10-Q

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)

DELAWARE	41-0417775
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
3M Center, St. Paul, Minnesota	55144
(Address of principal executive offices)	(Zip Code)

(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.

Large accelerated filer x	Accelerated filer o
Non-accelerated filer o (Do not check if a smaller reporting company)	Smaller reporting company o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  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.

Class	Outstanding at September 30, 2011
Common Stock, $0.01 par value per share	700,844,681 shares

This document (excluding exhibits) contains 72 pages.

The table of contents is set forth on page 2.

The exhibit index begins on page 69.

3M COMPANY

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

TABLE OF CONTENTS

		BEGINNING PAGE
PART I	FINANCIAL INFORMATION
ITEM 1.	Financial Statements
	Index to Financial Statements:
	Consolidated Statement of Income	3
	Consolidated Balance Sheet	4
	Consolidated Statement of Cash Flows	5
	Notes to Consolidated Financial Statements
	Note 1.   Significant Accounting Policies	6
	Note 2.   Acquisitions	9
	Note 3.   Goodwill and Intangible Assets	11
	Note 4.   Supplemental Equity and Comprehensive Income Information	13
	Note 5.   Income Taxes	17
	Note 6.   Marketable Securities	18
	Note 7.   Long-Term Debt and Short-Term Borrowings	20
	Note 8.   Pension and Postretirement Benefit Plans	21
	Note 9.   Derivatives	22
	Note 10. Fair Value Measurements	28
	Note 11. Commitments and Contingencies	32
	Note 12. Stock-Based Compensation	41
	Note 13. Business Segments	43
	Report of Independent Registered Public Accounting Firm	45
ITEM 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations
	Index to Management’s Discussion and Analysis:
	Overview	46
	Results of Operations	49
	Performance by Business Segment	52
	Financial Condition and Liquidity	59
	Cautionary Note Concerning Factors That May Affect Future Results	64
ITEM 3.	Quantitative and Qualitative Disclosures About Market Risk	65
ITEM 4.	Controls and Procedures	65
PART II	OTHER INFORMATION
ITEM 1.	Legal Proceedings	66
ITEM 1A.	Risk Factors	66
ITEM 2.	Unregistered Sales of Equity Securities and Use of Proceeds	67
ITEM 3.	Defaults Upon Senior Securities	68
ITEM 4.	Removed and Reserved	68
ITEM 5.	Other Information	68
ITEM 6.	Exhibits	69

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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)

	Three months ended						Nine months ended
	September 30,						September 30,
(Millions, except per share amounts)	2011			2010			2011			2010
Net sales	$	7,531		$	6,874		$	22,522		$	19,953
Operating expenses
Cost of sales	4,027			3,583			11,869			10,256
Selling, general and administrative expenses	1,534			1,361			4,648			4,034
Research, development and related expenses	389			354			1,191			1,046
Total operating expenses	5,950			5,298			17,708			15,336
Operating income	1,581			1,576			4,814			4,617
Interest expense and income
Interest expense	48			51			141			151
Interest income	(10		)	(11		)	(29		)	(27		)
Total interest expense (income)	38			40			112			124
Income before income taxes	1,543			1,536			4,702			4,493
Provision for income taxes	440			411			1,319			1,273
Net income including noncontrolling interest	$	1,103		$	1,125		$	3,383		$	3,220
Less: Net income attributable to noncontrolling interest	15			19			54			63
Net income attributable to 3M	$	1,088		$	1,106		$	3,329		$	3,157
Weighted average 3M common shares outstanding – basic	707.7			714.0			710.9			713.4
Earnings per share attributable to 3M commonshareholders – basic	$	1.54		$	1.55		$	4.68		$	4.42
Weighted average 3M common shares outstanding – diluted	715.5			725.2			722.8			724.8
Earnings per share attributable to 3M commonshareholders – diluted	$	1.52		$	1.53		$	4.61		$	4.36
Cash dividends paid per 3M common share	$	0.55		$	0.525		$	1.65		$	1.575

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)

(Dollars in millions, except per share amount)	Sept. 30, 2011			Dec. 31, 2010
Assets
Current assets
Cash and cash equivalents	$	3,376		$	3,377
Marketable securities — current	1,486			1,101
Accounts receivable — net	4,259			3,615
Inventories
Finished goods	1,652			1,476
Work in process	1,088			950
Raw materials and supplies	864			729
Total inventories	3,604			3,155
Other current assets	944			967
Total current assets	13,669			12,215
Marketable securities — non-current	443			540
Investments	162			146
Property, plant and equipment	21,038			20,253
Less: Accumulated depreciation	(13,529		)	(12,974		)
Property, plant and equipment — net	7,509			7,279
Goodwill	7,140			6,820
Intangible assets — net	1,952			1,820
Prepaid pension benefits	87			74
Other assets	1,153			1,262
Total assets	$	32,115		$	30,156
Liabilities
Current liabilities
Short-term borrowings and current portion of long-term debt	$	1,204		$	1,269
Accounts payable	1,689			1,662
Accrued payroll	654			778
Accrued income taxes	421			358
Other current liabilities	2,197			2,022
Total current liabilities	6,165			6,089
Long-term debt	4,955			4,183
Pension and postretirement benefits	1,704			2,013
Other liabilities	1,879			1,854
Total liabilities	$	14,703		$	14,139
Commitments and contingencies (Note 11)
Equity
3M Company shareholders’ equity:
Common stock par value, $.01 par value, 944,033,056 shares issued	$	9		$	9
Additional paid-in capital	3,725			3,468
Retained earnings	27,784			25,995
Treasury stock, at cost: 243,188,375 shares at Sept. 30, 2011; 232,055,448 shares at Dec. 31, 2010	(11,211		)	(10,266		)
Accumulated other comprehensive income (loss)	(3,339		)	(3,543		)
Total 3M Company shareholders’ equity	16,968			15,663
Noncontrolling interest	444			354
Total equity	$	17,412		$	16,017
Total liabilities and equity	$	32,115		$	30,156

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)

	Nine months ended September 30,
(Millions)	2011			2010
Cash Flows from Operating Activities
Net income including noncontrolling interest	$	3,383		$	3,220
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	919			837
Company pension and postretirement contributions	(373		)	(431		)
Company pension and postretirement expense	400			243
Stock-based compensation expense	210			228
Deferred income taxes	(37		)	20
Excess tax benefits from stock-based compensation	(52		)	(43		)
Changes in assets and liabilities
Accounts receivable	(557		)	(529		)
Inventories	(364		)	(521		)
Accounts payable	(30		)	173
Accrued income taxes (current and long-term)	212			160
Product and other insurance receivables and claims	(45		)	44
Other — net	(120		)	142
Net cash provided by operating activities	3,546			3,543
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(862		)	(565		)
Proceeds from sale of PP&E and other assets	12			7
Acquisitions, net of cash acquired	(531		)	(48		)
Purchases of marketable securities and investments	(2,592		)	(2,947		)
Proceeds from sale of marketable securities and investments	1,042			1,425
Proceeds from maturities of marketable securities	1,353			1,254
Other investing	(6		)	(3		)
Net cash used in investing activities	(1,584		)	(877		)
Cash Flows from Financing Activities
Change in short-term debt — net	(13		)	(31		)
Repayment of debt (maturities greater than 90 days)	(474		)	(135		)
Proceeds from debt (maturities greater than 90 days)	1,108			9
Purchases of treasury stock	(2,207		)	(415		)
Reissuances of treasury stock	865			505
Dividends paid to shareholders	(1,171		)	(1,124		)
Excess tax benefits from stock-based compensation	52			43
Other — net	(58		)	(77		)
Net cash used in financing activities	(1,898		)	(1,225		)
Effect of exchange rate changes on cash and cash equivalents	(65		)	(15		)
Net increase (decrease) in cash and cash equivalents	(1		)	1,426
Cash and cash equivalents at beginning of year	3,377			3,040
Cash and cash equivalents at end of period	$	3,376		$	4,466

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

	Three months ended September 30,				Nine months ended  September 30,
(Amounts in millions, except per share amounts)	2011		2010		2011		2010
Numerator:
Net income attributable to 3M	$	1,088	$	1,106	$	3,329	$	3,157
Denominator:
Denominator for weighted average 3M common shares outstanding – basic	707.7		714.0		710.9		713.4
Dilution associated with the Company’s stock-based compensation plans	7.8		11.2		11.9		11.4
Denominator for weighted average 3M common shares outstanding – diluted	715.5		725.2		722.8		724.8
Earnings per share attributable to 3M common shareholders – basic	$	1.54	$	1.55	$	4.68	$	4.42
Earnings per share attributable to 3M common shareholders – diluted	$	1.52	$	1.53	$	4.61	$	4.36

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.

	First Nine Months 2011 Acquisition Activity
(Millions) Asset (Liability)	Winterthur Technologie AG			Other Acquisitions			Total
Accounts receivable	$	43		$	40		$	83
Inventory	76			27			103
Other current assets	6			3			9
Property, plant, and equipment	73			81			154
Purchased finite-lived intangible assets	226			58			284
Purchased goodwill	152			76			228
Accounts payable and other liabilities, net of other assets	(76		)	(30		)	(106		)
Interest bearing debt	(79		)	(7		)	(86		)
Deferred tax asset/(liability)	(60		)	(12		)	(72		)
Net assets acquired	$	361		$	236		$	597
Noncontrolling interest	(56		)	—			(56		)
Net assets acquired excluding noncontrolling interest	$	305		$	236		$	541
Supplemental information:
Cash paid	$	327		$	240		$	567
Less: Cash acquired	32			4			36
Cash paid, net of cash acquired	$	295		$	236		$	531
Non-cash	10			—			10
Net assets acquired excluding noncontrolling interest	$	305		$	236		$	541

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

(Millions)	Dec. 31, 2010 Balance		Acquisition activity			Translation and other		Sept. 30, 2011 Balance
Industrial and Transportation	$	1,783	$	209		$	25	$	2,017
Health Care	1,506		(1		)	28		1,533
Display and Graphics	994		4			3		1,001
Consumer and Office	187		13			5		205
Safety, Security and Protection Services	1,670		(3		)	21		1,688
Electro and Communications	680		6			10		696
Total Company	$	6,820	$	228		$	92	$	7,140

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:

(Millions)	Sept. 30, 2011			Dec. 31, 2010
Patents	$	568		$	551
Other amortizable intangible assets (primarily tradenames and customer related intangibles)	2,329			2,016
Total gross carrying amount	$	2,897		$	2,567
Accumulated amortization — patents	(371		)	(345		)
Accumulated amortization — other	(700		)	(527		)
Total accumulated amortization	$	(1,071	)	$	(872	)
Total finite-lived intangible assets — net	$	1,826		$	1,695
Non-amortizable intangible assets (tradenames)	126			125
Total intangible assets — net	$	1,952		$	1,820

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

	Three months ended September 30,				Nine months ended September 30,
(Millions)	2011		2010		2011		2010
Amortization expense	$	59	$	44	$	176	$	130

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

(Millions)	Last Quarter 2011		2012		2013		2014		2015		2016		After 2016
Amortization expense	$	59	$	223	$	212	$	189	$	177	$	164	$	802

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

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at June 30, 2011	$	17,742		$	3,692	$	27,110		$	(10,511	)	$	(2,961	)	$	412
Net income	1,103					1,088									15
Cumulative translation adjustment	(490		)									(507		)	17
Defined benefit pension and post-retirement plans adjustment	77											77			—
Debt and equity securities - unrealized gain (loss)	(2		)									(2		)	—
Cash flow hedging instruments - unrealized gain (loss)	54											54			—
Total comprehensive income	742
Dividends paid	(388		)			(388		)
Stock-based compensation, net of tax impacts	42			42
Reacquired stock	(837		)						(837		)
Issuances pursuant to stock option and benefit plans	111					(26		)	137
Balance at Sept. 30, 2011	$	17,412		$	3,734	$	27,784		$	(11,211	)	$	(3,339	)	$	444

3M Company and Subsidiaries

Nine months ended September 30, 2011

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at Dec. 31, 2010	$	16,017		$	3,477		$	25,995		$	(10,266	)	$	(3,543	)	$	354
Net income	3,383						3,329									54
Cumulative translation adjustment	(14		)										(34		)	20
Defined benefit pension and post- retirement plans adjustment	207												206			1
Debt and equity securities - unrealized gain (loss)	(5		)										(5		)	—
Cash flow hedging instruments - unrealized gain (loss)	37												37			—
Total comprehensive income	3,608
Dividends paid	(1,171		)				(1,171		)
Business combination allocation to noncontrolling interest	56															56
Purchase and sale of subsidiary shares - net	(42		)	(1		)										(41		)
Stock-based compensation, net of tax impacts	258			258
Reacquired stock	(2,181		)							(2,181		)
Issuances pursuant to stock option and benefit plans	867						(369		)	1,236
Balance at Sept. 30, 2011	$	17,412		$	3,734		$	27,784		$	(11,211	)	$	(3,339	)	$	444

