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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM 10-Q

QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended September 30, 2011

Commission file number:  1-3285

3M COMPANY

(Exact name of registrant as specified in its charter)

(651) 733-1110

(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.  Yes x  No o

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).  Yes x  No o

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

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

Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.

This document (excluding exhibits) contains 72 pages.

The table of contents is set forth on page 2.

The exhibit index begins on page 69.

Table of Contents

3M COMPANY

Form 10-Q for the Quarterly Period Ended September 30, 2011

TABLE OF CONTENTS

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3M COMPANY

FORM 10-Q

For the Quarterly Period Ended September 30, 2011

PART I.  Financial Information

Item 1.  Financial Statements.

3M Company and Subsidiaries

Consolidated Statement of Income

(Unaudited)

The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.

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3M Company and Subsidiaries

Consolidated Balance Sheet

(Unaudited)

The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.

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3M Company and Subsidiaries

Consolidated Statement of Cash Flows

(Unaudited)

The accompanying Notes to Consolidated Financial Statements are an integral part of this statement.

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3M Company and Subsidiaries

Notes to Consolidated Financial Statements

(Unaudited)

NOTE 1.  Significant Accounting Policies

Basis of Presentation

The interim consolidated financial statements are unaudited but, in the opinion of management, reflect all adjustments necessary for a fair statement of the Company’s consolidated financial position, results of operations and cash flows for the periods presented. These adjustments consist of normal, recurring items. The results of operations for any interim period are not necessarily indicative of results for the full year. The interim consolidated financial statements and notes are presented as permitted by the requirements for Quarterly Reports on Form 10-Q.

As described in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K) and 3M’s Quarterly Report on Form 10-Q for the period ended March 31, 2011, during the first quarter of 2011 the Company made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers (Note 13). Segment information presented herein reflects the impact of these changes for all periods presented. This Quarterly Report on Form 10-Q should be read in conjunction with the Company’s consolidated financial statements and notes included in its Current Report on Form 8-K dated May 26, 2011.

Effective with 3M’s second-quarter 2011 Form 10-Q, the Company revised the amounts previously presented for cash used in investing activities and cash used in financing activities during the three months ended March 31, 2011 and 2010 by $33 million and $63 million, respectively, related to purchases of additional shares (noncontrolling interest) of non-wholly owned consolidated subsidiaries. These immaterial revisions increased cash used in financing activities and decreased cash used in investing activities by the amounts indicated above for the respective periods.

Earnings Per Share

The difference in the weighted average 3M shares outstanding for calculating basic and diluted earnings per share attributable to 3M common shareholders is a result of the dilution associated with the Company’s stock-based compensation plans. Certain options outstanding under these stock-based compensation plans were not included in the computation of diluted earnings per share attributable to 3M common shareholders because they would not have had a dilutive effect (29.7 million average options for the three months ended September 30, 2011; 12.3 million average options for the nine months ended September 30, 2011; 30.2 million average options for the three months ended September 30, 2010; and 30.4 million average options for the nine months ended September 30, 2010). The conditions for conversion related to the Company’s “Convertible Notes” were not met (refer to 3M’s Current Report on Form 8-K dated May 26, 2011, Note 10 to the Consolidated Financial Statements, for more detail). If the conditions for conversion were met, 3M could have chosen to pay in cash and/or common stock; however, if this occurred, the Company had the intent and ability to settle this debt security in cash. Accordingly, there was no impact on diluted earnings per share attributable to 3M common shareholders. As discussed in Note 7 in this document, in September 2011, 3M redeemed all remaining Convertible Notes, which were otherwise due in 2032. The computations for basic and diluted earnings per share follow:

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Earnings Per Share Computations

