UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
  __________________________________________________
FORM 10-Q 
  __________________________________________________

xQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2017MARCH 31, 2018
or
oTRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE TRANSITION PERIOD FROM             TO             
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 OctoberApril 23, 2017, 754,829,4172018, 757,013,955 shares of the registrant’s common stock ($1.25 par value) were outstanding.
 


TABLE OF CONTENTS
 
PART IFINANCIAL INFORMATION 
ITEM 1.FINANCIAL STATEMENTS: 
 
 
 
 
 
 
ITEM 2.
ITEM 3.
ITEM 4.
   
PART IIOTHER INFORMATION 
ITEM 1.
ITEM 1A.
ITEM 2.
ITEM 3.
ITEM ITEM��4.
ITEM 5.
ITEM 6.
 




FINANCIAL INFORMATION

WEYERHAEUSER COMPANY
CONSOLIDATED STATEMENT OF OPERATIONS
(UNAUDITED)
 QUARTER ENDED YEAR-TO-DATE
ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURESSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016
Net sales$1,872
 $1,709
 $5,373
 $4,769
Costs of products sold1,374
 1,328
 3,982
 3,702
Gross margin498
 381
 1,391
 1,067
Selling expenses22
 22
 66
 67
General and administrative expenses75
 80
 238
 253
Research and development expenses4
 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 income205
 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 other11
 15
 29
 34
Interest expense, net of capitalized interest(98) (114) (297) (323)
Earnings from continuing operations before income taxes103
 184
 342
 417
Income taxes (Note 18)
27
 (22) (31) (64)
Earnings from continuing operations130
 162
 311
 353
Earnings from discontinued operations, net of income taxes (Note 3)

 65
 
 123
Net earnings130
 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):
       
Basic753,535
 749,587
 752,301
 708,395
Diluted756,903
 754,044
 756,058
 712,205
 QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURESMARCH 2018 MARCH 2017
Net sales (Note 3)
$1,865
 $1,693
Costs of products sold1,348
 1,272
Gross margin517
 421
Selling expenses23
 22
General and administrative expenses78
 87
Research and development expenses2
 4
Charges for integration and restructuring, closures and asset impairments (Note 15)
2
 13
Charges (recoveries) for product remediation (Note 16)
(20) 
Other operating costs, net (Note 17)
28
 2
Operating income404
 293
Non-operating pension and other postretirement benefit costs(24) (22)
Interest income and other12
 9
Interest expense, net of capitalized interest(93) (99)
Earnings before income taxes299
 181
Income taxes (Note 18)
(30) (24)
Net earnings$269

$157
Earnings per share, basic and diluted (Note 5)
$0.35
 $0.21
Dividends paid per share$0.32
 $0.31
Weighted average shares outstanding (in thousands) (Note 5):
   
Basic756,815
 750,665
Diluted759,462
 754,747
See accompanying Notes to Consolidated Financial Statements.



WEYERHAEUSER COMPANY
CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME
(UNAUDITED)
QUARTER ENDED 
YEAR-TO-DATE
ENDED
QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Net earnings$130
 $227
 $311
 $476
$269
 $157
Other comprehensive income (loss):          
Foreign currency translation adjustments24
 (5) 35
 34
(15) 2
Actuarial gains, net of tax expense of $12, $15, $62 and $4018
 29
 90
 70
Prior service costs, net of tax benefit of $0, $0, $1 and $0(1) (1) (5) (3)
Amortization of net pension and other postretirement benefits actuarial loss, net of tax expense of $19 and $2654
 29
Amortization of net prior service credit, net of tax benefit of $0 and $0(1) (1)
Unrealized gains on available-for-sale securities1
 
 2
 1

 1
Total other comprehensive income42
 23
 122
 102
38
 31
Total comprehensive income$172
 $250
 $433
 $578
$307
 $188
See accompanying Notes to Consolidated Financial Statements.



WEYERHAEUSER COMPANY
CONSOLIDATED BALANCE SHEET
(UNAUDITED)
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 30,
2017
 DECEMBER 31,
2016
MARCH 31,
2018
 DECEMBER 31,
2017
ASSETS      
Current assets:      
Cash and cash equivalents$497
 $676
$598
 $824
Receivables, less discounts and allowances of $1 and $1485
 390
481
 396
Receivables for taxes65
 84
24
 14
Inventories (Note 6)
340
 358
445
 383
Prepaid expenses and other current assets130
 114
118
 98
Current restricted financial investments held by variable interest entities (Note 7)
253
 
Total current assets1,517
 1,622
1,919
 1,715
Property and equipment, less accumulated depreciation of $3,393 and $3,3061,534
 1,562
Property and equipment, less accumulated depreciation of $3,354 and $3,3381,573
 1,618
Construction in progress225
 213
275
 225
Timber and timberlands at cost, less depletion charged to disposals13,627
 14,299
Timber and timberlands at cost, less depletion12,888
 12,954
Minerals and mineral rights, less depletion312
 319
306
 308
Investments in and advances to joint ventures (Note 7)
33
 56
Goodwill40
 40
40
 40
Deferred tax assets240
 293
244
 268
Other assets259
 224
278
 316
Restricted financial investments held by variable interest entities615
 615
Restricted financial investments held by variable interest entities (Note 7)
362
 615
Total assets$18,402
 $19,243
$17,885
 $18,059
      
LIABILITIES AND EQUITY  
  
Current liabilities:      
Current maturities of long-term debt (Note 10)
$62
 $281
$
 $62
Current debt (nonrecourse to the company) held by variable interest entities (Note 7)
209
 209
Accounts payable259
 233
245
 249
Accrued liabilities (Note 9)
702
 692
457
 645
Total current liabilities1,023
 1,206
911
 1,165
Long-term debt (Note 10)
5,933
 6,329
5,928
 5,930
Long-term debt (nonrecourse to the company) held by variable interest entities511
 511
Long-term debt (nonrecourse to the company) held by variable interest entities (Note 7)
302
 302
Deferred pension and other postretirement benefits (Note 8)
1,201
 1,322
1,454
 1,487
Deposit from contribution of timberlands to related party (Note 7)
416
 426
Other liabilities273
 269
299
 276
Total liabilities9,357
 10,063
8,894
 9,160
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 shares941
 936
Common shares: $1.25 par value; authorized 1,360,000,000 shares; issued and outstanding: 756,699,978 and 755,222,727 shares946
 944
Other capital8,391
 8,282
8,466
 8,439
Retained earnings1,050
 1,421
1,365
 1,078
Cumulative other comprehensive loss (Note 13)
(1,337) (1,459)
Accumulated other comprehensive loss (Note 13)
(1,786) (1,562)
Total equity9,045
 9,180
8,991
 8,899
Total liabilities and equity$18,402
 $19,243
$17,885
 $18,059
See accompanying Notes to Consolidated Financial Statements.


WEYERHAEUSER COMPANY
CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED) 
 YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016
Cash flows from operations:   
Net earnings$311
 $476
Noncash charges (credits) to earnings:   
Depreciation, depletion and amortization394
 428
Basis of real estate sold48
 49
Deferred income taxes, net9
 96
Pension and other postretirement benefits (Note 8)
72
 5
Share-based compensation expense29
 53
Charges for impairment of assets153
 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
Inventories4
 49
Prepaid expenses(9) (3)
Accounts payable and accrued liabilities184
 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 operations847
 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 operations423
 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
Other5
 42
Cash from investing activities192
 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 options89
 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 period676
 1,011
Cash and cash equivalents from discontinued operations at beginning of period
 1
Cash and cash equivalents at beginning of period676
 1,012
    
Cash and cash equivalents from continuing operations at end of period497
 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)
 YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONSMARCH 2018 MARCH 2017
Cash flows from operations:   
Net earnings$269
 $157
Noncash charges to earnings:   
Depreciation, depletion and amortization120
 133
Basis of real estate sold12
 14
Deferred income taxes, net10
 3
Pension and other postretirement benefits (Note 8)
34
 32
Share-based compensation expense9
 10
Foreign exchange transaction losses (Note 17)
2
 3
Change in:   
Receivables, less allowances(83) (70)
Receivables and payables for taxes5
 (36)
Inventories(66) (28)
Prepaid expenses(5) (9)
Accounts payable and accrued liabilities(173) (137)
Pension and postretirement benefit contributions and payments(16) (22)
Other18
 (15)
Net cash from operations136
 35
Cash flows from investing activities:   
Capital expenditures for property and equipment(61) (52)
Capital expenditures for timberlands reforestation(20) (23)
Proceeds from sale of nonstrategic assets2
 8
Other3
 (1)
Net cash used in investing activities(76) (68)
Cash flows from financing activities:   
Cash dividends on common shares(242) (233)
Payments of long-term debt (Note 10)
(62) 
Proceeds from exercise of stock options25
 55
Other(7) (10)
Net cash used in financing activities(286) (188)
    
Net change in cash and cash equivalents(226) (221)
Cash and cash equivalents at beginning of period824
 676
Cash and cash equivalents at end of period$598
 $455
    
Cash paid during the period for:   
Interest, net of amount capitalized of $3 and $3$105
 $120
Income taxes$17
 $59
See accompanying Notes to Consolidated Financial Statements.


