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 SEPTEMBER 30,2017

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)
220 Occidental Avenue South Seattle, Washington	98104-7800
(Address of principal executive offices)	(Zip Code)

(206) 539-3000

(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, smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer x Accelerated filer o Non-accelerated filer o

   Smaller reporting company o Emerging growth company o

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. 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 October 23, 2017, 754,829,417 shares of the registrant’s common stock ($1.25 par value) were outstanding.

TABLE OF CONTENTS

PART I	FINANCIAL INFORMATION
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”)	19
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	36
ITEM 4.	CONTROLS AND PROCEDURES	36
PART II	OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	36
ITEM 1A.	RISK FACTORS	36
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	36
ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	36
ITEM 4.	MINE SAFETY DISCLOSURES	36
ITEM 5.	OTHER INFORMATION	36
ITEM 6.	EXHIBITS	37
	SIGNATURE	38

FINANCIAL INFORMATION

WEYERHAEUSER COMPANY

CONSOLIDATED STATEMENT OF OPERATIONS

(UNAUDITED)

	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Net sales	$	1,872		$	1,709		$	5,373		$	4,769
Costs of products sold	1,374			1,328			3,982			3,702
Gross margin	498			381			1,391			1,067
Selling expenses	22			22			66			67
General and administrative expenses	75			80			238			253
Research and development expenses	4			5			12			14
Charges for integration and restructuring, closures and asset impairments (Note 15)	14			16			178			141
Charges for product remediation (Note 16)	190			—			240			—
Other operating costs (income), net (Note 17)	(12		)	(3		)	2			(56		)
Operating income	205			261			655			648
Equity earnings from joint ventures (Note 7)	1			9			1			21
Non-operating pension and other postretirement benefit (costs) credits	(16		)	13			(46		)	37
Interest income and other	11			15			29			34
Interest expense, net of capitalized interest	(98		)	(114		)	(297		)	(323		)
Earnings from continuing operations before income taxes	103			184			342			417
Income taxes (Note 18)	27			(22		)	(31		)	(64		)
Earnings from continuing operations	130			162			311			353
Earnings from discontinued operations, net of income taxes (Note 3)	—			65			—			123
Net earnings	130			227			311			476
Dividends on preference shares (Note 5)	—			—			—			(22		)
Net earnings attributable to Weyerhaeuser common shareholders	$	130		$	227		$	311		$	454
Earnings per share attributable to Weyerhaeuser common shareholders, basic (Note 5):
Continuing operations	$	0.17		$	0.22		$	0.41		$	0.47
Discontinued operations	—			0.08			—			0.17
Net earnings per share	$	0.17		$	0.30		$	0.41		$	0.64
Earnings per share attributable to Weyerhaeuser common shareholders, diluted (Note 5):
Continuing operations	$	0.17		$	0.21		$	0.41		$	0.46
Discontinued operations	—			0.09			—			0.18
Net earnings per share	$	0.17		$	0.30		$	0.41		$	0.64
Dividends paid per share	$	0.31		$	0.31		$	0.93		$	0.93
Weighted average shares outstanding (in thousands) (Note 5):
Basic	753,535			749,587			752,301			708,395
Diluted	756,903			754,044			756,058			712,205

See accompanying Notes to Consolidated Financial Statements.

1

WEYERHAEUSER COMPANY

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME

(UNAUDITED)

	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Net earnings	$	130		$	227		$	311		$	476
Other comprehensive income (loss):
Foreign currency translation adjustments	24			(5		)	35			34
Actuarial gains, net of tax expense of $12, $15, $62 and $40	18			29			90			70
Prior service costs, net of tax benefit of $0, $0, $1 and $0	(1		)	(1		)	(5		)	(3		)
Unrealized gains on available-for-sale securities	1			—			2			1
Total other comprehensive income	42			23			122			102
Total comprehensive income	$	172		$	250		$	433		$	578

See accompanying Notes to Consolidated Financial Statements.

2

WEYERHAEUSER COMPANY

CONSOLIDATED BALANCE SHEET

(UNAUDITED)

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017			DECEMBER 31, 2016
ASSETS
Current assets:
Cash and cash equivalents	$	497		$	676
Receivables, less discounts and allowances of $1 and $1	485			390
Receivables for taxes	65			84
Inventories (Note 6)	340			358
Prepaid expenses and other current assets	130			114
Total current assets	1,517			1,622
Property and equipment, less accumulated depreciation of $3,393 and $3,306	1,534			1,562
Construction in progress	225			213
Timber and timberlands at cost, less depletion charged to disposals	13,627			14,299
Minerals and mineral rights, less depletion	312			319
Investments in and advances to joint ventures (Note 7)	33			56
Goodwill	40			40
Deferred tax assets	240			293
Other assets	259			224
Restricted financial investments held by variable interest entities	615			615
Total assets	$	18,402		$	19,243
LIABILITIES AND EQUITY
Current liabilities:
Current maturities of long-term debt (Note 10)	$	62		$	281
Accounts payable	259			233
Accrued liabilities (Note 9)	702			692
Total current liabilities	1,023			1,206
Long-term debt  (Note 10)	5,933			6,329
Long-term debt (nonrecourse to the company) held by variable interest entities	511			511
Deferred pension and other postretirement benefits (Note 8)	1,201			1,322
Deposit from contribution of timberlands to related party (Note 7)	416			426
Other liabilities	273			269
Total liabilities	9,357			10,063
Commitments and contingencies (Note 12)
Equity:
Common shares: $1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 753,050,533 and 748,528,131 shares	941			936
Other capital	8,391			8,282
Retained earnings	1,050			1,421
Cumulative other comprehensive loss (Note 13)	(1,337		)	(1,459		)
Total equity	9,045			9,180
Total liabilities and equity	$	18,402		$	19,243

See accompanying Notes to Consolidated Financial Statements.

3

WEYERHAEUSER COMPANY

CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) 

	YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016
Cash flows from operations:
Net earnings	$	311		$	476
Noncash charges (credits) to earnings:
Depreciation, depletion and amortization	394			428
Basis of real estate sold	48			49
Deferred income taxes, net	9			96
Pension and other postretirement benefits (Note 8)	72			5
Share-based compensation expense	29			53
Charges for impairment of assets	153			23
Equity (earnings) loss from joint ventures (Note 7)	(1		)	(18		)
Net gains on disposition of assets and operations	(15		)	(121		)
Foreign exchange transaction (gains) losses (Note 17)	—			(11		)
Change in:
Receivables less allowances	(113		)	(96		)
Receivable/payable for taxes	(116		)	37
Inventories	4			49
Prepaid expenses	(9		)	(3		)
Accounts payable and accrued liabilities	184			61
Pension and postretirement contributions (Note 8)	(59		)	(83		)
Distributions of earnings received from joint ventures (Note 7)	1			5
Other	(45		)	(64		)
Net cash from operations	847			886
Cash flows from investing activities:
Capital expenditures for property and equipment	(213		)	(260		)
Capital expenditures for timberlands reforestation	(46		)	(43		)
Acquisition of timberlands	—			(10		)
Proceeds from sale of assets and operations	423			379
Proceeds from contribution of timberlands to related party	—			440
Distributions of investment received from joint ventures (Note 7)	23			34
Cash and cash equivalents acquired in Plum Creek merger (Note 4)	—			9
Other	5			42
Cash from investing activities	192			591
Cash flows from financing activities:
Cash dividends on common shares	(699		)	(700		)
Cash dividends on preference shares	—			(22		)
Proceeds from issuance of long-term debt (Note 10)	225			1,698
Payments on long-term debt (Note 10)	(831		)	(723		)
Proceeds from borrowings on line of credit (Note 10)	100			—
Payments on line of credit (Note 10)	(100		)	—
Repurchase of common stock	—			(2,003		)
Proceeds from exercise of stock options	89			48
Other	(2		)	(8		)
Cash used in financing activities	(1,218		)	(1,710		)
Net change in cash and cash equivalents	(179		)	(233		)
Cash and cash equivalents from continuing operations at beginning of period	676			1,011
Cash and cash equivalents from discontinued operations at beginning of period	—			1
Cash and cash equivalents at beginning of period	676			1,012
Cash and cash equivalents from continuing operations at end of period	497			769
Cash and cash equivalents from discontinued operations at end of period	—			10
Cash and cash equivalents at end of period	$	497		$	779
Cash paid (received) during the period for:
Interest, net of amount capitalized of $6 and $5	$	315		$	367
Income taxes	$	129		$	(26	)

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 AND OTHER DIVESTITURES	8
NOTE 4:	MERGER WITH PLUM CREEK	10
NOTE 5:	NET EARNINGS PER SHARE	10
NOTE 6:	INVENTORIES	11
NOTE 7:	RELATED PARTIES	11
NOTE 8:	PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS	12
NOTE 9:	ACCRUED LIABILITIES	13
NOTE 10:	LONG-TERM DEBT AND LINES OF CREDIT	13
NOTE 11:	FAIR VALUE OF FINANCIAL INSTRUMENTS	13
NOTE 12:	LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES	14
NOTE 13:	CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)	15
NOTE 14:	SHARE-BASED COMPENSATION	15
NOTE 15:	CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS	16
NOTE 16:	CHARGES FOR PRODUCT REMEDIATION	17
NOTE 17:	OTHER OPERATING COSTS (INCOME), NET	18
NOTE 18:	INCOME TAXES	18

5

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)

FOR THE QUARTERS AND YEARS-TO-DATE ENDED SEPTEMBER 30,2017 AND 2016

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. As a REIT, we generally are not subject to federal corporate level income taxes on REIT taxable income that is distributed to shareholders. We are required to pay corporate income taxes on earnings of our taxable REIT subsidiaries (TRSs), which includes our Wood Products segment and portions of our Timberlands and Real Estate, Energy and Natural Resources (Real Estate & ENR) segments.

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.

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,” “the company” 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 information and footnote disclosures normally included in our annual Consolidated Financial Statements have been condensed or omitted. These quarterly 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, 2016. Results of operations for interim periods should not necessarily be regarded as 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 2017 reporting. This makes year-to-year comparisons easier. Our reclassifications had no effect on consolidated net earnings or equity. Our reclassifications present the adoption of new accounting pronouncements on our Consolidated Statement of Operations and in the related footnotes. Refer to discussion of new accounting pronouncements below.

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. In August 2015, FASB issued ASU 2015-14, which deferred the effective date for an additional year. In March 2016, FASB issued ASU 2016-08, which does not change the core principle of the guidance; however, it does clarify the implementation guidance on principal versus agent considerations. In April 2016, FASB issued ASU 2016-10, which clarifies two aspects of ASU 2014-09: identifying performance obligations and the licensing implementation guidance. In May 2016, FASB issued ASU 2016-12, which amends ASU 2014-09 to provide improvements and practical expedients to the new revenue recognition model. In December 2016, the FASB issued ASU 2016-20, which amends ASU 2014-09 for technical corrections and to correct for unintended application of the guidance. In February 2017, FASB issued ASU 2017-05, which clarifies the scope of ASC 610-20 and impacts accounting for partial sales of nonfinancial assets.

The company expects to adopt and implement the new revenue recognition guidance effective January 1, 2018. The new standard is required to be applied retrospectively to each prior reporting period presented (full retrospective transition method) or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application (cumulative effect method). We expect to adopt using the cumulative effect method. We expect that the adoption of the new revenue recognition guidance will not materially impact our operating results, balance sheet, or cash flows. We expect an impact to our financial reporting from adding expanded disclosures.

In July 2015, FASB issued ASU 2015-11, which simplifies the measurement of inventories valued under most methods, including our inventories valued under FIFO – the first-in, first-out – and moving average cost methods. Inventories valued under LIFO – the last-in, first-out method – are excluded. Under this new guidance, inventories valued under these methods would be valued at the lower of cost or net realizable value, with net realizable value defined as the estimated selling price less reasonable costs to sell the inventory. We adopted ASU 2015-11 on January 1, 2017, and determined this pronouncement does not have a material impact on our consolidated financial statements and related disclosures.

In February 2016, FASB issued ASU 2016-02, which requires lessees to recognize assets and liabilities for the rights and obligations created by those leases and requires both capital and operating leases to be recognized on the balance sheet. The new guidance is effective for fiscal years beginning after December 15, 2018, and early adoption is permitted. We expect to adopt ASU 2016-02 on January 1, 2019, and are evaluating the impact on our consolidated financial statements and related disclosures.

6

In October 2016, FASB issued ASU 2016-16, which requires immediate recognition of the income tax consequences upon intra-entity transfers of assets other than inventory. The new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. We adopted this accounting standard on January 1, 2017. As a result of this adoption, our opening balance sheet was adjusted through "Retained earnings" to include a deferred tax asset of $22 million for prior period intra-entity transfers. Adoption of this standard did not have a material impact on our Consolidated Statement of Cash Flows or Consolidated Statement of Operations.

In March 2017, FASB issued ASU 2017-07, which requires that an employer report the service cost component of pension and other postretirement benefit costs in the Consolidated Statement of Operations in the same line item or items as other compensation costs arising from services rendered by the pertinent employees. This requirement is consistent with how we have historically presented our pension service costs. The other requirement of ASU 2017-07 is to present the remaining components of pension and other postretirement benefit costs (i.e., interest, expected return on plan assets, amortization of actuarial gains or losses, and amortization of prior service credits or costs) in the Consolidated Statement of Operations separately from the service cost component and outside a subtotal of income from operations. The new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. We adopted this accounting standard as of January 1, 2017. As a result, we reclassified amounts related to other components of pension and other post retirement benefit costs from their prior financial statements captions ("Costs of products sold," "General and administrative expenses," and "Other operating costs (income), net") into a new financial statement caption titled "Non-operating pension and other postretirement benefit (costs) credits" in our Consolidated Statement of Operations. The adoption of ASU 2017-07 did not impact "Net earnings," nor did it impact our Consolidated Balance Sheet.

NOTE 2: BUSINESS SEGMENTS

Reportable business segments are determined based on the company’s "management approach," as defined by FASB ASC 280, “Segment Reporting.” The management approach is based on the way the chief operating decision maker organizes the segments within a company for making decisions about resources to be allocated and assessing their performance.

We are principally engaged in growing and harvesting timber; manufacturing, distributing, and selling products made from trees; maximizing the value of every acre we own through the sale of higher and better use (HBU) properties; and monetizing reserves of minerals, oil, gas, coal, and other natural resources on our timberlands. The following is a brief description of each of our reportable business segments and activities:

• Timberlands – which includes logs, timber and leased recreational access;

• Real Estate & ENR – which includes sales of timberlands; rights to explore for and extract hard minerals, oil and gas production and coal; and equity interests in our Real Estate Development Ventures (as defined and described in Note 7: Related Parties); and

• Wood Products – which includes softwood lumber, engineered wood products, structural panels, medium density fiberboard and building materials distribution.

7

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

	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Sales to unaffiliated customers:
Timberlands	$	491		$	484		$	1,446		$	1,342
Real Estate & ENR	82			48			181			125
Wood Products	1,299			1,177			3,746			3,302
	1,872			1,709			5,373			4,769
Intersegment sales:
Timberlands	179			216			544			631
Wood Products	—			17			—			61
	179			233			544			692
Total sales	2,051			1,942			5,917			5,461
Intersegment eliminations	(179		)	(233		)	(544		)	(692		)
Total	$	1,872		$	1,709		$	5,373		$	4,769
Net contribution to earnings:
Timberlands (1)	$	131		$	122		$	267		$	376
Real Estate & ENR(2)	47			15			96			42
Wood Products (3)	40			170			389			413
	218			307			752			831
Unallocated items(4)	(17		)	(9		)	(113		)	(91		)
Net contribution to earnings	201			298			639			740
Interest expense, net of capitalized interest	(98		)	(114		)	(297		)	(323		)
Earnings from continuing operations before income taxes	103			184			342			417
Income taxes	27			(22		)	(31		)	(64		)
Earnings from continuing operations	130			162			311			353
Earnings from discontinued operations, net of income taxes (5)	—			65			—			123
Net earnings	130			227			311			476
Dividends on preference shares	—			—			—			(22		)
Net earnings attributable to Weyerhaeuser common shareholders	$	130		$	227		$	311		$	454

(1) Net contribution to earnings for the Timberlands segment includes a noncash pretax impairment charge of $147 million, recorded during second quarter 2017. This impairment was a result of our agreement to sell our Uruguayan operations, which was announced in June 2017 and completed on September 1, 2017. Refer to Note 3: Discontinued Operations and Other Divestituresfor more information regarding this transaction.

(2) The Real Estate & ENR segment includes the equity earnings from, investments in and advances to our Real Estate Development Ventures (as defined and described in Note 7: Related Parties), which are accounted for under the equity method.

(3) Net contribution to earnings for the Wood Products segment includes pretax charges of $190 million and $240 million incurred in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for estimated costs to remediate an issue with certain I-joists coated with our Flak Jacket® Protection product. Refer to Note 16: Charges for Product Remediation for additional details.

(4) 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. Additionally, amounts shown for 2016 include equity earnings from our former Timberland Venture. As of August 31, 2016, the Timberland Venture became a fully consolidated, wholly-owned subsidiary and therefore eliminated our equity method investment at that time.

(5) Discontinued operations as presented herein consist of the operations of our former Cellulose Fibers segment. Refer to Note 3: Discontinued Operations and Other Divestituresfor more information regarding our discontinued operations.

8

NOTE 3:DISCONTINUED OPERATIONS AND OTHER DIVESTITURES

OPERATIONS DIVESTED

On October 12, 2016, we announced the exploration of strategic alternatives for our Uruguay timberlands and manufacturing operations, which was part of our Timberlands business segment. On June 2, 2017, the Weyerhaeuser Board of Directors approved an equity purchase agreement with a consortium led by BTG Pactual's Timberland Investment Group (TIG), including other long-term investors, pursuant to which the Company agreed to sell, in exchange for $403 million in cash, all of its equity interest in the subsidiaries that collectively owned and operated its Uruguayan timberlands and manufacturing operations.

On September 1, 2017, we completed the sale of our Uruguay timberlands and manufacturing operations for approximately $403 million of cash proceeds. Due to the impairment of our Uruguayan operations recorded during second quarter 2017 (refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments), no material gain or loss was recorded as a result of this sale. As of September 30, 2017, no assets or liabilities related to our Uruguayan operations remain on the Consolidated Balance Sheet.

The sale of our Uruguayan operations was not considered a strategic shift that had or will have a major effect on our operations or financial results, and therefore did not meet the requirements for presentation as discontinued operations.

DISCONTINUED OPERATIONS

During 2016, we entered into three separate transactions to sell our Cellulose Fibers business. As a result of these transactions, the company recognized a pretax gain on disposition of $789 million and total cash proceeds of $2.5 billion in the second half of 2016. These transactions consisted of:

• sale of our Cellulose Fibers liquid packaging board business to Nippon Paper Industries Co., Ltd, which closed on August 31, 2016;

• sale of our Cellulose Fibers printing papers joint venture to One Rock Capital Partners, LLC, which closed on November 1, 2016; and

• sale of our Cellulose Fibers pulp business to International Paper, which closed on December 1, 2016.

The results of operations for our pulp and liquid packaging board businesses, along with our interest in our printing papers joint venture, were reclassified to discontinued operations during our 2016 reporting year. These results have been summarized in "Earnings from discontinued operations, net of income taxes" on our Consolidated Statement of Operations for each period presented. We did not reclassify our Consolidated Statement of Cash Flows to reflect discontinued operations.

The following table presents net earnings from discontinued operations. As all discontinued operations were sold in 2016, no assets or liabilities remain as of September 30, 2017, or December 31, 2016.

	QUARTER ENDED			YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016			SEPTEMBER 2016
Total net sales	$	420		$	1,306
Costs of products sold	350			1,110
Gross margin	70			196
Selling expenses	3			10
General and administrative expenses	7			24
Research and development expenses	—			3
Charges for integration and restructuring, closures and asset impairments(1)	13			44
Other operating income, net	(2		)	(21		)
Operating income	49			136
Equity loss from joint venture	—			(3		)
Interest expense, net of capitalized interest	(2		)	(5		)
Earnings from discontinued operations before income taxes	47			128
Income taxes	(23		)	(46		)
Net earnings from operations	24			82
Net gain on divestiture of Liquid Packaging Board	41			41
Net earnings from discontinued operations	$	65		$	123

(1) Charges relate to our strategic evaluation of the Cellulose Fibers businesses and transaction-related costs.

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Cash flows from discontinued operations for the three and nine months ended September 30, 2016, are as follows:

	QUARTER ENDED		YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016		SEPTEMBER 2016
Net cash provided by operating activities	$	58	$	192
Net cash provided by investing activities	$	259	$	225

NOTE 4:MERGER WITH PLUM CREEK

On February 19, 2016, we merged with Plum Creek Timber Company, Inc. (Plum Creek). Plum Creek was a REIT that primarily owned and managed timberlands in the United States. Plum Creek also produced wood products, developed opportunities for mineral and other natural resource extraction, and sold real estate properties.

The acquisition of total assets of $10.0 billion was a noncash investing and financing activity comprised of $6.4 billion in equity consideration transferred and $3.6 billion of liabilities assumed.

Summarized unaudited pro forma information that presents combined amounts as if this merger occurred at the beginning of 2016 is as follows:

	QUARTER ENDED		YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	SEPTEMBER 2016		SEPTEMBER 2016
Net sales	$	1,709	$	4,925
Net earnings from continuing operations attributable to Weyerhaeuser common shareholders	$	172	$	438
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, basic and diluted	$	0.23	$	0.58

Pro forma "Net earnings from continuing operations attributable to Weyerhaeuser common shareholders" excludes $10 million and $144 million of non-recurring merger-related costs (net of tax) incurred in the quarter and year-to-date ended September 30, 2016, respectively. Pro forma data may not be indicative of the results that would have been obtained had these events occurred at the beginning of the periods presented, nor is it intended to be a projection of future results.

NOTE 5: NET EARNINGS PER SHARE

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

• $0.17 during third quarter 2017 and $0.41 during year-to-date 2017; and

• $0.30 during third quarter 2016 and $0.64 during year-to-date 2016.