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3M Company and Subsidiaries

Three months ended September 30, 2010

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at June 30, 2010	$	14,263		$	3,345	$	24,788		$	(10,146	)	$	(4,016	)	$	292
Net income	1,125					1,106									19
Cumulative translation adjustment	669											651			18
Defined benefit pension and postretirement plans adjustment	48											48			—
Debt and equity securities - unrealized gain (loss)	3											3			—
Cash flow hedging instruments - unrealized gain (loss)	(52		)									(52		)	—
Total comprehensive income	1,793
Dividends paid	(375		)			(375		)
Stock-based compensation, net of tax impacts	45			45
Reacquired stock	(11		)						(11		)
Issuances pursuant to stock option and benefit plans	118					(26		)	144
Balance at Sept. 30, 2010	$	15,833		$	3,390	$	25,493		$	(10,013	)	$	(3,366	)	$	329

3M Company and Subsidiaries

Nine months ended September 30, 2010

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at Dec. 31, 2009	$	13,302		$	3,162	$	23,753		$	(10,397	)	$	(3,754	)	$	538
Net income	3,220					3,157									63
Cumulative translation adjustment	216											187			29
Defined benefit pension and postretirement plans adjustment	147											146			1
Debt and equity securities - unrealized gain (loss)	5											5			—
Cash flow hedging instruments - unrealized gain (loss)	11											11			—
Total comprehensive income	3,599
Dividends paid	(1,124		)			(1,124		)
Purchase of subsidiary shares and transfers from noncontrolling interest	(256		)	7								39			(302		)
Stock-based compensation, net of tax impacts	221			221
Reacquired stock	(415		)						(415		)
Issuances pursuant to stock option and benefit plans	506					(293		)	799
Balance at Sept. 30, 2010	$	15,833		$	3,390	$	25,493		$	(10,013	)	$	(3,366	)	$	329

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Accumulated Other Comprehensive Income (Loss) Attributable to 3M

	Sept. 30,			Dec. 31,
(Millions)	2011			2010
Cumulative translation adjustment	$	340		$	374
Defined benefit pension and postretirement plans adjustment	(3,673		)	(3,879		)
Debt and equity securities, unrealized gain (loss)	(11		)	(6		)
Cash flow hedging instruments, unrealized gain (loss)	5			(32		)
Total accumulated other comprehensive income (loss)	$	(3,339	)	$	(3,543	)

Consolidated Statement of Comprehensive Income (Loss)

	Three months endedSeptember 30,						Nine months endedSeptember 30,
(Millions)	2011			2010			2011			2010
Net income including noncontrolling interest	$	1,103		$	1,125		$	3,383		$	3,220
Other comprehensive income, net of tax:
Cumulative translation adjustment	(490		)	669			(14		)	216
Defined benefit pension and postretirement plans adjustment	77			48			207			147
Debt and equity securities, unrealized gain (loss)	(2		)	3			(5		)	5
Cash flow hedging instruments, unrealized gain (loss)	54			(52		)	37			11
Total other comprehensive income (loss), net of tax	(361		)	668			225			379
Comprehensive income (loss) including noncontrolling interest	742			1,793			3,608			3,599
Comprehensive (income) loss attributable to noncontrolling interest	(32		)	(37		)	(75		)	(93		)
Comprehensive income (loss) attributable to 3M	$	710		$	1,756		$	3,533		$	3,506

Components of Comprehensive Income (Loss) Attributable to 3M

	Three months endedSeptember 30,						Nine months endedSeptember 30,
(Millions)	2011			2010			2011			2010
Net income attributable to 3M	$	1,088		$	1,106		$	3,329		$	3,157
Cumulative translation	(489		)	586			(63		)	185
Tax effect	(18		)	65			29			2
Cumulative translation - net of tax	(507		)	651			(34		)	187
Defined benefit pension and postretirement plans adjustment	120			75			358			231
Tax effect	(43		)	(27		)	(152		)	(85		)
Defined benefit pension and postretirement plans adjustment - net of tax	77			48			206			146
Debt and equity securities, unrealized gain (loss)	(3		)	3			(8		)	7
Tax effect	1			—			3			(2		)
Debt and equity securities, unrealized gain (loss) - net of tax	(2		)	3			(5		)	5
Cash flow hedging instruments, unrealized gain (loss)	85			(84		)	59			16
Tax effect	(31		)	32			(22		)	(5		)
Cash flow hedging instruments, unrealized gain (loss) - net of tax	54			(52		)	37			11
Total comprehensive income (loss) attributable to 3M	$	710		$	1,756		$	3,533		$	3,506

Reclassification adjustments are made to avoid double counting in comprehensive income items that are also recorded as part of net income. Reclassifications to earnings from accumulated other comprehensive income including noncontrolling interest that related to pension and postretirement expense in the income statement were $117 million pre-tax ($77 million after-tax) for the three months ended September 30, 2011, $355 million pre-tax ($207 million after-tax) for the nine months ended September 30, 2011, $77 million pre-tax ($48 million after-tax) for the three months ended September 30, 2010, and $231 million pre-tax ($147 million after-tax) for the nine months ended September 30, 2010. These pension and postretirement expense pre-tax amounts (including noncontrolling interest) are shown in the tables in Note 8 as

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amortization of transition (asset) obligation, amortization of prior service cost (benefit) and amortization of net actuarial (gain) loss. Cash flow hedging instruments reclassifications are provided in Note 9. Reclassifications to earnings from accumulated other comprehensive income for debt and equity securities were not material for the three and nine months ended September 30, 2011 and 2010. Other reclassification adjustments were not material. Income taxes are not provided for foreign translation relating to permanent investments in international subsidiaries, but tax effects within cumulative translation does include impacts from items such as net investment hedge transactions.

Purchase and Sale of Subsidiary Shares and Transfers of Ownership Interests Involving Non-Wholly Owned Subsidiaries

As discussed in Note 2, in early March 2011, 3M acquired a controlling interest in Winterthur Technologie AG (Winterthur), making Winterthur a consolidated subsidiary as of that business acquisition date. Subsequent to this business acquisition date, 3M purchased additional outstanding shares of its Winterthur subsidiary increasing 3M’s ownership interest from approximately 86 percent as of the business acquisition date to approximately 98 percent as of September 30, 2011. The $50 million of cash paid in the first nine months of 2011 as a result of these additional purchases of Winterthur shares was classified as other financing activity in the consolidated statement of cash flows. These additional purchases did not result in a material transfer from noncontrolling interest to 3M Company shareholders’ equity. In addition, during the first nine months of 2011, 3M sold a noncontrolling interest in a newly formed subsidiary for an immaterial amount, which was also classified as other financing activity in the consolidated statement of cash flows.

During the second half of 2009 and the first half of 2010, 3M effected a purchase of subsidiary shares and transfers of ownership interests to align activities in Japan and to simplify the Company’s ownership structure. As a result of these activities, beginning in June 2010 the Company has a wholly owned subsidiary in the region in addition to its majority owned Sumitomo 3M Limited entity (Sumitomo 3M). Because the Company retained its controlling interest in the subsidiaries involved, these activities resulted in changes to 3M Company shareholders’ equity and noncontrolling interest. These activities included the following:

·During the second half of 2009, a wholly owned subsidiary that, in turn, owned a portion of the Company’s majority owned Sumitomo 3M, was transferred to another subsidiary (referred to herein as 3M HC) that was majority, rather than wholly, owned. Sumitomo 3M also owned a portion of 3M HC. As a result of the transaction, 3M’s effective ownership in Sumitomo 3M was reduced from 75 percent to 71.5 percent. The transfer resulted in a decrease in 3M Company shareholders’ equity and an increase in noncontrolling interest of $81 million in the second half of 2009.

·During the first quarter of 2010, majority owned 3M HC which, as a result of the transfer above owned a portion of the Company’s majority owned Sumitomo 3M, transferred this interest to Sumitomo 3M. In addition, Sumitomo 3M purchased a portion of its shares held by its noncontrolling interest, Sumitomo Electric Industries, Ltd. (SEI), by paying cash of 5.8 billion Japanese Yen and entering into a note payable to SEI of 17.4 billion Japanese Yen (approximately $63 million and $188 million, respectively, based on applicable exchange rates at that time). As a result of these transactions, 3M’s effective ownership in Sumitomo 3M was increased from 71.5 percent to 75 percent. The cash paid as a result of the purchase of Sumitomo 3M shares from SEI was classified as other financing activity in the consolidated statement of cash flows. The remainder of the purchase financed by the note payable to SEI was considered non-cash financing activity in the first quarter of 2010. These transactions resulted in an increase in 3M Company shareholders’ equity of $22 million and a decrease in noncontrolling interest of $278 million in the first quarter of 2010.

·During the second quarter of 2010, majority owned Sumitomo 3M transferred its interest in 3M HC to 3M HC. As a result of this transaction, 3M HC became wholly owned by the Company. The transfer resulted in an increase in 3M Company shareholders’ equity and a decrease in noncontrolling interest of $24 million in the second quarter of 2010.

Additionally, 3M acquired the remaining noncontrolling interest of a previously owned majority owned subsidiary for an immaterial amount during the first half of 2010.

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The following table summarizes the effects of the 2010 transactions on equity attributable to 3M Company shareholders for the nine months ended September 30, 2010.

(Millions)	Nine months endedSept. 30, 2010
Net income attributable to 3M	$	3,157
Transfers from noncontrolling interest	46
Change in 3M Company shareholders’ equity from net income attributable to 3M and transfers from noncontrolling interest	$	3,203

NOTE 5.  Income Taxes

The Company files income tax returns in the U.S. federal jurisdiction, and various states and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2003.

The IRS completed its field examination of the Company’s U.S. federal income tax returns for the years 2005 through 2007 in the fourth quarter of 2009. The Company protested certain IRS positions within these tax years and entered into the administrative appeals process with the IRS during the first quarter of 2010. During the first quarter of 2010, the IRS completed its field examination of the Company’s U.S. federal income tax return for the 2008 year. The Company protested certain IRS positions for 2008 and entered into the administrative appeals process with the IRS during the second quarter of 2010. During the first quarter of 2011, the IRS completed its field examination of the Company’s U.S. federal income tax return for the 2009 year. The Company protested certain IRS positions for 2009 and entered into the administrative appeals process with the IRS during the second quarter of 2011. Currently, the Company is under examination by the IRS for its U.S. federal income tax returns for the years 2010 and 2011. It is anticipated that the IRS will complete its examination of the Company for 2010 by the end of the first quarter of 2012, and for 2011 by the end of the first quarter of 2013. As of September 30, 2011, the IRS has not proposed any significant adjustments to the Company’s tax positions for which the Company is not adequately reserved.

During the first quarter of 2010, the Company paid the agreed upon assessments for the 2005 tax year. During the second quarter of 2010, the Company paid the agreed upon assessments for the 2008 tax year. During the second quarter of 2011, the Company received a refund from the IRS for the 2004 tax year. Payments relating to other proposed assessments arising from the 2005 through 2011 examinations may not be made until a final agreement is reached between the Company and the IRS on such assessments or upon a final resolution resulting from the administrative appeals process or judicial action. In addition to the U.S. federal examination, there is also limited audit activity in several U.S. state and foreign jurisdictions.

3M anticipates changes to the Company’s uncertain tax positions due to the closing of the various audit years mentioned above. Currently, the Company is not able to reasonably estimate the amount by which the liability for unrecognized tax benefits will increase or decrease during the next 12 months as a result of the ongoing income tax authority examinations. The total amounts of unrecognized tax benefits that, if recognized, would affect the effective tax rate as of September 30, 2011 and December 31, 2010, respectively, are $319 million and $394 million.

The Company recognizes interest and penalties accrued related to unrecognized tax benefits in tax expense. The Company recognized in the consolidated statement of income on a gross basis approximately $3 million of benefit and $4 million of expense for the three months ended September 30, 2011 and September 30, 2010, respectively, and had an immaterial impact and approximately $5 million of benefit for the nine months ended September 30, 2011 and September 30, 2010, respectively. At September 30, 2011 and December 31, 2010, accrued interest and penalties in the consolidated balance sheet on a gross basis were $58 million and $52 million, respectively. Included in these interest and penalty amounts are interest and penalties related to tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. Because of the impact of deferred tax accounting, other than interest and penalties, the disallowance of the shorter deductibility period would not affect the annual effective tax rate but would accelerate the payment of cash to the taxing authority to an earlier period.

The effective tax rate for the first nine months of 2011 was 28.1 percent, compared to 28.3 percent in the first nine months of 2010, a decrease of 0.2 percent. The first nine months of 2010 includes a one-time income tax charge of $84 million as a result of the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010, which increased the first nine months 2010 effective tax rate by approximately 1.8 percent. Since future anticipated retiree health care liabilities and related tax subsidies were already

17

reflected in 3M’s financial statements, the change in law resulted in a reduction of the value of the company’s deferred tax asset related to the subsidy. Other factors on a combined net basis increased the effective tax rate for the first nine months of 2011 when compared to the first nine months of 2010 by 1.6 percent, with the most significant item related to international taxes. This was due primarily to the one-time 2010 tax benefits resulting from the corporate alignment transactions that allowed the Company to increase its ownership of a foreign subsidiary. These transactions are described in the section of Note 4 entitled “Purchase and Sale of Subsidiary Shares and Transfers of Ownership Interests Involving Non-Wholly Owned Subsidiaries”. In addition to the transaction noted above, a corporate reorganization of a wholly owned subsidiary provided a one-time benefit to international taxes in the second quarter of 2011. The Company’s effective tax rate also benefited during the first nine months of 2011 from the reinstatement of the research and development credit and adjustments to its income tax reserves.

