SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 11-K ANNUAL REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 (Mark one) X Annual Report pursuant to 15(d) of the Securities Exchange Act of 1934 ---- (Fee required) For the fiscal year ended December 31, 2002. OR Transition report pursuant to Section 15(d) of the Securities Exchange Act ---- of 1934 (No fee required) For the transition period from to --------------- ------------- Commission file number 1-8864. A. Full title of the Plan: USG CORPORATION INVESTMENT PLAN (Formerly USG CORPORATION INVESTMENT PLAN FOR SALARIED EMPLOYEES) B. Name of the issuer of the securities held pursuant to the plan and the address of its principal executive office: USG CORPORATION, 125 SOUTH FRANKLIN STREET, CHICAGO, ILLINOIS 60606 REQUIRED INFORMATION Financial Statements: -------------------- Plan financial statements and schedules prepared in accordance with the financial reporting requirements of ERISA attached hereto, including a Consent of Independent Public Auditors with respect to Form S-8 for 2002. Pursuant to the requirements of the Securities and Exchange Act of 1934, the members of the Pension and Investment Committee administering the Plan have duly caused this annual report to be signed by the undersigned thereunto duly authorized. USG CORPORATION INVESTMENT PLAN By: /s/ Peter K. Maitland ----------------------------- Peter K. Maitland Vice President, Compensation, Benefits and Administration Date: March 27, 2003 USG CORPORATION INVESTMENT PLAN REPORT ON AUDITED FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULES YEARS ENDED DECEMBER 31, 2002 AND 2001 TABLE OF CONTENTS PAGE ---- INDEPENDENT AUDITORS' REPORT 1 FINANCIAL STATEMENTS: Statements of Net Assets Available for Benefits 2 Statements of Changes in Net Assets Available for Benefits 3 Notes to Financial Statements 4 SUPPLEMENTAL SCHEDULES: I. Schedule of Investments Held at Year End 11 II. Schedule of Reportable Transactions 12 MEMBER OF THE MEMBER OF THE ILLINOIS CPA AMERICAN INSTITUTE SOCIETY OF CERTIFIED PUBLIC ACCOUNTANTS HILL, TAYLOR LLC CERTIFIED PUBLIC ACCOUNTANTS 116 South Michigan Avenue - 11th Floor Chicago, Illinois 60603 312-332-4964 Fax: 312-332-0181 INDEPENDENT AUDITORS' REPORT PENSION AND INVESTMENT COMMITTEE USG CORPORATION We have audited the accompanying statements of net assets available for benefits of the USG Corporation Investment Plan as of December 31, 2002 and 2001, and the related statements of changes in net assets available for benefits for the years then ended. These financial statements are the responsibility of the Plan's management. Our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits in accordance with auditing standards generally accepted in the United States of America. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates made by management as well as evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. In our opinion, the financial statements referred to above present fairly, in all material respects, the net assets available for benefits of the Plan as of December 31, 2002 and 2001, and the changes in net assets available for benefits for the years then ended in conformity with accounting principles generally accepted in the United States of America. Our audits were performed for the purpose of forming an opinion on the basic financial statements taken as a whole. The supplemental schedules of investments held at year end as of December 31, 2002, and reportable transactions for the year ended December 31, 2002, are presented for the purpose of additional analysis and are not a required part of the basic financial statements but are supplementary information required by the Department of Labor's Rules and Regulations for Reporting and Disclosure under the Employee Retirement Income Security Act of 1974. These supplemental schedules are the responsibility of the Plan's management. The supplemental schedules have been subjected to the auditing procedures applied in the audits of the basic financial statements and, in our opinion, are fairly stated in all material respects in relation to the basic financial statements taken as a whole. March 14, 2003 USG CORPORATION INVESTMENT PLAN STATEMENTS OF NET ASSETS AVAILABLE FOR BENEFITS DECEMBER 31, 2002 AND 2001 2002 2001 ------------ ------------ ASSETS: Investments, at market $336,413,983 $337,667,612 ------------ ------------ Receivables: Employee loans Receivable 25,110,551 22,416,796 Employer contributions Receivable 20,755,665 --- Interest and Dividends receivable 71,643 66,182 ------------ ------------ Total Receivables 45,937,859 22,482,978 ------------ ------------ Total Assets 382,351,842 360,150,590 ------------ ------------ LIABILITIES: Accrued administrative Fees 177,595 186,813 ------------ ------------ Total Liabilities 177,595 186,813 ------------ ------------ NET ASSETS AVAILABLE FOR BENEFITS $382,174,247 $359,963,777 ============ ============ The accompanying notes to financial statements are an integral part of these statements. - 2 - USG CORPORATION INVESTMENT PLAN STATEMENTS OF CHANGES IN NET ASSETS AVAILABLE FOR BENEFITS YEARS ENDED DECEMBER 31, 2002 AND 2001 2002 2001 ------------- ------------- NET ASSETS AVAILABLE FOR BENEFITS, beginning of year $ 359,963,777 $ 394,376,344 ------------- ------------- ADD (DEDUCT): Corporation contributions 32,239,836 8,478,636 Employee contributions 31,793,149 30,681,531 ------------- ------------- 64,032,985 39,160,167 ------------- ------------- Income from investments: Dividend income 1,723,247 1,625,064 Interest income 11,553,884 12,142,488 Realized gain (loss) on sale of investments (9,911,879) (7,970,701) Unrealized depreciation for the year (21,497,946) (30,047,663) ------------- ------------- (18,132,694) (24,250,812) ------------- ------------- Benefit payments and participant withdrawals (22,503,535) (48,470,451) Net transactions due to loans (11,911) 133,086 Administrative expenses (1,174,375) (984,557) ------------- ------------- Net increase (decrease) in assets during the year 22,210,470 (34,412,567) ------------- ------------- NET ASSETS AVAILABLE FOR BENEFITS, end of year $ 382,174,247 $ 359,963,777 ============= ============= The accompanying notes to financial statements are an integral part of these statements. - 3 - USG CORPORATION INVESTMENT PLAN NOTES TO FINANCIAL STATEMENTS DECEMBER 31, 2002 AND 2001 1. DESCRIPTION OF THE PLAN The USG Corporation Investment Plan, also known as the USG Corporation Investment Plan for Salaried Employees prior to January 1, 1989 ("The Plan"), was approved by the stockholders of the Corporation on May 11, 1977, and became effective on July 1, 1977. The Plan was subsequently amended and completely restated effective as of January 1, 1989 and most recently as of July 1, 1997 ("restated Plan"). The amendments and restatements incorporate all prior amendments to the Plan and make changes to reflect the merger of the USG Corporation Savings Plan for Hourly Employees and change the name of the Plan to the USG Corporation Investment Plan, effective January 1, 1989; and to implement the daily valuation of investments in the participants' accounts at fair market value on each business day effective July 1, 1997. The Plan was established to provide a means for eligible hourly and salaried employees to participate in the earnings of the Corporation, to build a supplemental retirement fund and to provide additional disability and death benefits. The Plan provides, among other things, that participants may contribute up to 20% (9% for highly compensated employees) of their eligible pay to the Plan through payroll deductions on a before-tax basis during the year effective January 1, 2002, 15% from January 1, 1998 to December 31, 2001, 12% from July 1, 1997 to December 31, 1997, 9% from January 1, 1989 to June 30, 1997, 15% from October 1, 1985 to December 31, 1988 and 12% prior to October 15, 1985. The amount of distributions to be made upon withdrawal from the Plan is dependent upon the participant's and the Corporation's contributions. The Plan requires completion of three years of credited service, effective January 1, 2002 (five years previously), in order to be 100% vested in the Corporation contribution. Employee contributions are always 100% vested. In addition, the Plan contains provisions under which the entire amount credited to a participant's account is distributable upon a participant's retirement, disability, or death. Employee contributions are invested by the Trustee in any one or a combination of nine funds: (a) common stock of USG Corporation (USG Common Stock Fund), (b) an equity index fund which provides investment results that are designed to correspond to the performance of