INDEX FOR NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

NOTE 1:
   
NOTE 2:
   
NOTE 3:
   
NOTE 4:
   
NOTE 5:
   
NOTE 6:
   
NOTE 7:
   
NOTE 8:
   
NOTE 9:
   
NOTE 10:
   
NOTE 11:
   
NOTE 12:
   
NOTE 13:
   
NOTE 14:
   
NOTE 15:
   
NOTE 16:
   
NOTE 17:
   
NOTE 18:




NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (UNAUDITED)
FOR THE QUARTERSQUARTER ENDED MARCH 31, 2018 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 of operations 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, 2016.2017. 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

Leases

In May 2014,February 2016, 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, 2019,2019. We are still evaluating certain aspects of the revised guidance and are evaluatingsubsequent revisions either made or being contemplated by the impact on our consolidated financial statements and related disclosures.



In October 2016, FASB, issued ASU 2016-16, which requires immediateincluding application of the available practical expedients. We expect the adoption to result in the recognition of the income tax consequences upon intra-entity transferspresent value 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 standardthe future commitments 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 impactoperating leases 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.

Reclassification of Certain Amounts from Accumulated Other Comprehensive Loss

In February 2018, the FASB issued ASU 2018-02, which allows for the reclassification of certain income tax effects related to the Tax Cuts and Jobs Act (the "Tax Act") between “Accumulated other comprehensive loss” and “Retained earnings.” This ASU provides that adjustments to deferred tax liabilities and assets related to a change in tax laws be included in “Income from continuing operations”, even in situations where the related items were originally recognized in “Other comprehensive income.” The amendments in this ASU are effective for all entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years, with early adoption permitted. Adoption of this ASU is to be applied either in the period of adoption or retrospectively to each period in which the effect of the change in the tax laws was recognized. We adopted this ASU during first quarter 2018 using the period of adoption method, which resulted in a reclassification of $253 million from "Accumulated other comprehensive loss" to "Retained earnings" on our Consolidated Balance Sheetdue to changes in federal statutory and effective state rates. In general, tax effects unrelated to the Tax Cuts and Jobs Act are released from accumulated other comprehensive loss using the portfolio approach.

In January 2016, the FASB issued ASU No. 2016-01, which updates certain aspects of recognition, measurement, presentation and disclosure of financial instruments. We adopted ASU 2016-01 in first quarter 2018, which resulted in a reclassification of accumulated unrealized gains on available-for-sale securities of $9 million from "Accumulated other comprehensive loss" to "Retained earnings" on 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; 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 andA reconciliation of our business segment information to the respective information in the Consolidated StatementsStatement of Operations is as follows:
QUARTER ENDED YEAR-TO-DATE ENDEDQUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Sales to unaffiliated customers:       
Sales to unaffiliated customers (Note 3):
   
Timberlands$491
 $484
 $1,446
 $1,342
$505
 $486
Real Estate & ENR82
 48
 181
 125
51
 53
Wood Products1,299
 1,177
 3,746
 3,302
1,309
 1,154
1,872
 1,709
 5,373
 4,769
1,865
 1,693
Intersegment sales:          
Timberlands179
 216
 544
 631
228
 202
Wood Products
 17
 
 61
179
 233
 544
 692


 

Total sales2,051
 1,942
 5,917
 5,461
2,093
 1,895
Intersegment eliminations(179) (233) (544) (692)(228) (202)
Total$1,872
 $1,709
 $5,373
 $4,769
$1,865
 $1,693
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
Timberlands$189
 $148
Real Estate & ENR(1)
25
 26
Wood Products270
 172
218
 307
 752
 831
484
 346
Unallocated items(4)
(17) (9) (113) (91)
Unallocated items(2)
(92) (66)
Net contribution to earnings201
 298
 639
 740
392
 280
Interest expense, net of capitalized interest(98) (114) (297) (323)(93) (99)
Earnings from continuing operations before income taxes103
 184
 342
 417
Earnings before income taxes299
 181
Income taxes27
 (22) (31) (64)(30) (24)
Earnings from continuing operations130
 162
 311
 353
Earnings from discontinued operations, net of income taxes (5)

 65
 
 123
Net earnings130
 227
 311
 476
$269
 $157
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)(2)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 expenses, pension and postretirement costs, foreign exchange transaction gains and losses associated with financing, and the elimination of intersegment profit in inventory and LIFO.


NOTE 3: REVENUE

A majority of our revenue is derived from sales of delivered logs and manufactured wood products. We account for revenue in accordance with ASC Topic 606, Revenue from Contracts with Customers, which we adopted on January 1, 2018, using the cumulative effect method. The adoption of the new revenue recognition guidance did not materially impact our Consolidated Statement of Operations, Consolidated Balance Sheet, or Consolidated Statement of Cash Flows.

PERFORMANCE OBLIGATIONS

A performance obligation, as defined in ASC Topic 606, is a promise in a contract to transfer a distinct good or service to a customer. A contract's transaction price is allocated to each distinct performance obligation and recognized as revenue at the point in time, or over the period, in which the performance obligation is satisfied.

Performance obligations associated with delivered log sales are typically satisfied when the logs are delivered to our customers’ mills or delivered to an ocean vessel in the case of export sales. Performance obligations associated with the sale of wood products are typically satisfied when the products are shipped. Customers are generally invoiced shortly after logs are delivered or after wood products are shipped, with payment generally due within a month or less of the invoice date. ASC Topic 606 requires entities to consider significant financing components of contracts with customers, though allows for the use of a practical expedient when the period between satisfaction of a


performance obligation and payment receipt is one year or less. Given the nature of our revenue transactions, we have elected to utilize this practical expedient.

Performance obligations associated with real estate sales are generally met when placed into escrow and all conditions of closing have been satisfied.

CONTRACT ESTIMATES

Substantially all of the company’s performance obligations are satisfied as of a point in time. Therefore, there is little judgment in determining when control transfers for our business segments as described above.

The transaction price for log sales generally equals the amount billed to our customer for logs delivered during the accounting period. For the limited number of log sales subject to a long-term supply agreement, the transaction price is variable but is known at the time of billing. For wood products sales, the transaction price is generally the amount billed to the customer for the products shipped but may be reduced slightly for estimated cash discounts and rebates.

There are no significant contract estimates related to the real estate business.

CONTRACT BALANCES

In general, customers are billed and a receivable is recorded as we ship and/or deliver wood products and logs. We generally receive payment shortly after products have been received by our customers. Contract asset and liability balances are immaterial.

For real estate sales, the company receives the entire consideration in cash at closing.


MAJOR PRODUCTS

A reconciliation of revenue recognized by our major products:
  QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSMARCH 2018 MARCH 2017
Net sales:   
Timberlands Segment   
Delivered logs(1):
   
West   
Domestic sales$137
 $119
Export sales129
 106
Subtotal West266
 225
South157
 148
North25
 27
Other14
 20
Subtotal delivered logs sales462
 420
Stumpage and pay-as-cut timber15
 12
Recreational and other lease revenue14
 14
Other(2)
14
 40
Net sales attributable to Timberlands segment505
 486
Real Estate & ENR Segment   
Real estate34
 37
Energy and natural resources17
 16
Net sales attributable to Real Estate & ENR segment51
 53
Wood Products Segment   
Structural lumber569
 478
Engineered solid section129
 117
Engineered I-joists78
 73
Oriented strand board232
 203
Softwood plywood50
 44
Medium density fiberboard43
 47
Complementary building products137
 122
Other71
 70
Net sales attributable to Wood Products segment1,309
 1,154
Total net sales$1,865
 $1,693

(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 managed Twin Creeks Venture. Our management agreement for the LIFO reserve. Additionally, amounts shown forTwin Creeks Venture began in April 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.terminated in December 2017.
(5)(2)
Discontinued operationsOther Timberlands sales include sales of seeds and seedlings, chips, as presented herein consist of the operations ofwell as sales from our former Cellulose Fibers segment.Uruguayan operations (sold during third quarter 2017). Our former Uruguayan operations included logs, plywood and hardwood lumber harvested or produced. Refer to Note 3: Discontinued4: Operations and Other DivestituresDivestedfor more information regarding our discontinued operations.further information.