The provision for income taxes is determined using the asset and liability approach. Under this approach, deferred income taxes represent the expected future tax consequences of temporary differences between the carrying amounts and tax basis of assets and liabilities. The Company records a valuation allowance to reduce its deferred tax assets when uncertainty regarding their realizability exits. As of September 30, 2011 and December 31, 2010, the Company had valuation allowances of $128 million on its deferred tax assets.

NOTE 6.  Marketable Securities

The Company invests in agency securities, corporate securities, asset-backed securities, treasury securities and other securities. The following is a summary of amounts recorded on the Consolidated Balance Sheet for marketable securities (current and non-current).

(Millions)	Sept. 30, 2011		Dec. 31, 2010
U.S. government agency securities	$	257	$	246
Foreign government agency securities	—		52
Corporate debt securities	389		280
Commercial paper	138		55
Certificates of deposit/time deposits	117		29
U.S. treasury securities	—		55
U.S. municipal securities	6		20
Asset-backed securities:
Automobile loan related	388		253
Credit card related	144		79
Equipment lease related	35		24
Other	10		8
Asset-backed securities total	577		364
Other securities	2		—
Current marketable securities	$	1,486	$	1,101
U.S. government agency securities	$	132	$	63
Foreign government agency securities	3		3
Corporate debt securities	106		192
U.S. treasury securities	34		44
U.S. municipal securities	3		3
Asset-backed securities:
Automobile loan related	81		144
Credit card related	56		70
Equipment lease related	23		14
Asset-backed securities total	160		228
Auction rate securities	5		7
Non-current marketable securities	$	443	$	540
Total marketable securities	$	1,929	$	1,641

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Classification of marketable securities as current or non-current is dependent upon management’s intended holding period, the security’s maturity date and liquidity considerations based on market conditions. If management intends to hold the securities for longer than one year as of the balance sheet date, they are classified as non-current. At September 30, 2011, gross unrealized losses totaled approximately $11 million (pre-tax), while gross unrealized gains totaled approximately $2 million (pre-tax). At December 31, 2010, gross unrealized losses totaled approximately $9 million (pre-tax), while gross unrealized gains totaled approximately $5 million (pre-tax). Gross realized gains and losses on sales or maturities of marketable securities for the first nine months of 2011 and 2010 were not material. Cost of securities sold use the first in, first out (FIFO) method. Since these marketable securities are classified as available-for-sale securities, changes in fair value will flow through other comprehensive income, with amounts reclassified out of other comprehensive income into earnings upon sale or “other-than-temporary” impairment.

3M reviews impairments associated with its marketable securities in accordance with the measurement guidance provided by ASC 320, Investments-Debt and Equity Securities, when determining the classification of the impairment as “temporary” or “other-than-temporary”. A temporary impairment charge results in an unrealized loss being recorded in the other comprehensive income component of shareholders’ equity. Such an unrealized loss does not reduce net income attributable to 3M for the applicable accounting period because the loss is not viewed as other-than-temporary. The factors evaluated to differentiate between temporary and other-than-temporary include the projected future cash flows, credit ratings actions, and assessment of the credit quality of the underlying collateral, as well as other factors.

The balances at September 30, 2011 for marketable securities by contractual maturity are shown below. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.

(Millions)	Sept. 30, 2011
Due in one year or less	$	1,013
Due after one year through three years	805
Due after three years through five years	96
Due after five years	15
Total marketable securities	$	1,929

3M has a diversified marketable securities portfolio of $1.929 billion as of September 30, 2011. Within this portfolio, current and long-term asset-backed securities (estimated fair value of $737 million) are primarily comprised of interests in automobile loans and credit cards. At September 30, 2011, the asset-backed securities credit ratings were AAA or A-1+, with the exception of two securities rated A1 or A3 with a fair market value of $7 million.

3M’s marketable securities portfolio includes auction rate securities that represent interests in investment grade credit default swaps; however, currently these holdings comprise less than one percent of this portfolio. The estimated fair value of auction rate securities is $5 million at September 30, 2011 and $7 million at December 31, 2010. Gross unrealized losses within accumulated other comprehensive income related to auction rate securities totaled $8 million (pre-tax) at September 30, 2011 and $6 million (pre-tax) at December 31, 2010. As of September 30, 2011, auction rate securities associated with these balances have been in a loss position for more than 12 months. Since the second half of 2007, these auction rate securities failed to auction due to sell orders exceeding buy orders. Liquidity for these auction-rate securities is typically provided by an auction process that resets the applicable interest rate at pre-determined intervals, usually every 7, 28, 35, or 90 days. The funds associated with failed auctions will not be accessible until a successful auction occurs or a buyer is found outside of the auction process. Refer to Note 10 for a table that reconciles the beginning and ending balances of auction rate securities.

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NOTE 7.  Long-Term Debt and Short-Term Borrowings

As discussed in Note 10 in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K), 3M’s Convertible Notes were originally issued on November 15, 2002, with partial redemptions in 2005 and 2007. In September 2011, 3M redeemed all remaining Convertible Notes, which were otherwise due in 2032. As a result, in September 2011, 3M paid out cash of approximately $227 million (with no gain or loss on extinguishment). Of this amount, $24 million was classified as cash flows from operating activities (for accretion/accreted interest on debt), with the remainder classified as cash flows from financing activities (repayment of debt).

The Company has a “well-known seasoned issuer” shelf registration statement, effective August 5, 2011, which registers an indeterminate amount of debt or equity securities for future sales. The Company intends to use the proceeds from future securities sales off this shelf for general corporate purposes. This replaced 3M’s previous shelf registration dated February 17, 2009. In September 2011, in connection with the August 5, 2011 “well-known seasoned issuer” registration statement, 3M established a $3 billion medium-term notes program (Series F), from which 3M issued a five-year $1 billion fixed rate note with a coupon rate of 1.375%. Proceeds will be used for general corporate purposes, including repayment of $800 million (principal amount) of medium-term notes due in November 2011.

In August 2011, 3M entered into a $1.5 billion, five-year multi-currency revolving credit agreement, which replaced the existing agreement that was due to expire in April 2012. This credit agreement includes a provision under which 3M may request an increase of up to $500 million, bringing the total facility up to $2 billion (at the lenders’ discretion). This facility was undrawn at September 30, 2011. Also, in August 2011, 3M entered into a $200 million, one-year letter of credit agreement with HSBC Bank USA. This agreement replaced the sublimit for letters of credit that was previously encompassed in the $1.5 billion five-year facility. As of September 30, 2011, 3M letters of credit issued under this $200 million facility totaled $121 million. An additional $102 million in U.S. letters of credit was outstanding with other banking partners. These letters of credit are utilized in connection with normal business activities. Under both the $1.5 billion and $200 million credit agreements, the Company is required to maintain its EBITDA to Interest Ratio as of the end of each fiscal quarter at not less than 3.0 to 1. This is calculated (as defined in the agreement) as the ratio of consolidated total EBITDA for the four consecutive quarters then ended to total interest expense on all funded debt for the same period. At September 30, 2011, this ratio was approximately 38 to 1.

As disclosed in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K), in the fourth quarter of 2010, the Company entered into a 100.5 million Canadian Dollar loan, with four equal installments due in April 2011, July 2011, October 2011 and January 2012. During March 2011, this loan agreement was amended to increase the loan amount to 201 million Canadian Dollars and to allow for repayment of the total loan in July 2012, instead of in four equal installments. However, 3M has the option to repay the principal amount of this loan before July 2012. All other terms and conditions of the loan agreement remain in full force. In the third quarter of 2011, 3M repaid principal of 50.25 million Canadian Dollars, resulting in a remaining principal amount of 150.75 million Canadian Dollars as of September 30, 2011.

As also disclosed in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K), during the first quarter of 2010, the Company entered into a floating rate note payable of 17.4 billion Japanese Yen (approximately $188 million based on exchange rates at that time) in connection with the purchase of additional interest in the Company’s Sumitomo 3M Limited subsidiary as discussed in Note 4. This note was due in three equal installments of 5.8 billion Japanese Yen, with one installment paid on September 30, 2010, one installment paid on March 30, 2011, and the final installment paid on September 30, 2011. Interest accrued on the note based on the three-month Tokyo Interbank Offered Rate (TIBOR) plus 40 basis points.

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NOTE 8.  Pension and Postretirement Benefit Plans

Components of net periodic benefit cost and other supplemental information for the three-month and nine-month periods ended September 30 follow:

Benefit Plan Information

	Three months ended September 30,
	Qualified and Non-qualifiedPension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Net periodic benefit cost (benefit)
Service cost	$	51		$	50		$	27		$	28		$	16		$	13
Interest cost	157			160			62			62			23			22
Expected return on plan assets	(231		)	(233		)	(70		)	(71		)	(20		)	(20		)
Amortization of transition (asset) obligation	—			—			—			—			—			—
Amortization of prior service cost (benefit)	2			4			(3		)	(1		)	(18		)	(23		)
Amortization of net actuarial (gain) loss	83			55			28			21			25			21
Net periodic benefit cost (benefit)	$	62		$	36		$	44		$	39		$	26		$	13
Settlements, curtailments, special termination benefits and other	—			—			—			—			—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	62		$	36		$	44		$	39		$	26		$	13

	Nine months ended September 30,
	Qualified and Non-qualifiedPension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Net periodic benefit cost (benefit)
Service cost	$	154		$	151		$	83		$	83		$	46		$	41
Interest cost	470			479			186			187			69			66
Expected return on plan assets	(695		)	(697		)	(209		)	(214		)	(59		)	(62		)
Amortization of transition (asset) obligation	—			—			—			1			—			—
Amortization of prior service cost (benefit)	8			10			(10		)	(3		)	(54		)	(70		)
Amortization of net actuarial (gain) loss	250			165			84			64			77			64
Net periodic benefit cost (benefit)	$	187		$	108		$	134		$	118		$	79		$	39
Settlements, curtailments, special termination benefits and other	—			—			—			(22		)	—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	187		$	108		$	134		$	96		$	79		$	39

For the nine months ended September 30, 2011, contributions totaling $310 million were made to the Company’s U.S. and international pension plans and $63 million to its postretirement plans. For total year 2011, the Company plans to contribute in the range of $500 million to $600 million to its U.S. and international pension and postretirement plans. The Company does not have a required minimum pension contribution obligation for its U.S. plans in 2011. Therefore, the amount of the anticipated discretionary pension contribution could vary significantly depending on the U.S. plans’ funded status and the anticipated tax deductibility of the contribution. Future contributions will also depend on market conditions, interest rates and other factors. 3M’s annual measurement date for pension and postretirement assets and liabilities is December 31 each year, which is also the date used for the related annual measurement assumptions.

In June 2010, 3M’s Brazilian subsidiary received approval from the government in Brazil to freeze its defined benefit pension plan. Effective March 31, 2010, participants in this subsidiary’s pension plan no longer accrue additional pension benefits. As a result, the Company recorded a $22 million curtailment gain in the second quarter of 2010.

3M was informed during the first quarter of 2009 that the general partners of WG Trading Company, in which 3M’s benefit plans hold limited partnership interests, are the subject of a criminal investigation as well as civil proceedings by the SEC

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and CFTC (Commodity Futures Trading Commission). In March 2011, over the objections of 3M and six other limited partners of WG Trading Company, the district court judge ruled in favor of the court appointed receiver’s proposed distribution plan. In April 2011, the 3M benefit plans received their share under the court-ordered distribution plan. 3M and six other limited partners of WG Trading Company have appealed the court’s order to the United States Court of Appeals for the Second Circuit. The benefit plan trustee holdings of WG Trading Company interests were adjusted to reflect the decreased estimated fair market value, inclusive of estimated insurance proceeds, as of the annual measurement dates. The Company has insurance that it believes, based on what is currently known, will result in the recovery of a portion of the decrease in original asset value. As of the 2010 measurement date these holdings represented less than one percent of 3M’s fair value of total plan assets. 3M currently believes that the resolution of these events will not have a material adverse effect on the consolidated financial position of the Company.

NOTE 9.  Derivatives

The Company uses interest rate swaps, currency swaps, commodity price swaps, and forward and option contracts to manage risks generally associated with foreign exchange rate, interest rate and commodity price fluctuations. The information that follows explains the various types of derivatives and financial instruments used by 3M, how and why 3M uses such instruments, how such instruments are accounted for, and how such instruments impact 3M’s financial position and performance.

Additional information with respect to the impacts on other comprehensive income of nonderivative hedging and derivative instruments is included in Note 4. Additional information with respect to the fair value of derivative instruments is included in Note 10. References to information regarding derivatives and/or hedging instruments associated with the Company’s long-term debt are also made in Note 10 to the Consolidated Financial Statements in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K).