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:

	QUARTER ENDED		YEAR-TO-DATE ENDED
SHARES IN THOUSANDS	SEPTEMBER 2017	SEPTEMBER 2016	SEPTEMBER 2017	SEPTEMBER 2016
Weighted average number of outstanding common shares – basic	753,535	749,587	752,301	708,395
Dilutive potential common shares:
Stock options	2,437	3,185	2,754	2,660
Restricted stock units	551	814	529	723
Performance share units	380	458	474	427
Total effect of outstanding dilutive potential common shares	3,368	4,457	3,757	3,810
Weighted average number of outstanding common shares – dilutive	756,903	754,044	756,058	712,205

We use the treasury stock method to calculate the dilutive 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.

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

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.

	QUARTER ENDED		YEAR-TO-DATE ENDED
SHARES IN THOUSANDS	SEPTEMBER 2017	SEPTEMBER 2016	SEPTEMBER 2017	SEPTEMBER 2016
Stock options	1,381	1,835	1,381	1,835
Performance share units	556	361	556	361

Mandatory Convertible Preference Shares

We issued 13.8 million6.375 percent Mandatory Convertible Preference Shares, Series A on June 24, 2013, the majority of which remained outstanding through June 30, 2016. On July 1, 2016, all outstanding 6.375 percent Mandatory Convertible Preference Shares, Series A (Preference Shares) converted into Weyerhaeuser common shares at a rate of 1.6929 Weyerhaeuser common shares per Preference Share. There were no preference shares outstanding as of December 31, 2016, or September 30, 2017.

NOTE 6: INVENTORIES

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

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017		DECEMBER 31, 2016
LIFO Inventories:
Logs	$	5	$	18
Lumber, plywood and panels	44		51
Medium density fiberboard	11		10
Other products	14		10
FIFO or moving average cost inventories:
Logs	19		21
Lumber, plywood, panels and engineered wood products	81		71
Other products	81		92
Materials and supplies	85		85
Total	$	340	$	358

LIFO – the last-in, first-out method – applies to major inventory products held at our U.S. domestic locations. The FIFO – the first-in, first-out method – or moving average cost methods apply 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 LIFO inventories, our stated inventories would have been higher by $70 million as of September 30, 2017, and $71 millionas of December 31, 2016.

NOTE 7:RELATED PARTIES

This note provides details about our transactions with related parties. Our related parties consist of:

• our Real Estate Development Ventures (as defined below), which are accounted for using the equity method and

• our Twin Creeks Venture.

Real Estate Development Ventures

WestRock-Charleston Land Partners, LLC (WR-CLP) is a limited liability company which holds residential and commercial real estate development properties, currently under development (Class A Properties) and higher-value timber and development lands (Class B Properties) (Class A Properties and Class B Properties referred to collectively as the Real Estate Development Ventures). Our share of the equity earnings of WR-CLP is included in the net contribution to earnings of our Real Estate & ENR segment.

The carrying amount of our investment in WR-CLP is $33 million at September 30, 2017, and $56 million at December 31, 2016. The change in our investment in WR-CLP during 2017 is due to a $23 million cash return of investment received during 2017. Additionally, we had $1 million of equity earnings from the joint ventures during third quarter and year-to-date 2017. These equity earnings were distributed during third quarter 2017. We record our share of net earnings within "Equity earnings from joint ventures" in our Consolidated Statement of Operationsin the period which earnings are recorded by the affiliates.

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Twin Creeks Venture

On April 1, 2016, we contributed approximately 260,000 acres of our southern timberlands with an agreed-upon value of approximately $560 million to Twin Creeks Timber, LLC (Twin Creeks Venture), in exchange for cash of approximately $440 million and a 21 percent ownership interest.

In conjunction with contributing to the venture, we entered into separate agreements to manage the timberlands owned by the Twin Creeks Venture, including harvesting activities, marketing and log sales activities, and replanting and silviculture activities. These management agreements guaranteed the Twin Creeks Venture an annual return equal to 3 percent of the contributed value of the managed timberlands in the form of minimum quarterly payments from Weyerhaeuser. We were also required to annually distribute 75 percent of any profits earned by us in excess of the minimum quarterly payments. The management agreement was cancellable at any time by Twin Creeks Timber, LLC, or otherwise would expire on April 1, 2019.

Subsequent to the quarter ended September 30, 2017, but prior to the issuance of these financial statements, we announced the redemption of our 21 percent ownership interest in the Twin Creeks Venture for $108 million in cash. We do not expect to recognize a material gain or loss on the redemption of our ownership interest. Effective December 31, 2017, we will also terminate the agreements under which we have managed the Twin Creeks timberlands. Following termination of these agreements, Weyerhaeuser will have no further responsibilities or obligations related to Twin Creeks. In conjunction with the redemption and termination discussed above, we have also entered into an agreement to sell 100,000 acres of our timberlands to Twin Creeks for $203 million. The sale, which will include 80,000 acres of timberlands in Mississippi and 20,000 acres in Georgia, is expected to close by the end of fourth quarter 2017.

Changes in our "Deposit from contribution of timberlands to related party" balance during 2017 were as follows:

DOLLAR AMOUNTS IN MILLIONS
Balance as of December 31, 2016	$	426
Lease payments to Twin Creeks Venture	(13		)
Distributions from Twin Creeks Venture	3
Balance at September 30, 2017	$	416

NOTE 8: PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

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

	PENSION
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Service cost(1)	$	9		$	13		$	26		$	37
Interest cost	66			70			198			207
Expected return on plan assets	(101		)	(125		)	(306		)	(371		)
Amortization of actuarial loss	48			39			145			117
Amortization of prior service cost	1			1			3			3
Accelerated pension costs included in Plum Creek merger-related costs (Note 15)	—			—			—			5
Total net periodic benefit cost (credit) - pension	$	23		$	(2	)	$	66		$	(2	)

(1) Service cost includes $3 million and $10 million for the quarter and year-to-date ended September 30, 2016, respectively, for employees that were part of our Cellulose Fibers divestitures. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Interest cost	$	2		$	2		$	6		$	7
Amortization of actuarial loss	2			2			6			6
Amortization of prior service credit	(2		)	(2		)	(6		)	(6		)
Total net periodic benefit cost - other postretirement benefits	$	2		$	2		$	6		$	7

On January 1, 2017, we adopted ASU 2017-07, which affects where components of pension and other postretirement costs are presented on the Consolidated Statement of Operations. Refer to Note 1: Basis of Presentation for further information.

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FAIR VALUE OF PENSION PLAN ASSETS AND OBLIGATION

We estimate the fair value of pension plan assets based upon the information available during the year-end reporting process. In some cases, primarily private equity funds, the information available consists of net asset values as of an interim date, cash flows between the interim date and the end of the year and market events. We update the year-end estimated fair value of pension plan assets to incorporate year-end net asset values reflected in financial statements received after we have filed our Annual Report on Form 10-K. During second quarter 2017, we recorded an increase in the fair value of the pension assets of $17 million, or less than 1 percent. We also updated our census data that is used to estimate our projected benefit obligation for our pension plans. As a result of that update, during second quarter 2017, we recorded a decrease to the projected benefit obligation of $10 million, or less than 1 percent. The net effect was a $27 million improvement in the funded status compared to December 31, 2016.

EXPECTED CONTRIBUTIONS AND BENEFIT PAYMENTS

In 2017 we expect to:

• be required to contribute approximately $23 million for our Canadian registered plan;

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

• make benefit payments of $26 million for our U.S. nonqualified pension plans; and

• make benefit payments of $21 million for our U.S. and Canadian other postretirement plans.

We do not anticipate making a contribution to our U.S. qualified pension plans in 2017.

NOTE 9: ACCRUED LIABILITIES

Accrued liabilities were comprised of the following:

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017		DECEMBER 31, 2016
Wages, salaries and severance pay	$	132	$	178
Pension and other postretirement benefits	48		49
Vacation pay	35		33
Taxes – Social Security and real and personal property	38		20
Interest	85		120
Customer rebates and volume discounts	46		39
Deferred income	60		40
Accrued income taxes	4		139
Product remediation accrual(Note 16)	179		—
Other	75		74
Total	$	702	$	692

NOTE 10:LONG-TERM DEBT AND LINES OF CREDIT

During March 2017, we entered into a new $1.5 billion five-year senior unsecured revolving credit facility that expires in March 2022. This replaced a $1 billion senior unsecured revolving credit facility that was set to expire September 2018. The entire amount is available to Weyerhaeuser Company. Borrowings are at LIBOR plus a spread or at other interest rates mutually agreed upon between the borrower and the lending banks. As of September 30, 2017, there were no borrowings outstanding.

During July 2017, we prepaid a $550 million variable-rate term loan originally set to mature in 2020 (2020 term loan). The 2020 term loan was prepaid using available cash of $325 million as well as borrowing proceeds from a new $225 million variable-rate term loan set to mature in 2026 (2026 term loan).

During August 2017, we paid our $281 million 6.95% debentures, originally set to mature in August 2017.

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NOTE 11: FAIR VALUE OF FINANCIAL INSTRUMENTS

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

	SEPTEMBER 30, 2017				DECEMBER 31, 2016
DOLLAR AMOUNTS IN MILLIONS	CARRYING  VALUE		FAIR VALUE (LEVEL 2)		CARRYING  VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities):
Fixed rate	$	5,771	$	6,872	$	6,061	$	6,925
Variable rate	224		225		549		550
Total Debt	$	5,995	$	7,097	$	6,610	$	7,475

To estimate the fair value of fixed rate 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.

We believe that our variable rate long-term debt instruments have net carrying values that approximate their fair values with only insignificant differences.

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, mutual fund investments held in grantor trusts, 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 and the allowance for doubtful accounts.

NOTE 12: LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

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. See Note 18: Income Taxes for a discussion of a tax proceeding involving Plum Creek's 2008 U.S. federal income tax return.

ENVIRONMENTAL MATTERS

Site Remediation

Under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) – 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.

We have received notification from the Environmental Protection Agency (the EPA) and have acknowledged that we are a potentially responsible party in a portion of the Kalamazoo River Superfund site in southwest Michigan. Our involvement in the remediation site is based on our former ownership of the Plainwell, Michigan mill located within the remediation site. Several other companies also operated upstream pulp mills within the remediation site. We are currently cooperating with the other parties to jointly implement an administrative order issued by the EPA on April 14, 2016, with respect to a portion of the site comprising a stretch of the river approximately 1.7 miles long referred to as the Otsego Township Dam Area. We do not expect to incur material losses related to the implementation of this administrative order; however, we may incur additional costs, as yet not specified, in connection with remediation tasks resulting from other areas of the site. The company, along with others, was named as a defendant by Georgia-Pacific Consumer Products LP, Fort James Corporation and Georgia-Pacific LLC in an action seeking contribution under CERCLA for remediation costs relating to the site. The trial has been concluded but a decision on cost contribution and allocation has not yet been rendered by the Court.

As of September 30, 2017, our total accrual for future estimated remediation costs on the active Superfund sites and other sites for which we are responsible was approximately $46 million. These reserves are recorded in "Accrued liabilities" (current) and "Other liabilities" (noncurrent) on our Consolidated Balance Sheet.

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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 September 30, 2017, our accrued balance for these obligations was $30 million. These obligations are recorded in "Accrued liabilities" (current) and "Other liabilities" (noncurrent) on our Consolidated Balance Sheet. The accruals have not changed materially since the end of 2016.

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.

PRODUCT REMEDIATION CONTINGENCY

In July 2017, the company announced it was implementing a solution to address concerns regarding our TJI® Joists with Flak Jacket® Protection product. The company has determined that an odor in certain newly constructed homes is related to a recent formula change to the Flak Jacket coating that included a formaldehyde-based resin. This issue is isolated to Flak Jacket product manufactured after December 1, 2016, and does not affect any of the company’s other products. We recorded a pretax charge of $190 million and $240 million in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for remediation costs. Refer to Note 16: Charges for Product Remediation for further information.

NOTE 13: 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, 2016	$	232	$	(1,651	)	$	(9	)	$	(67	)	$	29		$	7	$	(1,459	)
Other comprehensive income (loss) before reclassifications	35		1			(3		)	—			—			2		35
Income taxes	—		(10		)	1			—			—			—		(9		)
Net other comprehensive income (loss) before reclassifications	35		(9		)	(2		)	—			—			2		26
Amounts reclassified from cumulative other comprehensive income (loss)(1)	—		145			3			6			(6		)	—		148
Income taxes	—		(49		)	(1		)	(3		)	1			—		(52		)
Net amounts reclassified from cumulative other comprehensive income (loss)	—		96			2			3			(5		)	—		96
Total other comprehensive income (loss)	35		87			—			3			(5		)	2		122
Ending balance as of September 30, 2017	$	267	$	(1,564	)	$	(9	)	$	(64	)	$	24		$	9	$	(1,337	)

(1) Actuarial losses and prior service credits (cost) are components of net periodic benefit costs (credits). See Note 8: Pension and Other Postretirement Benefit Plans.

NOTE 14: SHARE-BASED COMPENSATION

Share-based compensation activity during year-to-date 2017 included the following:

SHARES IN THOUSANDS	Granted	Vested
Restricted Stock Units (RSUs)	763	710
Performance Share Units (PSUs)	348	160

A total of 4.5 million shares of common stock were issued as a result of RSU vesting, PSU vesting and stock option exercises.

RESTRICTED STOCK UNITS

The weighted average fair value of the RSUs granted in 2017 was $32.79. The vesting provisions for RSUs granted in 2017 were as follows:

• vest ratably over four years;

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

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• 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 entirely 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 PSUs granted in 2017 was $37.93.

The final number of shares granted in 2017 will range from 0 percent to 150 percent of each grant's target, depending upon actual company performance.

The ultimate number of PSUs 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 PSUs granted in 2017 were as follows:

• vest 100 percent on the third anniversary of the grant date if 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 entirely 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 2017

	Performance Share Units
Performance period	1/1/2017 - 12/31/2019
Valuation date average stock price (1)	$	32.79
Expected dividends	3.74					%
Risk-free rate	0.68		%	–	1.55	%
Expected volatility	22.71		%	–	24.07	%

(1) Calculated as an average of the high and low prices on grant date.

STOCK OPTIONS AND STOCK APPRECIATION RIGHTS

We granted no stock options or stock appreciation rights during 2017, nor do we expect to make any such grants during the remainder of 2017.

VALUE MANAGEMENT AWARDS

Value Management Awards (VMAs) are relative performance equity incentive awards granted to certain former employees of Plum Creek and assumed by the company in connection with the Plum Creek merger. In accordance with the terms of the merger, all VMAs outstanding on December 31, 2017, will vest at “target” level performance of $100 per unit and will be paid in the first quarter of 2018. The VMAs are classified and accounted for as liabilities, as they will be settled in cash upon vesting. The expense recognized over the remaining performance period will equal the cash value of an award as of the last day of the performance period multiplied by the number of awards that are earned. Expense for VMAs will continue to be recognized over the remaining service period unless a qualifying termination occurs. A qualifying termination of any holder of a VMA award before December 31, 2017, will accelerate vesting and expense recognition in the period that the qualifying termination occurs.

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NOTE 15:CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

	QUARTER ENDED				YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016		SEPTEMBER 2017		SEPTEMBER 2016
Integration and restructuring charges related to our merger with Plum Creek:
Termination benefits	$	—	$	4	$	6	$	52
Acceleration of share-based compensation and pension related benefits related to qualifying terminations	—		—		—		26
Professional services	5		6		10		45
Other integration and restructuring costs	1		4		4		9
Total integration and restructuring charges related to our merger with Plum Creek	6		14		20		132
Charges related to closures and other restructuring activities:
Termination benefits	—		1		2		4
Other closures and restructuring costs	2		1		3		3
Total charges related to closures and other restructuring activities	2		2		5		7
Impairments of long-lived assets	6		—		153		2
Total charges for integration and restructuring, closures and impairments	$	14	$	16	$	178	$	141

INTEGRATION, RESTRUCTURING AND CLOSURES

During 2017, we incurred and accrued for termination benefits (primarily severance) and non-recurring professional services costs directly attributable to our merger with Plum Creek.

During 2016, we incurred and accrued for termination benefits (primarily severance), accelerated share-based payment costs, and accelerated pension benefits based upon qualifying terminations of certain employees as a result of restructuring decisions made subsequent to the merger. We also incurred non-recurring professional services costs for investment banking, legal and consulting, and certain other fees directly attributable to our merger with Plum Creek.

Changes in accrued severance related to restructuring during the year-to-date period ended September 30, 2017, were as follows:

DOLLAR AMOUNTS IN MILLIONS
Accrued severance as of December 31, 2016	$	26
Charges	8
Payments	(20		)
Accrued severance as of September 30, 2017	$	14

Accrued severance is recorded within the "Wages, salaries and severance pay" component of "Accrued liabilities" on our Consolidated Balance Sheet as detailed in Note 9: Accrued Liabilities. The majority of the accrued severance balance as of September 30, 2017, is expected to be paid within one year.

IMPAIRMENTS OF LONG-LIVED ASSETS

In second quarter 2017, we recognized an impairment charge to the timberlands and manufacturing assets of our Uruguayan operations. On June 2, 2017, our Board of Directors approved an agreement to sell all of the Company's equity in the Uruguayan operations to a consortium led by BTG Pactual's Timberland Investment Group (TIG.) As a result of this agreement, the related assets met the criteria to be classified as held for sale at June 30, 2017. This designation required us to record the related assets at fair value, less an amount of estimated selling costs, and thus recognize a $147 million noncash pretax impairment charge. This amount was recorded in the Timberlands segment. The fair value of the related assets was primarily based on the agreed upon cash purchase price of $403 million. On September 1, 2017, we announced the completion of the sale. Refer to Note 3: Discontinued Operations and Other Divestituresfor further details of the Uruguayan operations sale.

Additionally, in September 2017, we recognized an impairment charge of $6 million related to a non-strategic asset in our Wood Products segment. The fair value of the asset was determined using a contract value associated with a pending asset sale.

NOTE 16:CHARGES FOR PRODUCT REMEDIATION

In July 2017, the company announced it was implementing a solution to address concerns regarding our TJI® Joists with Flak Jacket® Protection product. The company has determined that an odor in certain newly constructed homes is related to a recent formula change to the Flak Jacket coating that included a formaldehyde-based resin. This issue is isolated to Flak Jacket product manufactured after December 1, 2016, and does not affect any of the company’s other products. The company also announced it will cover the cost to either remediate or replace affected joists. The company estimates that approximately 2,400homes are affected.

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The company recorded a liability of $50 million in second quarter 2017 based on the preliminary information that was available at that time. As remediation work has progressed, the company has obtained additional information and experience about the scope of the required remediation efforts and associated costs. Accordingly, we have adjusted our liability to account for the higher than originally expected cost per home for remediation, a modest increase in the estimated number of homes affected, as well as additional homebuilder and homeowner reimbursements. We recorded pretax charges of $190 million and $240 million in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for expected costs associated with the remediation. The charges are attributable to our Wood Products segment and were recorded in "Charges for product remediation," on the Consolidated Statement of Operations. As of September 30, 2017, $61 million has been paid out in relation to our remediation efforts. The remaining accrual of $179 million is recorded in "Accrued liabilities" on the Consolidated Balance Sheet. The company ultimately expects a significant portion of the total expense will be covered by insurance, however, as of the date of these financial statements no amounts related to potential recoveries have been recorded.

NOTE 17: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						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Gain on disposition of non-strategic assets (1)	$	(5	)	$	(8	)	$	(14	)	$	(54	)
Foreign exchange losses (gains), net (2)	(3		)	1			—			(11		)
Litigation expense, net	8			2			14			23
Other, net	(12		)	2			2			(14		)
Total other operating costs (income), net	$	(12	)	$	(3	)	$	2		$	(56	)

(1) Gain on disposition of non-strategic assets included a $36 million pretax gain recognized in the first quarter of 2016 on the sale of our Federal Way, Washington headquarters campus. The remaining gains on disposition of non-strategic assets includes sales such as redundant offices and nurseries.

(2) Foreign exchange losses (gains) result from changes in exchange rates, primarily related to our Canadian operations.

NOTE 18: INCOME TAXES

As a REIT, we generally are not subject to federal corporate level income taxes on REIT taxable income that is distributed to shareholders. We are required to pay corporate income taxes on earnings of our wholly-owned TRSs, which includes our Wood Products segment and portions of our Timberlands and Real Estate & ENR segments' earnings.

The quarterly provision for income taxes is based on the current estimate of the annual effective tax rate. Our 2017 estimated annual effective tax rate for our TRSs is approximately 34 percent, which is lower than the U.S. domestic statutory federal tax rate primarily due to lower foreign tax rates applicable to foreign earnings.

ONGOING IRS MATTER

In connection with the merger with Plum Creek, we acquired equity interests in Southern Diversified Timber, LLC, a timberland joint venture (Timberland Venture) with an affiliate of Campbell Global LLC (TCG Member). On August 31, 2016, the Timberland Venture redeemed TCG Member's interest and became a fully consolidated, wholly-owned subsidiary of Weyerhaeuser. 

We received a Notice of Final Partnership Administrative Adjustment (FPAA), dated July 20, 2016, from the Internal Revenue Service (IRS) in regard to Plum Creek’s 2008 U.S. federal income tax treatment of the transaction forming the Timberland Venture. The IRS is asserting that the transfer of the timberlands to the Timberland Venture was a taxable transaction to Plum Creek at the time of the transfer rather than a nontaxable capital contribution. We have filed a petition in the U.S. Tax Court and will vigorously contest this adjustment.

In the event that we are unsuccessful in this tax litigation, we could be required to recognize and distribute gain to shareholders of approximately $600 million and pay built-in gains tax of approximately $100 million. We would also be required to pay interest on both of those amounts, which would be substantial. As much as 80 percent of any such gain distribution could be made with our common stock, and shareholders would be subject to tax on the distribution at the applicable capital gains tax rate. Alternatively, we could elect to retain the gain and pay corporate-level tax to minimize interest costs to the company.

