company) held by variable interest entities	511	511
Deferred income taxes	195	206
Deferred pension and other postretirement benefits	1,249	1,319
Other liabilities	284	308
Total liabilities	7,982	8,153
Commitments and contingencies (Note 9)
Equity:
Mandatory convertible preference shares, series A: $1.00 par value; $50.00 liquidation; authorized 40,000,000 shares; issued and outstanding: 13,800,000 shares	14	14
Common shares: $1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 518,735,116 and 524,474,315 shares	648	656
Other capital	4,299	4,519
Retained earnings	1,445	1,508
Cumulative other comprehensive loss (Note 10)	(1,379)	(1,393)
Total equity	5,027	5,304
Total liabilities and equity	$ 13,009	$ 13,457

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BUSINESS SEGMENTS

3 Months Ended

Mar. 31, 2015

BUSINESS SEGMENTS

BUSINESS SEGMENTS

We are principally engaged in growing and harvesting timber and manufacturing, distributing and selling products made from trees. Our principal business segments are:

• Timberlands – which includes logs, timber, minerals, oil and gas, and international wood products;

• Wood Products – which includes softwood lumber, engineered wood products, structural panels and building materials distribution; and

• Cellulose Fibers – which includes pulp, liquid packaging board and an equity interest in a newsprint joint venture.

We have disposed of Weyerhaeuser Real Estate Company (WRECO) that is excluded from the segment results below. See Note 3: Discontinued Operations for information regarding our discontinued operations.

An analysis and reconciliation of our business segment information to the respective information in the Consolidated Financial Statements is as follows:

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015			MARCH 2014
Sales to unaffiliated customers:
Timberlands	$	351		$	377
Wood Products	923			898
Cellulose Fibers	447			461
	1,721			1,736
Intersegment sales:
Timberlands	228			238
Wood Products	19			19
	247			257
Total sales	1,968			1,993
Intersegment eliminations	(247		)	(257		)
Total	$	1,721		$	1,736
Net contribution to earnings:
Timberlands	$	162		$	164
Wood Products	62			64
Cellulose Fibers	33			54
	257			282
Unallocated Items(1)	(54		)	35
Net contribution to earnings from discontinued operations	—			16
Net contribution to earnings	203			333
Interest expense, net of capitalized interest (continuing and discontinued operations)	(83		)	(83		)
Income before income taxes (continuing and discontinued operations)	120			250
Income taxes (continuing and discontinued operations)	(19		)	(56		)
Net earnings	101			194
Dividends on preference shares	(11		)	(11		)
Net earnings attributable to Weyerhaeuser common shareholders	$	90		$	183

(1) Unallocated Items are gains or charges not related to or allocated to an individual operating segment. They include a portion of items such as: share-based compensation, pension and postretirement costs, foreign exchange transaction gains and losses associated with financing and the elimination of intersegment profit in inventory and the LIFO reserve.

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INVENTORIES (Tables)

3 Months Ended

Mar. 31, 2015

Inventories

Inventories include raw materials, work-in-process and finished goods.

DOLLAR AMOUNTS IN MILLIONS	MARCH 31, 2015		DECEMBER 31, 2014
LIFO Inventories:
Logs and chips	$	20	$	9
Lumber, plywood and panels	74		55
Pulp and paperboard	128		122
Other products	15		11
FIFO or moving average cost inventories:
Logs and chips	48		38
Lumber, plywood, panels and engineered wood products	85		80
Pulp and paperboard	34		35
Other products	92		96
Materials and supplies	149		149
Total	$	645	$	595

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NET EARNINGS PER SHARE - Potential Shares Not Included in the Computation of Diluted Earnings Per Share (Detail) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares not included in the computation of diluted earnings per share	1,128	5,695
Performance share units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares not included in the computation of diluted earnings per share	358	446
Preference shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potential shares not included in the computation of diluted earnings per share	24,988	24,865

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CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

3 Months Ended

Mar. 31, 2015

Restructuring Cost and Reserve [Line Items]

CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

Items Included in Our Restructuring, Closure and Asset Impairment Charges

	QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS	MARCH 2015		MARCH 2014
Restructuring and closure charges:
Termination benefits	$	—	$	17
Other restructuring and closure costs	1		2
Charges for restructuring and closures	1		19
Impairments of long-lived assets	13		—
Total charges for restructuring, closures and impairments	$	14	$	19

During 2015, we recognized a noncash impairment charge of $13 million related to a nonstrategic asset held in Unallocated Items. The fair value of the asset was determined using significant unobservable inputs (level 3) based on discounted cash flow model. During 2014, our restructuring and closure charges were primarily related to our selling, general and administrative cost reduction initiative to support achieving our competitive performance goals.

Changes in accrued severance related to restructuring during the quarter ended March 31, 2015 were as follows:

DOLLAR AMOUNTS IN MILLIONS
Accrued severance as of December 31, 2014	$	10
Charges	—
Payments	(6		)
Accrued severance as of March 31, 2015	$	4

The majority of the accrued severance balance as of March 31, 2015, is expected to be paid within one year.