New Accounting Pronouncements

In October 2009, the FASB issued ASU No. 2009-13, Multiple-Deliverable Revenue Arrangements—a consensus of the FASB Emerging Issues Task Force, that provides amendments to the criteria for separating consideration in multiple-deliverable arrangements. As a result of these amendments, multiple-deliverable revenue arrangements are separated in more circumstances than under pre-existing U.S. GAAP. The ASU does this by establishing a selling price hierarchy for determining the selling price of a deliverable. The selling price used for each deliverable is based on vendor-specific objective evidence if available, third-party evidence if vendor-specific objective evidence is not available, or estimated selling price if neither vendor-specific objective evidence nor third-party evidence is available. A vendor is required to determine its best estimate of selling price in a manner that is consistent with that used to determine the price to sell the deliverable on a standalone basis. This ASU also eliminates the residual method of allocation and requires that arrangement consideration be allocated at the inception of the arrangement to all deliverables using the relative selling price method, which allocates any discount in the overall arrangement proportionally to each deliverable based on its relative selling price. Expanded disclosures of qualitative and quantitative information regarding application of the multiple-deliverable revenue arrangement guidance are also required under the ASU. The ASU does not apply to arrangements for which industry specific allocation and measurement guidance exists, such as long-term construction contracts and software transactions. For 3M, ASU No. 2009-13 was effective beginning January 1, 2011. 3M elected to adopt the provisions of this standard prospectively to new or materially modified arrangements beginning on the effective date. The adoption of this standard did not have a material impact on 3M’s consolidated results of operations or financial condition.

In October 2009, the FASB issued ASU No. 2009-14, Certain Revenue Arrangements That Include Software Elements—a consensus of the FASB Emerging Issues Task Force, that reduces the types of transactions that fall within the scope of software revenue recognition guidance. Pre-existing software revenue recognition guidance required that its provisions be applied to an entire arrangement when the sale of any products or services containing or utilizing software when the software was considered more than incidental to the product or service. As a result of the amendments included in ASU No. 2009-14, many tangible products and services that rely on software are accounted for under the multiple-element arrangements revenue recognition guidance rather than under the software revenue recognition guidance. Under the ASU, the following components are excluded from the scope of software revenue recognition guidance: the tangible element of the product, software products bundled with tangible products where the software components and non-software components function together to deliver the product’s essential functionality, and undelivered components that relate to software that is essential to the tangible product’s functionality. The ASU also provides guidance on how to allocate transaction consideration when an arrangement contains both deliverables within the scope of software revenue guidance (software deliverables) and deliverables not within the scope of that guidance (non-software deliverables). For 3M, ASU No. 2009-14 was effective beginning January 1, 2011. 3M elected to adopt the provisions of this standard prospectively to new or materially modified arrangements beginning on the effective date. The adoption of this standard did not have a material impact on 3M’s consolidated results of operations or financial condition.

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In January 2010, the FASB issued ASU No. 2010-06, Improving Disclosures About Fair Value Measurements, that amends pre-existing disclosure requirements under ASC 820 by adding required disclosures about items transferring into and out of levels 1 and 2 in the fair value hierarchy; adding separate disclosures about purchases, sales, issuances, and settlements relative to level 3 measurements; and clarifying, among other things, the pre-existing fair value disclosures about the level of disaggregation. For 3M, this ASU was effective for the first quarter of 2010, except for the requirement to provide level 3 activity of purchases, sales, issuances, and settlements on a gross basis, which was effective beginning the first quarter of 2011. Since this standard impacts disclosure requirements only, its adoption did not have a material impact on 3M’s consolidated results of operations or financial condition.

In April 2010, the FASB issued ASU No. 2010-17, Milestone Method of Revenue Recognition—a consensus of the FASB Emerging Issues Task Force that recognizes the milestone method as an acceptable revenue recognition method for substantive milestones in research or development arrangements. This standard requires its provisions be met in order for an entity to recognize consideration that is contingent upon achievement of a substantive milestone as revenue in its entirety in the period in which the milestone is achieved. In addition, this ASU requires disclosure of certain information with respect to arrangements that contain milestones. For 3M, this standard was effective prospectively beginning January 1, 2011. The adoption of this standard did not have a material impact on 3M’s consolidated results of operations or financial condition.

In May 2011, the FASB issued ASU No. 2011-04, Fair Value Measurement: Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRSs. This standard clarifies guidance on how to measure fair value and is largely consistent with existing fair value measurement principles. The ASU also expands existing disclosure requirements for fair value measurements and makes other amendments. For 3M, this ASU is effective prospectively beginning January 1, 2012. The adoption of this standard is not expected to have a material impact on 3M’s consolidated results of operations or financial condition.