Although the outcome of this process cannot be predicted with certainty, we are confident in our position based on U.S. tax law and believe we will be successful in defending it. Accordingly, no reserve has been recorded related to this matter.

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

NOTE ABOUT 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, Section 27A of the Securities Act of 1933, and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements may appear throughout this report. These forward-looking statements generally are identified by words such as “believe,” “project,” “expect,” “anticipate,” “estimate,” “intend,” “strategy,” “future,” “opportunity,” “plan,” “may,” “should,” “will,” “would,” and expressions such as “will be,” “will continue,” “will likely result,” and similar words and expressions. Forward-looking statements are based on our current expectations and assumptions and are not guarantees of future performance. The realization of our expectations and the accuracy of our assumptions are subject to a number of risks and uncertainties that could cause actual results to differ materially from those described in the forward-looking statements. These risks and uncertainties include, but are not limited to:

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

• market demand for the company's products, including market demand for our timberland properties with higher and better uses, which is related to, among other factors, the strength of the various U.S. business segments and U.S. and international economic conditions;

• changes in currency exchange rates and restrictions on international trade;

• performance of our manufacturing operations, including maintenance and capital requirements;

• potential disruptions in our manufacturing operations;

• the level of competition from domestic and foreign producers;

• our ability to successfully realize the expected benefits from the merger with Plum Creek;

• the successful execution of our internal plans and strategic initiatives, including restructuring and cost reduction initiatives;

• the successful and timely execution and integration of our strategic acquisitions, including our ability to realize expected benefits and synergies, and the successful and timely execution of our strategic divestitures, each of which is subject to a number of risks and conditions beyond our control including, but not limited to, timing and required regulatory approvals;

• 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;

• 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;

• the accuracy of our estimates of costs and expenses related to contingent liabilities;

• changes in accounting principles; and

• other risks and uncertainties identified in our 2016 Annual Report on Form 10-K, which are incorporated herein by reference, as well as those set forth from time to time in our other public statements and other reports and filings with the SEC.

Forward-looking statements speak only as of the date they are made, and we undertake no obligation to publicly update or revise any forward-looking statements, whether because of new information, future events, or otherwise.

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RESULTS OF OPERATIONS

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

• Sales realizations for Timberlands and Wood Products refer to net selling prices – this includes selling price plus freight, minus normal sales deductions. Real Estate transactions are presented at the contract sales price before commissions and closing costs, net of any credits.

• Net contribution to earnings does not include interest expense and income taxes.

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 and year-to-date period ended September 30, 2017, compared to the quarter and year-to-date period ended September 30, 2016.

ECONOMIC AND MARKET CONDITIONS AFFECTING OUR OPERATIONS

The demand for logs within our Timberlands segment is directly affected by production levels of domestic wood-based building products. The strength of the U.S. housing market strongly affects demand in our Wood Products segment, as does repair and remodeling activity. Our Timberlands segment, specifically the Western region, is also affected by export demand. Japanese housing starts are a key driver of export log demand in Japan.

In the first nine months of 2017, housing starts averaged 1.19 million total units on a seasonally adjusted annual basis according to the U.S. Census Bureau. Single family units accounted for 70 percent of total housing starts 2017 year to date. While total housing start growth has slowed in 2017, there has been a shift in construction from multifamily units which are down 8 percent year over year, to single family units, which have increased 9 percent over the same period. This shift to the more wood intensive single family construction has been positive for wood product demand. We continue to expect improving U.S. housing starts and anticipate a level of approximately 1.21 million units in 2017, a 3 percent increase compared to 2016. We attribute this continued improvement primarily to employment growth, improving consumer confidence and historically low mortgage rates.

According to the Joint Center for Housing of Harvard University, the Leading Indicator of Remodeling Activity (LIRA), has increased by 6.9 percent in first half of 2017 and is expected to average just under 6.7 percent year over year for 2017.

U.S. wood product markets advanced in the first half of 2017, consistent with growth in homebuilding and remodeling segments, as described above. According to Forest Economic Advisors, LLC (FEA), North American lumber consumption is expected to grow at a 4 to 5 percent rate in 2017. Consistent with this expectation, demand for logs increased with wood products production within our Western region. This coupled with higher market prices in third quarter 2017 drove higher realizations within this region. In the South, log supplies kept pace with increased demand, leaving prices flat to slightly down year-to-date.

Log inventories in Chinese ports have been stable through September 2017 as reported by International Wood Markets China Bulletin. Log and lumber demand in China remain strong due to higher construction activity. In Japan, housing starts for January through August 2017 are up 1 percent from the same period last year.

We expect demand from China and Japan in 2017 to be similar to modestly improved from demand experienced in 2016.

Our Real Estate, Energy and Natural Resources segment is affected by the health of the U.S. economy and especially the U.S. housing sector of the economy. According to the Realtors Land Institute of the National Association of Realtors, prices and volumes of rural timber properties sold in 2016 grew 5 percent over 2015 sales. Additionally, sales of these types of properties are expected to grow 3 percent in 2017 when compared to 2016.

SOFTWOOD LUMBER AGREEMENT

We operate a total of 19 softwood lumber mills with a total capacity of 4.9 billion board feet. Three of these mills are located in Canada, produce approximately 900 million board feet annually, and sell products in Canada, Asia, and the U.S.

On April 24, 2017, the U.S. Department of Commerce announced a preliminary determination that it would implement countervailing duties on Canadian softwood lumber shipments to the U.S. The rate applicable to Weyerhaeuser is 19.88 percent and became effective as of April 28, 2017. The U.S. Department of Commerce also announced that retroactive deposits at the 19.88 percent rate will be collected from certain Canadian lumber producers, including Weyerhaeuser, for softwood lumber shipments from Canada to the U.S. during the 90-day period prior to April 28, 2017.

The preliminary countervailing duties were suspended on August 26, 2017, at which time we effectively stopped accruing for the expense.  The suspension of the countervailing duties will last until the US International Trade Commission reaches its final determination of injury, which is expected to be in December of this year.

On June 26, 2017, the U.S. Department of Commerce announced a preliminary determination that it would implement anti-dumping duties on Canadian softwood lumber shipments to the U.S. The rate applicable to Weyerhaeuser is 6.87 percent and became effective as of June 30, 2017. The U.S. Department of Commerce also announced that retroactive deposits at the 6.87 percent rate will be collected from certain Canadian lumber producers, including Weyerhaeuser, for softwood lumber shipments from Canada to the U.S. during the 90-day period prior to June 30, 2017.

Year-to-date 2017, we recorded an expense of approximately $9 million in our Wood Products segment related to the retroactive countervailing and antidumping duties. We have also expensed prospective duties as incurred, which as of September 30, 2017 totaled $7 million. As of

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September 30, 2017, we have expensed a total of $5 million quarter-to-date 2017 and $16 million year-to-date 2017 for retroactive and prospective duties combined.

CONSOLIDATED RESULTS

How We Did Third Quarter 2017 and Year-to-Date 2017

	QUARTER ENDED				AMOUNT OF CHANGE			YEAR-TO-DATE ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	SEPTEMBER 2017		SEPTEMBER 2016		2017 VS. 2016			SEPTEMBER 2017		SEPTEMBER 2016		2017 VS.  2016
Net sales	$	1,872	$	1,709	$	163		$	5,373	$	4,769	$	604
Costs of products sold	1,374		1,328		46			3,982		3,702		280
Operating income	205		261		(56		)	655		648		7
Earnings from discontinued operations, net of tax	—		65		(65		)	—		123		(123		)
Net earnings attributable to Weyerhaeuser common shareholders	130		227		(97		)	311		454		(143		)
Earnings per share attributable to Weyerhaeuser shareholders, basic	$	0.17	$	0.30	$	(0.13	)	$	0.41	$	0.64	$	(0.23	)
Earnings per share attributable to Weyerhaeuser shareholders, diluted	$	0.17	$	0.30	$	(0.13	)	$	0.41	$	0.64	$	(0.23	)

Comparing Third Quarter 2017 with Third Quarter 2016

Net sales

Net sales increased $163 million – 10 percent – primarily attributable to the following factors:

• Wood Products sales to unaffiliated customers increased $122 million – 10 percent – primarily due to increased average sales realizations across all product lines, as well as, increased sales volumes within our engineered solid section and engineered I-joists product lines. Additionally, upon completion of the sales of our former Cellulose Fibers businesses, chips previously sold to Cellulose Fibers are now sales to unaffiliated customers.

• Real Estate & ENR sales to unaffiliated buyers increased $34 million – 71 percent – primarily attributable to a $33 million increase in net real estate sales. This is attributable to increases in volume of acres sold, partially offset by a decrease in average price realized per acre.

• Timberlands sales to unaffiliated customers increased $7 million – 1 percent – primarily attributable to an increase in Western Timberlands average sales realizations for delivered logs. These increases were partially offset by decreased Southern average sales realizations and decreased Northern delivered log sales volumes.

Costs of products sold

Costs of products sold increased $46 million – 3 percent – primarily attributable to the following:

• Intercompany eliminations of costs of products sold decreased $54 million, therefore increasing consolidated cost of products sold. This reduction in intercompany costs of products sold is primarily due to the completion of the sales of our former Cellulose Fibers businesses. Chips and logs previously sold to Cellulose Fibers are now sales to unaffiliated customers and therefore have related cost of products sold.

• Wood Products segment costs of products sold increased $25 million – 3 percent – primarily due to an increase in log and manufacturing costs, offset by a decrease in sales volume.

• Real Estate & ENR segment costs of products sold increased $5 million – 19 percent – attributable to higher sales volumes and higher basis of real estate sold.

These increases to costs of products sold were offset by decreased Timberlands segment costs of products sold, which decreased $42 million –8 percent – primarily due to decreases in sales volumes and reduced silvicultural activities due to weather.

Operating income

Operating income decreased $56 million – 21 percent – primarily attributable to "Charges for product remediation" – $190 million. Refer to Note 16: Charges for Product Remediationfor further information. Excluding this charge, operating income increased $134 million, which is primarily due to increased gross margin, as explained above.

Net earnings attributable to Weyerhaeuser common shareholders

Our Net earnings attributable to Weyerhaeuser common shareholders decreased $97 million – 43 percent. Excluding 2016 "Earnings from discontinued operations, net of tax," net earnings attributable to Weyerhaeuser common shareholders decreased $32 million. This is attributable to decreased operating income, as described above, and:

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• a $29 million increase in expense related to "Non-operating pension and other postretirement benefit (costs) credits" due to a decrease in the expected return on our plan assets and an increase in the amortization of actuarial losses.

• an $8 million decrease in "Equity earnings from joint ventures." This is attributable to equity earnings from our Timberland Venture, which effective August 31, 2016, is consolidated as a wholly-owned subsidiary.

These are partially offset by:

• a decrease in "Interest expense, net of capitalized interest" – $16 million. Refer to Interest Expense for further detail.

• a change from an income tax expense in third quarter 2016 to an income tax benefit in third quarter 2017 – $49 million. Refer to Income Taxes for further information.

"Earnings from discontinued operations, net of tax," decreased $65 million as all discontinued operations were sold in 2016.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net sales

Net sales increased $604 million – 13 percent – primarily attributable to the following factors:

• Wood Products sales to unaffiliated customers increased $443 million – 13 percent – primarily due to increased average sales realizations within our oriented strand board and structural lumber product lines. Additionally, upon completion of the sales of our former Cellulose Fibers businesses, chips previously sold to Cellulose Fibers are now sales to unaffiliated customers.

• Timberlands sales to unaffiliated customers increased $104 million – 8 percent – primarily due to an increase in Southern and Other (primarily Twin Creeks) delivered log sales volumes. In addition to the increased sales volumes, Timberlands net sales also increased due to increased recreational lease revenue.

• Real Estate & ENR sales to unaffiliated buyers increased $56 million – 45 percent – primarily due to increased net real estate sales attributable to increases in volume of acres sold. Additionally, our net energy and natural resources sales increased, attributable to the operations acquired in our merger with Plum Creek.

Costs of products sold

Costs of products sold increased $280 million – 8 percent – primarily attributable to the following:

• Intercompany eliminations of costs of products sold decreased $147 million, therefore increasing consolidated cost of products. This reduction in intercompany costs of products sold is primarily due to the completion of the sales of our former Cellulose Fibers businesses. Chips and logs previously sold to Cellulose Fibers are now sales to unaffiliated customers and therefore have related cost of products sold.

• Wood Products segment costs of products sold increased $134 million – 5 percent – primarily due to an increase in log and manufacturing costs, offset by a decrease in sales volume.

These increases to costs of products sold were offset by decreased Timberlands segment costs of products sold, which decreased $15 million – 1 percent – primarily due to continued focus on merger synergies and operational excellence as well as lower sales volumes in the West.

Operating income

Operating income increased $7 million – 1 percent – primarily attributable to increased gross margin, as described above, and decreased "General and administrative expenses" – $15 million. These were offset by:

• increased "Charges for product remediation" – $240 million. Refer to Note 16: Charges for Product Remediation for further detail.

• a $58 million increase in expense related to "Other operating costs (income), net." This is primarily due to:

◦ a decrease in gains on disposition of non-strategic assets, primarily attributable to a $36 million pretax gain recognized in the first quarter of 2016 on the sale of our Federal Way, Washington headquarters campus.

◦ a decrease in foreign exchange gains – $11 million – primarily related to debt held by our Canadian entity.

◦ Refer to Note 17: Other Operating Costs (Income), net for further information.

• increased "Charges for integration and restructuring, closures and asset impairments" – $37 million. This is attributable to a $147 million noncash impairment charge recognized during second quarter 2017 in relation to the company agreeing to sell its Uruguayan operations. This was partially offset by a $112 million decrease in charges related to our merger with Plum Creek. Refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments for further information.

Net earnings attributable to Weyerhaeuser common shareholders

Our Net earnings attributable to Weyerhaeuser common shareholders decreased $143 million – 31 percent. Excluding 2016 "Earnings from discontinued operations, net of tax," net earnings attributable to Weyerhaeuser common shareholders decreased $20 million, primarily attributable to:

• an $83 million increase in expense related to "Non-operating pension and other postretirement benefit (costs) credits" due to a decrease in the expected return on plan assets and an increase in the amortization of actuarial losses.

• a $20 million decrease in "Equity earnings from joint ventures." This is attributable to equity earnings from our Timberland Venture, which effective August 31, 2016, is consolidated as a wholly-owned subsidiary.

These decreases were partially offset by:

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• a $33 million decrease in income tax expense. Refer to Income Taxes for further information.

• a decrease in "Interest expense, net of capitalized interest" – $26 million. Refer to Interest Expense for further detail.

• a decrease in "Dividends on preference shares" – $22 million. On July 1, 2016, all outstanding Preference Shares converted to Weyerhaeuser common shares. Refer to Note 5: Net Earnings Per Share and Share Repurchases for further information.

"Earnings from discontinued operations, net of tax," decreased $123 million as all discontinued operations were sold in 2016.

TIMBERLANDS

How We Did Third Quarter 2017 and Year-to-Date 2017

	QUARTER ENDED				AMOUNT OF CHANGE			YEAR-TO-DATE ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016		2017 VS. 2016			SEPTEMBER 2017		SEPTEMBER 2016		2017 VS.  2016
Net sales to unaffiliated customers:
Delivered logs(1):
West	$	221	$	217	$	4		$	673	$	664	$	9
South	155		160		(5		)	451		415		36
North	25		29		(4		)	68		61		7
Other	17		11		6			48		25		23
Subtotal delivered logs sales	418		417		1			1,240		1,165		75
Stumpage and pay-as-cut timber	23		24		(1		)	52		62		(10		)
Uruguay operations(2)	23		21		2			63		58		5
Recreational and other lease revenue	16		15		1			45		29		16
Other	11		7		4			46		28		18
Subtotal net sales to unaffiliated customers	491		484		7			1,446		1,342		104
Intersegment sales:
United States	125		149		(24		)	381		446		(65		)
Other	54		67		(13		)	163		185		(22		)
Subtotal intersegment sales	179		216		(37		)	544		631		(87		)
Total sales	$	670	$	700	$	(30	)	$	1,990	$	1,973	$	17
Costs of products sold	$	517	$	559	$	(42	)	$	1,512	$	1,527	$	(15	)
Operating income and Net contribution to earnings	$	131	$	122	$	9		$	267	$	376	$	(109	)

(1) The West region includes Washington and Oregon. The South region includes Virginia, North Carolina, South Carolina, Florida, Georgia, Alabama, Mississippi, Louisiana, Arkansas, Texas and Oklahoma. The North region includes West Virginia, Maine, New Hampshire, Vermont, Michigan, Wisconsin and Montana. Other includes our Canadian operations and the timberlands of the Twin Creeks Venture that we manage.

(2) Includes logs, plywood and hardwood lumber harvested or produced by our international operations in Uruguay. On June 2, 2017, we agreed to sell all of our equity interest in the subsidiaries that collectively own and operate our Uruguayan timberlands and manufacturing operations. The held for sale designation of the assets and liabilities of the Uruguayan operations caused us to record a $147 million impairment within the Timberlands business segment during second quarter 2017. On September 1, 2017, we announced the completion of the sale. Refer to Note 2: Business Segments as well as Note 3: Discontinued Operations and Other Divestitures for further information.

Comparing Third Quarter 2017 with Third Quarter 2016

Net sales – unaffiliated customers

Net sales to unaffiliated customers increased $7 million – 1 percent – primarily due to:

• a $6 million increase in Other delivered logs, primarily attributable to increases in delivered logs sales volumes from the Twin Creeks Venture (refer to Note 7: Related Parties for further information regarding our Twin Creeks Venture).

• a $4 million increase in Western log sales, primarily attributable to a 18 percent increase in average sales realizations for delivered logs. This increase was partially offset by a 14 percent decrease in delivered log sales volumes.

• a $4 million increase in "Other" sales, primarily attributable to increased chip sales in Canada, which we previously sold to our former Cellulose Fibers segment and were intersegment sales during the third quarter 2016.

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These increases were partially offset by:

• a $5 million decrease in Southern log sales as a result of a 3 percent decrease in average sales realizations.

• a $4 million decrease in Northern log sales, primarily attributable to a 15 percent decrease in delivered logs sales volumes

Intersegment sales

Intersegment sales decreased $37 million – 17 percent – due to a decrease in chip and log intersegment sales, which were previously sold to our Cellulose Fibers business segment.

Costs of products sold

Costs of products sold decreased $42 million – 8 percent – primarily due to a 3 percent decrease in sales volumes.

Operating income and Net contribution to earnings

Operating income and Net contribution to earnings increased $9 million – 7 percent – primarily attributable to to the changes in net sales and costs of products sold as explained above.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net sales - unaffiliated customers

Net sales to unaffiliated customers increased $104 million – 8 percent – primarily due to:

• a $36 million increase in Southern log sales, primarily attributable to a 12 percent increase in delivered log sales volumes. This increase was partially offset by a 3 percent decrease in average sales realizations.

• a $23 million increase in Other delivered logs primarily attributable to increases in delivered logs sales volumes from the Twin Creeks Venture (refer to Note 7: Related Parties for further information regarding our Twin Creeks Venture).

• a $9 million increase in Western log sales, attributable to a 10 percent increase in average sales realizations. This increase was partially offset by a 7 percent decrease in delivered log sales volumes.

• a $7 million increase in Northern log sales, attributable to a 13 percent increase in delivered log sales volumes. This increase was partially offset by a 1 percent decrease in average sales realizations.

Intersegment sales

Intersegment sales decreased $87 million – 14 percent – due to a decrease in chip and log intersegment sales, which were previously sold to our Cellulose Fibers business segment.

Costs of products sold

Costs of products sold decreased $15 million – 1 percent – primarily due to a 7 percent decrease in sales volumes.

Operating income and Net contribution to earnings

Operating income and Net contribution to earnings decreased $109 million – 29 percent – primarily attributable to the $147 million noncash pretax impairment charge recognized in relation to the Uruguayan sale agreement (refer toNote 3: Discontinued Operations and Other Divestitures). The impairment charge was partially offset by the changes in net sales and costs of products sold as explained above.

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THIRD-PARTY LOG SALES VOLUMES AND FEE HARVEST VOLUMES

	QUARTER ENDED		AMOUNT OF CHANGE		YEAR-TO-DATE ENDED		AMOUNT OF CHANGE
VOLUMES IN THOUSANDS(1)(2)	SEPTEMBER 2017	SEPTEMBER 2016	2017 VS. 2016		SEPTEMBER 2017	SEPTEMBER 2016	2017 VS.  2016
Third party log sales – tons:
West	1,910	2,209	(299	)	6,210	6,705	(495	)
South	4,527	4,538	(11	)	13,105	11,659	1,446
North	428	503	(75	)	1,135	1,005	130
Other	424	263	161		1,226	601	625
Total (3)	7,289	7,513	(224	)	21,676	19,970	1,706
Fee harvest volumes – tons:
West	2,230	2,744	(514	)	7,539	8,525	(986	)
South	6,953	6,992	(39	)	19,799	19,083	716
North	565	678	(113	)	1,570	1,392	178
Other	569	191	378		1,384	372	1,012
Total (3)	10,317	10,605	(288	)	30,292	29,372	920

(1) The West region includes Washington and Oregon. The South region includes Virginia, North Carolina, South Carolina, Florida, Georgia, Alabama, Mississippi, Louisiana, Arkansas, Texas and Oklahoma. The North region includes West Virginia, Maine, New Hampshire, Vermont, Michigan, Wisconsin, and Montana. Other includes our Canadian operations and the timberlands of the Twin Creeks Venture that we manage.

(2) Western logs are primarily transacted in thousand board feet (MBF) but are converted to ton equivalents for external reporting purposes.

(3) Total volumes exclude third party log sales and fee harvest volumes from our Uruguayan operations, which we sold during third quarter 2017. Refer to Note 3: Discontinued Operations and Other Divestituresfor further information regarding this sale.