publicly traded common stocks, as represented by the Standard & Poor's 500 Composite Stock Price Index (Equity Index Fund), (c) a balanced fund which invests in several broadly diversified asset classes, including domestic and foreign common stock and bonds, preferred stocks and cash (Balanced Fund), (d) a growth fund which invests primarily in equity securities of large market capitalization companies with earnings that are expected to grow at an above-average rate, but may be further diversified by investment of a small portion of the assets in domestic bonds, foreign common stocks and bonds, and cash (Growth Fund), (e) a small cap equity fund which seeks maximum long-term growth of capital by investing in common stock of rapidly growing U.S. companies with market capitalization of less than $1 billion at the time of initial investment (Small Cap Equity Fund), (f) a large cap value fund which seeks to provide long-term growth of principal and income by investing in common stocks of companies that - 4 - appear to be temporarily undervalued by the stock market but have a favorable outlook for long-term growth (Large Cap Value Fund), (g) an international equity fund which seeks long-term capital appreciation through investments in common stock of established non-U.S. companies (International Equity Fund), (h) a bond fund which seeks to provide current income and preservation of capital by investing in investment grade corporate debt securities, government bonds and mortgages in both U.S. and foreign markets, (Bond Fund) or (i) a managed separate account which seeks to preserve principal and income while maximizing current income by investing in a diversified pool of Guaranteed Investment Contracts (GICs), separate account GICs, synthetic GICs or Structured Investment Contracts (SICs) and Bank Investment Contracts (BICs) of varying maturity, size and yield (Stable Value Fund). The Equity Index Fund is invested in the Vanguard Institutional Index Fund. The Balanced Fund is invested in the Fidelity Puritan Fund. The Growth Fund is invested in the AXP New Dimensions Fund - Class Y. The Small Cap Equity Fund is invested in the Franklin Small-Mid Cap Growth Fund - Class A. The Large Cap Value Fund is invested in the Dodge & Cox Stock Fund. The International Equity Fund is invested in the Templeton Foreign Fund - Class A. The Bond Fund is invested in the PIMCO Total Return Fund - Institutional Class. The Stable Value Fund is managed by PRIMCO Capital Management. At December 31, 2002, the Stable Value Fund was primarily composed of group annuity contracts maintained by banks and insurance companies. Participants may elect to have their contributions invested in 1% increments in any fund or combination of funds and to change their contribution rate, suspend or resume their contributions, change their investment allocations, transfer their investments from one fund to another and apply for a loan by calling the USG Investment Plan Connection, an automated telephone service, on any day. Certain Executive officers of the Corporation must pre-clear any transfer out of the USG Common Stock Fund with the USG Corporate Secretary. The Corporation made a regular 50% matching contribution up to the first 6% of the participants' eligible pay contributed to the Plan, credited to the participants' accounts each pay period starting June 1, 2001. From January 1, 2001 to May 31, 2001 the Corporation made a regular 25% matching contribution up to the first 6% of each participant's eligible pay contributed to the Plan. The Plan was amended effective January 1, 1999 to provide for immediate eligibility and enrollment to join the Plan for newly hired employees and current employees who are in their one year waiting period as of January 1, 1999, unless the employee elects not to join the Plan. - 5 - The fifth amendment to the Plan, effective November 8, 2000, does not allow additional participant or employer contributions to the USG Common Stock Fund. The amendment also does not allow the transfer of any portion of a participant's interest from any other fund into the USG Common Stock Fund. The sixth amendment to the Plan, effective June 1, 2001, increased the regular matching contribution on the first 6% of participant's eligible pay contributed to the Plan to 50% from 25%, credited to the participant's account each pay period. The