Types of Derivatives/Hedging Instruments and Inclusion in Income/Other Comprehensive Income

Cash Flow Hedges:

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain or loss on the derivative is reported as a component of other comprehensive income and reclassified into earnings in the same period during which the hedged transaction affects earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current earnings.

Cash Flow Hedging - Foreign Currency Forward and Option Contracts: The Company enters into foreign exchange forward and option contracts to hedge against the effect of exchange rate fluctuations on cash flows denominated in foreign currencies and certain intercompany financing transactions. These transactions are designated as cash flow hedges. The settlement or extension of these derivatives will result in reclassifications (from accumulated other comprehensive income) to earnings in the period during which the hedged transactions affect earnings. Generally, 3M dedesignates these cash flow hedge relationships in advance of the occurrence of the forecasted transaction. The portion of gains or losses on the derivative instrument previously accumulated in other comprehensive income for dedesignated hedges remains in accumulated other comprehensive income until the forecasted transaction occurs. Changes in the value of derivative instruments after dedesignation are recorded in earnings and are included in the Derivatives Not Designated as Hedging Instruments section below. Hedge ineffectiveness and the amount excluded from effectiveness testing recognized in income on cash flow hedges were not material for the three and nine month periods ended September 30, 2011 and 2010. The maximum length of time over which 3M hedges its exposure to the variability in future cash flows for a majority of the forecasted transactions is 12 months and, accordingly, at September 30, 2011, the majority of the Company’s open foreign exchange forward and option contracts had maturities of one year or less. The dollar equivalent gross notional amount of the Company’s foreign exchange forward and option contracts designated as cash flow hedges at September 30, 2011 was approximately $4.2 billion.

Cash Flow Hedging - Commodity Price Management: The Company manages commodity price risks through negotiated supply contracts, price protection agreements and forward physical contracts. The Company uses commodity price swaps relative to natural gas as cash flow hedges of forecasted transactions to manage price volatility. The related mark-to-market gain or loss on qualifying hedges is included in other comprehensive income to the extent effective, and reclassified into cost of sales in the period during which the hedged transaction affects earnings. Generally, the length of time over which 3M hedges its exposure to the variability in future cash flows for its forecasted natural gas transactions is 12 months. No significant commodity cash flow hedges were discontinued and hedge ineffectiveness was not material for the three and nine month periods ended September 30, 2011 and 2010. The dollar equivalent gross notional amount of

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the Company’s natural gas commodity price swaps designated as cash flow hedges at September 30, 2011 was $31 million.

Cash Flow Hedging - Forecasted Debt Issuance: In August 2011, in anticipation of the September 2011 issuance of $1 billion in five-year fixed rate notes, 3M executed a pre-issuance cash flow hedge on a notional amount of $400 million by entering into a forward-starting five-year floating-to-fixed interest rate swap. Upon debt issuance in September 2011, 3M terminated the floating-to-fixed interest rate swap. The termination of the swap resulted in a $7 million pre-tax loss ($4 million after-tax) that will be amortized over the five-year life of the note.

As of September 30, 2011, the Company had a balance of $5 million associated with the after tax net unrealized gain associated with cash flow hedging instruments recorded in accumulated other comprehensive income. This includes a $4 million balance (loss) related to a floating-to-fixed interest rate swap (discussed in the preceding paragraph), which will be amortized over the five-year life of the note. 3M expects to reclassify a majority of the remaining balance to earnings over the next 12 months (with the impact offset by cash flows from underlying hedged items).

The location in the consolidated statements of income and comprehensive income and amounts of gains and losses related to derivative instruments designated as cash flow hedges are provided in the following table. Reclassifications of amounts from accumulated other comprehensive income into income include accumulated gains (losses) on dedesignated hedges at the time earnings are impacted by the forecasted transaction.

Three months ended September 30, 2011(Millions)	Pretax Gain (Loss)Recognized in OtherComprehensive Income onEffective Portion ofDerivative			Pretax Gain (Loss) Recognizedin Income on Effective Portionof Derivative as a Result ofReclassification fromAccumulated OtherComprehensive Income				Ineffective Portion of Gain(Loss) on Derivative andAmount Excluded fromEffectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	49		Cost of sales	$	(41	)	Cost of sales	$	—
Foreign currency forward contracts	(56		)	Interest expense	(56		)	Interest expense	—
Commodity price swap contracts	2			Cost of sales	—			Cost of sales	—
Interest rate swap contracts	(7		)	Interest expense	—			Interest expense	—
Total	$	(12	)		$	(97	)		$	—

Nine months ended September 30, 2011(Millions)	Pretax Gain (Loss)Recognized in OtherComprehensive Income onEffective Portion ofDerivative			Pretax Gain (Loss) Recognizedin Income on Effective Portionof Derivative as a Result ofReclassification fromAccumulated OtherComprehensive Income				Ineffective Portion of Gain(Loss) on Derivative andAmount Excluded fromEffectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(12	)	Cost of sales	$	(75	)	Cost of sales	$	—
Foreign currency forward contracts	(55		)	Interest expense	(54		)	Interest expense	—
Commodity price swap contracts	—			Cost of sales	(4		)	Cost of sales	—
Interest rate swap contracts	(7		)	Interest expense	—			Interest expense	—
Total	$	(74	)		$	(133	)		$	—

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Three months ended September 30, 2010(Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(76	)	Cost of sales	$	5		Cost of sales	$	—
Foreign currency forward contracts	108			Interest expense	108			Interest expense	—
Commodity price swap contracts	(6		)	Cost of sales	(3		)	Cost of sales	—
Total	$	26			$	110			$	—

Nine months ended September 30, 2010(Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(25	)	Cost of sales	$	(48	)	Cost of sales	$	—
Foreign currency forward contracts	41			Interest expense	41			Interest expense	—
Commodity price swap contracts	(13		)	Cost of sales	(6		)	Cost of sales	—
Total	$	3			$	(13	)		$	—

Fair Value Hedges:

For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivatives as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in current earnings.

Fair Value Hedging - Interest Rate Swaps: The Company manages interest expense using a mix of fixed and floating rate debt. To help manage borrowing costs, the Company may enter into interest rate swaps. Under these arrangements, the Company agrees to exchange, at specified intervals, the difference between fixed and floating interest amounts calculated by reference to an agreed-upon notional principal amount. The mark-to-market of these fair value hedges is recorded as gains or losses in interest expense and is offset by the gain or loss of the underlying debt instrument, which also is recorded in interest expense. These fair value hedges are highly effective and, thus, there is no impact on earnings due to hedge ineffectiveness. The dollar equivalent (based on inception date foreign currency exchange rates) gross notional amount of the Company’s interest rate swaps at September 30, 2011 was $1.1 billion.

At September 30, 2011, the Company had interest rate swaps designated as fair value hedges of underlying fixed rate obligations. In July 2007, in connection with the issuance of a seven-year Eurobond for an amount of 750 million Euros, the Company completed a fixed-to-floating interest rate swap on a notional amount of 400 million Euros as a fair value hedge of a portion of the fixed interest rate Eurobond obligation. In August 2010, the Company terminated 150 million Euros of the notional amount of this swap. As a result, a gain of 18 million Euros, recorded as part of the balance of the underlying debt, will be amortized over this debt’s remaining life. The Company also has two fixed-to-floating interest rate swaps with an aggregate notional amount of $800 million designated as fair value hedges of the fixed interest rate obligation under its $800 million, three-year, 4.50% notes issued in October 2008.

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The location in the consolidated statements of income and amounts of gains and losses related to derivative instruments designated as fair value hedges and similar information relative to the hedged items are as follows:

Three months ended September 30, 2011(Millions)	Gain (Loss) on DerivativeRecognized in Income			Gain (Loss) on Hedged ItemRecognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount		Location	Amount
Interest rate swap contracts	Interest expense	$	1	Interest expense	$	(1	)
Total		$	1		$	(1	)

Nine months ended September 30, 2011(Millions)	Gain (Loss) on DerivativeRecognized in Income				Gain (Loss) on Hedged ItemRecognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(7	)	Interest expense	$	7
Total		$	(7	)		$	7

Three months ended September 30, 2010 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(16	)	Interest expense	$	16
Total		$	(16	)		$	16

Nine months ended September 30, 2010 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(6	)	Interest expense	$	6
Total		$	(6	)		$	6

Net Investment Hedges:

As circumstances warrant, the Company uses cross currency swaps, forwards and foreign currency denominated debt to hedge portions of the Company’s net investments in foreign operations. For hedges that meet the effectiveness requirements, the net gains or losses attributable to changes in spot exchange rates are recorded in cumulative translation within other comprehensive income. The remainder of the change in value of such instruments is recorded in earnings. Recognition in earnings of amounts previously recorded in cumulative translation is limited to circumstances such as complete or substantially complete liquidation of the net investment in the hedged foreign operation. At September 30, 2011, there were no cross currency swaps and foreign currency forward contracts designated as net investment hedges.

In addition to the derivative instruments used as hedging instruments in net investment hedges, 3M also uses foreign currency denominated debt as nonderivative hedging instruments in certain net investment hedges. In July and December 2007, the Company issued seven-year fixed rate Eurobond securities for amounts of 750 million Euros and 275 million Euros, respectively. 3M designated each of these Eurobond issuances as hedging instruments of the Company’s net investment in its European subsidiaries.

The location in the consolidated statements of income and comprehensive income and amounts of gains and losses related to derivative and nonderivative instruments designated as net investment hedges are as follows. There were no reclassifications of the effective portion of net investment hedges out of accumulated other comprehensive income into income for the periods presented in the table below.

Three months ended September 30, 2011(Millions)Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument		Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount		Location	Amount
Foreign currency denominated debt	$	85	N/A	$	—
Total	$	85		$	—

Nine months ended September 30, 2011(Millions)Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument			Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in  Income
Net Investment Hedging Relationships	Amount			Location	Amount
Foreign currency denominated debt	$	(35	)	N/A	$	—
Total	$	(35	)		$	—

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Three months ended September 30, 2010(Millions)Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument			Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount			Location	Amount
Foreign currency denominated debt	$	(148	)	N/A	$	—
Total	$	(148	)		$	—

Nine months ended September 30, 2010(Millions)Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument		Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount		Location	Amount
Foreign currency denominated debt	$	77	N/A	$	—
Total	$	77		$	—

Derivatives Not Designated as Hedging Instruments:

Derivatives not designated as hedging instruments include dedesignated foreign currency forward and option contracts that formerly were designated in cash flow hedging relationships (as referenced in the preceding Cash Flow Hedges section). In addition, 3M enters into foreign currency forward contracts and commodity price swaps to offset, in part, the impacts of certain intercompany activities (primarily associated with intercompany licensing arrangements) and fluctuations in costs associated with the use of certain precious metals, respectively. These derivative instruments are not designated in hedging relationships; therefore, fair value gains and losses on these contracts are recorded in earnings. The dollar equivalent gross notional amount of these forward, option and swap contracts not designated as hedging instruments totaled $1.1 billion as of September 30, 2011. The Company does not hold or issue derivative financial instruments for trading purposes.

The location in the consolidated statements of income and amounts of gains and losses related to derivative instruments not designated as hedging instruments are as follows:

(Millions)	Three months ended Sept. 30, 2011 Gain (Loss) on Derivative Recognized in Income			Nine months ended Sept. 30, 2011 Gain (Loss) on Derivative Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount		Location	Amount
Foreign currency forward/option contracts	Cost of sales	$	32	Cost of sales	$	4
Foreign currency forward contracts	Interest expense	6		Interest expense	18
Total		$	38		$	22

(Millions)	Three months ended Sept. 30, 2010 Gain (Loss) on Derivative Recognized in Income				Nine months ended Sept. 30, 2010 Gain (Loss) on Derivative Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount			Location	Amount
Foreign currency forward/option contracts	Cost of sales	$	(38	)	Cost of sales	$	(12	)
Foreign currency forward contracts	Interest expense	(7		)	Interest expense	(18		)
Total		$	(45	)		$	(30	)

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Location and Fair Value Amount of Derivative Instruments

The following tables summarize the fair value of 3M’s derivative instruments, excluding nonderivative instruments used as hedging instruments, and their location in the consolidated balance sheet.

September 30, 2011 (Millions)	Assets			Liabilities
Fair Value of Derivative Instruments	Location	Amount		Location	Amount
Derivatives designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	65	Other current liabilities	$	31
Commodity price swap contracts	Other current assets	—		Other current liabilities	4
Interest rate swap contracts	Other assets	31		Other liabilities	—
Total derivatives designated as hedging instruments		$	96		$	35
Derivatives not designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	18	Other current liabilities	$	11
Total derivatives not designated as hedging instruments		$	18		$	11
Total derivative instruments		$	114		$	46

December 31, 2010 (Millions)	Assets			Liabilities
Fair Value of Derivative Instruments	Location	Amount		Location	Amount
Derivatives designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	26	Other current liabilities	$	48
Commodity price swap contracts	Other current assets	—		Other current liabilities	5
Interest rate swap contracts	Other assets	39		Other liabilities	—
Total derivatives designated as hedging instruments		$	65		$	53
Derivatives not designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	12	Other current liabilities	$	34
Total derivatives not designated as hedging instruments		$	12		$	34
Total derivative instruments		$	77		$	87

Additional information with respect to the fair value of derivative instruments is included in Note 10.