REAL ESTATE, ENERGY AND NATURAL RESOURCES

How We Did Third Quarter 2017 and Year-to-Date 2017

	QUARTER ENDED				AMOUNT OF CHANGE		YEAR-TO-DATE ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016		2017 VS. 2016		SEPTEMBER 2017		SEPTEMBER 2016		2017 VS.  2016
Net sales to unaffiliated buyers:
Real estate	$	64	$	31	$	33	128		87		41
Energy and natural resources	18		17		1		53		38		15
Total	$	82	$	48	$	34	$	181	$	125	$	56
Costs of products sold	$	31	$	26	$	5	$	67	$	65	$	2
Operating income	$	46	$	14	$	32	$	95	$	41	$	54
Equity earnings from joint venture	1		1		—		1		1		—
Net contribution to earnings	$	47	$	15	$	32	$	96	$	42	$	54

The timing of real estate sales is a function of many factors, including the general state of the economy, demand in local real estate markets, the ability to obtain entitlements, the ability of buyers to obtain financing, the number of competing properties listed for sale, the seasonal nature of sales (particularly in the northern states), the plans of adjacent landowners, our expectation of future price appreciation, the timing of harvesting activities, and the availability of government and not-for-profit funding (especially for conservation sales). In any period the average sales price per acre will vary based on the location and physical characteristics of parcels sold.

Comparing ThirdQuarter 2017 with Third Quarter 2016

Net sales - Unaffiliated buyers

Net sales to unaffiliated buyers increased $34 million – 71 percent – primarily attributable to a $33 million increase in net real estate sales. This is attributable to increases in volume of acres sold, partially offset by a decrease in average price realized per acre.

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Costs of products sold

Costs of products sold increased $5 million – 19 percent – attributable to higher sales volumes and higher basis of real estate sold.

Net contribution to earnings

Net contribution to earnings for the quarter increased $32 million – 213 percent – primarily attributable to increased gross margin as explained above.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net sales - Unaffiliated buyers

Net sales to unaffiliated buyers increased $56 million – 45 percent – attributable to:

• Net real estate sales increased $41 million – 47 percent – attributable to increases in volume of acres sold, partially offset by a decrease in average price realized per acre.

• Net energy and natural resources sales increased $15 million – 39 percent – due primarily to increases in sales volumes attributable to the operations acquired in our merger with Plum Creek.

Costs of products sold

Costs of products sold increased $2 million – 3 percent – attributable to increased costs of products sold in Energy and natural resources, attributable to increased ENR sales volumes.

Net contribution to earnings

Net contribution to earnings increased $54 million – 129 percent – attributable to increased gross margin as explained above.

REAL ESTATE SALES STATISTICS

	QUARTER ENDED				AMOUNT OF CHANGE			YEAR-TO-DATE ENDED				AMOUNT OF CHANGE
	SEPTEMBER 2017		SEPTEMBER 2016		2017 VS. 2016			SEPTEMBER 2017		SEPTEMBER 2016		2017 VS.  2016
Acres sold	35,749		12,853		22,896			59,009		38,098		20,911
Average price per acre	$	1,784	$	2,354	$	(570	)	$	2,081	$	2,271	$	(190	)

WOOD PRODUCTS

How We Did Third Quarter 2017 and Year-to-Date 2017

	QUARTER ENDED				AMOUNT OF CHANGE			YEAR-TO-DATE ENDED				AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016		2017 VS. 2016			SEPTEMBER 2017		SEPTEMBER 2016		2017 VS.  2016
Net sales:
Structural lumber	$	525	$	495	$	30		$	1,541	$	1,412	$	129
Engineered solid section	131		119		12			378		343		35
Engineered I-joists	93		79		14			251		218		33
Oriented strand board	243		199		44			671		544		127
Softwood plywood	45		48		(3		)	136		133		3
Medium density fiberboard	48		49		(1		)	146		113		33
Other products produced	68		51		17			206		143		63
Complementary building products	146		137		9			417		397		20
Total	$	1,299	$	1,177	$	122		$	3,746	$	3,303	$	443
Costs of products sold	$	1,005	$	980	$	25		$	2,933	$	2,799	$	134
Operating income and Net contribution to earnings	$	40	$	170	$	(130	)	$	389	$	413	$	(24	)

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Comparing ThirdQuarter 2017 with Third Quarter 2016

Net sales

Net sales increased $122 million – 10 percent – primarily due to:

• a$44 million increase in oriented strand board sales, attributable to a 28 percent increase in average sales realizations, partially offset by a 5 percent decrease in sales volumes.

• a $30 million increase in structural lumber sales, attributable to a 12 percent increase in average sales realizations, partially offset by a 5 percent decrease in sales volumes.

• a $17 million increase in other products produced, primarily attributable to increased chip sales, which were previously sold to our former Cellulose Fibers segment and were intersegment sales during third quarter 2016. Upon completion of the sales of our former Cellulose Fibers businesses, chips previously sold to Cellulose Fibers are sales to unaffiliated customers.

• a $14 million increase in engineered I-joists, attributable to a 15 percent increase in sales volumes and a 4 percent increase in average sales realizations.

• a $12 million increase in engineered solid section, attributable to a 7 percent increase in average sales realizations and a 3 percent increase in sales volumes.

Costs of products sold

Costs of products sold increased $25 million – 3 percent – primarily due to an increase in log and manufacturing costs, offset by a decrease in sales volume.

Operating income and Net contribution to earnings

Operating income and Net contribution to earnings decreased $130 million – 76 percent – primarily attributable to:

• increased "Charges for product remediation" – $190 million. Refer to Note 16: Charges for Product Remediation for further information.

• a $6 million impairment on non-strategic assets recognized during third quarter 2017. Refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments for further detail.

• increased "Other operating costs, net," related to retroactive and prospective countervailing and antidumping duties – $5 million. Refer to Softwood Lumber Agreement for further information.

These increases were partially offset by increased gross margin, as explained above.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net sales

Net sales increased $443 million – 13 percent – primarily due to:

• a $129 million increase in structural lumber sales, attributable to a 12 percent increase in average sales realizations, partially offset by a 2 percent decrease in sales volumes.

• a$127 million increase in oriented strand board sales, attributable to a 24 percent increase in average sales realizations, partially offset by a 1 percent decrease in sales volumes.

• a $63 million increase in other products produced, primarily attributable to increased chip sales, which were previously sold to our former Cellulose Fibers segment and were intersegment sales during year-to-date 2016. Upon completion of the sales of our former Cellulose Fibers businesses, chips previously sold to Cellulose Fibers are sales to unaffiliated customers.

• a $35 million increase in engineered solid section, attributable to a 8 percent increase in sales volumes and a 2 percent increase in average sales realizations.

• a $33 million increase in engineered I-joists, attributable to a 13 percent increase in sales volumes and a 2 percent increase in average sales realizations.

• a $33 million increase in medium density fiberboard sales, attributable to a 20 percent increase in sales volumes and a 7 percent increase in average sales realizations.

Costs of products sold

Costs of products sold increased $134 million – 5 percent – primarily due to an increase in log and manufacturing costs, offset by a decrease in sales volume.

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Operating income and Net contribution to earnings

Operating income and Net contribution to earnings decreased $24 million – 6 percent – primarily attributable to:

• increased "Charges for product remediation" – $240 million. Refer to Note 16: Charges for Product Remediation for further information.

• increased "Other operating costs, net," primarily related to retroactive and prospective countervailing and antidumping duties – $16 million. Refer to Softwood Lumber Agreement for further information.

• a $6 million impairment on non-strategic assets recognized during third quarter 2017. Refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments for further detail.

These increased charges were partially offset by increased gross margin, as explained above.

THIRD-PARTY SALES VOLUMES

	QUARTER ENDED		AMOUNT OF CHANGE		YEAR-TO-DATE ENDED		AMOUNT OF CHANGE
VOLUMES IN MILLIONS(1)	SEPTEMBER 2017	SEPTEMBER 2016	2017 VS. 2016		SEPTEMBER 2017	SEPTEMBER 2016	2017 VS.  2016
Structural lumber – board feet	1,172	1,233	(61	)	3,548	3,634	(86	)
Engineered solid section – cubic feet	6.4	6.2	0.2		19.2	17.7	1.5
Engineered I-joists – lineal feet	60	53	7		166	147	19
Oriented strand board – square feet (3/8”)	741	776	(35	)	2,274	2,296	(22	)
Softwood plywood – square feet (3/8”)	117	127	(10	)	358	368	(10	)
Medium density fiberboard – square feet (3/4”)	58	64	(6	)	177	147	30

(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 oriented strand board and engineered solid section are also used to manufacture engineered I-joists.

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	QUARTER ENDED		AMOUNT OF CHANGE		YEAR-TO-DATE ENDED		AMOUNT OF CHANGE
VOLUMES IN MILLIONS	SEPTEMBER 2017	SEPTEMBER 2016	2017 VS. 2016		SEPTEMBER 2017	SEPTEMBER 2016	2017 VS.  2016
Structural lumber – board feet:
Production	1,093	1,130	(37	)	3,391	3,464	(73	)
Outside purchase	52	65	(13	)	152	193	(41	)
Total	1,145	1,195	(50	)	3,543	3,657	(114	)
Engineered solid section – cubic feet:
Production	6.4	5.7	0.7		19.3	17.2	2.1
Outside purchase	0.4	—	0.4		1.4	—	1.4
Total	6.8	5.7	1.1		20.7	17.2	3.5
Engineered I-joists – lineal feet:
Production	58	49	9		161	141	20
Outside purchase	6	3	3		12	7	5
Total	64	52	12		173	148	25
Oriented strand board – square feet (3/8”):
Production	744	777	(33	)	2,256	2,259	(3	)
Outside purchase	105	102	3		309	261	48
Total	849	879	(30	)	2,565	2,520	45
Softwood plywood – square feet (3/8”):
Production	88	105	(17	)	284	304	(20	)
Outside purchase	21	22	(1	)	62	66	(4	)
Total	109	127	(18	)	346	370	(24	)
Medium density fiberboard – square feet (3/4"):
Production	63	68	(5	)	182	155	27
Outside purchase	—	—	—		—	—	—
Total	63	68	(5	)	182	155	27

UNALLOCATED ITEMS

Unallocated items are gains or charges from continuing operations not related 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, the elimination of intersegment profit in inventory and the LIFO reserve. As a result of reclassifying our former Cellulose Fibers segment as discontinued operations, unallocated items also includes retained indirect corporate overhead costs previously allocated to the former segment.

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NET CONTRIBUTION TO EARNINGS – UNALLOCATED ITEMS

	QUARTER ENDED						AMOUNT OF CHANGE			YEAR-TO-DATE ENDED						AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			2017 VS. 2016			SEPTEMBER 2017			SEPTEMBER 2016			2017 VS.  2016
Unallocated corporate function expense	$	(19	)	$	(21	)	$	2		$	(55	)	$	(62	)	$	7
Unallocated share-based compensation	(1		)	(4		)	3			(7		)	(5		)	(2		)
Unallocated pension service costs	(1		)	(2		)	1			(3		)	(4		)	1
Foreign exchange gain (loss)	3			(1		)	4			—			13			(13		)
Elimination of intersegment profit in inventory and LIFO	3			2			1			(6		)	(6		)	—
Gains on sales of non-strategic assets	4			1			3			8			45			(37		)
Charges for integration and restructuring, closures and asset impairments:
Plum Creek merger- and integration-related costs	(6		)	(14		)	8			(20		)	(132		)	112
Other restructuring, closures, and asset impairments	—			(1		)	1			—			(2		)	2
Other	5			(5		)	10			(13		)	(29		)	16
Operating income (loss)	(12		)	(45		)	33			(96		)	(182		)	86
Equity earnings from joint venture(1)	—			8			(8		)	—			20			(20		)
Non-operating pension and other postretirement benefit (costs) credits (2)	(16		)	13			(29		)	(46		)	37			(83		)
Interest income and other	11			15			(4		)	29			34			(5		)
Net contribution to earnings	$	(17	)	$	(9	)	$	(8	)	$	(113	)	$	(91	)	$	(22	)

(1) The quarter and year-to-date period ended 2016 includes equity earnings from our Timberland Venture, which effective August 31, 2016, is consolidated as a wholly-owned subsidiary.

(2) During first quarter 2017 we adopted ASU 2017-07, which requires us to show components of pension and other postretirement benefit costs (interest, expected return on plan assets, amortization of actuarial gains or losses, and amortization of prior service credits or costs) on the Consolidated Statement of Operations as a line item outside of operating income. We reclassified these components for all periods shown above. Refer to Note 1: Basis of Presentation for further details.

Comparing Third Quarter 2017 with Third Quarter 2016

Changes in Unallocated Items were primarily related to:

• a $29 million increase in expense related to "Non-operating pension and other postretirement benefit (costs) credits" due to a decrease in the expected return on our plan assets and an increase in the amortization of actuarial losses.

• charges related to our merger with Plum Creek decreased $8 million. Refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Changes in Unallocated Items were primarily related to:

• charges related to our merger with Plum Creek decreased $112 million. Refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments.

• an increase in expense related to "Non-operating pension and other postretirement benefit (costs) credits" due to a decrease in the expected return on our plan assets and an increase in the amortization of actuarial losses – $83 million.

• a $37 million decrease in gains on sales of non-strategic assets, primarily due to a $36 million pretax gain recognized in first quarter 2016 related to the sale of our Federal Way, Washington headquarters campus, which is recorded in "Other operating costs (income), net" in our Consolidated Statement of Operations.

• a decrease in equity earnings from our joint venture – $20 million. As of August 31, 2016, the Timberland Venture became a fully consolidated, wholly owned subsidiary and therefore eliminated our equity method investment at that time. Refer to Note 18: Income Taxes for further information.

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INTEREST EXPENSE

Our interest expense, net of capitalized interest incurred was:

• $98 million for the third quarter 2017 and $297 million for year-to-date 2017; and

• $114 million for the third quarter 2016 and $323 million for year-to-date 2016.

Interest expense decreased $16 million compared to third quarter 2016 and $26 million compared to year-to-date 2016 primarily due to the decreased average outstanding debt in 2017 versus 2016. During first quarter 2016, we entered into two term loans totaling $2.5 billion, both of which were paid in full and terminated in fourth quarter 2016. As such, only the results for 2016 included interest incurred on these loans.

INCOME TAXES

Our provision for income taxes for our continuing operations was:

• $(27) million for the third quarter 2017 and $31 million year-to-date 2017; and

• $22 million for the third quarter 2016 and $64 million year-to-date 2016.

Our provision for income taxes is primarily driven by earnings generated by our taxable REIT subsidiaries. Overall performance results for our business segments can be found in Consolidated Results.

Refer to Note 18: Income Taxes for additional information.

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

• maintain access to all major financial markets.

CASH FROM OPERATIONS

Consolidated net cash provided by our operations was:

• $847 million for year-to-date 2017; and

• $886 million for year-to-date 2016.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net cash provided by our operations decreased $39 million, primarily due to:

• decreased operating cash flows from discontinued operations of $192 million and

• an increase in cash paid for income taxes of $155 million.

These decreases were offset by increased cash flows from our business segments of $347 million. See Performance Measures for our Adjusted EBITDA by segment.

CASH FROM INVESTING ACTIVITIES

Consolidated net cash provided by investing activities was:

• $192 million for year-to-date 2017; and

• $591 million for year-to-date 2016.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net cash from investing activities decreased $399 million, primarily due to the following non-recurring cash inflows that occurred in 2016:

• $440 million of proceeds from contribution of timberlands to the Twin Creeks Venture;

• $287 million of proceeds from the sale of our liquid packaging board business in the third quarter 2016; and

• $70 million of proceeds from the sale of our Federal Way, Washington headquarters campus.

These were offset by approximately $403 million of proceeds from the sale of our Uruguayan operations in the third quarter 2017.

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Summary of Capital Spending by Business Segment

	YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016
Timberlands	$	79	$	77
Real Estate & ENR	2		1
Wood Products	176		152
Unallocated Items	2		10
Discontinued operations	—		63
Total	$	259	$	303

We expect our net capital expenditures for 2017 to be $435 million, which is comparable to 2016 capital spending for continuing operations. The amount we spend on capital expenditures could change due to:

• capital allocation priorities,

• future economic conditions,

• environmental regulations,

• changes in the composition of our business,

• weather and

• timing of equipment purchases.

CASH FROM FINANCING ACTIVITIES

Consolidated net cash used in financing activities was:

• $1,218 million for year-to-date 2017; and

• $1,710 million for year-to-date 2016.

Comparing Year-to-Date 2017 with Year-to-Date 2016

Net cash used in financing activities decreased $492 million primarily due to the following:

• a $2.0 billion decrease in cash paid to repurchase common shares in 2016;

• repayment of Plum Creek's outstanding debt at the merger date in 2016 in the amount of $720 million; and

• a $22 million decrease in cash dividends paid on preference shares.

These were offset by $1.7 billionof cash proceeds from issuance of new term loan credit facilities during 2016, as compared to $225 million of cash proceeds from issuance of new term loans in 2017. Additionally, payments of long-term debt increased by $108 million in year-to-date 2017.

Lines of Credit

During March 2017, we entered into a new $1.5 billion five-year senior unsecured revolving credit facility that expires in March 2022. This replaces a $1 billion senior unsecured revolving credit facility that was set to expire September 2018. As of September 30, 2017, there were no borrowings outstanding.

Refer to Note 10: Long-Term Debt and Lines of Credit for further information.

Debt Covenants

As of September 30, 2017, Weyerhaeuser Company was in compliance with its debt covenants. There have been no significant changes during third quarter 2017 to the debt covenants presented in our 2016 Annual Report on Form 10-K for our existing long-term debt instruments.

Term Loan Payment and Replacement

On July 24, 2017 we prepaid a $550 million variable-rate term loan originally set to mature in 2020 (2020 term loan). The 2020 term loan was prepaid using available cash of $325 million as well as borrowing proceeds from a new $225 million variable-rate term loan set to mature in 2026 (2026 term loan).

During August 2017, we paid our $281 million 6.95% debentures, originally set to mature in August 2017.

Refer to Note 10: Long-Term Debt and Lines of Credit for further information.

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Option Exercises

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

• $89 million in 2017; and

• $48 million in 2016.

Our average stock price was $33.01 and $29.74 for year-to-date 2017 and 2016, respectively.

Paying Dividends and Repurchasing Stock

We paid cash dividends on common shares of:

• $699 million in 2017; and

• $700 million in 2016.

The slight decrease in dividends paid is due to decreased common shares outstanding at the dividend record dates.

The 2016 Share Repurchase Authorization was approved in November 2015 by our Board of Directors and authorized management to repurchase up to $2.5 billion of outstanding shares. During third quarter 2017, we did not repurchase any shares. As of September 30, 2017, we had remaining authorization of $500 million for future stock repurchases.

We record share repurchases upon the trade date as opposed to the settlement date when cash is disbursed. We record a liability for repurchases that have not been cash settled. There were no unsettled repurchases as of September 30, 2017.

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 for investors 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, basis of real estate sold, unallocated pension service costs and special items. Adjusted EBITDA excludes results from joint ventures.

ADJUSTED EBITDA BY SEGMENT

	QUARTER ENDED						AMOUNT OF CHANGE			YEAR-TO-DATE ENDED						AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			2017 VS. 2016			SEPTEMBER 2017			SEPTEMBER 2016			2017 VS.  2016
Adjusted EBITDA by Segment:
Timberlands	$	220		$	223		$	(3	)	$	684		$	642		$	42
Real Estate & ENR	74			37			37			154			99			55
Wood Products	278			203			75			759			509			250
	572			463			109			1,597			1,250			347
Unallocated Items	(3		)	(29		)	26			(68		)	(67		)	(1		)
Adjusted EBITDA	$	569		$	434		$	135		$	1,529		$	1,183		$	346

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We reconcile Adjusted EBITDA by segment 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. The table below reconciles Adjusted EBITDA for the quarter ended September 30, 2017:

DOLLAR AMOUNTS IN MILLIONS	Timberlands		Real Estate & ENR			Wood Products		Unallocated Items			Total
Adjusted EBITDA by Segment:
Net earnings											$	130
Earnings from discontinued operations, net of income taxes											—
Interest expense, net of capitalized interest											98
Income taxes											(27		)
Net contribution to earnings	$	131	$	47		$	40	$	(17	)	$	201
Equity earnings from joint ventures	—		(1		)	—		—			(1		)
Non-operating pension and other postretirement benefit costs (credits)	—		—			—		16			16
Interest income and other	—		—			—		(11		)	(11		)
Operating income (loss)	131		46			40		(12		)	205
Depreciation, depletion and amortization	89		4			37		2			132
Basis of real estate sold	—		24			—		—			24
Unallocated pension service costs	—		—			—		1			1
Special items(1)(2)	—		—			201		6			207
Adjusted EBITDA	$	220	$	74		$	278	$	(3	)	$	569

(1) Special items attributable to Wood Products includes: $190 million of product remediation charges, a $6 million impairment on a non-strategic asset and $5 million of retroactive and prospective countervailing and antidumping duties.

(2) Special items attributable to Unallocated Items include $6 million of Plum Creek merger-related costs.

The table below reconciles Adjusted EBITDA for the quarter ended September 30, 2016:

DOLLAR AMOUNTS IN MILLIONS	Timberlands		Real Estate & ENR			Wood Products		Unallocated Items			Total
Adjusted EBITDA by Segment:
Net earnings											$	227
Earnings from discontinued operations, net of income taxes											(65		)
Interest expense, net of capitalized interest											114
Income taxes											22
Net contribution to earnings	$	122	$	15		$	170	$	(9	)	$	298
Equity earnings from joint ventures	—		(1		)	—		(8		)	(9		)
Non-operating pension and other postretirement benefit costs (credits)	—		—			—		(13		)	(13		)
Interest income and other	—		—			—		(15		)	(15		)
Operating income (loss)	122		14			170		(45		)	261
Depreciation, depletion and amortization	101		4			33		—			138
Basis of real estate sold	—		19			—		—			19
Unallocated pension service costs	—		—			—		2			2
Special items(1)	—		—			—		14			14
Adjusted EBITDA	$	223	$	37		$	203	$	(29	)	$	434

(1) Special items include $14 million of Plum Creek merger-related costs.