NOTE 3:DISCONTINUED OPERATIONS AND OTHER DIVESTITURES

4: 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 $147 million 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 MILLIONSSEPTEMBER 2016 SEPTEMBER 2016
Total net sales$420
 $1,306
Costs of products sold350
 1,110
Gross margin70
 196
Selling expenses3
 10
General and administrative expenses7
 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 income49
 136
Equity loss from joint venture
 (3)
Interest expense, net of capitalized interest(2) (5)
Earnings from discontinued operations before income taxes47
 128
Income taxes(23) (46)
Net earnings from operations24
 82
Net gain on divestiture of Liquid Packaging Board41
 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 MILLIONSSEPTEMBER 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 FIGURESSEPTEMBER 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:
$0.170.35 during thirdfirst quarter 2017 and $0.41 during year-to-date 2017;2018 and
$0.300.21 during thirdfirst quarter 2016 and $0.64 during year-to-date 2016.2017.

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 ENDEDQUARTER ENDED
SHARES IN THOUSANDSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Weighted average number of outstanding common shares – basic753,535
 749,587
 752,301
 708,395
Weighted average common shares outstanding – basic756,815
 750,665
Dilutive potential common shares:          
Stock options2,437
 3,185
 2,754
 2,660
1,682
 2,981
Restricted stock units551
 814
 529
 723
569
 547
Performance share units380
 458
 474
 427
396
 554
Total effect of outstanding dilutive potential common shares3,368
 4,457
 3,757
 3,810
2,647
 4,082
Weighted average number of outstanding common shares – dilutive756,903
 754,044
 756,058
 712,205
Weighted average common shares outstanding – dilutive759,462
 754,747

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 THOUSANDSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016
Stock options1,381
 1,835
 1,381
 1,835
Performance share units556
 361
 556
 361

Mandatory Convertible Preference Shares

We issued 13.8 million 6.375 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.
 QUARTER ENDED
SHARES IN THOUSANDSMARCH 2018 MARCH 2017
Stock options1,301
 1,432
Performance share units744
 568


NOTE 6: INVENTORIES

Inventories include raw materials, work-in-process, finished goods, and finished goods.materials and supplies.
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 30,
2017
 DECEMBER 31,
2016
MARCH 31,
2018
 DECEMBER 31,
2017
LIFO Inventories:




LIFO inventories:




Logs$5

$18
$19

$17
Lumber, plywood and panels44

51
Medium density fiberboard11

10
Lumber, plywood, panels and fiberboard76

66
Other products14
 10
16
 10
FIFO or moving average cost inventories:









Logs19

21
64

38
Lumber, plywood, panels and engineered wood products81

71
Lumber, plywood, panels, fiberboard and engineered wood products109

91
Other products81

92
77

77
Materials and supplies85

85
84

84
Total$340

$358
$445

$383

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 domesticU.S. 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,March 31, 2018, and $71$70 million as of December 31, 2016.2017.


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. SPECIAL-PURPOSE ENTITIES

The carrying amountFrom 2002 through 2004, we sold certain nonstrategic timberlands in five separate transactions. We are the primary beneficiary and consolidate the assets and liabilities of our investmentcertain monetization and buyer-sponsored Special-purpose entities (SPEs) involved 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 ofthese transactions. We have an 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 Operationsinterest in 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,monetization SPEs, but prior to the issuance of these financial statements, we announced the redemption of our 21 percentno 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 redemptionbuyer-sponsored SPEs. The long-term notes of our ownership interest. Effective December 31, 2017, we will also terminatemonetization SPEs and 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 acresfinancial investments of our timberlandsbuyer-sponsored SPEs include $209 million and $253 million scheduled to Twin Creeks for $203 million. The sale, which will include 80,000 acres of timberlandsmature in Mississippi and 20,000 acres in Georgia, is expected to close by the end of fourth quarter 2017.

Changes2018 and first quarter 2019, respectively. We have classified the long-term notes scheduled to mature in fourth quarter 2018 as current liabilities and the financial investments scheduled to mature in first quarter 2019 as current receivables on 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 Venture3
Balance at September 30, 2017$416

Consolidated Balance Sheet.


NOTE 8: PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

The components of net periodic benefit costs (credits) are:
PENSIONPENSION
QUARTER ENDED YEAR-TO-DATE ENDEDQUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Service cost(1)
$9
 $13
 $26
 $37
$10
 $10
Interest cost66
 70
 198
 207
60
 66
Expected return on plan assets(101) (125) (306) (371)(100) (102)
Amortization of actuarial loss48
 39
 145
 117
61
 55
Amortization of prior service cost1
 1
 3
 3
1
 1
Accelerated pension costs included in Plum Creek merger-related costs (Note 15)

 
 
 5
Total net periodic benefit cost (credit) - pension$23
 $(2) $66
 $(2)
Total net periodic benefit cost - pension$32
 $30

(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 BENEFITSOTHER POSTRETIREMENT BENEFITS
QUARTER ENDED YEAR-TO-DATE ENDEDQUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Interest cost$2
 $2
 $6
 $7
$2
 $2
Amortization of actuarial loss2
 2
 6
 6
2
 2
Amortization of prior service credit(2) (2) (6) (6)(2) (2)
Total net periodic benefit cost - other postretirement benefits$2
 $2
 $6
 $7
$2
 $2

On January 1, 2017, we adopted ASU 2017-07, which affects where componentsFor the periods presented, Service cost is included in "Cost of products sold," "Selling expenses," and "General and administrative expenses" and the remaining other items are included in "Non-operating pension and other postretirement costs are presented onbenefit costs." Refer to the Consolidated Statement of Operations. Refer to Note 1: Basis of Presentation for further information.



FAIR VALUE OF PENSION PLAN ASSETS AND OBLIGATIONOBLIGATIONS

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. DuringWe expect to complete the valuation of our pension plan assets during the 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, 2016.2018.

EXPECTED CONTRIBUTIONS AND BENEFIT PAYMENTS

In 20172018 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$4 million;
make benefit payments of $26$19 million for our U.S. nonqualified pension plans; and
make benefit payments of $21$19 million for our U.S. and Canadian other postretirement plans.

We do not anticipate makingbeing required to make a contribution to our U.S. qualified pension plans in 2017.2018.




NOTE 9: ACCRUED LIABILITIES

Accrued liabilities were comprised of the following:
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 30,
2017
 DECEMBER 31,
2016
MARCH 31,
2018
 DECEMBER 31,
2017
Wages, salaries and severance pay$132
 $178
Pension and other postretirement benefits48
 49
Vacation pay35
 33
Taxes – Social Security and real and personal property38
 20
Interest85
 120
Accrued income taxes$
 $19
Customer rebates and volume discounts46
 39
32
 48
Deferred income60
 40
31
 48
Accrued income taxes4
 139
Interest84
 111
Pension and other postretirement benefits40
 40
Product remediation accrual (Note 16)
179
 
43
 98
Taxes – Social Security and real and personal property27
 24
Vacation pay35
 33
Wages, salaries and severance pay86
 150
Other75
 74
79
 74
Total$702
 $692
$457
 $645


NOTE 10: LONG-TERM DEBT AND LINES OF CREDIT

During first quarter 2018, we paid our $62 million 7.00 percent debenture at maturity.

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$1.0 billion senior unsecured revolving credit facility that was set to expire September 2018. The entire amount is available to Weyerhaeuser Company. BorrowingsInterest on 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,March 31, 2018, 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.





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
MARCH 31,
2018
 DECEMBER 31,
2017
DOLLAR AMOUNTS IN MILLIONS
CARRYING 
VALUE
 
FAIR VALUE
(LEVEL 2)
 
CARRYING 
VALUE
 
FAIR VALUE
(LEVEL 2)
CARRYING 
VALUE
 
FAIR VALUE
(LEVEL 2)
 
CARRYING 
VALUE
 
FAIR VALUE
(LEVEL 2)
Long-term debt (including current maturities):       
Long-term debt (including current maturities)(1):
       
Fixed rate$5,771
 $6,872
 $6,061
 $6,925
$5,704
 $6,568
 $5,768
 $6,823
Variable rate224
 225
 549
 550
224
 225
 224
 225
Total Debt$5,995
 $7,097
 $6,610
 $7,475
Total debt$5,928
 $6,793
 $5,992
 $7,048

(1) Excludes nonrecourse debt held by our Variable Interest Entities (VIEs).

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, resultsConsolidated Balance Sheet, Consolidated Statement of operationsOperations, or cash flows.Consolidated Statement of 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 millshave been deemed potentially responsible parties as past or present owners or operators of facilities within the remediation site. site, or as arrangers under CERCLA.

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 oforder.