seventh amendment, effective January 1, 2002, made several technical changes in conjunction with the underlying Internal Revenue Code as to contribution limits and distribution periods and limits, increasing the employee contribution rate to 20%, increasing the annual basic contribution limit to $11,000, increasing the plan year earnings limit to $200,000, and increasing the maximum annual addition to $40,000. This amendment also changed participant vesting in Corporation contributions to three years from five and changed the Corporation matching formula to attainment of certain EBITDAR goals from the previous consolidated earnings goals. The eighth amendment to the Plan, effective January 1, 2003 allows for catch-up contributions for participants who will have attained age 50 by the end of the plan year. The catch-up contribution limits are in accordance with, and subject to the limitations of, Section 414(v) of the Internal Revenue Code. The catch-up contributions are not taken into account for purposes of determining compliance with other contribution limits of the Plan. If the Trustee is unable to invest any contributions immediately, the funds are temporarily invested in short-term investment funds and any earnings in the fund are credited to the participants' accounts. The Plan funds are administered under the terms of a Trust agreement with The Northern Trust Company. The Trust agreement provides, among other things, that the Trustee shall keep account of all investments, receipts and disbursements and other transactions and shall provide annually a report setting forth such transactions and the status of the funds at the end of the period. The Plan is administered by the Pension and Investment Committee, which consists of five members appointed by the Corporation. Administrative expenses and other fees of the Plan are shared by the Corporation and the participants. At December 31, 2002 and 2001, there were approximately 12,238 and 12,089 participants in the Plan, respectively. 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES The amounts in the accompanying statements were accumulated from the reports of the Trustee (Note 1). The financial statements of the Plan are prepared under the accrual method of accounting. Contributions to the Plan are made throughout the year and adjustments are made to the financial statements to accrue for the portion of annual contributions unpaid at year-end. - 6 - The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets, liabilities, and changes therein, and disclosure of contingent assets and liabilities. Actual results could differ from those estimates. The Plan's investments are stated at market value except for its group annuity contracts with insurance companies, which are valued at contract value because they are fully benefit responsive. For example, participants may ordinarily direct the withdrawal or transfer of all or a portion of their investment at contract value. There are no reserves against contract value for credit risk of the contract issuers. Market value and cost are equal for the group annuity contracts and short-term investments. Shares of registered investment companies are valued at quoted market prices which represent the net asset value of shares held by the Plan at year-end. The Company stock is valued at its quoted market price. Participant loans receivable are valued at cost which approximates fair value. Purchases and sales of securities are recorded on a trade-date basis. Interest income is recorded on the accrual basis. Dividends are recorded on the ex-dividend date. Realized gains or losses on the sale of investments are calculated based upon the historical average cost of the investments. Unrealized appreciation or depreciation of investments of the Plan represents the change between years in the difference between the market value and cost of the investments. The guaranteed investment contracts in the Stable Value Fund earned guaranteed interest at rates varying from 1.44% to 7.47% at December 31, 2002. The rates for 2001 ranged from 4.50% to 7.47%. The guaranteed investment contracts earnings are calculated net of administrative fees. For the USG Common Stock Fund, cost was $23,326,234 and $26,311,866 as of December 31, 2002 and 2001, respectively. For the Equity Index Fund, cost exceeded market value by $7,123,086 at