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The table below reconciles Adjusted EBITDA for the year-to-date period ended September 30, 2017:

DOLLAR AMOUNTS IN MILLIONS	Timberlands		Real Estate & ENR			Wood Products		Unallocated Items			Total
Adjusted EBITDA by Segment:
Net earnings											$	311
Earnings from discontinued operations, net of income taxes											—
Interest expense, net of capitalized interest											297
Income taxes											31
Net contribution to earnings	$	267	$	96		$	389	$	(113	)	$	639
Equity earnings from joint ventures	—		(1		)	—		—			(1		)
Non-operating pension and other postretirement benefit costs (credits)	—		—			—		46			46
Interest income and other	—		—			—		(29		)	(29		)
Operating income (loss)	267		95			389		(96		)	655
Depreciation, depletion and amortization	270		11			108		5			394
Basis of real estate sold	—		48			—		—			48
Unallocated pension service costs	—		—			—		3			3
Special items(1)(2)(3)	147		—			262		20			429
Adjusted EBITDA	$	684	$	154		$	759	$	(68	)	$	1,529

(1) Special items attributable to Timberlands include $147 million of impairment charges related to our Uruguayan operations.

(2) Special items attributable to Wood Products includes: $240 million product remediation charges, $16 million of retroactive and prospective countervailing and antidumping duties and a $6 million impairment on a non-strategic asset.

(3) Special items attributable to Unallocated Items include $20 million of Plum Creek merger-related costs.

The table below reconciles Adjusted EBITDA for the year-to-date period ended September 30, 2016:

DOLLAR AMOUNTS IN MILLIONS	Timberlands		Real Estate & ENR			Wood Products		Unallocated Items			Total
Adjusted EBITDA by Segment:
Net earnings											$	476
Earnings from discontinued operations, net of income taxes											(123		)
Interest expense, net of capitalized interest											323
Income taxes											64
Net contribution to earnings	$	376	$	42		$	413	$	(91	)	$	740
Equity earnings from joint ventures	—		(1		)	—		(20		)	(21		)
Non-operating pension and other postretirement benefit costs (credits)	—		—			—		(37		)	(37		)
Interest income and other	—		—			—		(34		)	(34		)
Operating income (loss)	376		41			413		(182		)	648
Depreciation, depletion and amortization	266		9			96		4			375
Basis of real estate sold	—		49			—		—			49
Unallocated pension service costs	—		—			—		4			4
Special items(1)	—		—			—		107			107
Adjusted EBITDA	$	642	$	99		$	509	$	(67	)	$	1,183

(1)     Special items include: $132 million of Plum Creek merger-related costs, $36 million gain on sale of non-strategic assets and $11 million of legal expense.

CRITICAL ACCOUNTING POLICIES

There have been no significant changes during third quarter 2017 to our critical accounting policies presented in our 2016 Annual Report on Form 10-K.

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QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

LONG-TERM INDEBTEDNESS OBLIGATIONS

The following summary of our long-term indebtedness obligations includes:

• scheduled principal repayments for the next five years and after;

• weighted average interest rates for debt maturing in each of the next five years and after; and

• estimated fair values of outstanding obligations.

We estimate the fair value of our debt instruments using quoted market prices we received for the same types and issues of our debt or on the discounted value of the future cash flows using market yields for the same type and comparable issues of debt. Changes in market rates of interest affect the fair value of our fixed-rate debt.

SUMMARY OF LONG-TERM INDEBTEDNESS PRINCIPAL OBLIGATIONS AS OF SEPTEMBER 30, 2017

DOLLAR AMOUNTS IN MILLIONS
	2017			2018			2019			2020			2021			THEREAFTER			TOTAL			FAIR VALUE
Fixed-rate debt (1)	$	—		$	62		$	500		$	—		$	719		$	4,450		$	5,731		$	6,872
Average interest rate	—		%	7.00		%	7.38		%	—		%	5.56		%	6.38		%	6.37		%	N/A
Variable-rate debt (1)	$	—		$	—		$	—		$	—		$	—		$	225		$	225		$	225
Average interest rate	—		%	—		%	—		%	—		%	—		%	2.84		%	2.84		%	N/A

(1) Excludes $39 million of unamortized discounts, capitalized debt expense and fair value step-up (related to Plum Creek merger).

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 September 30, 2017, based on an evaluation of the company’s disclosure controls and procedures as of that date.

CHANGES IN INTERNAL CONTROLS

During 2017, we integrated the acquired Plum Creek operations into our overall internal controls over financial reporting.

Except as described above, no changes occurred in the company’s internal control over financial reporting during third quarter 2017 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 12: Legal Proceedings, Commitments and Contingencies.”

RISK FACTORS

There have been no material changes with respect to the risk factors disclosed in our 2016 Annual Report on Form 10-K.

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

There have been no share repurchases during the third quarter and year-to-date 2017.

DEFAULTS UPON SENIOR SECURITIES

None.

MINE SAFETY DISCLOSURES

Not applicable.

OTHER INFORMATION

None.

36

EXHIBITS

12.1	Statements regarding computation of ratios
31.1	Certification pursuant to Rule 13a-14(a) under the Securities Exchange Act of 1934
32.1	Certification pursuant to Rule 13a-14(b) under the Securities Exchange Act of 1934, 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

37

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:	October 27, 2017
By:	/s/ Jeanne M. Hillman
	Jeanne M. Hillman
	Vice President and Chief Accounting Officer

38

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 years-to-date ended September 30, 2017, and 2016

(Dollar amounts in millions)

	YEAR-TO-DATE ENDED
	SEPTEMBER 2017		SEPTEMBER 2016
Available earnings:
Earnings from continuing operations before interest expense, amortization of debt expense and income taxes	$	638	$	745
Add: interest portion of rental expense	13		13
Add: distributed income of equity affiliates	1		39
Add: undistributed (income) losses of equity affiliates and income attributable to noncontrolling interests in subsidiaries	—		(20		)
Available earnings	$	652	$	777
Fixed charges:
Interest expense and other financial charges	$	303	$	333
Interest portion of rental expense	13		13
Total fixed charges	316		346
Dividends on preference shares (pretax)	—		26
Total fixed charges and preference dividends	$	316	$	372
Ratio of earnings to fixed charges	2.06		2.25
Ratio of earnings to combined fixed charges and preference dividends	2.06		2.09

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:	October 27, 2017
/s/ DOYLE R. SIMONS
Doyle R. Simons President and Chief Executive Officer

EXHIBIT 31

Certification Pursuant to Rule 13a-14(a)

Under the Securities Exchange Act of 1934

I, Russell S. Hagen, 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:	October 27, 2017
/s/ RUSSELL S. HAGEN
Russell S. Hagen Senior 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 October 27, 2017 (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:	October 27, 2017
/s/ RUSSELL S. HAGEN
Russell S. Hagen Senior Vice President and Chief Financial Officer
Dated:	October 27, 2017

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.

A signed original of this written statement has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2017	Oct. 23, 2017
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	Sep. 30, 2017
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Common Stock, Shares Outstanding		754,829,417

XML

CONSOLIDATED STATEMENT OF OPERATIONS - USD ($) shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net sales	$ 1,872	$ 1,709	$ 5,373	$ 4,769
Costs of products sold	1,374	1,328	3,982	3,702
Gross margin	498	381	1,391	1,067
Selling expenses	22	22	66	67
General and administrative expenses	75	80	238	253
Research and development expenses	4	5	12	14
Charges for integration and restructuring, closures and asset impairments (Note 15)	14	16	178	141
Charges for product remediation (Note 16)	190	0	240	0
Other operating costs (income), net (Note 17)	(12)	(3)	2	(56)
Operating income	205	261	655	648
Equity earnings from joint ventures (Note 7)	1	9	1	21
Non-operating pension and other postretirement benefit (costs) credits	(16)	13	(46)	37
Interest income and other	11	15	29	34
Interest expense, net of capitalized interest	(98)	(114)	(297)	(323)
Earnings from continuing operations before income taxes	103	184	342	417
Income taxes (Note 18)	27	(22)	(31)	(64)
Earnings from continuing operations	130	162	311	353
Earnings from discontinued operations, net of income taxes (Note 3)	0	65	0	123
Net earnings	130	227	311	476
Dividends on preference shares (Note 5)	0	0	0	(22)
Net earnings attributable to Weyerhaeuser common shareholders	$ 130	$ 227	$ 311	$ 454
Earnings per share attributable to Weyerhaeuser common shareholders, basic (Note 5):
Income (Loss) from Continuing Operations, Per Basic Share	$ 0.17	$ 0.22	$ 0.41	$ 0.47
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share	0.00	0.08	0.00	0.17
Earnings Per Share, Basic	0.17	0.30	0.41	0.64
Earnings per share attributable to Weyerhaeuser common shareholders, diluted (Note 5)
Income (Loss) from Continuing Operations, Per Diluted Share	0.17	0.21	0.41	0.46
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share	0.00	0.09	0.00	0.18
Earnings Per Share, Diluted	0.17	0.30	0.41	0.64
Dividends paid per share	$ 0.31	$ 0.31	$ 0.93	$ 0.93
Weighted average shares outstanding (in thousands) (Note 5):
Basic	753,535	749,587	752,301	708,395
Diluted	756,903	754,044	756,058	712,205

XML

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net earnings	$ 130	$ 227	$ 311	$ 476
Other comprehensive income (loss):
Foreign currency translation adjustments	24	(5)	35	34
Actuarial gains, net of tax expense of $12, $15, $62 and $40	18	29	90	70
Prior service costs, net of tax benefit of $0, $0, $1 and $0	(1)	(1)	(5)	(3)
Unrealized gains on available-for-sale securities	1	0	2	1
Total other comprehensive income	42	23	122	102
Total comprehensive income	$ 172	$ 250	$ 433	$ 578

XML

CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (Parenthetical) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Tax expense (benefit) of actuarial gains (losses)	$ 12	$ 15	$ 62	$ 40
Tax expense (benefit) of prior service credits (costs)	$ 0	$ 0	$ (1)	$ 0

XML

CONSOLIDATED BALANCE SHEET - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
ASSETS
Cash and cash equivalents	$ 497	$ 676
Receivables, less discounts and allowances of $1 and $1	485	390
Receivables for taxes	65	84
Inventories (Note 6)	340	358
Prepaid expenses and other current assets	130	114
Total current assets	1,517	1,622
Property and equipment, less accumulated depreciation of $3,417 and $3,306	1,534	1,562
Construction in progress	225	213
Timber and timberlands at cost, less depletion charged to disposals	13,627	14,299
Minerals and mineral rights, less depletion	312	319
Investments in and advances to joint ventures (Note 7)	33	56
Goodwill	40	40
Deferred tax assets	240	293
Other assets	259	224
Restricted financial investments held by variable interest entities	615	615
Total assets	18,402	19,243
Liabilities
Current maturities of long-term debt (Note 10)	62	281
Accounts payable	259	233
Accrued liabilities (Note 9)	702	692
Total current liabilities	1,023	1,206
Long-term debt (Note 10)	5,933	6,329
Long-term debt (nonrecourse to the company) held by variable interest entities	511	511
Deferred pension and other postretirement benefits (Note 8)	1,201	1,322
Deposit from contribution of timberlands to related party (Note 7)	416	426
Other liabilities	273	269
Total liabilities	9,357	10,063
Commitments and contingencies (Note 12)
Equity:
Common shares: $1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 753,050,533 and 748,528,131 shares	941	936
Other capital	8,391	8,282
Retained earnings	1,050	1,421
Cumulative other comprehensive loss (Note 13)	(1,337)	(1,459)
Total equity	9,045	9,180
Total liabilities and equity	$ 18,402	$ 19,243

XML

CONSOLIDATED BALANCE SHEET (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Receivables, allowances	$ 1	$ 1
Property and equipment, accumulated depreciation	$ 3,393	$ 3,306
Common shares, par value	$ 1.25	$ 1.25
Common shares, authorized	1,360,000,000	1,360,000,000
Common shares, issued	753,050,533	748,528,131
Common shares, outstanding	753,050,533	748,528,131

XML

CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operations:
Net earnings	$ 311	$ 476
Noncash charges (credits) to earnings:
Depreciation, depletion and amortization	394	428
Basis of real estate sold	48	49
Deferred income taxes, net	9	96
Pension and other postretirement benefits (Note 8)	72	5
Share-based compensation expense	29	53
Charges for impairment of assets	153	23
Equity (earnings) loss from joint ventures (Note 7)	(1)	(18)
Net gains on disposition of assets and operations	(15)	(121)
Foreign exchange transaction (gains) losses (Note 17)	0	(11)
Change in:
Receivables less allowances	(113)	(96)
Receivable/payable for taxes	(116)	37
Inventories	4	49
Prepaid expenses	(9)	(3)
Accounts payable and accrued liabilities	184	61
Pension and postretirement contributions (Note 8)	(59)	(83)
Distributions of earnings received from joint ventures (Note 7)	1	5
Other	(45)	(64)
Net cash from operations	847	886
Cash flows from investing activities:
Capital expenditures for property and equipment	(213)	(260)
Capital expenditures for timberlands reforestation	(46)	(43)
Acquisition of timberlands	0	(10)
Proceeds from sale of assets and operations	423	379
Proceeds from contribution of timberlands to related party	0	440
Distributions of investment received from joint ventures (Note 7)	23	34
Cash and cash equivalents acquired in Plum Creek merger (Note 4)	0	9
Other	5	42
Cash from investing activities	192	591
Cash flows from financing activities:
Cash dividends on common shares	(699)	(700)
Cash dividends on preference shares	0	(22)
Proceeds from issuance of long-term debt (Note 10)	225	1,698
Proceeds from borrowing on line of credit (Note 10)	100	0
Payments of long-term debt (Note 10)	(831)	(723)
Payments of line of credit (Note 10)	(100)	0
Repurchase of common stock	0	(2,003)
Proceeds from exercise of stock options	89	48
Other	(2)	(8)
Cash used in financing activities	(1,218)	(1,710)
Net change in cash and cash equivalents	(179)	(233)
Cash and cash equivalents from continuing operations at beginning of period	676	1,011
Cash and cash equivalents from discontinued operations at beginning of period	0	1
Cash and cash equivalents at beginning of period		1,012
Cash and cash equivalents from continuing operations at end of period	497	769
Cash and cash equivalents from discontinued operations at end of period	0	10
Cash and cash equivalents at end of period		779
Cash paid (received) during the period for:
Interest, net of amount capitalized of $6 and $5	315	367
Income taxes	$ 129	$ (26)

XML

CONSOLIDATED STATEMENT OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Interest, amount capitalized	$ 6	$ 5

XML

BASIS OF PRESENTATION

9 Months Ended

Sep. 30, 2017

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. As a REIT, we generally are not subject to federal corporate level income taxes on REIT taxable income that is distributed to shareholders. We are required to pay corporate income taxes on earnings of our taxable REIT subsidiaries (TRSs), which includes our Wood Products segment and portions of our Timberlands and Real Estate, Energy and Natural Resources (Real Estate & ENR) segments.

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.

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,” “the company” 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 information and footnote disclosures normally included in our annual Consolidated Financial Statements have been condensed or omitted. These quarterly 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, 2016. Results of operations for interim periods should not necessarily be regarded as 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 2017 reporting. This makes year-to-year comparisons easier. Our reclassifications had no effect on consolidated net earnings or equity. Our reclassifications present the adoption of new accounting pronouncements on our Consolidated Statement of Operations and in the related footnotes. Refer to discussion of new accounting pronouncements below.

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. In August 2015, FASB issued ASU 2015-14, which deferred the effective date for an additional year. In March 2016, FASB issued ASU 2016-08, which does not change the core principle of the guidance; however, it does clarify the implementation guidance on principal versus agent considerations. In April 2016, FASB issued ASU 2016-10, which clarifies two aspects of ASU 2014-09: identifying performance obligations and the licensing implementation guidance. In May 2016, FASB issued ASU 2016-12, which amends ASU 2014-09 to provide improvements and practical expedients to the new revenue recognition model. In December 2016, the FASB issued ASU 2016-20, which amends ASU 2014-09 for technical corrections and to correct for unintended application of the guidance. In February 2017, FASB issued ASU 2017-05, which clarifies the scope of ASC 610-20 and impacts accounting for partial sales of nonfinancial assets.

The company expects to adopt and implement the new revenue recognition guidance effective January 1, 2018. The new standard is required to be applied retrospectively to each prior reporting period presented (full retrospective transition method) or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application (cumulative effect method). We expect to adopt using the cumulative effect method. We expect that the adoption of the new revenue recognition guidance will not materially impact our operating results, balance sheet, or cash flows. We expect an impact to our financial reporting from adding expanded disclosures.

In July 2015, FASB issued ASU 2015-11, which simplifies the measurement of inventories valued under most methods, including our inventories valued under FIFO – the first-in, first-out – and moving average cost methods. Inventories valued under LIFO – the last-in, first-out method – are excluded. Under this new guidance, inventories valued under these methods would be valued at the lower of cost or net realizable value, with net realizable value defined as the estimated selling price less reasonable costs to sell the inventory. We adopted ASU 2015-11 on January 1, 2017, and determined this pronouncement does not have a material impact on our consolidated financial statements and related disclosures.

In February 2016, FASB issued ASU 2016-02, which requires lessees to recognize assets and liabilities for the rights and obligations created by those leases and requires both capital and operating leases to be recognized on the balance sheet. The new guidance is effective for fiscal years beginning after December 15, 2018, and early adoption is permitted. We expect to adopt ASU 2016-02 on January 1, 2019, and are evaluating the impact on our consolidated financial statements and related disclosures.

In October 2016, FASB issued ASU 2016-16, which requires immediate recognition of the income tax consequences upon intra-entity transfers of assets other than inventory. The new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. We adopted this accounting standard on January 1, 2017. As a result of this adoption, our opening balance sheet was adjusted through "Retained earnings" to include a deferred tax asset of $22 million for prior period intra-entity transfers. Adoption of this standard did not have a material impact on our Consolidated Statement of Cash Flows or Consolidated Statement of Operations.

In March 2017, FASB issued ASU 2017-07, which requires that an employer report the service cost component of pension and other postretirement benefit costs in the Consolidated Statement of Operations in the same line item or items as other compensation costs arising from services rendered by the pertinent employees. This requirement is consistent with how we have historically presented our pension service costs. The other requirement of ASU 2017-07 is to present the remaining components of pension and other postretirement benefit costs (i.e., interest, expected return on plan assets, amortization of actuarial gains or losses, and amortization of prior service credits or costs) in the Consolidated Statement of Operations separately from the service cost component and outside a subtotal of income from operations. The new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. We adopted this accounting standard as of January 1, 2017. As a result, we reclassified amounts related to other components of pension and other post retirement benefit costs from their prior financial statements captions ("Costs of products sold," "General and administrative expenses," and "Other operating costs (income), net") into a new financial statement caption titled "Non-operating pension and other postretirement benefit (costs) credits" in our Consolidated Statement of Operations. The adoption of ASU 2017-07 did not impact "Net earnings," nor did it impact our Consolidated Balance Sheet.

XML

BUSINESS SEGMENTS

9 Months Ended

Sep. 30, 2017

BUSINESS SEGMENTS

BUSINESS SEGMENTS

Reportable business segments are determined based on the company’s "management approach," as defined by FASB ASC 280, “Segment Reporting.” The management approach is based on the way the chief operating decision maker organizes the segments within a company for making decisions about resources to be allocated and assessing their performance.

We are principally engaged in growing and harvesting timber; manufacturing, distributing, and selling products made from trees; maximizing the value of every acre we own through the sale of higher and better use (HBU) properties; and monetizing reserves of minerals, oil, gas, coal, and other natural resources on our timberlands. The following is a brief description of each of our reportable business segments and activities:

• Timberlands – which includes logs, timber and leased recreational access;

• Real Estate & ENR – which includes sales of timberlands; rights to explore for and extract hard minerals, oil and gas production and coal; and equity interests in our Real Estate Development Ventures (as defined and described in Note 7: Related Parties); and

• Wood Products – which includes softwood lumber, engineered wood products, structural panels, medium density fiberboard and building materials distribution.

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

	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Sales to unaffiliated customers:
Timberlands	$	491		$	484		$	1,446		$	1,342
Real Estate & ENR	82			48			181			125
Wood Products	1,299			1,177			3,746			3,302
	1,872			1,709			5,373			4,769
Intersegment sales:
Timberlands	179			216			544			631
Wood Products	—			17			—			61
	179			233			544			692
Total sales	2,051			1,942			5,917			5,461
Intersegment eliminations	(179		)	(233		)	(544		)	(692		)
Total	$	1,872		$	1,709		$	5,373		$	4,769
Net contribution to earnings:
Timberlands (1)	$	131		$	122		$	267		$	376
Real Estate & ENR(2)	47			15			96			42
Wood Products (3)	40			170			389			413
	218			307			752			831
Unallocated items(4)	(17		)	(9		)	(113		)	(91		)
Net contribution to earnings	201			298			639			740
Interest expense, net of capitalized interest	(98		)	(114		)	(297		)	(323		)
Earnings from continuing operations before income taxes	103			184			342			417
Income taxes	27			(22		)	(31		)	(64		)
Earnings from continuing operations	130			162			311			353
Earnings from discontinued operations, net of income taxes (5)	—			65			—			123
Net earnings	130			227			311			476
Dividends on preference shares	—			—			—			(22		)
Net earnings attributable to Weyerhaeuser common shareholders	$	130		$	227		$	311		$	454

(1) Net contribution to earnings for the Timberlands segment includes a noncash pretax impairment charge of $147 million, recorded during second quarter 2017. This impairment was a result of our agreement to sell our Uruguayan operations, which was announced in June 2017 and completed on September 1, 2017. Refer to Note 3: Discontinued Operations and Other Divestituresfor more information regarding this transaction.

(2) The Real Estate & ENR segment includes the equity earnings from, investments in and advances to our Real Estate Development Ventures (as defined and described in Note 7: Related Parties), which are accounted for under the equity method.