In 2010, 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 a certain area within the site. The trial has been concluded but a decision on cost contributionOn March 29, 2018, the U.S. District Court issued an opinion and allocation has not yet been renderedorder assigning the company responsibility for five percent of approximately $50 million in past costs incurred by the Court.plaintiffs. The remaining ninety-five percent of this pool of past costs incurred was allocated to the plaintiffs and other defendants.

The opinion and order does not establish allocation for future remediation costs, and accordingly, we may incur additional costs in connection with future remediation tasks for other areas of the site. In connection with the opinion and order, we have updated our assessment of the company’s reasonably possible estimated liability associated with the site and have recorded a pretax charge of $28 million in the first quarter as "Other operating costs, net" on the Consolidated Statement of Operations.

As of September 30, 2017,March 31, 2018, our total accrual for future estimated remediation costs on the active Superfund sites and other sites for which we are potentially responsible was approximately $46$72 million. These reservesamounts are recorded in "Accrued liabilities" (current) and "Other liabilities" (noncurrent) on our Consolidated Balance Sheet.



Asset Retirement Obligations

We have obligations associated with the future 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,March 31, 2018, our accrued balance for these obligations was $30$34 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 2016.2017.

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 chargecharges of $190$290 million and $240 million in the quarter and year-to-date period ended September 30, 2017, respectively, to accrue for remediation costs.costs in the year-to-date period ended December 31, 2017. We received insurance recoveries of $20 million during the quarter ended March 31, 2018. Refer to Note 16: Charges (Recoveries) for Product Remediation for further information.




NOTE 13: CUMULATIVEACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)LOSS

Changes in amounts included in our cumulativeaccumulated other comprehensive income (loss)loss by component are:
 PENSION OTHER POSTRETIREMENT BENEFITS   PENSION OTHER POSTRETIREMENT BENEFITS    
DOLLAR AMOUNTS IN MILLIONSForeign currency translation adjustmentsActuarial lossesPrior service costs Actuarial lossesPrior service creditsUnrealized gains on available-for-sale securitiesTotalForeign currency translation adjustments Actuarial lossPrior service cost Actuarial lossPrior service credit Unrealized gains on available-for-sale securities Total
Beginning balance as of December 31, 2016$232
$(1,651)$(9) $(67)$29
$7
$(1,459)
Beginning balance as of December 31, 2017$264
 $(1,802)$(8) $(48)$23
 $9
 $(1,562)
Other comprehensive income (loss) before reclassifications35
1
(3) 

2
35
(15) 10

 

 
 (5)
Income taxes
(10)1
 


(9)
 (2)
 

 
 (2)
Net other comprehensive income (loss) before reclassifications35
(9)(2) 

2
26
(15) 8

 

 
 (7)
Amounts reclassified from cumulative other comprehensive income (loss)(1)

145
3
 6
(6)
148
Amounts reclassified from accumulated other comprehensive loss(1)

 61
1
 2
(2) 
 62
Income taxes
(49)(1) (3)1

(52)
 (16)
 (1)
 
 (17)
Net amounts reclassified from cumulative other comprehensive income (loss)
96
2
 3
(5)
96
Net amounts reclassified from accumulated other comprehensive loss to earnings
 45
1
 1
(2) 
 45
Total other comprehensive income (loss)35
87

 3
(5)2
122
(15) 53
1
 1
(2) 
 38
Ending balance as of September 30, 2017$267
$(1,564)$(9) $(64)$24
$9
$(1,337)
Reclassification of certain tax affects due to tax law changes(2)

 (245)(1) (12)5
 
 (253)
Reclassification of accumulated unrealized gains on available-for-sale securities(3)

 

 

 (9) (9)
Net amounts reclassified from accumulated other comprehensive loss to retained earnings
 (245)(1) (12)5
 (9) (262)
Ending balance as of March 31, 2018$249
 $(1,994)$(8) $(59)$26
 $
 $(1,786)
(1) Actuarial losses and prior service credits (cost) are components of net periodic benefit costs (credits)
(1)
Amortization of actuarial loss and prior service (cost) credit are components of net periodic benefit cost (credit). See Note 8: Pension and Other Postretirement Benefit Plans.
(2)
We reclassified certain tax affects from tax law changes of $253 million from "Accumulated other comprehensive loss" to "Retained earnings" on our Consolidated Balance Sheet in accordance with ASU 2018-02. SeeNote 1: Basis of Presentation.
(3)
We reclassified accumulated unrealized gains from available-for-sale securities of $9 million from "Accumulated other comprehensive loss" to "Retained earnings" on our Consolidated Balance Sheet in accordance with ASU 2016-01. SeeNote 1: Basis of Presentation.


NOTE 14: SHARE-BASED COMPENSATION

Share-based compensation activity during year-to-date 2017in first quarter 2018 included the following:
SHARES IN THOUSANDSGranted VestedGranted Vested
Restricted Stock Units (RSUs)763
 710
673
 576
Performance Share Units (PSUs)348
 160
344
 110

A total of 4.51.5 million shares of common stock were issued as a result of RSU vesting,vestings, PSU vestingvestings and stock option exercises.

RESTRICTED STOCK UNITS

The weighted average fair value of the RSUs granted in 20172018 was $32.79.$34.14. The vesting provisions for RSUs granted in 20172018 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 20172018 was $37.93.$35.49.

The final number of shares granted in 20172018 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 20172018 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 20172018
Performance Share UnitsPerformance Share Units
Performance period1/1/2017 - 12/31/2019 1/1/2018
12/31/2020
Valuation date average stock price (1)
$32.79   $34.14
Expected dividends3.74%  3.81%
Risk-free rate0.68%1.55%1.75%2.34%
Expected volatility22.71%24.07%17.30%21.52%

(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 vestvested at “target” level performance of $100 per unit and will bewere paid out in thefull in 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.





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

QUARTER ENDED YEAR-TO-DATE ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 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 services5
 6
 10
 45
Other integration and restructuring costs1
 4
 4
 9
Total integration and restructuring charges related to our merger with Plum Creek6
 14
 20
 132
Charges related to closures and other restructuring activities:       
Termination benefits
 1
 2
 4
Other closures and restructuring costs2
 1
 3
 3
Total charges related to closures and other restructuring activities2
 2
 5
 7
Impairments of long-lived assets6
 
 153
 2
Total charges for integration and restructuring, closures and impairments$14
 $16
 $178
 $141

QUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSMARCH 2018 MARCH 2017
Integration and restructuring charges related to our merger with Plum Creek$
 $12
Charges related to closures and other restructuring activities1
 1
Impairments of long-lived assets1
 
Total charges for integration and restructuring, closures and asset impairments$2
 $13

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
Charges8
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 (RECOVERIES) FOR PRODUCT REMEDIATION

In July 2017, the companywe announced it waswe were 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 iswas isolated to Flak Jacket product manufactured after December 1, 2016, and does not affect any of the company’sour other products. The company also announced it will cover the cost to either remediate or replace affected joists. The company estimatesWe estimate that approximately 2,400homes arewere 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$290 million in the quarter and year-to-date period ended September 30,December 31, 2017, respectively, to accrue for expected costs associated with the remediation. During first quarter 2018, we received and recorded insurance recoveries of $20 million. The charges and recoveries are attributable to our Wood Products segment and were recorded in "Charges (recoveries) for product remediation," on the Consolidated Statement of Operations.

As of September 30, 2017, $61March 31, 2018, $247 million has been paid out in relation to our remediation efforts. The remaining accrual of $179$43 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. As of March 31, 2018, $20 million has been received and recorded for insurance however, as of the date of these financial statements no amounts related to potential recoveries have been recorded.recoveries.




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 ENDEDQUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 SEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Gain on disposition of non-strategic assets (1)
$(5) $(8) $(14) $(54)
Foreign exchange losses (gains), net (2)
(3) 1
 
 (11)
Gain on disposition of nonstrategic assets
$(2) $(7)
Foreign exchange losses, net2
 3
Litigation expense, net8
 2
 14
 23
5
 3
Other, net(1)(12) 2
 2
 (14)23
 3
Total other operating costs (income), net$(12) $(3) $2
 $(56)
Total other operating costs, net$28
 $2

(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.

(1) "Other, net" includes environmental remediation charges. See Note 12: Legal Proceedings, Commitments, and Contingencies for more information.

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 20172018 estimated annual effective tax rate for our TRSs is approximately 3424 percent, which is lowerhigher than the U.S. domestic statutory federal tax rate primarily due to lowerhigher foreign tax rates applicable to foreign earnings and state income taxes.

TAX LEGISLATION

On December 22, 2017, H.R. 1, commonly known as the Tax Cuts and Jobs Act (the "Tax Act"), was enacted. The Tax Act contains significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent. As a result of the reduction in the corporate tax rate, we revalued our deferred tax assets and liabilities and recorded a tax expense of $74 million during 2017, which reduced our net deferred tax asset. The deemed repatriation on deferred foreign income provisions does not impact our operations due to the fact that we have no foreign undistributed earnings.