Currency Effects and Credit Risk

Currency Effects: 3M estimates that year-on-year currency effects, including hedging impacts, increased net income attributable to 3M by approximately $51 million for the three months ended September 30, 2011 and increased net income attributable to 3M by approximately $131 million for the nine months ended September 30, 2011. This estimate includes the effect of translating profits from local currencies into U.S. dollars and the impact of currency fluctuations on the transfer of goods between 3M operations in the United States and abroad. This estimate also includes year-on-year currency effects from transaction gains and losses, including derivative instruments designed to reduce foreign currency exchange rate risks, which 3M estimates increased net income attributable to 3M by approximately $18 million for the three months ended September 30, 2011 and decreased net income attributable to 3M by approximately $8 million for the nine months ended September 30, 2011.

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Credit risk: The Company is exposed to credit loss in the event of nonperformance by counterparties in interest rate swaps, currency swaps, commodity price swaps, and forward and option contracts. However, the Company’s risk is limited to the fair value of the instruments. The Company actively monitors its exposure to credit risk through the use of credit approvals and credit limits, and by selecting major international banks and financial institutions as counterparties. The Company does not anticipate nonperformance by any of these counterparties. 3M has credit support agreements in place with two of its primary derivatives counterparties. Under these agreements, either party is required to post eligible collateral when the market value of transactions covered by these agreements exceeds specified thresholds, thus limiting credit exposure for both parties.

NOTE 10.  Fair Value Measurements

3M follows ASC 820, Fair Value Measurements and Disclosures, with respect to assets and liabilities that are measured at fair value on a recurring basis and nonrecurring basis. Under the standard, fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. The standard also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the factors market participants would use in valuing the asset or liability developed based upon the best information available in the circumstances. The hierarchy is broken down into three levels. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Assets and Liabilities that are Measured at Fair Value on a Recurring Basis:

For 3M, assets and liabilities that are measured at fair value on a recurring basis primarily relate to available-for-sale marketable securities, available-for-sale investments (included as part of investments in the Consolidated Balance Sheet) and certain derivative instruments. Derivatives include cash flow hedges, interest rate swaps and most net investment hedges. The information in the following paragraphs and tables primarily addresses matters relative to these financial assets and liabilities. Separately, there were no material fair value measurements with respect to nonfinancial assets or liabilities that are recognized or disclosed at fair value in the Company’s financial statements on a recurring basis for the three and nine month periods ended September 30, 2011 and 2010.

3M uses various valuation techniques, which are primarily based upon the market and income approaches, with respect to financial assets and liabilities. Following is a description of the valuation methodologies used for the respective financial assets and liabilities measured at fair value.

Available-for-sale marketable securities — except auction rate securities:

Marketable securities, except auction rate securities, are valued utilizing multiple sources. A weighted average price is used for these securities. Market prices are obtained for these securities from a variety of industry standard data providers, security master files from large financial institutions, and other third-party sources. These multiple prices are used as inputs into a distribution-curve-based algorithm to determine the daily fair value to be used. 3M classifies U.S. treasury securities as level 1, while all other marketable securities (excluding auction rate securities) are classified as level 2. Marketable securities are discussed further in Note 6.

Available-for-sale marketable securities — auction rate securities only:

As discussed in Note 6, auction rate securities held by 3M failed to auction since the second half of 2007. As a result, investments in auction rate securities are valued utilizing third-party indicative bid levels in markets that are not active and broker-dealer valuation models that utilize inputs such as current/forward interest rates, current market conditions and credit default swap spreads. 3M classifies these securities as level 3.

Available-for-sale investments:

Investments include equity securities that are traded in an active market. Closing stock prices are readily available from active markets and are used as being representative of fair value. 3M classifies these securities as level 1.

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Derivative instruments:

The Company’s derivative assets and liabilities within the scope of ASC 815, Derivatives and Hedging, are required to be recorded at fair value. The Company’s derivatives that are recorded at fair value include foreign currency forward and option contracts, commodity price swaps, interest rate swaps, and net investment hedges where the hedging instrument is recorded at fair value. Net investment hedges that use foreign currency denominated debt to hedge 3M’s net investment are not impacted by the fair value measurement standard under ASC 820, as the debt used as the hedging instrument is marked to a value with respect to changes in spot foreign currency exchange rates and not with respect to other factors that may impact fair value.

3M has determined that foreign currency forwards and commodity price swaps will be considered level 1 measurements as these are traded in active markets which have identical asset or liabilities, while currency swaps, foreign currency options, interest rate swaps and cross-currency swaps will be considered level 2. For level 2 derivatives, 3M uses inputs other than quoted prices that are observable for the asset. These inputs include foreign currency exchange rates, volatilities, and interest rates. The level 2 derivative positions are primarily valued using standard calculations/models that use as their basis readily observable market parameters. Industry standard data providers are 3M’s primary source for forward and spot rate information for both interest rates and currency rates, with resulting valuations periodically validated through third-party or counterparty quotes and a net present value stream of cash flows model.

The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis.

	Fair Value
(Millions)	at Sept. 30,		Fair Value Measurements Using Inputs Considered as
Description	2011		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
U.S. government agency securities	$	389	$	—	$	389	$	—
Foreign government agency securities	3		—		3		—
Corporate debt securities	495		—		495		—
Certificates of deposit/time deposits	117		—		117		—
Commercial paper	138		—		138		—
Asset-backed securities:
Automobile loan related	469		—		469		—
Credit card related	200		—		200		—
Equipment lease related	58		—		58		—
Other	10		—		10		—
U.S. treasury securities	34		34		—		—
U.S. municipal securities	9		—		9		—
Auction rate securities	5		—		—		5
Other securities	2		—		2		—
Investments	5		5		—		—
Derivative instruments — assets:
Foreign currency forward/option contracts	83		76		7		—
Interest rate swap contracts	31		—		31		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	42		42		—		—
Commodity price swap contracts	4		4		—		—

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	Fair Value
(Millions)	at Dec. 31,		Fair Value Measurements Using Inputs Considered as
Description	2010		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
U.S. government agency securities	$	309	$	—	$	309	$	—
Foreign government agency securities	55		—		55		—
Corporate debt securities	472		—		472		—
Certificates of deposit/time deposits	29		—		29		—
Commercial paper	55		—		55		—
Asset-backed securities:
Automobile loan related	397		—		397		—
Credit card related	149		—		149		—
Equipment lease related	38		—		38		—
Other	8		—		8		—
U.S. treasury securities	99		99		—		—
U.S. municipal securities	23		—		23		—
Auction rate securities	7		—		—		7
Investments	21		21		—		—
Derivative instruments — assets:
Foreign currency forward/option contracts	38		36		2		—
Interest rate swap contracts	39		—		39		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	82		82		—		—
Commodity price swap contracts	5		5		—		—

The following table provides a reconciliation of the beginning and ending balances of items measured at fair value on a recurring basis in the table above that used significant unobservable inputs (Level 3).

(Millions)	Three months endedSeptember 30,						Nine months endedSeptember 30,
Marketable securities — auction rate securities only	2011			2010			2011			2010
Beginning balance	$	8		$	7		$	7		$	5
Total gains or losses:
Included in earnings	—			—			—			—
Included in other comprehensive income	(3		)	(1		)	(2		)	1
Purchases, issuances, and settlements	—			—			—			—
Transfers in and/or out of Level 3	—			—			—			—
Ending balance (September 30)	5			6			5			6
Additional losses included in earnings due to reclassifications from other comprehensive income for:
Securities sold during the period ended September 30	—			—			—			—
Securities still held at September 30	—			—			—			—

In addition, the plan assets of 3M’s pension and postretirement benefit plans are measured at fair value on a recurring basis (at least annually). Refer to Note 11 in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K).

Assets and Liabilities that are Measured at Fair Value on a Nonrecurring Basis:

Disclosures are required for certain assets and liabilities that are measured at fair value, but are recognized and disclosed at fair value on a nonrecurring basis in periods subsequent to initial recognition. For 3M, such measurements of fair value relate primarily to long-lived asset impairments. There were no material long-lived asset impairments for the three and nine months ended September 30, 2011 and 2010.

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Fair Value of Financial Instruments:

The Company’s financial instruments include cash and cash equivalents, marketable securities, accounts receivable, certain investments, accounts payable, borrowings, and derivative contracts. The fair values of cash and cash equivalents, accounts receivable, accounts payable, and short-term borrowings and current portion of long-term debt approximated carrying values because of the short-term nature of these instruments. Available-for-sale marketable securities and investments, in addition to certain derivative instruments, are recorded at fair values as indicated in the preceding disclosures. The Company utilized third-party quotes to estimate fair values for its long-term debt. Information with respect to the carrying amounts and estimated fair values of these financial instruments follow:

	September 30, 2011				Dec. 31, 2010
(Millions)	CarryingAmount		FairValue		CarryingAmount		FairValue
Long-term debt, excluding current portion	$	4,955	$	5,305	$	4,183	$	4,466

The fair values reflected above consider the terms of the related debt absent the impacts of derivative/hedging activity. The carrying amount of long-term debt referenced above is impacted by certain fixed-to-floating interest rate swaps that are designated as fair value hedges and by the designation of fixed rate Eurobond securities issued by the Company as hedging instruments of the Company’s net investment in its European subsidiaries. 3M’s fixed-rate bonds were trading at a premium at September 30, 2011 and December 31, 2010 due to the low interest rates and tightening of 3M’s credit spreads.

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NOTE 11.  Commitments and Contingencies

Legal Proceedings:

The Company and some of its subsidiaries are involved in numerous claims and lawsuits, principally in the United States, and regulatory proceedings worldwide. These include various products liability (involving products that the Company now or formerly manufactured and sold), intellectual property, and commercial claims and lawsuits, including those brought under the antitrust laws, and environmental proceedings. Unless otherwise stated, the Company is vigorously defending all such litigation. Additional information can be found in Note 14 “Commitments and Contingencies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2010, as updated by the Company’s Current Report on Form 8-K dated May 26, 2011, including information about the Company’s process for disclosure and recording of liabilities and insurance receivables related to legal proceedings.

The following table shows the major categories of significant legal matters — respirator mask/asbestos litigation (including Aearo), environmental remediation and other environmental liabilities — for which the Company has been able to estimate its probable liability and for which the Company has taken reserves and the related insurance receivables:

Liability and Receivable Balances	Sept. 30,		Dec. 31,
(Millions)	2011		2010
Respirator mask/asbestos liabilities	$	105	$	126
Respirator mask/asbestos insurance receivables	119		122
Environmental remediation liabilities	$	29	$	24
Environmental remediation insurance receivables	15		15
Other environmental liabilities	$	80	$	90

The following sections first describe the significant legal proceedings in which the Company is involved, and then describe the liabilities and associated insurance receivables the Company has accrued relating to its significant legal proceedings.

Respirator Mask/Asbestos Litigation

As of September 30, 2011, the Company is a named defendant, with multiple co-defendants, in numerous lawsuits in various courts that purport to represent approximately 2,190 individual claimants compared to approximately 2,148 individual claimants with actions pending at December 31, 2010.

The vast majority of the lawsuits and claims resolved by and currently pending against the Company allege use of some of the Company’s mask and respirator products and seek damages from the Company and other defendants for alleged personal injury from workplace exposures to asbestos, silica, coal mine dust or other occupational dusts found in products manufactured by other defendants or generally in the workplace. A minority of claimants generally allege personal injury from occupational exposure to asbestos from products previously manufactured by the Company, which are often unspecified, as well as products manufactured by other defendants, or occasionally at Company premises.

The Company’s current volume of new and pending matters is substantially lower than its historical experience. The Company expects that filing of claims by unimpaired claimants in the future will continue to be at much lower levels than in the past. Accordingly, the number of claims alleging more serious injuries, including mesothelioma and other malignancies, while remaining relatively constant and consistent with historical experience, will represent a greater percentage of total claims than in the past. The Company has prevailed in all nine cases taken to trial, including seven of the eight cases tried to verdict (such trials occurred in 1999, 2000, 2001, 2003, 2004, and 2007), and an appellate reversal in 2005 of the 2001 jury verdict adverse to the Company. The ninth case, tried in 2009, was dismissed by the Court at the close of plaintiff’s evidence, based on the Court’s legal finding that the plaintiff had not presented sufficient evidence to support a jury verdict. This case is being appealed by the plaintiffs and briefing is complete and the parties are waiting for the court to set a hearing date for oral argument.