In June 2011, the FASB issued ASU No. 2011-05, Presentation of Comprehensive Income. This standard requires entities to present items of net income and other comprehensive income either in a single continuous statement, or in separate, but consecutive, statements of net income and other comprehensive income. The new requirements do not change which components of comprehensive income are recognized in net income or other comprehensive income, or when an item of other comprehensive income must be reclassified to net income. Also, the earnings-per share computation does not change. However, the current option under existing standards to report other comprehensive income and its components in the statement of changes in equity is eliminated. In addition, the previous option to disclose reclassification adjustments in the notes to the financial statements is also eliminated, as reclassification adjustments will be required to be shown on the face of the statement under the new standard. For 3M, this ASU is effective retrospectively beginning January 1, 2012, with early adoption permitted. Since this standard impacts disclosure requirements only, its adoption will not have a material impact on 3M’s consolidated results of operations or financial condition.

In September 2011, the FASB issued ASU No. 2011-08, Testing Goodwill for Impairment. Under this new standard, entities testing goodwill for impairment now have an option of performing a qualitative assessment before having to calculate the fair value of a reporting unit. If an entity determines, on the basis of qualitative factors, that the fair value of the reporting unit is more-likely-than-not less than the carrying amount, the existing quantitative impairment test is required. Otherwise, no further impairment testing is required. For 3M, this ASU is effective beginning January 1, 2012, with early adoption permitted under certain conditions. The adoption of this standard will not have a material impact on 3M’s consolidated results of operations or financial condition.

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NOTE 2.  Acquisitions

3M makes acquisitions of certain businesses from time to time that the Company feels align with its strategic intent with respect to, among other factors, growth markets and adjacent product lines or technologies.

The impact on the consolidated balance sheet of the purchase price allocations related to acquisitions, including adjustments relative to other acquisitions within the allocation period, follows. Adjustments to previous acquisitions were not material and primarily related to changes in the preliminary allocations of purchase price of businesses acquired in the fourth quarter of 2010 and first quarter of 2011. The allocation of purchase price related to acquisitions in the first nine months of 2011, primarily Winterthur Technologie AG (Winterthur), is considered preliminary, largely with respect to certain acquired intangible assets and tax-related assets and liabilities.

Goodwill resulting from business combinations is largely attributable to the existing workforce of the acquired businesses and synergies expected to arise after 3M’s acquisition of these businesses. In-process research and development associated with these business combinations were not material. Pro forma information related to acquisitions was not included because the impact on the Company’s consolidated results of operations was not considered to be material.

In addition to business combinations, 3M periodically acquires certain tangible and/or intangible assets and purchases interests in certain enterprises that do not otherwise qualify for accounting as business combinations. These transactions are largely reflected as additional asset purchase and investment activity.

During the nine months ended September 30, 2011, 3M completed eight business combinations. The purchase price paid for these business combinations (net of cash acquired) and the impact of other matters (net) during the nine months ended September 30, 2011 aggregated to $531 million.

(1) In January 2011, 3M (Industrial and Transportation Business) purchased certain assets of Nida-Core Corp., a manufacturer of structural honeycomb core and fiber-reinforced foam core materials based in Port St. Lucie, Florida.

(2) In February 2011, 3M (Industrial and Transportation Business) announced that it completed its acquisition of all of the outstanding shares of Alpha Beta Enterprise Co. Ltd., a manufacturer of box sealing tape and masking tape headquartered in Taipei, Taiwan.

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(3) In February 2011, 3M (Consumer and Office Business) purchased all of the outstanding shares of Hybrivet Systems Inc., a provider of instant-read products to detect lead and other contaminants and toxins, which is based in Natick, Massachusetts.

(4) In early March 2011, 3M (Industrial and Transportation Business) acquired a controlling interest in Winterthur via completion of a public tender offer. Winterthur, based in Zug, Switzerland, is a leading global supplier of precision grinding technology serving customers in the area of hard-to-grind precision applications in industrial, automotive, aircraft and cutting tools. As of the settlement date of the tendered shares (the business acquisition date), 3M owned approximately 86 percent of Winterthur shares via the tender and previous open market share purchases. The purchase price paid in the preceding table includes non-cash consideration of $10 million representing the business acquisition date fair value of shares previously owned by 3M as of December 31, 2010 and cash consideration paid, net of cash acquired, of $295 million for subsequently tendered and open market purchased shares through the business acquisition date. Following the business acquisition date, 3M also purchased additional outstanding shares of its consolidated Winterthur subsidiary, increasing 3M’s ownership interest to approximately 98 percent as of September 30, 2011 as discussed in Note 4.