The impact of the Tax Act provisions effective in 2018 is a reduction to our overall estimated annual effective tax rate primarily due to the reduced corporate tax rate.

During first quarter 2018, we adopted ASU 2018-02 which allows for the reclassification of certain income tax effects related to the Tax Act between accumulated other comprehensive income and retained earnings. Refer to Note 1: Basis of Presentation for further details on this ASU and the related impact on our financial statements.

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’sCreek'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.




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 content of these 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, particularly the relative value of the U.S. dollar to the yen and the Canadian dollar, and the relative value of the euro to the yen;
restrictions on international trade;trade, tariffs imposed on imports and the availability and cost of shipping and transportation; economic activity in Asia, especially Japan and China;
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 employee 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 20162017 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.





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,March 31, 2018, compared to the quarter and year-to-date period ended September 30, 2016.March 31, 2017.


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,quarter 2018, housing starts averaged 1.191.32 million total units on a seasonally adjusted annual basis according to the U.S. Census Bureau. Single family units accounted for 7067 percent of total housing starts 2017in first quarter. Multifamily starts rebounded from the decline posted in 2017. Single family starts are 6 percent higher on a 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 overago basis for the same period. This shift to the more wood intensive single family construction has been positive for wood product demand.quarter. We continue to expect improving U.S. housing starts and anticipate a level of approximately 1.211.30 million units in 2017, a 32018, an 8 percent increase compared to 2016.2017. We attribute this continued improvement primarily to employment growth, improving consumer confidence and historically lowfavorable mortgage rates.rates, remain near historic lows.
According to the Joint Center for Housing of Harvard University, the Leading Indicator of Remodeling Activity, (LIRA), has increased by 6.96.4 percent in first half of 2017 and is expected to average just under 6.77.5 percent year over year for 2017.2018.
U.S. wood product markets advanced in the first halfquarter of 2017,2018, 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 2017.2018. Consistent with this expectation, demand for logs increased with wood products production within our Western region. This coupled with higher market prices in thirdthe first quarter 2017 drove higher realizations within this region.realizations. In the South, log supplies kept pace with increased demand, leaving prices flat to slightly down year-to-date.increased from fourth quarter 2017.
Log inventories in Chinese ports have been stable through September 2017increased in the latter part of first quarter as reported by International Wood Markets China Bulletin. Log and lumber demand in China remain strongThe increased inventory level is attributed to a slow start to the construction season due to higher construction activity.the later occurrence of the Spring Festival and is expected to normalize over upcoming quarters. In Japan, wooden housing starts for January through August 2017and February are up 1down 1.7 percent from the same period last year.
We expect demand from China and Japan in 20172018 to be similar to modestly improved from demand experienced in 2016.2017.
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 (RLI) of the National Association of Realtors, prices and volumesthe dollar volume of rural properties, including timber, properties sold in 20162017 grew 54 percent over 2015 sales. Additionally,2016 sales of these types of properties are expected to growwhile per acre prices were up 3 percent on average. Additionally, RLI is optimistic that these trends will continue in 2017 when compared to 2016.2018.


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


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 ThirdFirst Quarter 2017 and Year-to-Date 20172018
QUARTER ENDED
AMOUNT OF
CHANGE

YEAR-TO-DATE ENDED
AMOUNT OF
CHANGE
QUARTER ENDED
AMOUNT OF
CHANGE
DOLLAR AMOUNTS IN MILLIONS, EXCEPT PER-SHARE FIGURESSEPTEMBER 2017 SEPTEMBER 2016
2017 VS.
2016

SEPTEMBER 2017
SEPTEMBER 2016
2017 VS. 
2016
MARCH 2018 MARCH 2017
2018 VS.
2017
Net sales$1,872
 $1,709
 $163
 $5,373
 $4,769
 $604
$1,865
 $1,693
 $172
Costs of products sold1,374
 1,328
 46
 3,982
 3,702
 280
1,348
 1,272
 76
Operating income205
 261
 (56) 655
 648
 7
404
 293
 111
Earnings from discontinued operations, net of tax
 65
 (65) 
 123
 (123)
Net earnings attributable to Weyerhaeuser common shareholders130
 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)
Net earnings269
 157
 112
Earnings per share, basic and diluted$0.35
 $0.21
 $0.14

Comparing ThirdFirst Quarter 20172018 with ThirdFirst Quarter 20162017

Net sales

Net sales increased $163$172 million – 10 percent – primarily attributable to the following factors:


Wood Products sales to unaffiliated customers increased $122$155 million – 1013 percent – primarily due to increased average sales realizations across allthe majority of 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$19 million – 14 percent – primarily attributable to an increase inincreased Western Timberlands averagelog sales realizations, for delivered logs. These increases were partially offset by decreased Southern average sales realizations and decreased Northern delivered log sales volumes.international operations revenue from the sale of our Uruguayan operations in third quarter 2017.
Costs of products sold

Costs of products sold increased $46$76 million – 36 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$79 million – 39 percent – primarily due to an increase inincreased log and manufacturingfiber 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 foracross all 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:


a $29 million increase in expense related to "Non-operating pension and other postretirement benefit (costs) credits" due to a decreaselines in the expected return on our plan assetsWest 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:Canada; and
Unallocated costs of product sold increased $18 million – 14 percent – primarily due to a decrease$15 million increase in "Interest expense, netcosts for elimination of capitalized interest" – $16 million.intersegment profit in inventory and LIFO. Refer to Interest ExpenseUnallocated Items 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.details.
"Earnings from discontinued operations, netIncreased costs of tax," decreased $65products sold was partially offset by a $26 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 millionincrease – 13 percent – primarily attributablein Timberland intersegment sales which are eliminated upon consolidation. Refer 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.



for further details.
Operating income

Operating income increased $7$111 million – 138 percent – primarily attributable to to:
increased consolidated gross margin of $96 million as described above,above;
increased product remediation insurance recoveries of $20 million received in first quarter of 2018; and
decreased "Generalgeneral 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 expenseexpenses and integration costs related to the merger of Plum Creek for $20 million.
Increased operating income was partially offset by $28 million increased environmental charges in first quarter 2018. Refer to Note 17: Other Operating Costs, Net, "Other, operating costs (income), net." This is primarily due to:net" for further details.
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 $143increased $112 million – 3171 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 consolidatedincreased operating income, as a wholly-owned subsidiary.
These decreases were partially offset by:


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 MILLIONSSEPTEMBER 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
South155
 160
 (5) 451
 415
 36
North25
 29
 (4) 68
 61
 7
Other17
 11
 6
 48
 25
 23
Subtotal delivered logs sales418
 417
 1
 1,240
 1,165
 75
Stumpage and pay-as-cut timber23
 24
 (1) 52
 62
 (10)
Uruguay operations(2)
23
 21
 2
 63
 58
 5
Recreational and other lease revenue16
 15
 1
 45
 29
 16
Other11
 7
 4
 46
 28
 18
Subtotal net sales to unaffiliated customers491
 484
 7
 1,446
 1,342
 104
Intersegment sales:           
United States125
 149
 (24) 381
 446
 (65)
Other54
 67
 (13) 163
 185
 (22)
Subtotal intersegment sales179
 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.


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 explaineddescribed 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.





TIMBERLANDS

THIRD-PARTY LOG SALES VOLUMES AND FEE HARVEST VOLUMESHow We Did First Quarter 2018
QUARTER ENDED 
AMOUNT OF
CHANGE
 YEAR-TO-DATE ENDED AMOUNT OF CHANGEQUARTER 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:           
DOLLAR AMOUNTS IN MILLIONSMARCH 2018 MARCH 2017 2018 VS.
2017
Net sales to unaffiliated customers:     
Delivered logs(1):
     
West1,910
 2,209
 (299) 6,210
 6,705
 (495)$266
 $225
 $41
South4,527
 4,538
 (11) 13,105
 11,659
 1,446
157
 148
 9
North428
 503
 (75) 1,135
 1,005
 130
25
 27
 (2)
Other424
 263
 161
 1,226
 601
 625
14
 20
 (6)
Total (3)
7,289
 7,513
 (224) 21,676
 19,970
 1,706
Fee harvest volumes – tons:           
West2,230
 2,744
 (514) 7,539
 8,525
 (986)
South6,953
 6,992
 (39) 19,799
 19,083
 716
North565
 678
 (113) 1,570
 1,392
 178
Subtotal delivered logs sales462
 420
 42
Stumpage and pay-as-cut timber15
 12
 3
Uruguay operations(2)

 19
 (19)
Recreational and other lease revenue14
 14
 
Other569
 191
 378
 1,384
 372
 1,012
14
 21
 (7)
Total (3)
10,317
 10,605
 (288) 30,292
 29,372
 920
Subtotal net sales to unaffiliated customers505
 486
 19
Intersegment sales:     
United States142
 130
 12
Other86
 72
 14
Subtotal intersegment sales228
 202
 26
Total sales$733
 $688
 $45
Costs of products sold$526
 $519
 $7
Operating income and Net contribution to earnings$189
 $148
 $41

(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 ofmanaged Twin Creeks Venture. Our management agreement for the Twin Creeks Venture that we manage.began in April 2016 and was terminated in December 2017.
(2)
Includes logs, plywood and hardwood lumber harvested or produced by our former international operations in Uruguay. Our Uruguayan operations were divested on September 1, 2017. Refer to Note 4: Operations Divested for further information.