The Company has demonstrated in these past trial proceedings that its respiratory protection products are effective as claimed when used in the intended manner and in the intended circumstances. Consequently the Company believes that claimants are unable to establish that their medical conditions, even if significant, are attributable to the Company’s respiratory protection products. Nonetheless the Company’s litigation experience indicates that claims of persons with malignant conditions are costlier to resolve than the claims of unimpaired persons, and it therefore believes the average

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cost of resolving pending and future claims on a per-claim basis will continue to be higher than it experienced in prior periods when the vast majority of claims were asserted by the unimpaired.

As previously reported, the State of West Virginia, through its Attorney General, filed a complaint in 2003 against the Company and two other manufacturers of respiratory protection products in the Circuit Court of Lincoln County, West Virginia and amended its complaint in 2005. The amended complaint seeks substantial, but unspecified, compensatory damages primarily for reimbursement of the costs allegedly incurred by the State for worker’s compensation and healthcare benefits provided to all workers with occupational pneumoconiosis and unspecified punitive damages. While the case has been inactive since the fourth quarter of 2007, the Court held a case management conference in March 2011, but no further activity has occurred in the case since that conference. No liability has been recorded for this matter because the Company believes that liability is not probable and estimable at this time. In addition, the Company is not able to estimate a possible loss or range of loss given the minimal activity in this case and the fact that the complaint asserts claims against two other manufacturers where a defendant’s share of liability may turn on the law of joint and several liability and by the amount of fault a jury allocates to each defendant if a case is ultimately tried.

Respirator Mask/Asbestos Liabilities and Insurance Receivables: The Company estimates its respirator mask/asbestos liabilities, including the cost to resolve the claims and defense costs, by examining: (i) the Company’s experience in resolving claims, (ii) apparent trends, (iii) the apparent quality of claims (e.g., whether the claim has been asserted on behalf of asymptomatic claimants), (iv) changes in the nature and mix of claims (e.g., the proportion of claims asserting usage of the Company’s mask or respirator products and alleging exposure to each of asbestos, silica, coal or other occupational dusts, and claims pleading use of asbestos-containing products allegedly manufactured by the Company), (v) the number of current claims and a projection of the number of future asbestos and other claims that may be filed against the Company, (vi) the cost to resolve recently settled claims, and (vii) an estimate of the cost to resolve and defend against current and future claims.

Developments may occur that could affect the Company’s estimate of its liabilities. These developments include, but are not limited to, significant changes in (i) the number of future claims, (ii) the average cost of resolving claims, (iii) the legal costs of defending these claims and in maintaining trial readiness, (iv) changes in the mix and nature of claims received, (v) trial and appellate outcomes, (vi) changes in the law and procedure applicable to these claims, and (vii) the financial viability of other co-defendants and insurers.

As of September 30, 2011, the Company had reserves for respirator mask/asbestos liabilities of $75 million (excluding Aearo reserves). The Company cannot estimate the amount or range of amounts by which the liability may exceed the reserve the Company has established because of the (i) inherent difficulty in projecting the number of claims that have not yet been asserted, particularly with respect to the Company’s respiratory products that themselves did not contain any harmful materials, (ii) the complaints nearly always assert claims against multiple defendants where the damages alleged are typically not attributed to individual defendants so that a defendant’s share of liability may turn on the law of joint and several liability, which can vary by state, (iii) the multiple factors described above that the Company considers in estimating its liabilities, and (iv) the several possible developments described above that may occur that could affect the Company’s estimate of liabilities.

As of September 30, 2011, the Company’s receivable for insurance recoveries related to the respirator mask/asbestos litigation was $119 million.

Various factors could affect the timing and amount of recovery of this receivable, including (i) delays in or avoidance of payment by insurers; (ii) the extent to which insurers may become insolvent in the future, and (iii) the outcome of negotiations with insurers and legal proceedings with respect to respirator mask/asbestos liability insurance coverage. The difference between the accrued liability and insurance receivable represents in part the time delay between payment of claims on the one hand and receipt of insurance reimbursements on the other hand. Because of the lag time between settlement and payment of a claim, no meaningful conclusions may be drawn from quarterly or annual changes in the amount of receivables for expected insurance recoveries or changes in the number of claimants.

As previously reported, on January 5, 2007 the Company was served with a declaratory judgment action filed on behalf of two of its insurers (Continental Casualty and Continental Insurance Co. — both part of the Continental Casualty Group) disclaiming coverage for respirator mask/asbestos claims. These insurers represent approximately $14 million of the $119 million insurance recovery receivable referenced in the above table. The action, pending in the District Court in Ramsey County, Minnesota, seeks declaratory judgment regarding coverage provided by the policies and the allocation of covered costs among the policies issued by the various insurers. The action named, in addition to the Company, over 60 of the Company’s insurers. This action is similar in nature to an action filed in 1994 with respect to breast implant coverage, which ultimately resulted in the Minnesota Supreme Court’s ruling of 2003 that was largely in the Company’s favor. The plaintiff insurers have served an amended complaint that names some additional insurers and deletes others. A significant number of the insurer defendants named in the amended complaint have been dismissed because of settlements they

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have reached with 3M regarding the matters at issue in the lawsuit. The case is currently in the discovery phase. Trial is scheduled to begin in the fall of 2012.

Respirator Mask/Asbestos Litigation – Aearo Technologies

On April 1, 2008, a subsidiary of the Company purchased the stock of Aearo Holding Corp., the parent of Aearo Technologies (“Aearo”). Aearo manufactures and sells various products, including personal protection equipment, such as eye, ear, head, face, fall and certain respiratory protection products.

As of September 30, 2011, Aearo and/or other companies that previously owned and operated Aearo’s respirator business (American Optical Corporation, Warner-Lambert LLC, AO Corp. and Cabot Corporation (“Cabot”)) are named defendants, with multiple co-defendants, including the Company, in numerous lawsuits in various courts in which plaintiffs allege use of mask and respirator products and seek damages from Aearo and other defendants for alleged personal injury from workplace exposures to asbestos, silica-related, or other occupational dusts found in products manufactured by other defendants or generally in the workplace.

As of September 30, 2011, the Company, through its Aearo subsidiary, has recorded $30 million as the best estimate of the probable liabilities for product liabilities and defense costs related to current and future Aearo-related asbestos and silica-related claims. Responsibility for legal costs, as well as for settlements and judgments, is currently shared in an informal arrangement among Aearo, Cabot, American Optical Corporation and a subsidiary of Warner Lambert and their insurers (the “Payor Group”). Liability is allocated among the parties based on the number of years each company sold respiratory products under the “AO Safety” brand and/or owned the AO Safety Division of American Optical Corporation and the alleged years of exposure of the individual plaintiff. Aearo’s share of the contingent liability is further limited by an agreement entered into between Aearo and Cabot on July 11, 1995. This agreement provides that, so long as Aearo pays to Cabot an annual fee of $400,000, Cabot will retain responsibility and liability for, and indemnify Aearo against, asbestos and silica-related product liability claims for respirators manufactured prior to July 11, 1995. Because the date of manufacture for a particular respirator allegedly used in the past is often difficult to determine, Aearo and Cabot have applied the agreement to claims arising out of the alleged use of respirators while exposed to asbestos or silica or products containing asbestos or silica prior to January 1, 1997. With these arrangements in place, Aearo’s potential liability is limited to exposures alleged to have arisen from the use of respirators while exposed to asbestos, silica or other occupational dusts on or after January 1, 1997.

To date, Aearo has elected to pay the annual fee. Aearo could potentially be exposed to additional claims for some part of the pre-July 11, 1995 period covered by its agreement with Cabot if Aearo elects to discontinue its participation in this arrangement, or if Cabot is no longer able to meet its obligations in these matters.

Developments may occur that could affect the estimate of Aearo’s liabilities. These developments include, but are not limited to: (i) significant changes in the number of future claims, (ii) significant changes in the average cost of resolving claims, (iii) significant changes in the legal costs of defending these claims, (iv) significant changes in the mix and nature of claims received, (v) trial and appellate outcomes, (vi) significant changes in the law and procedure applicable to these claims, (vii) significant changes in the liability allocation among the co-defendants, (viii) the financial viability of members of the Payor Group including exhaustion of available coverage limits, (ix) the outcome of pending insurance coverage litigation among certain other members of the Payor Group and their respective insurers, and/or (x) a determination that the interpretation of the contractual obligations on which Aearo has estimated its share of liability is inaccurate. The Company cannot determine the impact of these potential developments on its current estimate of Aearo’s share of liability for these existing and future claims. If any of the developments described above were to occur, the actual amount of these liabilities for existing and future claims could be significantly larger than the reserved amount.

Because of the inherent difficulty in projecting the number of claims that have not yet been asserted, the complexity of allocating responsibility for future claims among the Payor Group, and the several possible developments that may occur that could affect the estimate of Aearo’s liabilities, the Company cannot estimate the amount or range of amounts by which Aearo’s liability may exceed the reserve the Company has established.

Environmental Matters and Litigation

The Company’s operations are subject to environmental laws and regulations including those pertaining to air emissions, wastewater discharges, toxic substances, and the handling and disposal of solid and hazardous wastes enforceable by national, state, and local authorities around the world, and private parties in the United States and abroad. These laws and regulations provide, under certain circumstances, a basis for the remediation of contamination, for restoration of or compensation for damages to natural resources, and for personal injury and property damage claims. The Company has incurred, and will continue to incur, costs and capital expenditures in complying with these laws and regulations, defending personal injury and property damage claims, and modifying its business operations in light of its environmental responsibilities. In its effort to satisfy its environmental responsibilities and comply with environmental laws and

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regulations, the Company has established, and periodically updates, policies relating to environmental standards of performance for its operations worldwide.

Under certain environmental laws, including the United States Comprehensive Environmental Response, Compensation and Liability Act of 1980 and similar state laws, the Company may be jointly and severally liable, typically with other companies, for the costs of remediation of environmental contamination at current or former facilities and at off-site locations. The Company has identified numerous locations, most of which are in the United States, at which it may have some liability. Please refer to the paragraph entitled “Environmental Liabilities and Insurance Receivables” that follows for information on the amount of the reserve.

Environmental Matters

As previously reported, the Company has been voluntarily cooperating with ongoing reviews by local, state, national (primarily the U.S. Environmental Protection Agency (EPA)), and international agencies of possible environmental and health effects of various perfluorinated compounds (“PFCs”), including perfluorooctanoate or “PFOA” and perfluorooctane sulfonate or “PFOS” and other perfluorooctanyl compounds. As a result of its phase-out decision in May 2000, the Company no longer manufactures perfluorooctanyl compounds. The company ceased manufacturing and using the vast majority of these compounds within approximately two years of the phase out announcement, and ceased all manufacturing and the last significant use of this chemistry by 2008. Through its ongoing life cycle management and its raw material composition identification processes associated with the Company’s policies covering the use of all persistent and bio-accumulative materials, the Company has on rare occasion identified the presence of perfluorooctanyl precursor chemicals in materials purchased from suppliers that may ultimately degrade to PFOA. Upon such identification, the Company works with the suppliers to find substitutes for such chemicals.

Regulatory activities concerning PFOA and/or PFOS continue in the United States, Europe and elsewhere, and before certain international bodies. These activities include gathering of exposure and use information, risk assessment, and consideration of regulatory approaches. The EPA continues to develop Drinking Water Health Advisories for PFOS and PFOA, which are expected to be released in 2012. Those advisory levels will supersede the current provisional advisory levels. In an effort to move toward developing standards under the Safe Drinking Water Act, the EPA has proposed to have public water suppliers monitor for six PFCs to determine the extent of their occurrence.

In late 2008 and early 2009, the EPA undertook testing of private wells and soils at certain agricultural sites in Alabama where wastewater treatment sludge was applied from the municipal wastewater treatment plant in Decatur, Alabama that received wastewater from numerous sources, including sanitary wastewater from 3M. In this same timeframe, the EPA also issued provisional health advisory values for drinking water for PFOA of 0.4 parts per billion (“ppb”) and PFOS of 0.2 ppb. Pursuant to an information request from EPA, a group of local industries, including 3M, and the Decatur utility have been working to identify and test private wells in the area, and to connect to municipal water any private wells used for drinking water that exceed the EPA’s provisional health advisory levels. EPA’s and the industry’s testing of public drinking water supplies in the area indicate that the levels of PFOA and PFOS in municipal water supplies are well below the provisional health advisories. 3M and other companies have completed a survey of properties near the sites where Decatur utility’s wastewater treatment sludge was applied to identify any additional private drinking water wells not already identified by the EPA, and have connected a small number of wells that exceeded the provisional health advisory levels for PFOS and PFOA to municipal water. 3M and the other companies have continued to monitor those few private wells that showed levels of PFOS or PFOA above detection levels but below the EPA’s provisional health advisory levels. EPA has recently notified 3M that the agency is satisfied that 3M has completed its obligations under the information request and that EPA is closing its request.

The Agency for Toxic Substances and Disease Registry (ATSDR) has completed a bio-monitoring study evaluating PFC blood levels in volunteers living near the sludge application fields. The Company expects ATSDR to release its report in 2012.

3M continues its third and final phase of work pursuant to a Memorandum of Understanding with the EPA regarding an environmental assessment program at the Company’s Decatur manufacturing site. That work includes groundwater sampling off-site from the Decatur facility (unrelated to the work described above involving the Decatur utility’s wastewater treatment sludge) as well as at three local landfills used by the facility.