(3) Net contribution to earnings for the Wood Products segment includes pretax charges of $190 million and $240 million incurred in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for estimated costs to remediate an issue with certain I-joists coated with our Flak Jacket® Protection product. Refer to Note 16: Charges for Product Remediation for additional details.

(4) 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. Additionally, amounts shown for 2016 include equity earnings from our former Timberland Venture. As of August 31, 2016, the Timberland Venture became a fully consolidated, wholly-owned subsidiary and therefore eliminated our equity method investment at that time.

(5) Discontinued operations as presented herein consist of the operations of our former Cellulose Fibers segment. Refer to Note 3: Discontinued Operations and Other Divestituresfor more information regarding our discontinued operations.

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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES DISCONTINUED OPERATIONS AND OTHER DIVESTITURES

9 Months Ended

Sep. 30, 2017

DISCONTINUED OPERATIONS AND OTHER DIVESTITURES

DISCONTINUED OPERATIONS AND OTHER DIVESTITURES

OPERATIONS DIVESTED

On October 12, 2016, we announced the exploration of strategic alternatives for our Uruguay timberlands and manufacturing operations, which was part of our Timberlands business segment. On June 2, 2017, the Weyerhaeuser Board of Directors approved an equity purchase agreement with a consortium led by BTG Pactual's Timberland Investment Group (TIG), including other long-term investors, pursuant to which the Company agreed to sell, in exchange for $403 million in cash, all of its equity interest in the subsidiaries that collectively owned and operated its Uruguayan timberlands and manufacturing operations.

On September 1, 2017, we completed the sale of our Uruguay timberlands and manufacturing operations for approximately $403 million of cash proceeds. Due to the impairment of our Uruguayan operations recorded during second quarter 2017 (refer to Note 15: Charges for Integration and Restructuring, Closures and Asset Impairments), no material gain or loss was recorded as a result of this sale. As of September 30, 2017, no assets or liabilities related to our Uruguayan operations remain on the Consolidated Balance Sheet.

The sale of our Uruguayan operations was not considered a strategic shift that had or will have a major effect on our operations or financial results, and therefore did not meet the requirements for presentation as discontinued operations.

DISCONTINUED OPERATIONS

During 2016, we entered into three separate transactions to sell our Cellulose Fibers business. As a result of these transactions, the company recognized a pretax gain on disposition of $789 million and total cash proceeds of $2.5 billion in the second half of 2016. These transactions consisted of:

• sale of our Cellulose Fibers liquid packaging board business to Nippon Paper Industries Co., Ltd, which closed on August 31, 2016;

• sale of our Cellulose Fibers printing papers joint venture to One Rock Capital Partners, LLC, which closed on November 1, 2016; and

• sale of our Cellulose Fibers pulp business to International Paper, which closed on December 1, 2016.

The results of operations for our pulp and liquid packaging board businesses, along with our interest in our printing papers joint venture, were reclassified to discontinued operations during our 2016 reporting year. These results have been summarized in "Earnings from discontinued operations, net of income taxes" on our Consolidated Statement of Operations for each period presented. We did not reclassify our Consolidated Statement of Cash Flows to reflect discontinued operations.

The following table presents net earnings from discontinued operations. As all discontinued operations were sold in 2016, no assets or liabilities remain as of September 30, 2017, or December 31, 2016.

	QUARTER ENDED			YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016			SEPTEMBER 2016
Total net sales	$	420		$	1,306
Costs of products sold	350			1,110
Gross margin	70			196
Selling expenses	3			10
General and administrative expenses	7			24
Research and development expenses	—			3
Charges for integration and restructuring, closures and asset impairments(1)	13			44
Other operating income, net	(2		)	(21		)
Operating income	49			136
Equity loss from joint venture	—			(3		)
Interest expense, net of capitalized interest	(2		)	(5		)
Earnings from discontinued operations before income taxes	47			128
Income taxes	(23		)	(46		)
Net earnings from operations	24			82
Net gain on divestiture of Liquid Packaging Board	41			41
Net earnings from discontinued operations	$	65		$	123

(1) Charges relate to our strategic evaluation of the Cellulose Fibers businesses and transaction-related costs.

Cash flows from discontinued operations for the three and nine months ended September 30, 2016, are as follows:

	QUARTER ENDED		YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016		SEPTEMBER 2016
Net cash provided by operating activities	$	58	$	192
Net cash provided by investing activities	$	259	$	225

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MERGER WITH PLUM CREEK MERGER WITH PLUM CREEK

9 Months Ended

Sep. 30, 2017

MERGER WITH PLUM CREEK

MERGER WITH PLUM CREEK

On February 19, 2016, we merged with Plum Creek Timber Company, Inc. (Plum Creek). Plum Creek was a REIT that primarily owned and managed timberlands in the United States. Plum Creek also produced wood products, developed opportunities for mineral and other natural resource extraction, and sold real estate properties.

The acquisition of total assets of $10.0 billion was a noncash investing and financing activity comprised of $6.4 billion in equity consideration transferred and $3.6 billion of liabilities assumed.

Summarized unaudited pro forma information that presents combined amounts as if this merger occurred at the beginning of 2016 is as follows:

	QUARTER ENDED		YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	SEPTEMBER 2016		SEPTEMBER 2016
Net sales	$	1,709	$	4,925
Net earnings from continuing operations attributable to Weyerhaeuser common shareholders	$	172	$	438
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, basic and diluted	$	0.23	$	0.58

Pro forma "Net earnings from continuing operations attributable to Weyerhaeuser common shareholders" excludes $10 million and $144 million of non-recurring merger-related costs (net of tax) incurred in the quarter and year-to-date ended September 30, 2016, respectively. Pro forma data may not be indicative of the results that would have been obtained had these events occurred at the beginning of the periods presented, nor is it intended to be a projection of future results.

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NET EARNINGS PER SHARE

9 Months Ended

Sep. 30, 2017

NET EARNINGS PER SHARE

NET EARNINGS PER SHARE

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

• $0.17 during third quarter 2017 and $0.41 during year-to-date 2017; and

• $0.30 during third quarter 2016 and $0.64 during year-to-date 2016.

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:

	QUARTER ENDED		YEAR-TO-DATE ENDED
SHARES IN THOUSANDS	SEPTEMBER 2017	SEPTEMBER 2016	SEPTEMBER 2017	SEPTEMBER 2016
Weighted average number of outstanding common shares – basic	753,535	749,587	752,301	708,395
Dilutive potential common shares:
Stock options	2,437	3,185	2,754	2,660
Restricted stock units	551	814	529	723
Performance share units	380	458	474	427
Total effect of outstanding dilutive potential common shares	3,368	4,457	3,757	3,810
Weighted average number of outstanding common shares – dilutive	756,903	754,044	756,058	712,205

We use the treasury stock method to calculate the dilutive 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.

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

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.

	QUARTER ENDED		YEAR-TO-DATE ENDED
SHARES IN THOUSANDS	SEPTEMBER 2017	SEPTEMBER 2016	SEPTEMBER 2017	SEPTEMBER 2016
Stock options	1,381	1,835	1,381	1,835
Performance share units	556	361	556	361

Mandatory Convertible Preference Shares

We issued 13.8 million6.375 percent Mandatory Convertible Preference Shares, Series A on June 24, 2013, the majority of which remained outstanding through June 30, 2016. On July 1, 2016, all outstanding 6.375 percent Mandatory Convertible Preference Shares, Series A (Preference Shares) converted into Weyerhaeuser common shares at a rate of 1.6929 Weyerhaeuser common shares per Preference Share. There were no preference shares outstanding as of December 31, 2016, or September 30, 2017.

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INVENTORIES

9 Months Ended

Sep. 30, 2017

INVENTORIES

INVENTORIES

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

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017		DECEMBER 31, 2016
LIFO Inventories:
Logs	$	5	$	18
Lumber, plywood and panels	44		51
Medium density fiberboard	11		10
Other products	14		10
FIFO or moving average cost inventories:
Logs	19		21
Lumber, plywood, panels and engineered wood products	81		71
Other products	81		92
Materials and supplies	85		85
Total	$	340	$	358

LIFO – the last-in, first-out method – applies to major inventory products held at our U.S. domestic locations. The FIFO – the first-in, first-out method – or moving average cost methods apply 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 LIFO inventories, our stated inventories would have been higher by $70 million as of September 30, 2017, and $71 millionas of December 31, 2016.

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RELATED PARTIES RELATED PARTIES

9 Months Ended

Sep. 30, 2017

RELATED PARTIES

RELATED PARTIES

This note provides details about our transactions with related parties. Our related parties consist of:

• our Real Estate Development Ventures (as defined below), which are accounted for using the equity method and

• our Twin Creeks Venture.

Real Estate Development Ventures

WestRock-Charleston Land Partners, LLC (WR-CLP) is a limited liability company which holds residential and commercial real estate development properties, currently under development (Class A Properties) and higher-value timber and development lands (Class B Properties) (Class A Properties and Class B Properties referred to collectively as the Real Estate Development Ventures). Our share of the equity earnings of WR-CLP is included in the net contribution to earnings of our Real Estate & ENR segment.

The carrying amount of our investment in WR-CLP is $33 million at September 30, 2017, and $56 million at December 31, 2016. The change in our investment in WR-CLP during 2017 is due to a $23 million cash return of investment received during 2017. Additionally, we had $1 million of equity earnings from the joint ventures during third quarter and year-to-date 2017. These equity earnings were distributed during third quarter 2017. We record our share of net earnings within "Equity earnings from joint ventures" in our Consolidated Statement of Operationsin the period which earnings are recorded by the affiliates.

Twin Creeks Venture

On April 1, 2016, we contributed approximately 260,000 acres of our southern timberlands with an agreed-upon value of approximately $560 million to Twin Creeks Timber, LLC (Twin Creeks Venture), in exchange for cash of approximately $440 million and a 21 percent ownership interest.

In conjunction with contributing to the venture, we entered into separate agreements to manage the timberlands owned by the Twin Creeks Venture, including harvesting activities, marketing and log sales activities, and replanting and silviculture activities. These management agreements guaranteed the Twin Creeks Venture an annual return equal to 3 percent of the contributed value of the managed timberlands in the form of minimum quarterly payments from Weyerhaeuser. We were also required to annually distribute 75 percent of any profits earned by us in excess of the minimum quarterly payments. The management agreement was cancellable at any time by Twin Creeks Timber, LLC, or otherwise would expire on April 1, 2019.

Subsequent to the quarter ended September 30, 2017, but prior to the issuance of these financial statements, we announced the redemption of our 21 percent ownership interest in the Twin Creeks Venture for $108 million in cash. We do not expect to recognize a material gain or loss on the redemption of our ownership interest. Effective December 31, 2017, we will also terminate the agreements under which we have managed the Twin Creeks timberlands. Following termination of these agreements, Weyerhaeuser will have no further responsibilities or obligations related to Twin Creeks. In conjunction with the redemption and termination discussed above, we have also entered into an agreement to sell 100,000 acres of our timberlands to Twin Creeks for $203 million. The sale, which will include 80,000 acres of timberlands in Mississippi and 20,000 acres in Georgia, is expected to close by the end of fourth quarter 2017.

Changes in our "Deposit from contribution of timberlands to related party" balance during 2017 were as follows:

DOLLAR AMOUNTS IN MILLIONS
Balance as of December 31, 2016	$	426
Lease payments to Twin Creeks Venture	(13		)
Distributions from Twin Creeks Venture	3
Balance at September 30, 2017	$	416

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

9 Months Ended

Sep. 30, 2017

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

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

	PENSION
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Service cost(1)	$	9		$	13		$	26		$	37
Interest cost	66			70			198			207
Expected return on plan assets	(101		)	(125		)	(306		)	(371		)
Amortization of actuarial loss	48			39			145			117
Amortization of prior service cost	1			1			3			3
Accelerated pension costs included in Plum Creek merger-related costs (Note 15)	—			—			—			5
Total net periodic benefit cost (credit) - pension	$	23		$	(2	)	$	66		$	(2	)

(1) Service cost includes $3 million and $10 million for the quarter and year-to-date ended September 30, 2016, respectively, for employees that were part of our Cellulose Fibers divestitures. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Interest cost	$	2		$	2		$	6		$	7
Amortization of actuarial loss	2			2			6			6
Amortization of prior service credit	(2		)	(2		)	(6		)	(6		)
Total net periodic benefit cost - other postretirement benefits	$	2		$	2		$	6		$	7

On January 1, 2017, we adopted ASU 2017-07, which affects where components of pension and other postretirement costs are presented on the Consolidated Statement of Operations. Refer to Note 1: Basis of Presentation for further information.

FAIR VALUE OF PENSION PLAN ASSETS AND OBLIGATION

We estimate the fair value of pension plan assets based upon the information available during the year-end reporting process. In some cases, primarily private equity funds, the information available consists of net asset values as of an interim date, cash flows between the interim date and the end of the year and market events. We update the year-end estimated fair value of pension plan assets to incorporate year-end net asset values reflected in financial statements received after we have filed our Annual Report on Form 10-K. During second quarter 2017, we recorded an increase in the fair value of the pension assets of $17 million, or less than 1 percent. We also updated our census data that is used to estimate our projected benefit obligation for our pension plans. As a result of that update, during second quarter 2017, we recorded a decrease to the projected benefit obligation of $10 million, or less than 1 percent. The net effect was a $27 million improvement in the funded status compared to December 31, 2016.

EXPECTED CONTRIBUTIONS AND BENEFIT PAYMENTS

In 2017 we expect to:

• be required to contribute approximately $23 million for our Canadian registered plan;

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

• make benefit payments of $26 million for our U.S. nonqualified pension plans; and

• make benefit payments of $21 million for our U.S. and Canadian other postretirement plans.

We do not anticipate making a contribution to our U.S. qualified pension plans in 2017.

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ACCRUED LIABILITIES

9 Months Ended

Sep. 30, 2017

ACCRUED LIABILITIES

ACCRUED LIABILITIES

Accrued liabilities were comprised of the following:

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017		DECEMBER 31, 2016
Wages, salaries and severance pay	$	132	$	178
Pension and other postretirement benefits	48		49
Vacation pay	35		33
Taxes – Social Security and real and personal property	38		20
Interest	85		120
Customer rebates and volume discounts	46		39
Deferred income	60		40
Accrued income taxes	4		139
Product remediation accrual(Note 16)	179		—
Other	75		74
Total	$	702	$	692

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LONG-TERM DEBT AND LINES OF CREDIT LONG-TERM DEBT AND LINES OF CREDIT

9 Months Ended

Sep. 30, 2017

LONG-TERM DEBT AND LINES OF CREDIT

LONG-TERM DEBT AND LINES OF CREDIT

During March 2017, we entered into a new $1.5 billion five-year senior unsecured revolving credit facility that expires in March 2022. This replaced a $1 billion senior unsecured revolving credit facility that was set to expire September 2018. The entire amount is available to Weyerhaeuser Company. Borrowings are at LIBOR plus a spread or at other interest rates mutually agreed upon between the borrower and the lending banks. As of September 30, 2017, there were no borrowings outstanding.

During July 2017, we prepaid a $550 million variable-rate term loan originally set to mature in 2020 (2020 term loan). The 2020 term loan was prepaid using available cash of $325 million as well as borrowing proceeds from a new $225 million variable-rate term loan set to mature in 2026 (2026 term loan).

During August 2017, we paid our $281 million 6.95% debentures, originally set to mature in August 2017.

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FAIR VALUE OF FINANCIAL INSTRUMENTS

9 Months Ended

Sep. 30, 2017

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:

	SEPTEMBER 30, 2017				DECEMBER 31, 2016
DOLLAR AMOUNTS IN MILLIONS	CARRYING  VALUE		FAIR VALUE (LEVEL 2)		CARRYING  VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities):
Fixed rate	$	5,771	$	6,872	$	6,061	$	6,925
Variable rate	224		225		549		550
Total Debt	$	5,995	$	7,097	$	6,610	$	7,475

To estimate the fair value of fixed rate 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.

We believe that our variable rate long-term debt instruments have net carrying values that approximate their fair values with only insignificant differences.

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, mutual fund investments held in grantor trusts, 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 and the allowance for doubtful accounts.

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LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

9 Months Ended

Sep. 30, 2017

LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES

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. See Note 18: Income Taxes for a discussion of a tax proceeding involving Plum Creek's 2008 U.S. federal income tax return.

ENVIRONMENTAL MATTERS

Site Remediation

Under the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA) – 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.

We have received notification from the Environmental Protection Agency (the EPA) and have acknowledged that we are a potentially responsible party in a portion of the Kalamazoo River Superfund site in southwest Michigan. Our involvement in the remediation site is based on our former ownership of the Plainwell, Michigan mill located within the remediation site. Several other companies also operated upstream pulp mills within the remediation site. We are currently cooperating with the other parties to jointly implement an administrative order issued by the EPA on April 14, 2016, with respect to a portion of the site comprising a stretch of the river approximately 1.7 miles long referred to as the Otsego Township Dam Area. We do not expect to incur material losses related to the implementation of this administrative order; however, we may incur additional costs, as yet not specified, in connection with remediation tasks resulting from other areas of the site. The company, along with others, was named as a defendant by Georgia-Pacific Consumer Products LP, Fort James Corporation and Georgia-Pacific LLC in an action seeking contribution under CERCLA for remediation costs relating to the site. The trial has been concluded but a decision on cost contribution and allocation has not yet been rendered by the Court.

As of September 30, 2017, our total accrual for future estimated remediation costs on the active Superfund sites and other sites for which we are responsible was approximately $46 million. These reserves are recorded in "Accrued liabilities" (current) and "Other liabilities" (noncurrent) on our Consolidated Balance Sheet.

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 September 30, 2017, our accrued balance for these obligations was $30 million. These obligations are recorded in "Accrued liabilities" (current) and "Other liabilities" (noncurrent) on our Consolidated Balance Sheet. The accruals have not changed materially since the end of 2016.

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.

PRODUCT REMEDIATION CONTINGENCY

In July 2017, the company announced it was implementing a solution to address concerns regarding our TJI® Joists with Flak Jacket® Protection product. The company has determined that an odor in certain newly constructed homes is related to a recent formula change to the Flak Jacket coating that included a formaldehyde-based resin. This issue is isolated to Flak Jacket product manufactured after December 1, 2016, and does not affect any of the company’s other products. We recorded a pretax charge of $190 million and $240 million in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for remediation costs. Refer to Note 16: Charges for Product Remediation for further information.

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CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS)

9 Months Ended

Sep. 30, 2017

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, 2016	$	232	$	(1,651	)	$	(9	)	$	(67	)	$	29		$	7	$	(1,459	)
Other comprehensive income (loss) before reclassifications	35		1			(3		)	—			—			2		35
Income taxes	—		(10		)	1			—			—			—		(9		)
Net other comprehensive income (loss) before reclassifications	35		(9		)	(2		)	—			—			2		26
Amounts reclassified from cumulative other comprehensive income (loss)(1)	—		145			3			6			(6		)	—		148
Income taxes	—		(49		)	(1		)	(3		)	1			—		(52		)
Net amounts reclassified from cumulative other comprehensive income (loss)	—		96			2			3			(5		)	—		96
Total other comprehensive income (loss)	35		87			—			3			(5		)	2		122
Ending balance as of September 30, 2017	$	267	$	(1,564	)	$	(9	)	$	(64	)	$	24		$	9	$	(1,337	)

(1) Actuarial losses and prior service credits (cost) are components of net periodic benefit costs (credits). See Note 8: Pension and Other Postretirement Benefit Plans.

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SHARE-BASED COMPENSATION

9 Months Ended

Sep. 30, 2017

SHARE-BASED COMPENSATION

SHARE-BASED COMPENSATION

Share-based compensation activity during year-to-date 2017 included the following:

SHARES IN THOUSANDS	Granted	Vested
Restricted Stock Units (RSUs)	763	710
Performance Share Units (PSUs)	348	160

A total of 4.5 million shares of common stock were issued as a result of RSU vesting, PSU vesting and stock option exercises.

RESTRICTED STOCK UNITS

The weighted average fair value of the RSUs granted in 2017 was $32.79. The vesting provisions for RSUs granted in 2017 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 entirely 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 PSUs granted in 2017 was $37.93.

The final number of shares granted in 2017 will range from 0 percent to 150 percent of each grant's target, depending upon actual company performance.

The ultimate number of PSUs 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 PSUs granted in 2017 were as follows:

• vest 100 percent on the third anniversary of the grant date if 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 entirely 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 2017

	Performance Share Units
Performance period	1/1/2017 - 12/31/2019
Valuation date average stock price (1)	$	32.79
Expected dividends	3.74					%
Risk-free rate	0.68		%	–	1.55	%
Expected volatility	22.71		%	–	24.07	%

(1) Calculated as an average of the high and low prices on grant date.

STOCK OPTIONS AND STOCK APPRECIATION RIGHTS

We granted no stock options or stock appreciation rights during 2017, nor do we expect to make any such grants during the remainder of 2017.

VALUE MANAGEMENT AWARDS

Value Management Awards (VMAs) are relative performance equity incentive awards granted to certain former employees of Plum Creek and assumed by the company in connection with the Plum Creek merger. In accordance with the terms of the merger, all VMAs outstanding on December 31, 2017, will vest at “target” level performance of $100 per unit and will be paid in the first quarter of 2018. The VMAs are classified and accounted for as liabilities, as they will be settled in cash upon vesting. The expense recognized over the remaining performance period will equal the cash value of an award as of the last day of the performance period multiplied by the number of awards that are earned. Expense for VMAs will continue to be recognized over the remaining service period unless a qualifying termination occurs. A qualifying termination of any holder of a VMA award before December 31, 2017, will accelerate vesting and expense recognition in the period that the qualifying termination occurs.