(5) In April 2011, 3M (Electro and Communications Business) purchased all of the outstanding shares of AP&T Co. Ltd., based in Korea, which provides advanced sputtering and plating services, materials and manufacturing capabilities for flexible circuits for the mobile hand-held, touch-screen panel and display markets.

(6) In April 2011, 3M (Display and Graphics Business) purchased all of the outstanding shares of Original Wraps Inc., a company specializing in the creative business development, technology and design of personalization platforms for vehicles and vehicle accessories, which is based in Golden, Colorado.

(7) In July 2011, 3M (Industrial and Transportation Business) purchased all of the outstanding shares of Advanced Chemistry & Technology Inc., a manufacturer of quick-cure, light-weight polysulfide sealants for aerospace applications, which is based in Garden Grove, California.

(8) In July 2011, 3M (Industrial and Transportation Business) purchased certain assets of Piranha Plastics LLC, based in Santa Clara, California, which provides plastic molding and paint solutions to the automotive aftermarket.

Purchased identifiable finite-lived intangible assets related to acquisitions which closed in the first nine months of 2011 totaled $284 million and will be amortized on a straight-line basis over a weighted-average life of 14 years (lives ranging from 3 to 20 years). Acquired identifiable intangible assets for which significant assumed renewals or extensions of underlying arrangements impacted the determination of their useful lives were not material.

Subsequent Event:

In October 2011, 3M (Consumer and Office Business) acquired the do-it-yourself and professional business of GPI Group. GPI is a manufacturer and marketer of home improvement products such as tapes, hooks, insulation, and floor protection products and accessories, headquartered in France.

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NOTE 3.  Goodwill and Intangible Assets

Purchased goodwill related to the acquisitions which closed in the first nine months of 2011 totaled $230 million, $7 million of which is deductible for tax purposes. The acquisition activity in the following table also includes the net impacts of adjustments to the preliminary allocation of purchase price for prior year acquisitions, which decreased goodwill by $2 million. The amounts in the “Translation and other” column in the following table primarily relate to changes in foreign currency exchange rates. The goodwill balance by business segment as of December 31, 2010 and September 30, 2011, follow:

Goodwill

Accounting standards require that goodwill be tested for impairment annually and between annual tests in certain circumstances such as a change in reporting units or the testing of recoverability of a significant asset group within a reporting unit. At 3M, reporting units generally correspond to a division.

As discussed in Note 13, effective in the first quarter of 2011, 3M made certain product moves between its business segments, with the resulting impact reflected in the goodwill balances by business segment above for all periods presented. For any product moves that resulted in reporting unit changes, the Company applied the relative fair value method to determine the impact to reporting units. During the first quarter of 2011, the Company completed its assessment of any potential goodwill impairment for reporting units impacted by this new structure and determined that no impairment existed.

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Acquired Intangible Assets

For the nine months ended September 30, 2011, intangible assets (excluding goodwill) acquired through business combinations increased balances by $284 million. Balances are also impacted by changes in foreign currency exchange rates. The carrying amount and accumulated amortization of acquired finite-lived intangible assets, in addition to the balance of non-amortizable intangible assets, as of September 30, 2011, and December 31, 2010, follow:

Amortization expense for acquired intangible assets for the three-month and nine-month periods ended September 30, 2011 and 2010 follows:

The table below shows expected amortization expense for acquired amortizable intangible assets recorded as of September 30, 2011:

The expected amortization expense is an estimate. Actual amounts of amortization expense may differ from estimated amounts due to additional intangible asset acquisitions, changes in foreign currency exchange rates, impairment of intangible assets, accelerated amortization of intangible assets and other events. 3M expenses the costs incurred to renew or extend the term of intangible assets.

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NOTE 4.  Supplemental Equity and Comprehensive Income Information

Consolidated Statement of Changes in Equity

3M Company and Subsidiaries

Three months ended September 30, 2011