Comparing First Quarter 2018 with First Quarter 2017

Net sales to unaffiliated customers

Net sales to unaffiliated customers increased $19 million – 4 percent – primarily due to a $41 million increase in Western log sales attributable to a 26% increase in Western log prices, partially offset by a 6% decrease in Western delivered logs sales volumes.
This increase was partially offset by a $19 million decrease in sales from our Uruguay operations, which were divested in third quarter 2017.
Intersegment sales
Intersegment sales increased $26 million – 13 percent – primarily due to increases in Western log prices, consistent with third party sales discussed above.

Costs of products sold

Costs of products sold increased $7 million – 1 percent – primarily due to increased external sourcing costs to meet increased demand for export sales. The increase was partially offset by a decrease in our international cost of products sold due to the divestiture of our Uruguayan operations in third quarter 2017.

Operating income and Net contribution to earnings

Operating income and Net contribution to earnings increased $41 million – 28 percent – primarily attributable to increased gross margin discussed above.


THIRD-PARTY LOG SALES VOLUMES AND FEE HARVEST VOLUMES
 QUARTER ENDED 
AMOUNT OF
CHANGE
VOLUMES IN THOUSANDS (1)(2)
MARCH 2018 MARCH 2017 2018 VS.
2017
Third party log sales – tons:     
West2,019
 2,157
 (138)
South4,510
 4,293
 217
North404
 454
 (50)
Other317
 510
 (193)
Total (3)
7,250
 7,414
 (164)
Fee harvest volumes – tons:     
West2,443
 2,657
 (214)
South6,751
 6,373
 378
North549
 622
 (73)
Other
 371
 (371)
Total (3)
9,743
 10,023
 (280)

(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 managed Twin Creeks Venture. Our management agreement for the Twin Creeks Venture began in April 2016 and terminated in December 2017.
(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 former Uruguayan operations, which we sold during third quarter 2017. Refer to Note 3: Discontinued4: Operations and Other DivestituresDivested for further information regarding this sale.


REAL ESTATE, ENERGY AND NATURAL RESOURCES

How We Did ThirdFirst Quarter 2017 and Year-to-Date 20172018
QUARTER ENDED 
AMOUNT OF
CHANGE
 YEAR-TO-DATE ENDED AMOUNT OF CHANGEQUARTER ENDED 
AMOUNT OF
CHANGE
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 2017 VS.
2016
 SEPTEMBER 2017 SEPTEMBER 2016 2017 VS. 
2016
MARCH 2018 MARCH 2017 2018 VS.
2017
Net sales to unaffiliated buyers:           
Net sales:     
Real estate$64
 $31
 $33
 128
 87
 41
$34
 $37
 $(3)
Energy and natural resources18
 17
 1
 53
 38
 15
17
 16
 1
Total$82
 $48
 $34
 $181
 $125
 $56
$51
 $53
 $(2)
Costs of products sold$31
 $26
 $5
 $67
 $65
 $2
$19
 $20
 $(1)
Operating income$46
 $14
 $32
 $95
 $41
 $54
Equity earnings from joint venture1
 1
 
 1
 1
 
Net contribution to earnings$47
 $15
 $32
 $96
 $42
 $54
Operating income and net contribution to earnings$25
 $26
 $(1)

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).funding. In any period the average sales price per acre will vary based on the location and physical characteristics of parcels sold.

Comparing ThirdFirst Quarter 20172018 with ThirdFirst Quarter 20162017

Net sales - Unaffiliated buyers

Net sales to unaffiliated buyers increased $34decreased $2 million – 714 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.


acre due to mix of properties sold offset by an increase in acres sold.

Costs of products sold
Costs of products sold increased $5decreased $1 million – 195 percent – primarily attributable to higher sales volumes and higher basismix of real estate sold.properties sold in first quarter 2018 as compared to first quarter 2017, as discussed above.



Net contribution to earnings

Net contribution to earnings for the quarter increased $32decreased $1 million – 2134 percent – primarily attributable to increaseddecreased 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 explaineddiscussed above.

REAL ESTATE SALES STATISTICS
QUARTER ENDED 
AMOUNT OF
CHANGE
 YEAR-TO-DATE ENDED AMOUNT OF CHANGEQUARTER ENDED 
AMOUNT OF
CHANGE
SEPTEMBER 2017 SEPTEMBER 2016 2017 VS.
2016
 SEPTEMBER 2017 SEPTEMBER 2016 2017 VS. 
2016
MARCH 2018 MARCH 2017 2018 VS.
2017
Acres sold35,749
 12,853
 22,896
 59,009
 38,098
 20,911
21,771
 13,257
 8,514
Average price per acre$1,784
 $2,354
 $(570) $2,081
 $2,271
 $(190)$1,539
 $2,403
 $(864)


WOOD PRODUCTS

How We Did ThirdFirst Quarter 2017 and Year-to-Date 20172018
QUARTER ENDED 
AMOUNT OF
CHANGE
 YEAR-TO-DATE ENDED AMOUNT OF CHANGEQUARTER ENDED 
AMOUNT OF
CHANGE
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 2017 VS.
2016
 SEPTEMBER 2017 SEPTEMBER 2016 2017 VS. 
2016
MARCH 2018 MARCH 2017 2018 VS.
2017
Net sales:                
Structural lumber$525
 $495
 $30
 $1,541
 $1,412
 $129
$569
 $478
 $91
Engineered solid section131
 119
 12
 378
 343
 35
129
 117
 12
Engineered I-joists93
 79
 14
 251
 218
 33
78
 73
 5
Oriented strand board243
 199
 44
 671
 544
 127
232
 203
 29
Softwood plywood45
 48
 (3) 136
 133
 3
50
 44
 6
Medium density fiberboard48
 49
 (1) 146
 113
 33
43
 47
 (4)
Other products produced68
 51
 17
 206
 143
 63
71
 70
 1
Complementary building products146
 137
 9
 417
 397
 20
137
 122
 15
Total$1,299
 $1,177
 $122
 $3,746

$3,303
 $443
$1,309
 $1,154
 $155
Costs of products sold$1,005
 $980
 $25
 $2,933
 $2,799
 $134
$1,005
 $926
 $79
Operating income and Net contribution to earnings$40
 $170
 $(130) $389
 $413
 $(24)$270
 $172
 $98

Comparing ThirdFirst Quarter 20172018 with ThirdFirst Quarter 20162017

Net sales

Net sales increased $122$155 million – 1013 percent – primarily due to:
a $91 million increase in structural lumber sales, attributable to a 21% percent increase in average sales realizations, partially offset by a 2% percent decrease in sales volumes;
a$44 $29 million increase in oriented strand board sales, attributable to a 28 percent19% increase in average sales realizations, partially offset by a 5 percent4% decrease in sales volumes.
volumes;
a $30$15 million increase in structural lumbercomplementary building product sales. These are other products sold by our distribution business and correlated to the general market demand, which was higher in first quarter 2018 as compared to first quarter 2017;
a $12 million increase in engineered solid section sales, primarily attributable to an 11% increase in average sales realizations; and
a $6 million increase in softwood plywood sales, attributable to a 12 percent16% increase in average sales realizations, partially offset by a 5 percent3% 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$79 million – 39 percent – primarily due to an increase inincreased log and manufacturingfiber costs offset by a decreaseacross all product lines in sales volume.the West and Canada.
 
Operating income and Net contribution to earnings

Operating income and Net contribution to earnings decreased $130increased $98 million – 7657 percent – primarily attributable to:
increased gross margin, as discussed above; and


increased "Charges for product remediation" – $190 million. Referremediation recoveries of $20 million in first quarter 2018 compared to first quarter 2017 (please see Note 16: Charges (recoveries) for Product Remediationproduct 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.details).

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.