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CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

9 Months Ended

Sep. 30, 2017

Restructuring Cost and Reserve [Line Items]

CHARGES FOR RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS

	QUARTER ENDED				YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016		SEPTEMBER 2017		SEPTEMBER 2016
Integration and restructuring charges related to our merger with Plum Creek:
Termination benefits	$	—	$	4	$	6	$	52
Acceleration of share-based compensation and pension related benefits related to qualifying terminations	—		—		—		26
Professional services	5		6		10		45
Other integration and restructuring costs	1		4		4		9
Total integration and restructuring charges related to our merger with Plum Creek	6		14		20		132
Charges related to closures and other restructuring activities:
Termination benefits	—		1		2		4
Other closures and restructuring costs	2		1		3		3
Total charges related to closures and other restructuring activities	2		2		5		7
Impairments of long-lived assets	6		—		153		2
Total charges for integration and restructuring, closures and impairments	$	14	$	16	$	178	$	141

INTEGRATION, RESTRUCTURING AND CLOSURES

During 2017, we incurred and accrued for termination benefits (primarily severance) and non-recurring professional services costs directly attributable to our merger with Plum Creek.

During 2016, we incurred and accrued for termination benefits (primarily severance), accelerated share-based payment costs, and accelerated pension benefits based upon qualifying terminations of certain employees as a result of restructuring decisions made subsequent to the merger. We also incurred non-recurring professional services costs for investment banking, legal and consulting, and certain other fees directly attributable to our merger with Plum Creek.

Changes in accrued severance related to restructuring during the year-to-date period ended September 30, 2017, were as follows:

DOLLAR AMOUNTS IN MILLIONS
Accrued severance as of December 31, 2016	$	26
Charges	8
Payments	(20		)
Accrued severance as of September 30, 2017	$	14

Accrued severance is recorded within the "Wages, salaries and severance pay" component of "Accrued liabilities" on our Consolidated Balance Sheet as detailed in Note 9: Accrued Liabilities. The majority of the accrued severance balance as of September 30, 2017, is expected to be paid within one year.

IMPAIRMENTS OF LONG-LIVED ASSETS

In second quarter 2017, we recognized an impairment charge to the timberlands and manufacturing assets of our Uruguayan operations. On June 2, 2017, our Board of Directors approved an agreement to sell all of the Company's equity in the Uruguayan operations to a consortium led by BTG Pactual's Timberland Investment Group (TIG.) As a result of this agreement, the related assets met the criteria to be classified as held for sale at June 30, 2017. This designation required us to record the related assets at fair value, less an amount of estimated selling costs, and thus recognize a $147 million noncash pretax impairment charge. This amount was recorded in the Timberlands segment. The fair value of the related assets was primarily based on the agreed upon cash purchase price of $403 million. On September 1, 2017, we announced the completion of the sale. Refer to Note 3: Discontinued Operations and Other Divestituresfor further details of the Uruguayan operations sale.

Additionally, in September 2017, we recognized an impairment charge of $6 million related to a non-strategic asset in our Wood Products segment. The fair value of the asset was determined using a contract value associated with a pending asset sale.

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CHARGES FOR PRODUCT REMEDIATION (Notes)

9 Months Ended

Sep. 30, 2017

CHARGES FOR PRODUCT REMEDIATION

CHARGES FOR PRODUCT REMEDIATION

In July 2017, the company announced it was implementing a solution to address concerns regarding our TJI® Joists with Flak Jacket® Protection product. The company has determined that an odor in certain newly constructed homes is related to a recent formula change to the Flak Jacket coating that included a formaldehyde-based resin. This issue is isolated to Flak Jacket product manufactured after December 1, 2016, and does not affect any of the company’s other products. The company also announced it will cover the cost to either remediate or replace affected joists. The company estimates that approximately 2,400homes are affected.

The company recorded a liability of $50 million in second quarter 2017 based on the preliminary information that was available at that time. As remediation work has progressed, the company has obtained additional information and experience about the scope of the required remediation efforts and associated costs. Accordingly, we have adjusted our liability to account for the higher than originally expected cost per home for remediation, a modest increase in the estimated number of homes affected, as well as additional homebuilder and homeowner reimbursements. We recorded pretax charges of $190 million and $240 million in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for expected costs associated with the remediation. The charges are attributable to our Wood Products segment and were recorded in "Charges for product remediation," on the Consolidated Statement of Operations. As of September 30, 2017, $61 million has been paid out in relation to our remediation efforts. The remaining accrual of $179 million is recorded in "Accrued liabilities" on the Consolidated Balance Sheet. The company ultimately expects a significant portion of the total expense will be covered by insurance, however, as of the date of these financial statements no amounts related to potential recoveries have been recorded.

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OTHER OPERATING COSTS (INCOME), NET

9 Months Ended

Sep. 30, 2017

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						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Gain on disposition of non-strategic assets (1)	$	(5	)	$	(8	)	$	(14	)	$	(54	)
Foreign exchange losses (gains), net (2)	(3		)	1			—			(11		)
Litigation expense, net	8			2			14			23
Other, net	(12		)	2			2			(14		)
Total other operating costs (income), net	$	(12	)	$	(3	)	$	2		$	(56	)

(1) Gain on disposition of non-strategic assets included a $36 million pretax gain recognized in the first quarter of 2016 on the sale of our Federal Way, Washington headquarters campus. The remaining gains on disposition of non-strategic assets includes sales such as redundant offices and nurseries.

(2) Foreign exchange losses (gains) result from changes in exchange rates, primarily related to our Canadian operations.

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INCOME TAXES

9 Months Ended

Sep. 30, 2017

INCOME TAXES

INCOME TAXES

As a REIT, we generally are not subject to federal corporate level income taxes on REIT taxable income that is distributed to shareholders. We are required to pay corporate income taxes on earnings of our wholly-owned TRSs, which includes our Wood Products segment and portions of our Timberlands and Real Estate & ENR segments' earnings.

The quarterly provision for income taxes is based on the current estimate of the annual effective tax rate. Our 2017 estimated annual effective tax rate for our TRSs is approximately 34 percent, which is lower than the U.S. domestic statutory federal tax rate primarily due to lower foreign tax rates applicable to foreign earnings.

ONGOING IRS MATTER

In connection with the merger with Plum Creek, we acquired equity interests in Southern Diversified Timber, LLC, a timberland joint venture (Timberland Venture) with an affiliate of Campbell Global LLC (TCG Member). On August 31, 2016, the Timberland Venture redeemed TCG Member's interest and became a fully consolidated, wholly-owned subsidiary of Weyerhaeuser. 

We received a Notice of Final Partnership Administrative Adjustment (FPAA), dated July 20, 2016, from the Internal Revenue Service (IRS) in regard to Plum Creek’s 2008 U.S. federal income tax treatment of the transaction forming the Timberland Venture. The IRS is asserting that the transfer of the timberlands to the Timberland Venture was a taxable transaction to Plum Creek at the time of the transfer rather than a nontaxable capital contribution. We have filed a petition in the U.S. Tax Court and will vigorously contest this adjustment.

In the event that we are unsuccessful in this tax litigation, we could be required to recognize and distribute gain to shareholders of approximately $600 million and pay built-in gains tax of approximately $100 million. We would also be required to pay interest on both of those amounts, which would be substantial. As much as 80 percent of any such gain distribution could be made with our common stock, and shareholders would be subject to tax on the distribution at the applicable capital gains tax rate. Alternatively, we could elect to retain the gain and pay corporate-level tax to minimize interest costs to the company.

Although the outcome of this process cannot be predicted with certainty, we are confident in our position based on U.S. tax law and believe we will be successful in defending it. Accordingly, no reserve has been recorded related to this matter.

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BASIS OF PRESENTATION (Policies)

9 Months Ended

Sep. 30, 2017

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.

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.

Reclassification, Policy

RECLASSIFICATIONS

We have reclassified certain balances and results from the prior year to be consistent with our 2017 reporting. This makes year-to-year comparisons easier. Our reclassifications had no effect on consolidated net earnings or equity. Our reclassifications present the adoption of new accounting pronouncements on our Consolidated Statement of Operations and in the related footnotes.

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. In August 2015, FASB issued ASU 2015-14, which deferred the effective date for an additional year. In March 2016, FASB issued ASU 2016-08, which does not change the core principle of the guidance; however, it does clarify the implementation guidance on principal versus agent considerations. In April 2016, FASB issued ASU 2016-10, which clarifies two aspects of ASU 2014-09: identifying performance obligations and the licensing implementation guidance. In May 2016, FASB issued ASU 2016-12, which amends ASU 2014-09 to provide improvements and practical expedients to the new revenue recognition model. In December 2016, the FASB issued ASU 2016-20, which amends ASU 2014-09 for technical corrections and to correct for unintended application of the guidance. In February 2017, FASB issued ASU 2017-05, which clarifies the scope of ASC 610-20 and impacts accounting for partial sales of nonfinancial assets.

The company expects to adopt and implement the new revenue recognition guidance effective January 1, 2018. The new standard is required to be applied retrospectively to each prior reporting period presented (full retrospective transition method) or retrospectively with the cumulative effect of initially applying it recognized at the date of initial application (cumulative effect method). We expect to adopt using the cumulative effect method. We expect that the adoption of the new revenue recognition guidance will not materially impact our operating results, balance sheet, or cash flows. We expect an impact to our financial reporting from adding expanded disclosures.

In July 2015, FASB issued ASU 2015-11, which simplifies the measurement of inventories valued under most methods, including our inventories valued under FIFO – the first-in, first-out – and moving average cost methods. Inventories valued under LIFO – the last-in, first-out method – are excluded. Under this new guidance, inventories valued under these methods would be valued at the lower of cost or net realizable value, with net realizable value defined as the estimated selling price less reasonable costs to sell the inventory. We adopted ASU 2015-11 on January 1, 2017, and determined this pronouncement does not have a material impact on our consolidated financial statements and related disclosures.

In February 2016, FASB issued ASU 2016-02, which requires lessees to recognize assets and liabilities for the rights and obligations created by those leases and requires both capital and operating leases to be recognized on the balance sheet. The new guidance is effective for fiscal years beginning after December 15, 2018, and early adoption is permitted. We expect to adopt ASU 2016-02 on January 1, 2019, and are evaluating the impact on our consolidated financial statements and related disclosures.

In October 2016, FASB issued ASU 2016-16, which requires immediate recognition of the income tax consequences upon intra-entity transfers of assets other than inventory. The new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. We adopted this accounting standard on January 1, 2017. As a result of this adoption, our opening balance sheet was adjusted through "Retained earnings" to include a deferred tax asset of $22 million for prior period intra-entity transfers. Adoption of this standard did not have a material impact on our Consolidated Statement of Cash Flows or Consolidated Statement of Operations.

In March 2017, FASB issued ASU 2017-07, which requires that an employer report the service cost component of pension and other postretirement benefit costs in the Consolidated Statement of Operations in the same line item or items as other compensation costs arising from services rendered by the pertinent employees. This requirement is consistent with how we have historically presented our pension service costs. The other requirement of ASU 2017-07 is to present the remaining components of pension and other postretirement benefit costs (i.e., interest, expected return on plan assets, amortization of actuarial gains or losses, and amortization of prior service credits or costs) in the Consolidated Statement of Operations separately from the service cost component and outside a subtotal of income from operations. The new guidance is effective for annual periods beginning after December 15, 2017, and early adoption is permitted. We adopted this accounting standard as of January 1, 2017. As a result, we reclassified amounts related to other components of pension and other post retirement benefit costs from their prior financial statements captions ("Costs of products sold," "General and administrative expenses," and "Other operating costs (income), net") into a new financial statement caption titled "Non-operating pension and other postretirement benefit (costs) credits" in our Consolidated Statement of Operations. The adoption of ASU 2017-07 did not impact "Net earnings," nor did it impact our Consolidated Balance Sheet.

Earnings Per Share, Policy

We use the treasury stock method to calculate the dilutive 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.

Fair Value of Financial Instruments, Policy

To estimate the fair value of fixed rate 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.

We believe that our variable rate long-term debt instruments have net carrying values that approximate their fair values with only insignificant differences.

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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BUSINESS SEGMENTS (Tables)

9 Months Ended

Sep. 30, 2017

Reconciliation of Revenue from Segments to Consolidated

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

	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Sales to unaffiliated customers:
Timberlands	$	491		$	484		$	1,446		$	1,342
Real Estate & ENR	82			48			181			125
Wood Products	1,299			1,177			3,746			3,302
	1,872			1,709			5,373			4,769
Intersegment sales:
Timberlands	179			216			544			631
Wood Products	—			17			—			61
	179			233			544			692
Total sales	2,051			1,942			5,917			5,461
Intersegment eliminations	(179		)	(233		)	(544		)	(692		)
Total	$	1,872		$	1,709		$	5,373		$	4,769
Net contribution to earnings:
Timberlands (1)	$	131		$	122		$	267		$	376
Real Estate & ENR(2)	47			15			96			42
Wood Products (3)	40			170			389			413
	218			307			752			831
Unallocated items(4)	(17		)	(9		)	(113		)	(91		)
Net contribution to earnings	201			298			639			740
Interest expense, net of capitalized interest	(98		)	(114		)	(297		)	(323		)
Earnings from continuing operations before income taxes	103			184			342			417
Income taxes	27			(22		)	(31		)	(64		)
Earnings from continuing operations	130			162			311			353
Earnings from discontinued operations, net of income taxes (5)	—			65			—			123
Net earnings	130			227			311			476
Dividends on preference shares	—			—			—			(22		)
Net earnings attributable to Weyerhaeuser common shareholders	$	130		$	227		$	311		$	454

(1) Net contribution to earnings for the Timberlands segment includes a noncash pretax impairment charge of $147 million, recorded during second quarter 2017. This impairment was a result of our agreement to sell our Uruguayan operations, which was announced in June 2017 and completed on September 1, 2017. Refer to Note 3: Discontinued Operations and Other Divestituresfor more information regarding this transaction.

(2) The Real Estate & ENR segment includes the equity earnings from, investments in and advances to our Real Estate Development Ventures (as defined and described in Note 7: Related Parties), which are accounted for under the equity method.

(3) Net contribution to earnings for the Wood Products segment includes pretax charges of $190 million and $240 million incurred in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for estimated costs to remediate an issue with certain I-joists coated with our Flak Jacket® Protection product. Refer to Note 16: Charges for Product Remediation for additional details.

(4) 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. Additionally, amounts shown for 2016 include equity earnings from our former Timberland Venture. As of August 31, 2016, the Timberland Venture became a fully consolidated, wholly-owned subsidiary and therefore eliminated our equity method investment at that time.

(5) Discontinued operations as presented herein consist of the operations of our former Cellulose Fibers segment. Refer to Note 3: Discontinued Operations and Other Divestituresfor more information regarding our discontinued operations.

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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES (Tables)

9 Months Ended

Sep. 30, 2017

Discontinued Operations and Disposal Groups [Abstract]

Earnings from Discontinued Operations, Net of Tax

The following table presents net earnings from discontinued operations. As all discontinued operations were sold in 2016, no assets or liabilities remain as of September 30, 2017, or December 31, 2016.

	QUARTER ENDED			YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016			SEPTEMBER 2016
Total net sales	$	420		$	1,306
Costs of products sold	350			1,110
Gross margin	70			196
Selling expenses	3			10
General and administrative expenses	7			24
Research and development expenses	—			3
Charges for integration and restructuring, closures and asset impairments(1)	13			44
Other operating income, net	(2		)	(21		)
Operating income	49			136
Equity loss from joint venture	—			(3		)
Interest expense, net of capitalized interest	(2		)	(5		)
Earnings from discontinued operations before income taxes	47			128
Income taxes	(23		)	(46		)
Net earnings from operations	24			82
Net gain on divestiture of Liquid Packaging Board	41			41
Net earnings from discontinued operations	$	65		$	123

(1) Charges relate to our strategic evaluation of the Cellulose Fibers businesses and transaction-related costs.

Cash Flows from Discontinued Operations

Cash flows from discontinued operations for the three and nine months ended September 30, 2016, are as follows:

	QUARTER ENDED		YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2016		SEPTEMBER 2016
Net cash provided by operating activities	$	58	$	192
Net cash provided by investing activities	$	259	$	225

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MERGER WITH PLUM CREEK (Tables)

9 Months Ended

Sep. 30, 2017

Business Combinations [Abstract]

Unaudited Pro Forma Information

Summarized unaudited pro forma information that presents combined amounts as if this merger occurred at the beginning of 2016 is as follows:

	QUARTER ENDED		YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURES	SEPTEMBER 2016		SEPTEMBER 2016
Net sales	$	1,709	$	4,925
Net earnings from continuing operations attributable to Weyerhaeuser common shareholders	$	172	$	438
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, basic and diluted	$	0.23	$	0.58

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NET EARNINGS PER SHARE (Tables)

9 Months Ended

Sep. 30, 2017

Dilutive Potential Common Shares

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:

	QUARTER ENDED		YEAR-TO-DATE ENDED
SHARES IN THOUSANDS	SEPTEMBER 2017	SEPTEMBER 2016	SEPTEMBER 2017	SEPTEMBER 2016
Weighted average number of outstanding common shares – basic	753,535	749,587	752,301	708,395
Dilutive potential common shares:
Stock options	2,437	3,185	2,754	2,660
Restricted stock units	551	814	529	723
Performance share units	380	458	474	427
Total effect of outstanding dilutive potential common shares	3,368	4,457	3,757	3,810
Weighted average number of outstanding common shares – dilutive	756,903	754,044	756,058	712,205

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

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

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.

	QUARTER ENDED		YEAR-TO-DATE ENDED
SHARES IN THOUSANDS	SEPTEMBER 2017	SEPTEMBER 2016	SEPTEMBER 2017	SEPTEMBER 2016
Stock options	1,381	1,835	1,381	1,835
Performance share units	556	361	556	361

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INVENTORIES (Tables)

9 Months Ended

Sep. 30, 2017

Inventories

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

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017		DECEMBER 31, 2016
LIFO Inventories:
Logs	$	5	$	18
Lumber, plywood and panels	44		51
Medium density fiberboard	11		10
Other products	14		10
FIFO or moving average cost inventories:
Logs	19		21
Lumber, plywood, panels and engineered wood products	81		71
Other products	81		92
Materials and supplies	85		85
Total	$	340	$	358

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RELATED PARTIES (Tables)

9 Months Ended

Sep. 30, 2017

Related Party Transaction [Line Items]

Schedule of Changes in Deposit of Timberlands to Related Party

Changes in our "Deposit from contribution of timberlands to related party" balance during 2017 were as follows:

DOLLAR AMOUNTS IN MILLIONS
Balance as of December 31, 2016	$	426
Lease payments to Twin Creeks Venture	(13		)
Distributions from Twin Creeks Venture	3
Balance at September 30, 2017	$	416

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS (Tables)

9 Months Ended

Sep. 30, 2017

Components of Net Periodic Benefit Costs (Credits)

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

	PENSION
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Service cost(1)	$	9		$	13		$	26		$	37
Interest cost	66			70			198			207
Expected return on plan assets	(101		)	(125		)	(306		)	(371		)
Amortization of actuarial loss	48			39			145			117
Amortization of prior service cost	1			1			3			3
Accelerated pension costs included in Plum Creek merger-related costs (Note 15)	—			—			—			5
Total net periodic benefit cost (credit) - pension	$	23		$	(2	)	$	66		$	(2	)

(1) Service cost includes $3 million and $10 million for the quarter and year-to-date ended September 30, 2016, respectively, for employees that were part of our Cellulose Fibers divestitures. These charges are included in our results of discontinued operations.

	OTHER POSTRETIREMENT BENEFITS
	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Interest cost	$	2		$	2		$	6		$	7
Amortization of actuarial loss	2			2			6			6
Amortization of prior service credit	(2		)	(2		)	(6		)	(6		)
Total net periodic benefit cost - other postretirement benefits	$	2		$	2		$	6		$	7

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ACCRUED LIABILITIES (Tables)

9 Months Ended

Sep. 30, 2017

Accrued Liabilities

Accrued liabilities were comprised of the following:

DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 30, 2017		DECEMBER 31, 2016
Wages, salaries and severance pay	$	132	$	178
Pension and other postretirement benefits	48		49
Vacation pay	35		33
Taxes – Social Security and real and personal property	38		20
Interest	85		120
Customer rebates and volume discounts	46		39
Deferred income	60		40
Accrued income taxes	4		139
Product remediation accrual(Note 16)	179		—
Other	75		74
Total	$	702	$	692

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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

9 Months Ended

Sep. 30, 2017

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:

	SEPTEMBER 30, 2017				DECEMBER 31, 2016
DOLLAR AMOUNTS IN MILLIONS	CARRYING  VALUE		FAIR VALUE (LEVEL 2)		CARRYING  VALUE		FAIR VALUE (LEVEL 2)
Long-term debt (including current maturities):
Fixed rate	$	5,771	$	6,872	$	6,061	$	6,925
Variable rate	224		225		549		550
Total Debt	$	5,995	$	7,097	$	6,610	$	7,475

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CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) (Tables)

9 Months Ended

Sep. 30, 2017

Items included in 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, 2016	$	232	$	(1,651	)	$	(9	)	$	(67	)	$	29		$	7	$	(1,459	)
Other comprehensive income (loss) before reclassifications	35		1			(3		)	—			—			2		35
Income taxes	—		(10		)	1			—			—			—		(9		)
Net other comprehensive income (loss) before reclassifications	35		(9		)	(2		)	—			—			2		26
Amounts reclassified from cumulative other comprehensive income (loss)(1)	—		145			3			6			(6		)	—		148
Income taxes	—		(49		)	(1		)	(3		)	1			—		(52		)
Net amounts reclassified from cumulative other comprehensive income (loss)	—		96			2			3			(5		)	—		96
Total other comprehensive income (loss)	35		87			—			3			(5		)	2		122
Ending balance as of September 30, 2017	$	267	$	(1,564	)	$	(9	)	$	(64	)	$	24		$	9	$	(1,337	)

(1) Actuarial losses and prior service credits (cost) are components of net periodic benefit costs (credits). See Note 8: Pension and Other Postretirement Benefit Plans.