The Company is continuing to make progress in its work, under the supervision of state regulators, to address its historic disposal of PFC-containing waste associated with manufacturing operations at the Cottage Grove, Minnesota and Decatur, Alabama plants.

As previously reported, the Company entered into a voluntary remedial action agreement with the Alabama Department of Environmental Management (ADEM) to address the presence of PFCs in the soil at the Company’s manufacturing facility in Decatur, Alabama. For approximately twenty years, the Company incorporated its wastewater treatment plant sludge containing PFCs in fields at its Decatur facility pursuant to a permit issued by ADEM. After a review of the available

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options to address the presence of PFCs in the soil, ADEM agreed that the preferred remediation option is to use a multilayer cap over the former sludge incorporation areas on the manufacturing site with subsequent groundwater migration controls and treatment. Implementation of that option will continue throughout the balance of 2011 and is expected to be completed in 2016.

The Company continues to work with the Minnesota Pollution Control Agency (MPCA) pursuant to the terms of the previously disclosed May 2007 Settlement Agreement and Consent Order to address the presence of perfluorinated compounds in the soil and groundwater at former disposal sites in Washington County, Minnesota (Oakdale and Woodbury) and at the Company’s manufacturing facility at Cottage Grove, Minnesota. Under this agreement, the Company’s principal obligations include (i) evaluating releases of perfluorinated compounds from these sites and proposing response actions; (ii) providing treatment or alternative drinking water upon identifying any level exceeding a Health Based Value (“HBV”) or Health Risk Limit (“HRL”) (i.e., the amount of a chemical in drinking water determined by the Minnesota Department of Health to be safe for people to drink for a lifetime) for any perfluorinated compounds as a result of contamination from these sites; (iii) remediating any source of other PFCs at these sites that is not controlled by actions to remediate PFOA and PFOS; and (iv) sharing information with the MPCA about perfluorinated compounds. During 2008, the MPCA issued formal decisions adopting remedial options for the former disposal sites in Washington County, Minnesota (Oakdale and Woodbury). In August 2009, the MPCA issued a formal decision adopting remedial options for the Company’s Cottage Grove manufacturing facility. During the spring and summer of 2010, 3M began implementing the remedial options at the Cottage Grove and Woodbury sites. 3M commenced the remedial option at the Oakdale site in late 2010. At each location the remedial options were among those recommended by the Company. Remediation work will continue at all three sites throughout the balance of 2011 and into 2012.

The Company cannot predict what additional regulatory actions arising from the foregoing proceedings and activities, if any, may be taken regarding such compounds or the consequences of any such actions.

Environmental Litigation

As previously reported, a former employee filed a purported class action lawsuit in 2002 in the Circuit Court of Morgan County, Alabama seeking unstated damages and alleging that the plaintiffs suffered fear, increased risk, subclinical injuries, and property damage from exposure to perfluorochemicals at or near the Company’s Decatur, Alabama, manufacturing facility. The Circuit Court in 2005 granted the Company’s motion to dismiss the named plaintiff’s personal injury-related claims on the basis that such claims are barred by the exclusivity provisions of the state’s Workers Compensation Act. The plaintiffs’ counsel filed an amended complaint in November 2006, limiting the case to property damage claims on behalf of a purported class of residents and property owners in the vicinity of the Decatur plant. Also, in 2005, the judge in a second purported class action lawsuit (filed by three residents of Morgan County, Alabama, seeking unstated compensatory and punitive damages involving alleged damage to their property from emissions of perfluorochemical compounds from the Company’s Decatur, Alabama, manufacturing facility that formerly manufactured those compounds) granted the Company’s motion to abate the case, effectively putting the case on hold pending the resolution of class certification issues in the first action described above filed in the same court in 2002. Despite the stay, plaintiffs filed an amended complaint seeking damages for alleged personal injuries and property damage on behalf of the named plaintiffs and the members of a purported class. No further action in the case is expected unless and until the stay is lifted.

In February 2009, a resident of Franklin County, Alabama, filed a purported class action lawsuit in the Circuit Court of Franklin County seeking compensatory damages and injunctive relief based on the application by the Decatur utility’s wastewater treatment plant of wastewater treatment sludge to farmland and grasslands in the state that allegedly contain PFOA, PFOS and other perfluorochemicals. The named defendants in the case include 3M, its subsidiary Dyneon LLC, Daikin America, Inc., Synagro-WWT, Inc., Synagro South, LLC and Biological Processors of America. The named plaintiff seeks to represent a class of all persons within the State of Alabama who have had PFOA, PFOS and other perfluorochemicals released or deposited on their property. In March 2010, the Alabama Supreme Court ordered the case transferred from Franklin County to Morgan County. In May, 2010, consistent with its handling of the other matters, the Morgan County Circuit Court abated this case, putting it on hold pending the resolution of the class certification issues in the first case filed there.

In March 2011, several residents of Lawrence County, Alabama, filed a lawsuit in the Circuit Court of Lawrence County seeking unspecified compensatory and punitive damages and other relief for alleged personal injuries due to the exposure to PFCs. The named defendants in the case include the City of Decatur, Alabama, 3M, its subsidiary Dyneon LLC, Daikin America, Inc., Toray Industries, Inc. and two of its U.S. subsidiaries, Synagro-WWT, Inc., Synagro South, LLC and Biological Processors of America, and certain individuals not associated with 3M. According to the complaint, Synagro acquired wastewater treatment sludge that allegedly contained PFOA, PFOS and other perfluorochemicals from the Decatur utility’s wastewater treatment plant, and made it into a fertilizer that it sold to farmers who applied it to their

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farmland in Morgan, Limestone and Lawrence counties, including land adjacent to the plaintiffs’ residence. Plaintiffs have dismissed the City of Decatur from the case.

On December 30, 2010, the State of Minnesota, by its Attorney General Lori Swanson, acting in its capacity as trustee of the natural resources of the State of Minnesota, filed a lawsuit in Hennepin County District Court against 3M to recover damages (including unspecified assessment costs and reasonable attorney’s fees) for alleged injury to, destruction of, and loss of use of certain of the State’s natural resources under the Minnesota Environmental Response and Liability Act (MERLA) and the Minnesota Water Pollution Control Act (MWPCA), as well as statutory nuisance and common law claims of trespass, nuisance, and negligence with respect to the presence of PFC’s in the groundwater, surface water, fish or other aquatic life and sediments. The State also seeks declarations under MERLA that 3M is responsible for all damages the State may suffer in the future for injuries to natural resources from releases of PFCs into the environment, and under MWPCA that 3M is responsible for compensation for future loss or destruction of fish, aquatic life and other damages. On January 14, 2011, the City of Lake Elmo filed a motion to intervene in the State of Minnesota lawsuit and seeks damages in excess of $50,000 and other legal and equitable relief, including reasonable attorneys’ fees, for alleged contamination of city property, wells, groundwater and water contained in the wells with PFCs under several theories, including common law and statutory nuisance, strict liability, trespass, negligence, and conversion. The court granted the City of Lake Elmo’s motion to intervene in this lawsuit.

In June 2009, the Company, along with more than 250 other companies, was served with a third-party complaint seeking contribution towards the cost of cleaning up a 17-mile stretch of the Passaic River in New Jersey. After commencing an enforcement action in 1990, the State of New Jersey filed suit against Maxus Energy, Tierra Solutions, Occidental Chemical and two other companies seeking cleanup and removal costs and other damages associated with the presence of dioxin and other hazardous substances in the sediment of the Passaic. The third-party complaint seeks to spread those costs among the third-party defendants, including the Company. Based on the cleanup remedy currently proposed by the EPA, the total costs at issue could easily exceed $1 billion. The Company’s recent involvement in the case appears to relate to its past disposal of industrial waste at two commercial waste disposal facilities in New Jersey. Whether, and to what extent, the Company may be required to contribute to the costs at issue in the case remains to be determined. The Company does not yet have a basis for estimating its potential exposure in this case, although the Company currently believes its allocable share, if any, is likely to be a fraction of one percent of the total costs.

The Company has not recorded any liabilities for the Company’s environmental litigation described in this section because the Company believes that liability is not probable and estimable at this time. Because of the limited activity in these cases, the Company is not able to estimate a possible loss or range of loss, with the exception of the Passaic River litigation, where the Company indicated that its potential exposure, if any, is likely to be a fraction of one percent of the total costs.

Environmental Liabilities and Insurance Receivables

As of September 30, 2011, the Company had recorded liabilities of $29 million for estimated “environmental remediation” costs based upon an evaluation of currently available facts with respect to each individual site and also recorded related insurance receivables of $15 million. The Company records liabilities for remediation costs on an undiscounted basis when they are probable and reasonably estimable, generally no later than the completion of feasibility studies or the Company’s commitment to a plan of action. Liabilities for estimated costs of environmental remediation, depending on the site, are based primarily upon internal or third-party environmental studies, and estimates as to the number, participation level and financial viability of any other potentially responsible parties, the extent of the contamination and the nature of required remedial actions. The Company adjusts recorded liabilities as further information develops or circumstances change. The Company expects that it will pay the amounts recorded over the periods of remediation for the applicable sites, currently ranging up to 20 years.

As of September 30, 2011, the Company had recorded liabilities of $80 million for “other environmental liabilities” based upon an evaluation of currently available facts to implement the Settlement Agreement and Consent Order with the MPCA, the remedial action agreement with ADEM, and to address trace amounts of perfluorinated compounds in drinking water sources in the City of Oakdale and Lake Elmo, Minnesota, as well as presence in the soil and groundwater at the Company’s manufacturing facilities in Decatur, Alabama, and Cottage Grove, Minnesota, and at two former disposal sites in Washington County, Minnesota (Oakdale and Woodbury). The Company expects that most of the spending will occur over the next five years.

It is difficult to estimate the cost of environmental compliance and remediation given the uncertainties regarding the interpretation and enforcement of applicable environmental laws and regulations, the extent of environmental contamination and the existence of alternative cleanup methods. Developments may occur that could affect the Company’s current assessment, including, but not limited to: (i) changes in the information available regarding the environmental impact of the Company’s operations and products; (ii) changes in environmental regulations, changes in

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permissible levels of specific compounds in drinking water sources, or changes in enforcement theories and policies, including efforts to recover natural resource damages; (iii) new and evolving analytical and remediation techniques; (iv) success in allocating liability to other potentially responsible parties; and (v) the financial viability of other potentially responsible parties and third-party indemnitors. For sites included in both “environmental remediation liabilities” and “other environmental liabilities,” at which remediation activity is largely complete and remaining activity relates primarily to operation and maintenance of the remedy, including required post-remediation monitoring, the Company believes the exposure to loss in excess of the amount accrued would not be material to the Company’s consolidated results of operations or financial condition. However, for locations at which remediation activity is largely on-going, the Company cannot estimate a possible loss or range of loss in excess of the associated established reserves for the reasons described above.

Employment Litigation

In January 2011, 3M reached an agreement in principle with plaintiffs’ counsel to resolve the Whitaker and Garcia lawsuits.  The Whitaker settlement agreement was signed by all parties in March 2011. The court granted preliminary approval of the settlement on April 6, 2011, and provisionally certified a class for settlement purposes only. The final approval hearing is scheduled in December 2011. The Garcia settlement agreement has been signed by the parties. All plaintiffs subject to the Garcia settlement have signed and not timely revoked individual releases of claims against 3M, and the parties anticipate filing a stipulation of dismissal, with prejudice, in that matter following administration of the settlement, which will occur concurrently with administration of the Whitaker settlement. If finalized and approved by the court, administration of the settlement agreements will take several months to complete. In September 2011, 3M reached an agreement in the form of a proposed Consent Decree with the U.S. Equal Employment Opportunity Commission (EEOC) to resolve related charges as described below. The Consent Decree was filed concurrently with a complaint in the U.S. District Court for the District of Minnesota and has been approved by the court. The Consent Decree addressed the outstanding charges of age discrimination in addition to claims on behalf of a class of certain former employees as defined in the charges and subsequently in the complaint. 3M agreed, as part of the Consent Decree, to ensure that its policies and practices further the objectives of equal employment as set forth in the federal Age Discrimination in Employment Act and to make certain enhancements in its employee communications and development programs. The EEOC agreed, as part of the Consent Decree, not to take any further action against 3M in connection with the charges and as otherwise set forth in the decree. Administration of the EEOC settlement is in process and will take several months to complete. The amount of each of the proposed settlements is not material to the Company’s consolidated results of operations or financial condition. The background of this litigation is set forth below.