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 CHANGEQUARTER ENDED 
AMOUNT OF
CHANGE
VOLUMES IN MILLIONS(1)
SEPTEMBER 2017 SEPTEMBER 2016 2017 VS.
2016
 SEPTEMBER 2017 SEPTEMBER 2016 2017 VS. 
2016
MARCH 2018 MARCH 2017 2018 VS.
2017
Structural lumber – board feet1,172
 1,233
 (61) 3,548
 3,634
 (86)1,140
 1,158
 (18)
Engineered solid section – cubic feet6.4
 6.2
 0.2
 19.2
 17.7
 1.5
6.2
 6.2
 
Engineered I-joists – lineal feet60
 53
 7
 166
 147
 19
49
 49
 
Oriented strand board – square feet (3/8”)741
 776
 (35) 2,274
 2,296
 (22)739
 769
 (30)
Softwood plywood – square feet (3/8”)117
 127
 (10) 358
 368
 (10)115
 118
 (3)
Medium density fiberboard – square feet (3/4”)58
 64
 (6) 177
 147
 30
51
 59
 (8)
(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.


QUARTER ENDED 
AMOUNT OF
CHANGE
 YEAR-TO-DATE ENDED AMOUNT OF CHANGEQUARTER ENDED 
AMOUNT OF
CHANGE
VOLUMES IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 2017 VS.
2016
 SEPTEMBER 2017 SEPTEMBER 2016 2017 VS. 
2016
MARCH 2018 MARCH 2017 2018 VS.
2017
Structural lumber – board feet:                
Production1,093
 1,130
 (37) 3,391
 3,464
 (73)1,160
 1,152
 8
Outside purchase52
 65
 (13) 152
 193
 (41)47
 49
 (2)
Total1,145
 1,195
 (50) 3,543
 3,657
 (114)1,207
 1,201
 6
Engineered solid section – cubic feet:                
Production6.4
 5.7
 0.7
 19.3
 17.2
 2.1
6.3
 6.3
 
Outside purchase0.4
 
 0.4
 1.4
 
 1.4
1.0
 
 1.0
Total6.8
 5.7
 1.1
 20.7
 17.2
 3.5
7.3
 6.3
 1.0
Engineered I-joists – lineal feet:                
Production58
 49
 9
 161
 141
 20
56
 50
 6
Outside purchase6
 3
 3
 12
 7
 5
3
 2
 1
Total64
 52
 12
 173
 148
 25
59
 52
 7
Oriented strand board – square feet (3/8”):                
Production744
 777
 (33) 2,256
 2,259
 (3)734
 758
 (24)
Outside purchase105
 102
 3
 309
 261
 48
100
 98
 2
Total849
 879
 (30) 2,565
 2,520
 45
834
 856
 (22)
Softwood plywood – square feet (3/8”):                
Production88
 105
 (17) 284
 304
 (20)97
 97
 
Outside purchase21
 22
 (1) 62
 66
 (4)20
 19
 1
Total109
 127
 (18) 346
 370
 (24)117
 116
 1
Medium density fiberboard – square feet (3/4"):Medium density fiberboard – square feet (3/4"):        Medium density fiberboard – square feet (3/4"):  
Production63
 68
 (5) 182
 155
 27
50
 56
 (6)
Outside purchase
 
 
 
 
 

 
 
Total63
 68
 (5) 182
 155
 27
50
 56
 (6)


UNALLOCATED ITEMS

Unallocated itemsItems are gains or charges from continuing operations not related to or allocated to an individual operating segment. They include a portion of items such as: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. 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.LIFO.



NET CONTRIBUTION TO EARNINGS – UNALLOCATED ITEMS
  QUARTER ENDED 
AMOUNT OF
CHANGE
 YEAR-TO-DATE ENDED AMOUNT OF CHANGE
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 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 LIFO3
 2
 1
 (6) (6) 
Gains on sales of non-strategic assets4
 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
Other5
 (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 other11
 15
 (4) 29
 34
 (5)
Net contribution to earnings$(17) $(9) $(8) $(113) $(91) $(22)
  QUARTER ENDED 
AMOUNT OF
CHANGE
DOLLAR AMOUNTS IN MILLIONSMARCH 2018 MARCH 2017 2018 VS.
2017
Unallocated corporate function and variable compensation expense$(18) $(19) $1
Liability classified share-based compensation
 (6) 6
Foreign exchange losses(2) (3) 1
Elimination of intersegment profit in inventory and LIFO(21) (6) (15)
Charges for integration and restructuring, closures and asset impairments
 (12) 12
Other(39) (7) (32)
Operating income (loss)(80) (53) (27)
Non-operating pension and other postretirement benefit costs(24) (22) (2)
Interest income and other12
 9
 3
Net contribution to earnings$(92) $(66) $(26)
(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 ThirdFirst Quarter 20172018 with ThirdFirst 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:
a $28 million increase in charges for "Other," due to environmental remediation charges recorded in first quarter 2018 (refer to Note 12: Legal Proceedings, Commitments and Contingencies);
a $15 million increase in charges for "Elimination of intersegment profit in inventory and LIFO" due to an increase in intercompany lumber and log inventories from first quarter 2017 to first quarter 2018; and
a $12 million decrease in charges related to our merger with Plum Creek decreased $112 million. Refercompared to first quarter 2017 (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.details).





INTEREST EXPENSE

Our interest expense, net of capitalized interest incurred was:
$9893 million for the thirdfirst quarter 2017 and $297 million for year-to-date 2017;2018 and
$11499 million for the thirdfirst quarter 2016 and $323 million for year-to-date 2016.2017.

Interest expense decreased $16by $6 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 fourth2018 compared to first quarter 2016. As such, only the results for 2016 included interest incurred on these loans.2017.


INCOME TAXES

Our provision for income taxes for our continuing operations was:
$(27)30 million for the thirdfirst quarter 2017 and $31 million year-to-date 2017;2018 and
$2224 million for the thirdfirst quarter 2016 and $64 million year-to-date 2016.2017.

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

The Tax Act, enacted in December 2017, reduced the U.S. corporate tax rate from 35 percent to 21 percent. In first quarter 2018, our provision for income taxes was higher compared to first quarter 2017 due to increased earnings in our TRS. The tax impact of the increased earnings more than offset the benefit of the reduced U.S. corporate tax rate.

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:
to protect the interests of our shareholders and lenders;lenders and
maintain access to all major financial markets.

CASH FROM OPERATIONS



Consolidated net cash provided by ourfrom operations was:
$847136 million for year-to-date 2017;first quarter 2018; and
$88635 million for year-to-date 2016.first quarter 2017.

Comparing Year-to-Datefirst quarter 2018 with first quarter 2017 with Year-to-Date 2016

Net cash provided by ourfrom operations decreased $39increased $101 million, primarily due to:
decreased operatingincreased cash flows generated from discontinued operationsour business segments, excluding working capital changes, of $192 million and$103 million;
an increase indecreased cash paid for income taxes of $155 million.$42 million;
product remediation insurance recoveries received of $20 million in first quarter 2018;
decreased working capital used for accrued wages, salaries, and severance pay of $17 million; and
decreased cash paid for interest of $15 million; and

These decreasesincreases were partially offset by increased cash flowsa net increase in working capital from our business segments of $347$126 million. See Performance Measures for our Adjusted EBITDA by segment.

CASH FROM INVESTING ACTIVITIES

Consolidated net cash provided byused in investing activities was:
$19276 million for year-to-date 2017;first quarter 2018; and
$59168 million for year-to-date 2016.first quarter 2017.

Comparing Year-to-Datefirst quarter 2018 with first quarter 2017 with Year-to-Date 2016

Net cash fromused in investing activities decreased $399increased $8 million, primarily due to the following non-recurring cash inflows that occurredto:
a $6 million decrease 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 businessnon-strategic assets; and
a $6 million increase 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.



cash used for capital expenditures.

Summary of Capital Spending by Business Segment
YEAR-TO-DATE ENDEDQUARTER ENDED
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016MARCH 2018 MARCH 2017
Timberlands$79
 $77
$28
 $30
Real Estate & ENR2
 1

 
Wood Products176
 152
52
 44
Unallocated Items2
 10
1
 1
Discontinued operations
 63
Total$259
 $303
$81
 $75

We expect our net capital expenditures for 20172018 to be $435$420 million, which is comparable to 20162017 capital spending for continuing operations.spending. 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.change.

CASH FROM FINANCING ACTIVITIES

Consolidated net cash used in financing activities was:
$1,218286 million for year-to-date 2017;first quarter 2018 and
$1,710188 million for year-to-date 2016.first quarter 2017.