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SHARE-BASED COMPENSATION (Tables)

9 Months Ended

Sep. 30, 2017

Schedule of Share-based Compensation Activity

Share-based compensation activity during year-to-date 2017 included the following:

SHARES IN THOUSANDS	Granted	Vested
Restricted Stock Units (RSUs)	763	710
Performance Share Units (PSUs)	348	160

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 2017

	Performance Share Units
Performance period	1/1/2017 - 12/31/2019
Valuation date average stock price (1)	$	32.79
Expected dividends	3.74					%
Risk-free rate	0.68		%	–	1.55	%
Expected volatility	22.71		%	–	24.07	%

(1) Calculated as an average of the high and low prices on grant date.

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CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS (Tables)

9 Months Ended

Sep. 30, 2017

Restructuring Cost and Reserve [Line Items]

Items Included in Our Restructuring, Closure and Asset Impairment Charges

	QUARTER ENDED				YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017		SEPTEMBER 2016		SEPTEMBER 2017		SEPTEMBER 2016
Integration and restructuring charges related to our merger with Plum Creek:
Termination benefits	$	—	$	4	$	6	$	52
Acceleration of share-based compensation and pension related benefits related to qualifying terminations	—		—		—		26
Professional services	5		6		10		45
Other integration and restructuring costs	1		4		4		9
Total integration and restructuring charges related to our merger with Plum Creek	6		14		20		132
Charges related to closures and other restructuring activities:
Termination benefits	—		1		2		4
Other closures and restructuring costs	2		1		3		3
Total charges related to closures and other restructuring activities	2		2		5		7
Impairments of long-lived assets	6		—		153		2
Total charges for integration and restructuring, closures and impairments	$	14	$	16	$	178	$	141

Changes in Accrued Severance related to Restructuring

Changes in accrued severance related to restructuring during the year-to-date period ended September 30, 2017, were as follows:

DOLLAR AMOUNTS IN MILLIONS
Accrued severance as of December 31, 2016	$	26
Charges	8
Payments	(20		)
Accrued severance as of September 30, 2017	$	14

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OTHER OPERATING COSTS (INCOME), NET (Tables)

9 Months Ended

Sep. 30, 2017

Items Included in Other Operating Costs (Income), Net

ITEMS INCLUDED IN OTHER OPERATING COSTS (INCOME), NET

	QUARTER ENDED						YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONS	SEPTEMBER 2017			SEPTEMBER 2016			SEPTEMBER 2017			SEPTEMBER 2016
Gain on disposition of non-strategic assets (1)	$	(5	)	$	(8	)	$	(14	)	$	(54	)
Foreign exchange losses (gains), net (2)	(3		)	1			—			(11		)
Litigation expense, net	8			2			14			23
Other, net	(12		)	2			2			(14		)
Total other operating costs (income), net	$	(12	)	$	(3	)	$	2		$	(56	)

(1) Gain on disposition of non-strategic assets included a $36 million pretax gain recognized in the first quarter of 2016 on the sale of our Federal Way, Washington headquarters campus. The remaining gains on disposition of non-strategic assets includes sales such as redundant offices and nurseries.

(2) Foreign exchange losses (gains) result from changes in exchange rates, primarily related to our Canadian operations.

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BASIS OF PRESENTATION Additional Information (Details) $ in Millions	Jan. 01, 2017 USD ($)
ASU 2016-16
Deferred Tax Assets	$ 22

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BUSINESS SEGMENTS Reconciliation from Segment Totals to Consolidated (Details) - USD ($) $ in Millions	3 Months Ended			6 Months Ended	9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Jun. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	$ 1,872		$ 1,709		$ 5,373	$ 4,769
Intersegment sales	179		233		544	692
Third party and intersegment revenue, net	2,051		1,942		5,917	5,461
Net contribution to earnings	201		298		639	740
Interest expense, net of capitalized interest	(98)		(114)		(297)	(323)
Earnings from continuing operations before income taxes	103		184		342	417
Income taxes	27		(22)		(31)	(64)
Earnings from continuing operations	130		162		311	353
Earnings from discontinued operations, net of income taxes (5)	0		65		0	123
Net earnings	130		227		311	476
Dividends on preference shares	0		0		0	(22)
Net earnings attributable to Weyerhaeuser common shareholders	130		227		311	454
Charges for impairment of assets					153	23
Charges for product remediation	(190)		0		(240)	0
Intersegment eliminations
Segment Reporting, Revenue Reconciling Item [Line Items]
Intersegment sales	(179)		(233)		(544)	(692)
Operating segments
Segment Reporting, Revenue Reconciling Item [Line Items]
Net contribution to earnings	218		307		752	831
Unallocated items
Segment Reporting, Revenue Reconciling Item [Line Items]
Net contribution to earnings	(17)		(9)		(113)	(91)
Timberlands
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	491		484		1,446	1,342
Intersegment sales	179		216		544	631
Net contribution to earnings	131		122		267	376
Charges for impairment of assets				$ 147
RE & ENR
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	82		48		181	125
Net contribution to earnings	47		15		96	42
Wood Products
Segment Reporting, Revenue Reconciling Item [Line Items]
Sales to unaffiliated customers	1,299		1,177		3,746	3,302
Intersegment sales	0		17		0	61
Net contribution to earnings	40		$ 170		389	$ 413
Charges for product remediation	$ (190)	$ (50)			$ (240)

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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES Earnings from Discontinued Operations, Net of Tax (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total net sales		$ 420		$ 1,306
Costs of products sold		350		1,110
Gross margin		70		196
Selling expenses		3		10
General and administrative expenses		7		24
Research and development expenses		0		3
Charges for integration and restructuring, closures and asset impairments(1)		13		44
Other operating income, net		(2)		(21)
Operating income		49		136
Disposal Group, Including Discontinued Operation, Equity Income (Loss) from Joint Venture		0		(3)
Interest expense, net of capitalized interest		(2)		(5)
Earnings from discontinued operations before income taxes		47		128
Income taxes		(23)		(46)
Net earnings from operations		24		82
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax		41		41
Earnings from discontinued operations, net of income taxes (Note 3)	$ 0	$ 65	$ 0	$ 123

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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES Cash Flows from Discontinued Operations (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net cash provided by operating activities	$ 58	$ 192
Net cash provided by investing activities	$ 259	$ 225

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DISCONTINUED OPERATIONS AND OTHER DIVESTITURES Additional Details (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2017	Dec. 31, 2016	Sep. 30, 2017
Uruguayan Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets			$ 0
Proceeds from divestiture of businesses	$ 403
Disposal Group, Including Discontinued Operation, Liabilities			0
Cellulose Fibers
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Assets		$ 0	0
Net gain on divestiture of business		789
Proceeds from divestiture of businesses		2,500
Disposal Group, Including Discontinued Operation, Liabilities		$ 0	$ 0

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MERGER WITH PLUM CREEK Unaudited Pro Forma Information (Details) - Plum Creek - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Business Acquisition [Line Items]
Net sales	$ 1,709	$ 4,925
Net earnings from continuing operations attributable to Weyerhaeuser common shareholders	$ 172	$ 438
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, basic	$ 0.23	$ 0.58
Earnings from continuing operations per share attributable to Weyerhaeuser common shareholders, diluted	$ 0.23	$ 0.58

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MERGER WITH PLUM CREEK Additional Information (Details) - Plum Creek - USD ($) $ in Millions		3 Months Ended	9 Months Ended
	Feb. 19, 2016	Sep. 30, 2016	Sep. 30, 2016
Business Acquisition [Line Items]
Total assets acquired	$ 10,000
Consideration transferred	6,400
Total liabilities assumed	$ 3,600
Non-recurring merger-related costs		$ 10	$ 144

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NET EARNINGS PER SHARE Dilutive Potential Common Shares (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Basic	753,535	749,587	752,301	708,395
Dilutive potential common shares	3,368	4,457	3,757	3,810
Diluted	756,903	754,044	756,058	712,205
Stock options
Dilutive potential common shares	2,437	3,185	2,754	2,660
Restricted stock units
Dilutive potential common shares	551	814	529	723
Performance share units
Dilutive potential common shares	380	458	474	427

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NET EARNINGS PER SHARE Potential Shares Not Included in the Computation of Diluted Earnings Per Share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
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	1,381	1,835	1,381	1,835
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	556	361	556	361

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NET EARNINGS PER SHARE Additional Information (Details) shares in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017 $ / shares shares	Sep. 30, 2016 $ / shares	Sep. 30, 2017 $ / shares shares	Sep. 30, 2016 $ / shares	Dec. 31, 2016 shares	Jul. 01, 2016	Jun. 24, 2013 shares
Net earnings per share, basic and diluted | $ / shares	$ 0.17	$ 0.30	$ 0.41	$ 0.64
Preference shares conversion ratio						1.6929
6.375 percent Mandatory Convertible Preference Shares, Series A
Preferred stock, shares outstanding							13.8
6.375 percent Mandatory Convertible Preference Shares, Series A | 6.375 percent Mandatory Convertible Preference Shares, Series A
Preferred stock, shares outstanding	0.0		0.0		0.0

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INVENTORIES Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Inventory [Line Items]
Total	$ 340	$ 358
Logs
Inventory [Line Items]
LIFO inventories	5	18
FIFO or moving average cost inventories	19	21
Lumber, plywood and panels
Inventory [Line Items]
LIFO inventories	44	51
Medium density fiberboard
Inventory [Line Items]
LIFO inventories	11	10
Lumber, plywood, panels and engineered wood products
Inventory [Line Items]
FIFO or moving average cost inventories	81	71
Other products
Inventory [Line Items]
LIFO inventories	14	10
FIFO or moving average cost inventories	81	92
Materials and supplies
Inventory [Line Items]
FIFO or moving average cost inventories	$ 85	$ 85

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INVENTORIES Additional information (Details) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Inventory [Line Items]
Increase in inventory amount if FIFO would have been used	$ 70	$ 71

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RELATED PARTIES Schedule of Changes in Deposit of Timberlands to Related Party (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Related Party Transaction [Line Items]
Balance as of December 31, 2016	$ 426
Balance at September 30, 2017	416
Twin Creeks Venture
Related Party Transaction [Line Items]
Lease payments to Twin Creeks Venture	(13)
Distributions from Twin Creeks Venture	3
Balance at September 30, 2017	$ 416

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RELATED PARTIES Additional Information (Details) $ in Millions		3 Months Ended			9 Months Ended
	Apr. 01, 2016 USD ($) a	Dec. 31, 2017 USD ($) a	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Related Party Transaction [Line Items]
Equity earnings from joint ventures (Note 7)			$ 1.0	$ 9.0	$ 1.0	$ 21.0
Proceeds from contribution of timberlands to related party					$ 0.0	440.0
Document Period End Date					Sep. 30, 2017
Distributions received from joint ventures, return of capital					$ 23.0	$ 34.0
Investments in and advances to joint ventures			33.0		33.0		$ 56.0
Real Estate Development Ventures
Related Party Transaction [Line Items]
Equity earnings from joint ventures (Note 7)			1.0		1.0
Distributions received from joint ventures, return of capital			23.0
Investments in and advances to joint ventures			$ 33.0		$ 33.0		$ 56.0
Twin Creeks Venture
Related Party Transaction [Line Items]
Percentage of profit in excess of guaranteed annual return					75.00%
Guaranteed annual return					3.00%
Ownership interest					21.00%
Proceeds from contribution of timberlands to related party	$ 440.0
Agreed-upon value of acres contributed	$ 560.0
Contributed acres of timberlands to venture | a	260,000
Subsequent Event [Member] | Twin Creeks Venture
Related Party Transaction [Line Items]
Proceeds from Sale of Property, Plant, and Equipment		$ 203.0
Proceeds from Sale of Interest in Partnership Unit		$ 108.0
Sale of Timberland acreage | a		100,000
Mississippi | Subsequent Event [Member] | Twin Creeks Venture
Related Party Transaction [Line Items]
Sale of Timberland acreage | a		80,000
Georgia | Subsequent Event [Member] | Twin Creeks Venture
Related Party Transaction [Line Items]
Sale of Timberland acreage | a		20,000

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS Components of Net Periodic Benefit Costs (Credits) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Document Period End Date			Sep. 30, 2017
Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost(1)	$ 9	$ 13	$ 26	$ 37
Interest cost	66	70	198	207
Expected return on plan assets	(101)	(125)	(306)	(371)
Amortization of actuarial loss	48	39	145	117
Amortization of prior service cost	1	1	3	3
Accelerated pension costs included in Plum Creek merger-related costs (Note 15)	0	0	0	5
Total net periodic benefit cost (credit)	23	(2)	66	(2)
Other Postretirement Benefits
Defined Benefit Plan Disclosure [Line Items]
Interest cost	2	2	6	7
Amortization of actuarial loss	2	2	6	6
Amortization of prior service cost	(2)	(2)	(6)	(6)
Total net periodic benefit cost (credit)	$ 2	2	$ 6	7
Discontinued Operations [Member] | Pension
Defined Benefit Plan Disclosure [Line Items]
Service cost(1)		$ 3		$ 10

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PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS Additional Information (Details) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2017	Sep. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Plan Assets, Period Increase (Decrease)	$ 17
Defined Benefit Plan, Benefit Obligation, Period Increase (Decrease)	(10)
Defined Benefit Plan Funded Status Period Increase (Decrease)	$ 27
U.S. and Canadian Other Postretirement Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2017		$ 21
Registered Canadian Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2017		23
Non Registered Canadian Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2017		3
U.S. Non-Qualified Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2017		26
U.S. Qualified Pension Plans
Defined Benefit Plan Disclosure [Line Items]
Expected contribution to benefit plans during 2017		$ 0

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ACCRUED LIABILITIES Accrued Liabilities (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
Wages, salaries and severance pay	$ 132	$ 178
Pension and other postretirement benefits	48	49
Vacation pay	35	33
Taxes – Social Security and real and personal property	38	20
Interest	85	120
Customer rebates and volume discounts	46	39
Deferred income	60	40
Accrued income taxes	4	139
Product remediation accrual	179	0
Other	75	74
Total	$ 702	$ 692

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LONG-TERM DEBT AND LINES OF CREDIT Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2017	Jul. 25, 2017	Mar. 31, 2017
Line of credit, expiration date	Mar. 31, 2022
Line of credit, maximum borrowing capacity	$ 1,500
Revolving line of credit, outstanding balance	$ 0
Prior Credit Facility
Line of credit, expiration date	Sep. 30, 2018
Line of credit, maximum borrowing capacity			$ 1,000
6.95% debenture [Member]
Line of credit, expiration date	Aug. 31, 2017
Repayments of debt	$ 281
Variable rate term loan, matures 2020
Long-term debt outstanding		$ 550
Repayments of debt	325
New variable rate term loan, matures 2026
Proceeds from issuance of debt	$ 225

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FAIR VALUE OF FINANCIAL INSTRUMENTS Estimated Fair Values and Carrying Values of Long-Term Debt (Detail) - USD ($) $ in Millions	Sep. 30, 2017	Dec. 31, 2016
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term debt, including current maturities	$ 5,995	$ 6,610
Fair Value, Inputs, Level 2
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term debt, fair value	7,097	7,475
Fixed interest rate
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term debt, including current maturities	5,771	6,061
Fixed interest rate | Fair Value, Inputs, Level 2
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term debt, fair value	6,872	6,925
Variable interest rate
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term debt, including current maturities	224	549
Variable interest rate | Fair Value, Inputs, Level 2
FAIR VALUE OF FINANCIAL INSTRUMENTS [Line Items]
Long-term debt, fair value	$ 225	$ 550

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LEGAL PROCEEDINGS, COMMITMENTS AND CONTINGENCIES Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Commitments and Contingencies Disclosure [Line Items]
Accrued estimated remediation costs	$ 46		$ 46
Asset retirement obligations	30		30
Charges for product remediation	$ (190)	$ 0	$ (240)	$ 0

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CUMULATIVE OTHER COMPREHENSIVE INCOME (LOSS) Items Included in Cumulative Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Beginning balance			$ (1,459)
Other comprehensive income (loss) before reclassifications			35
Income taxes			(9)
Net other comprehensive income (loss) before reclassifications			26
Amounts reclassified from cumulative other comprehensive income (loss)(1)			148
Income taxes			(52)
Net amounts reclassified from cumulative other comprehensive income (loss)			96
Total other comprehensive income	$ 42	$ 23	122	$ 102
Ending balance	(1,337)		(1,337)
Foreign currency translation adjustments
Beginning balance			232
Other comprehensive income (loss) before reclassifications			35
Income taxes			0
Net other comprehensive income (loss) before reclassifications			35
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			35
Ending balance	267		267
Actuarial losses | Pension
Beginning balance			(1,651)
Other comprehensive income (loss) before reclassifications			1
Income taxes			(10)
Net other comprehensive income (loss) before reclassifications			(9)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			145
Income taxes			(49)
Net amounts reclassified from cumulative other comprehensive income (loss)			96
Total other comprehensive income			87
Ending balance	(1,564)		(1,564)
Actuarial losses | Other Postretirement Benefits
Beginning balance			(67)
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)			6
Income taxes			(3)
Net amounts reclassified from cumulative other comprehensive income (loss)			3
Total other comprehensive income			3
Ending balance	(64)		(64)
Prior service costs | Pension
Beginning balance			(9)
Other comprehensive income (loss) before reclassifications			(3)
Income taxes			1
Net other comprehensive income (loss) before reclassifications			(2)
Amounts reclassified from cumulative other comprehensive income (loss)(1)			3
Income taxes			(1)
Net amounts reclassified from cumulative other comprehensive income (loss)			2
Total other comprehensive income			0
Ending balance	(9)		(9)
Prior service costs | Other Postretirement Benefits
Beginning balance			29
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)			(6)
Income taxes			1
Net amounts reclassified from cumulative other comprehensive income (loss)			(5)
Total other comprehensive income			(5)
Ending balance	24		24
Unrealized gains on available-for-sale securities
Beginning balance			7
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)			0
Income taxes			0
Net amounts reclassified from cumulative other comprehensive income (loss)			0
Total other comprehensive income			2
Ending balance	$ 9		$ 9

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SHARE-BASED COMPENSATION Schedule of Share-Based Compensation Activity (Details) shares in Thousands	9 Months Ended
	Sep. 30, 2017 shares
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	763
Vested	710
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	348
Vested	160

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SHARE-BASED COMPENSATION Weighted Average Assumptions Used in Estimating the Value of Performance Share Units Granted (Details) - Performance share units	9 Months Ended
	Sep. 30, 2017 $ / shares Rate
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period	1/1/2017 - 12/31/2019
Valuation date average stock price (1) | $ / shares	$ 32.79
Expected dividends	3.74%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free rate minimum	0.68%
Expected volatility minimum	22.71%
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free rate maximum	1.55%
Expected volatility maximum	24.07%

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SHARE-BASED COMPENSATION Additional Information (Details) - USD ($)	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued during period	4,500,000.00
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of units granted	$ 32.79
Granted	763,000
Performance share units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average fair value of units granted	$ 37.93
Granted	348,000
Performance share units | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Final number of shares awarded of each grant's target	0.00%
Performance share units | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Final number of shares awarded of each grant's target	150.00%
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock options granted	0
Stock appreciation rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted	0
Value management awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target level vesting rate		$ 100

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CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS Items Included in Our Integration and Restructuring, Closure and Asset Impairment Charges (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Charges related to integration and restructuring
Termination benefits			$ 8
Impairments of long-lived assets			153	$ 23
Total charges for integration and restructuring, closures and impairments	$ 14	$ 16	178	141
Plum Creek
Charges related to integration and restructuring
Termination benefits	0	4	6	52
Acceleration of share-based compensation and pension related benefits related to qualifying terminations	0	0	0	26
Professional services	5	6	10	45
Other integration and restructuring costs	1	4	4	9
Total integration and restructuring charges related to our merger with Plum Creek	6	14	20	132
Other
Charges related to integration and restructuring
Termination benefits	0	1	2	4
Other closures and restructuring costs	2	1	3	3
Total charges for integration and restructuring, closures and impairments	2	2	5	7
Continuing Operations [Member]
Charges related to integration and restructuring
Impairments of long-lived assets	$ 6	$ 0	$ 153	$ 2

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CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS Changes in Accrued Severance related to Restructuring (Details) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($)
Restructuring Cost and Reserve [Line Items]
Accrued severance as of December 31, 2016	$ 26
Charges	8
Payments	(20)
Accrued severance as of September 30, 2017	$ 14

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CHARGES FOR INTEGRATION AND RESTRUCTURING, CLOSURES AND ASSET IMPAIRMENTS Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2017	Sep. 30, 2016
Restructuring Cost and Reserve [Line Items]
Impairments of long-lived assets			$ 153	$ 23
Uruguayan Operations
Restructuring Cost and Reserve [Line Items]
Impairments of long-lived assets		$ 147
Proceeds from divestiture of businesses		$ 403
Non-strategic assets
Restructuring Cost and Reserve [Line Items]
Impairments of long-lived assets	$ 6

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CHARGES FOR PRODUCT REMEDIATION (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Jun. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Commitments and Contingencies Disclosure [Line Items]
Charges for product remediation	$ (190)		$ 0	$ (240)	$ 0
Charges for product remediation, payments				61
Product remediation accrual	179			179		$ 0
Wood Products
Commitments and Contingencies Disclosure [Line Items]
Charges for product remediation	$ (190)	$ (50)		$ (240)

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OTHER OPERATING COSTS (INCOME), NET Items Included in Other Operating Costs (Income), Net (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Sep. 30, 2016
Gain on disposition of non-strategic assets (1)	$ (5)	$ (8)	$ (36)	$ (14)	$ (54)
Foreign exchange losses (gains), net (2)	(3)	1		0	(11)
Litigation expense, net	8	2		14	23
Other expense, net		2		2
Other (income), net	(12)				(14)
Total other operating costs (income), net	$ (12)	$ (3)		$ 2	$ (56)

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INCOME TAXES Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2017 USD ($) Rate
Estimated annual effective tax rate for our Taxable REIT Subsidiary | Rate	34.00%
Gain from potential tax adjustment	$ 600
Tax liability from potential adjustment	$ 100
Maximum
Percentage of gain distributed in common stock	80.00%