December 31, 2002 and market value exceeded cost by $5,999,385 at December 31, 2001. For the Balanced Fund, cost exceeded market value by $2,921,244 and $1,069,695 at December 31, 2002, and 2001, respectively. For the Growth Fund, cost exceeded market value by $13,006,764 and $5,165,244 at December 31, 2002, and 2001, respectively. For the Small Cap Equity Fund, cost exceeded market value by $5,738,888 and $3,724,992 at December 31, 2002 and 2001, respectively. Cost exceeded market value by $654,672 for the Large Cap Value Fund at December 31, 2002. Cost exceeded market value by $90,878 and $96,428 for the International Equity Fund at December 31, 2002, and 2001, respectively. For the Bond Fund, cost exceeded market value by $24,756 and $130,079 at December 31, 2002, and 2001, respectively. Pending transactions due to loans represent reconciliations of the loan amounts between the Trustee and recordkeeper at year-end, which will be posted to the Trustee's records in the subsequent year. Benefits are recorded when paid. - 7 - 3. TAX STATUS The Plan, as amended and restated, effective July 1, 1997, meets the requirements of Section 401(a) of the Internal Revenue Code and, accordingly, its income is exempt from Federal income tax under Section 501(a). Employer contributions and the income of the Plan are not taxable to the participants until distributions are made. 4. EMPLOYER CONTRIBUTIONS The Corporation will make a formula matching contribution with respect to each eligible participant only if at least 80% of the USG Companies EBITDAR goal is met for that plan year. In 2001 and years prior to that, the formula used in the matching contribution calculation is the consolidated earnings goal, which is based on the net sales of the USG Companies less cost of sales and selling and administrative expenses. Beginning January 1, 2002, the Plan uses EBITDAR (Consolidated Net Earnings of the USG Companies before Interest, Taxes, Depreciation, Amortization, Reorganization expenses and other income and expense items) as the target to measure performance attainment to be consistent with other USG incentive plans. Beginning January 1, 2002, the Corporation formula matching contribution schedule was set as follows: each 1% increase in goal attainment from 80% to 100% of goal results in a corresponding 1.5% increase in the profit sharing match, starting at a 10% match with the attainment of 80% of earnings goal. Each 1% increase in goal attainment from 100% to 140% of goal will result in a 1% increase in the profit sharing match, starting from a 40% match with attainment of 100% of goal earnings. There is no additional increase in matching percentage for achieving an EBITDAR goal beyond 140%. Employer contribution amounts forfeited by terminated employees are applied as a credit against future Corporate contributions or used to pay administrative expenses and other fees of the Plan and are held in the Forfeiture Cash Account. 5. DISTRIBUTION ON TERMINATION OF THE PLAN In the event of termination of the Plan, the account balances of all affected participants shall become non-forfeitable. - 8 - 6. INVESTMENTS The following is a summary of the Plan's investments as well as the net realized and unrealized appreciation (depreciation) for 2002 and 2001: 2002 2001 ------ ------ NET NET APPRECIATION APPRECIATION FAIR (DEPRECIATION) FAIR (DEPRECIATION) VALUE IN FAIR VALUE VALUE IN FAIR VALUE ------------- ------------- ------------- ------------- Common Stock: USG Common Stock $ 4,839,349 $ 1,650,999 $ 3,693,161 ($ 12,227,850) ------------- ------------- ------------- ------------- Mutual Funds: Vanguard Index Trust 43,804,332 (13,696,593) 58,731,580 (9,319,893) Fidelity Puritan Fund 19,758,185 (2,548,063) 23,074,841 (1,010,979) AXP New Dimensions Fund 35,894,239 (10,326,773) 47,972,711 (9,376,406) Franklin Small-Mid Cap Growth Fund 13,038,488 (5,672,594) 18,097,052 (5,626,225) Dodge & Cox Stock Fund 7,141,212 (927,772) --- --- Templeton Foreign Fund 6,254,958 (607,795) 7,111,988 (723,026) PIMCO Total Return Fund 16,860,651 694,596 10,398,032 266,015 ------------- ------------- ------------- ------------- 142,752,065 (33,084,994) 165,386,204 (25,790,514) ------------- ------------- ------------- ------------- Mortgages, Notes, Contracts 178,789,884 24,170 157,394,326 --- Collective Short-Term Investment Fund 10,032,685 --- 11,193,921 --- ------------- ------------- ------------- ------------- TOTAL INVESTMENTS $ 336,413,983 ($ 31,409,825) $ 337,667,612 ($ 38,018,364) ============= ============= ============= ============= All investments in the Plan are participant-directed investments. - 9 - At December 31, 2002 and 2001, the following investments (participant-directed) exceeded 5% of the net assets available for Plan benefits: 2002 2001 ------------ ------------- Vanguard Index Trust $ 43,804,332 $ 58,731,580 Fidelity Puritan Fund 19,758,185 23,074,841 AXP New Dimension Fund 35,894,239 47,972,711 Franklin Small-Mid Cap Growth Fund 13,038,488 18,097,052 Allstate Insurance Company Contract 77032 11,696,347 18,792,949 Monumental Life Insurance Company Contract 00246TR 22,478,371 19,007,928 State Street Bank & Trust Contract 99010 15,461,787 23,270,179 UBS, Contract 5021 33,775,598 23,428,895 7. PARTICIPANT LOANS Effective October 1, 1993, and as revised on July 1, 1997, a participant can obtain loans from the Plan. Under the Plan's loan provisions, the maximum loan allowable is one half of a participant's vested account balance or $50,000, whichever is less. The minimum loan amount is $1,000. Additional amounts can be taken in $1 increments. A participant must have a vested account balance of at least $2,000 before he or she can apply for a loan. The Plan restricts the participant to no more than two loans outstanding at a time. Most loans can be repaid by the participant over a five-year period, or sooner, in full, with interest at the prime rate in effect at the time of requesting the loan. A residential loan can be repaid over a period of up to 30 years. Default on a loan by a participant is treated as a hardship withdrawal and subject to IRS penalties. - 10 - SCHEDULE I USG CORPORATION INVESTMENT PLAN SCHEDULE OF INVESTMENTS HELD AT YEAR END DECEMBER 31, 2002 PRINCIPAL AMOUNT/NUMBER OF FAIR SHARES COST VALUE ---------------- ----------- ----------- COMMON STOCK USG Corporation 572,704 $ 23,326,234 $ 4,839,349 Vanguard Index Trust 544,491 50,927,418 43,804,332 Fidelity Puritan Fund 1,251,310 22,679,429 19,758,185 AXP New Dimensions Fund 1,862,701 48,901,003 35,894,239 Franklin Small-Mid Cap Growth Fund 594,009 18,777,376 13,038,488 Dodge & Cox Stock Fund 81,104 7,795,884 7,141,212 Templeton Foreign Fund 752,703 6,345,836 6,254,958 ------------ ----------- ----------- TOTAL COMMON STOCK 178,753,180 130,730,763 ----------- ----------- CORPORATE BONDS PIMCO Total Return Fund 1,580,192 16,885,407 16,860,651 ------------ ----------- ----------- CONTRACTS Allstate, 77184 $ 18,872,984 18,872,984 18,872,984 Allstate, 77032 $ 11,696,347 11,696,347 11,696,347 Bank of America, 99-061 $ 8,966,896 8,966,896 8,966,896 Caisse des Deposts, 1077-01 $ 14,913,982 14,913,982 14,913,982 ING Life & Annuity, 14621 $ 4,039,047 4,039,047 4,039,047 ING Life & Annuity, 60035 $ 2,005,422 2,005,422 2,005,422 John Hancock Mutual Life Insurance Co., GAC 9532 $ 10,678,493 10,678,493 10,678,493 JP Morgan Chase Contract 401748-G $ 1,235,324 1,235,324 1,235,324 JP Morgan Chase Contract AUSG01 $ 17,271,451 17,271,451 17,271,451 Monumental Life Insurance Company, MDA0158FR $ 3,676,303 3,676,303 3,676,303 Monumental Life Insurance Company, 00232TR $ 1,249,867 1,249,867 1,249,867 Monumental Life Insurance Company, 00218TR $ 2,485,190 2,485,190 2,485,190 Monumental Life Insurance Company, 00246TR $ 22,478,371 22,478,371 22,478,371 Prudential, 10092-211 $ 3,449,987 3,449,987 3,449,987 State Street Bank & Trust Contract 98203 $ 2,528,602 2,528,602 2,528,602 State Street Bank & Trust Contract 99010 $ 15,461,787 15,461,787 15,461,787 UBS, 5126 $ 4,004,233 4,004,233 4,004,233 UBS, 5021 $ 33,775,598 33,775,598 33,775,598 ------------ ------------ ------------ TOTAL CONTRACTS $178,789,884 178,789,884 178,789,884 ------------ ------------ ------------ SHORT-TERM INVESTMENTS Collective Short-Term Investment Fund $ 10,032,685 10,032,685 10,032,685 ------------ ------------ TOTAL INVESTMENTS $384,461,156 $336,413,983 ============ ============ - 11 - SCHEDULE II USG CORPORATION INVESTMENT PLAN SCHEDULE OF REPORTABLE TRANSACTIONS FOR THE YEAR ENDED DECEMBER 31, 2002 SERIES OF TRANSACTIONS IN THE SAME SECURITY: TOTAL COST TOTAL CURRENT DESCRIPTION OF NUMBER OF OF NUMBER OF VALUE OF SECURITY PURCHASES ASSET SALES SALES -------------- --------- ------ --------- ---------- None - 12 -