Comparing Year-to-Datefirst quarter 2018 with first quarter 2017 with Year-to-Date 2016

Net cash used in financing activities decreased $492increased $98 million primarily due to the following:
a $2.0 billion decreasean increase of $62 million 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,used for payments of long-term debt increased by $108debt; and
a decrease of $30 million in year-to-date 2017.proceeds from exercises of stock options.

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,March 31, 2018, there were no borrowings outstanding.

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



Long-term Debt

During first quarter 2018, we paid our $62 million 7.00 percent debenture at maturity.

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

Debt Covenants

As of September 30, 2017,March 31, 2018, Weyerhaeuser Company was in compliance with its debt covenants. There have been no significant changes during thirdfirst quarter 20172018 to the debt covenants presented in our 20162017 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.



Option Exercises

We received cash proceeds from the exercise of stock options of:
$8925 million in 2017;first quarter 2018 and
$4855 million in 2016.first quarter 2017.

Our average stock price was $33.01$35.29 and $29.74$32.53 for year-to-datefirst quarter 2018 and first quarter 2017, and 2016, respectively.

Paying Dividends and Repurchasing StockShares

We paid cash dividends on common shares of:
$699242 million in 2017;first quarter 2018 and
$700233 million in 2016.first quarter 2017.

The slight decreaseincrease in dividends paid is primarily due to decreased common shares outstanding at thean increase in our quarterly dividend record dates.from 31 cents per share to 32 cents per share in November 2017.

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 thirdfirst quarter 2017,2018, we did not repurchase any shares. As of September 30, 2017,March 31, 2018, we had remaining authorization of $500 million for future stockshare repurchases.

WeIf a repurchase were to occur, we would record share repurchases upon the trade date as opposed to the settlement date when cash is disbursed. We would record a liability for repurchases that havehad not yet been cash settled. There were no unsettled repurchases as of September 30, 2017.March 31, 2018.


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 CHANGEQUARTER ENDED 
AMOUNT OF
CHANGE
DOLLAR AMOUNTS IN MILLIONSSEPTEMBER 2017 SEPTEMBER 2016 2017 VS.
2016
 SEPTEMBER 2017 SEPTEMBER 2016 2017 VS. 
2016
MARCH 2018 MARCH 2017 2018 VS.
2017
Adjusted EBITDA by Segment:                
Timberlands$220
 $223
 $(3) $684
 $642
 $42
$268
 $242
 $26
Real Estate & ENR74
 37
 37
 154
 99
 55
41
 43
 (2)
Wood Products278
 203
 75
 759
 509
 250
286
 207
 79
572
 463
 109
 1,597
 1,250
 347
595
 492
 103
Unallocated Items(3) (29) 26
 (68) (67) (1)(51) (38) (13)
Adjusted EBITDA$569
 $434
 $135
 $1,529
 $1,183
 $346
$544
 $454
 $90



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:March 31, 2018:
DOLLAR AMOUNTS IN MILLIONSTimberlands Real Estate & ENR Wood Products Unallocated Items TotalTimberlands Real Estate & ENR Wood Products Unallocated Items Total
Adjusted EBITDA by Segment:                  
Net earnings        $130
        $269
Earnings from discontinued operations, net of income taxes        
Interest expense, net of capitalized interest        98
        93
Income taxes        (27)        30
Net contribution to earnings$131
 $47
 $40
 $(17) $201
$189
 $25
 $270
 $(92) $392
Equity earnings from joint ventures
 (1) 
 
 (1)
Non-operating pension and other postretirement benefit costs (credits)
 
 
 16
 16
Non-operating pension and other postretirement benefit cost
 
 
 24
 24
Interest income and other
 
 
 (11) (11)
 
 
 (12) (12)
Operating income (loss)131
 46
 40
 (12) 205
189
 25
 270
 (80) 404
Depreciation, depletion and amortization89
 4
 37
 2
 132
79
 4
 36
 1
 120
Basis of real estate sold
 24
 
 
 24

 12
 
 
 12
Unallocated pension service costs
 
 
 1
 1

 
 
 
 
Special items(1)(2)

 
 201
 6
 207
Special items(1) (2)

 
 (20) 28
 8
Adjusted EBITDA$220
 $74
 $278
 $(3) $569
$268
 $41
 $286
 $(51) $544

(1)Special items attributable toin Wood Products includes: $190include $20 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.insurance recoveries.

(2)Special items attributable to Unallocated Items include $6$28 million of Plum Creek merger-related costs.environmental remediation charges.


The table below reconciles Adjusted EBITDA for the quarter ended September 30, 2016:March 31, 2017:
DOLLAR AMOUNTS IN MILLIONSTimberlands Real Estate & ENR Wood Products Unallocated Items TotalTimberlands Real Estate & ENR Wood Products Unallocated Items Total
Adjusted EBITDA by Segment:                  
Net earnings        $227
        $157
Earnings from discontinued operations, net of income taxes        (65)
Interest expense, net of capitalized interest        114
        99
Income taxes        22
        24
Net contribution to earnings$122
 $15
 $170
 $(9) $298
$148
 $26
 $172
 $(66) $280
Equity earnings from joint ventures
 (1) 
 (8) (9)
Non-operating pension and other postretirement benefit costs (credits)
 
 
 (13) (13)
Non-operating pension and other postretirement benefit cost
 
 
 22
 22
Interest income and other
 
 
 (15) (15)
 
 
 (9) (9)
Operating income (loss)122
 14
 170
 (45) 261
148
 26
 172
 (53) 293
Depreciation, depletion and amortization101
 4
 33
 
 138
94
 3
 35
 1
 133
Basis of real estate sold
 19
 
 
 19

 14
 
 
 14
Unallocated pension service costs
 
 
 2
 2

 
 
 2
 2
Special items(1)

 
 
 14
 14

 
 
 12
 12
Adjusted EBITDA$223
 $37
 $203
 $(29) $434
$242
 $43
 $207
 $(38) $454

(1)Special items include $14include: $12 million of Plum Creek merger-related costs.




The table below reconciles Adjusted EBITDA for the year-to-date period ended September 30, 2017:
DOLLAR AMOUNTS IN MILLIONSTimberlands 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 amortization270
 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 MILLIONSTimberlands 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 amortization266
 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 thirdfirst quarter 20172018 to our critical accounting policies presented in our 20162017 Annual Report on Form 10-K.



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;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, 2017MARCH 31, 2018
DOLLAR AMOUNTS IN MILLIONSDOLLAR AMOUNTS IN MILLIONS DOLLAR AMOUNTS IN MILLIONS 
20172018201920202021THEREAFTERTOTALFAIR VALUE20182019202020212022THEREAFTERTOTALFAIR VALUE
Fixed-rate debt (1)(2)
$
$62
$500
$
$719
$4,450
$5,731
$6,872
$
$500
$
$719
$
$4,450
$5,669
$6,568
Average interest rate%7.00%7.38%%5.56%6.38%6.37%N/A
%7.38%%5.57%%6.38%6.36%N/A
Variable-rate debt (1)(2)
$
$
$
$
$
$225
$225
$225
$
$
$
$
$
$224
$224
$225
Average interest rate%%%%%2.84%2.84%N/A
%%%%%3.48%3.48%N/A

(1) Excludes $39
(1)Excludes $35 million of unamortized discounts, capitalized debt expense and fair value step-up (related to Plum Creek merger).
(2)
Does not include nonrecourse debt held by our Variable Interest Entities (VIEs). See Note 7: Special-Purpose Entities in the Notes to Consolidated Financial Statements for further information on our VIEs and the related nonrecourse debt.

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,March 31, 2018, 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, noNo changes occurred in the company’s internal control over financial reporting during thirdfirst quarter 20172018 that have materially affected, or are reasonably likely to materially affect, the company’s internal control over financial reporting.

LEGAL PROCEEDINGS


RISK FACTORS

There have been no material changes with respect to the risk factors disclosed in our 20162017 Annual Report on Form 10-K.

UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

There have been no share repurchases during the thirdfirst quarter and year-to-date 2017.2018.

DEFAULTS UPON SENIOR SECURITIES

None.

MINE SAFETY DISCLOSURES

Not applicable.

OTHER INFORMATION



None.


EXHIBITS
  
  
100.INSXBRL Instance Document
  
100.SCHXBRL Taxonomy Extension Schema Document
  
100.CALXBRL Taxonomy Extension Calculation Linkbase Document
  
100.DEFXBRL Taxonomy Extension Definition Linkbase Document
  
100.LABXBRL Taxonomy Extension Label Linkbase Document
  
100.PREXBRL Taxonomy Extension Presentation Linkbase Document





Signature

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

 WEYERHAEUSER COMPANY
 Date:OctoberApril 27, 20172018
   
 By:/s/ Jeanne M. Hillman
  Jeanne M. Hillman
  Vice President and Chief Accounting Officer
(Principal Accounting Officer)



3831