Whitaker Lawsuit:

As previously reported, in December, 2004, one current and one former employee of the Company filed a purported class action in the District Court of Ramsey County, Minnesota, seeking to represent a class of all current and certain former salaried employees employed by the Company in Minnesota below a certain salary grade who were age 46 or older at any time during the applicable period to be determined by the Court (the “Whitaker” lawsuit). The complaint alleges the plaintiffs suffered various forms of employment discrimination on the basis of age in violation of the Minnesota Human Rights Act and seeks injunctive relief, unspecified compensatory damages (which they seek to treble under the statute), including back and front pay, punitive damages (limited by statute to $8,500 per claimant) and attorneys’ fees. In January 2006, the plaintiffs filed a motion to join four additional named plaintiffs. This motion was unopposed by the Company and the four plaintiffs were joined in the case, although one plaintiff’s claim was dismissed following an individual settlement. On April 11, 2008, the Court granted the plaintiffs’ motion to certify the case as a class action. On April 28, 2009, the Minnesota Court of Appeals reversed the District Court’s class certification decision, finding that the District Court had not required plaintiffs to meet the proper legal standards for certification of a class under Minnesota law and incorrectly had deferred resolving certain factual disputes that were relevant to the class certification requirements. The Court of Appeals remanded the case to the District Court for further proceedings in line with the evidentiary standards defined in its opinion. The trial court took expert testimony and held a hearing on the class certification question and had the matter under advisement when the parties reached a tentative settlement which rendered the certification issues moot.

Garcia Lawsuit

The Company was served on May 7, 2009 with a purported class action/collective action age discrimination lawsuit, which was filed in United States District Court for the Northern District of California, San Jose Division (the “Garcia lawsuit”). The case was subsequently transferred to the U.S. District Court for the District of Minnesota.

In this case, five former and one current employee of the Company are seeking to represent all current and former salaried employees employed by the Company in the United States during the liability period, which plaintiffs define as 2001 to the present. In addition to the six named plaintiffs, there are approximately 130 other current or former employees who have signed “opt-in” forms, seeking to join the action. The Garcia lawsuit expressly excludes those persons encompassed within

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the proposed class in the Whitaker lawsuit. The same firm, joined by additional California counsel and local Minnesota counsel for the Garcia lawsuit, represents the plaintiffs in both cases.

The allegations of the complaint in the Garcia lawsuit are similar to those in the Whitaker lawsuit. Plaintiffs claim that they and other similarly situated employees suffered various forms of employment discrimination on the basis of age in violation of the federal Age Discrimination in Employment Act. In regard to these claims, plaintiffs seek to represent “all persons who were 46 or older when employed by 3M in the United States in a salaried position below the level of director, or salary grade 18, during the liability period.”  Because federal law protects persons age 40 and older from age discrimination, with respect to their claim of disparate impact only, plaintiffs also propose an alternative definition of similarly situated persons that would begin at age 40. On behalf of this group, plaintiffs seek injunctive relief, unspecified compensatory damages including back and front pay, benefits, liquidated damages and attorneys’ fees.

Certain of the plaintiffs’ and putative class members’ employment terminated under circumstances in which they were eligible for group severance plan benefits and in connection with those plans they signed waivers of claims, including age discrimination claims. Plaintiffs claim the waivers of age discrimination claims were invalid in various respects. This subset of release-signing plaintiffs seeks a declaration that the waivers of age discrimination claims are invalid, other injunctive, but non-monetary, remedies, and attorneys’ fees.

EEOC Age-Discrimination Charges

Six former employees and one current employee, all but one of whom are named plaintiffs in the Garcia lawsuit, have also filed age discrimination charges against the Company with the EEOC and various pertinent state agencies, alleging age discrimination similar to the Whitaker and Garcia lawsuits and claiming that a class of similarly situated persons exists. Of these, three former employees filed charges in 2005 in Minnesota, Texas, and California. These filings include allegations that the release of claims signed by certain former employees in the purported class defined in the charges is invalid for various reasons and assert age discrimination claims on behalf of certain current and former salaried employees in states other than Minnesota and New Jersey. In 2006, a current employee filed an age discrimination charge against the Company with the EEOC and the pertinent state agency in Missouri, asserting claims on behalf of a class of all current and certain former salaried employees who worked in Missouri and states other than Minnesota and New Jersey. In 2007, a former employee filed an age discrimination charge against the Company with the EEOC and the pertinent state agency in California, asserting claims on behalf of a class of all current and certain former salaried employees who worked in California. In January 2009, two former employees filed age discrimination charges against the Company with the EEOC and the pertinent state agency in Minnesota. The filings include allegations that the release of claims signed by certain former employees in the purported class defined in the charges is invalid for various reasons and assert age discrimination claims on behalf of certain current and former salaried employees in states other than Minnesota. The same law firm represents the plaintiffs in the Whitaker lawsuit as well as the claimants in each of these EEOC proceedings.

Compliance Matters

On November 12, 2009, the Company contacted the Department of Justice (DOJ) and Securities and Exchange Commission (SEC) to voluntarily disclose that the Company was conducting an internal investigation as a result of reports it received about its subsidiary in Turkey, alleging bid rigging and bribery and other inappropriate conduct in connection with the supply of certain reflective and other materials and related services to Turkish government entities. The Company also contacted certain affected government agencies in Turkey. The Company retained outside counsel to conduct an assessment of its policies, practices, and controls and to evaluate its overall compliance with the Foreign Corrupt Practices Act, including an ongoing review of our practices in certain other countries and acquired entities. As part of its ongoing review, the Company has also reported to the DOJ and SEC issues arising from transactions in other countries. The Company continues to cooperate with the DOJ and SEC and government agencies in Turkey in the Company’s ongoing investigation of this matter. The Company cannot predict at this time the outcome of its investigation or what regulatory actions may be taken or what other consequences may result.

Other Matters

Commercial Litigation

In September 2010, various parties, on behalf of a purported class of shareholders of Cogent, Inc. (“Cogent”), commenced three lawsuits against the Company, Cogent, and its directors in the Delaware Court of Chancery. Plaintiffs allege that 3M, in connection with its tender offer for Cogent shares, aided and abetted the breach of fiduciary duties by Cogent directors and seek an unspecified amount of damages. The three cases were consolidated, expedited discovery was conducted, and Plaintiffs’ motion for a preliminary injunction to enjoin the acquisition was denied on October 1, 2010. On November 15, 2010, plaintiffs filed an amended complaint that added directors of Cogent, Inc. appointed by 3M, as named defendants, and asserted additional claims of breach of fiduciary duties in connection with the acquisition and a subsequent offering period. The acquisition closed on December 1, 2010. 3M moved to dismiss all claims. In response to

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3M’s motion, the plaintiffs filed a second amended complaint in August 2011. 3M has moved to dismiss all claims of the second amended complaint.

In September 2010, various parties, again on behalf of a purported class of Cogent shareholders, commenced six lawsuits against the Company, Cogent and its directors in the Los Angeles Superior Court for the State of California that contained similar claims that 3M had aided and abetted the breach of fiduciary duties by Cogent directors. The parties have reached a resolution of these matters. A separate lawsuit was commenced in September 2010 by an individual, again on behalf of a purported class of Cogent shareholders, against Cogent and its directors in the United States District Court for the Central District of California that raised similar claims; plaintiff later filed an amended complaint that also named the Company. The plaintiff has voluntarily dismissed that lawsuit.

Separately, several purported holders of Cogent shares, representing a total of approximately 5.8 million shares, have asserted appraisal rights under Delaware law. The Company has answered the appraisal petition and is defending this matter vigorously.

3M filed suit against Avery Dennison Corporation in the United States District Court for the District of Minnesota in June 2010, alleging that Avery’s OmniCube™ full cube retroreflective sheeting products, which are used for highway signage, infringe a number of 3M patents. 3M also sought a declaratory judgment from the District Court in Minnesota that 3M’s Diamond Grade™ DG3 full cube retroreflective sheeting does not infringe two Avery patents. In October 2010, Avery Dennison filed a lawsuit against the Company in the United States District Court for the Central District of California, alleging that 3M monopolized or attempted to monopolize the markets for Type XI retroreflective sheeting and for broad high performance sheeting in violation of the Sherman Act, as well as other claims. Avery alleges that 3M manipulated the standards-setting process of the American Society for Testing and Materials (ASTM), a private organization responsible for creating standards for, among other things, retroreflective sheeting used for highway signage; entered into illegal and anticompetitive contracts; and engaged in other anticompetitive acts including false advertising and disparagement. 3M’s motion to transfer the antitrust case to the United States District Court for the District of Minnesota was granted in February 2011. In the patent case, 3M’s motion to preliminarily enjoin the sales of Avery’s OmniCube retroreflective sheeting was denied in December 2010. The District Court also granted Avery’s motion to dismiss 3M’s declaratory judgment suit in March 2011. 3M has appealed the dismissal of the declaratory judgment lawsuit. In the meantime, 3M’s patent infringement lawsuit against Avery and Avery’s antitrust suit against 3M are moving forward in the Minnesota Court.

In December 2010, Meda AB filed a lawsuit in the Supreme Court of the State of New York, County of New York, alleging breach of certain representations and warranties contained in the October 2006 acquisition agreement pursuant to which Meda AB acquired the Company’s European pharmaceutical business. The lawsuit seeks to recover an amount to be determined at trial, but not less than $200 million, in compensatory damages alleging that 3M failed to disclose, during the due diligence period, certain pricing arrangements between 3M’s French subsidiary and the French government agency that determines the eligible levels of reimbursement for prescription pharmaceuticals. The damage amounts specified in complaints are not a meaningful factor in any assessment of the Company’s potential liability. The Company believes it has a number of legal and factual defenses to this claim and will vigorously defend it.

In December 2008, the investors that sold Acolyte Biomedica, Ltd. to the Company’s subsidiary in the United Kingdom filed suit in London’s High Court seeking damages for breach of the acquisition agreement, including damages of 40 million pounds sterling for loss of potential earnout payments under the acquisition agreement. Notwithstanding significant investments and efforts by the Company to support the sales of BacLite™, a methicillin-resistant staphlococcus aureus (MRSA) screening device, the product was not a commercial success. A trial in London’s High Court began on June 13, 2011. The trial concluded July 18, 2011. Written post trial submissions were served July 27, 2011 and oral closing arguments occurred in early October 2011. The Company expects a decision in the next several months.

For commercial litigation matters described in this section for which a liability, if any, has been recorded, the Company believes the amount recorded, as well as the possible loss or range of loss in excess of the established reserve is not material to the Company’s consolidated results of operations or financial condition. For those matters for which a liability has not been recorded, the Company believes that liability is not probable and estimable and the Company is not able to estimate a possible loss or range of loss at this time.

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NOTE 12. Stock-Based Compensation

The Company’s annual stock option and restricted stock unit grant is made in February to provide a strong and immediate link between the performance of individuals during the preceding year and the size of their annual stock compensation grants. The grant to eligible employees uses the closing stock price on the grant date. Stock options vest over a period from one year to three years with the expiration date at 10 years from date of grant. Accounting rules require recognition of expense under a non-substantive vesting period approach, requiring compensation expense recognition when an employee is eligible to retire. Employees are considered eligible to retire at age 55 and after having completed five years of service. This retiree-eligible population represents 28 percent of the 2011 annual grant stock-based compensation award expense dollars; therefore, higher stock-based compensation expense is recognized in the first quarter. The remaining total shares available for grant under the 2008 Long Term Incentive Plan Program are 21,936,920 as of September 30, 2011.

Amounts recognized in the financial statements with respect to stock-based compensation programs, which include stock options, restricted stock, restricted stock units and the General Employees’ Stock Purchase Plan (GESPP), are provided in the following table. The income tax benefits shown in the table can fluctuate by period due to the amount of employee “disqualifying dispositions” related to Incentive Stock Options (ISOs). The Company last granted ISOs in 2002.

Stock-Based Compensation Expense

	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Cost of sales	$	5		$	6		$	25		$	26
Selling, general and administrative expenses	28			45			159			174
Research, development and related expenses	5			6			26			28
Stock-based compensation expenses	$	38		$	57		$	210		$	228
Income tax benefits	$	(12	)	$	(13	)	$	(68	)	$	(68	)
Stock-based compensation expenses, net of tax	$	26		$	44		$	142		$	160

The following table summarizes stock option activity during the nine months ended September 30, 2011:

Stock Option Program

					Remaining	Aggregate
	Number of		Exercise		Contractual	Intrinsic Value
	Options		Price*		Life* (months)	(millions)
Under option —
January 1	70,335,044		$	74.80
Granted
Annual	5,514,500		89.46
Progressive (Reload)	234,639		94.21
Other	5,667		90.42
Exercised	(11,408,114	)	68.55
Canceled	(281,801	)	74.24
September 30	64,399,935		$	77.24	57	$	192
Options exercisable
September 30	52,765,533		$	76.81	47	$	152

*Weighted average

As of September 30, 2011, there was $71 million of compensation expense that has yet to be recognized related to non-vested stock option based awards. This expense is expected to be recognized over the remaining weighted-average vesting period of 1.8 years. The total intrinsic values of stock options exercised were $283 million and $214 million during the nine months ended September 30, 2011 and 2010, respectively. Cash received from options exercised was $782 million and $433 million for the nine months ended September 30, 2011 and 2010, respectively. The Company’s actual tax benefits realized for the tax deductions related to the exercise of employee stock options were $86 million and $63

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million for the nine months ended September 30, 2011 and 2010, respectively. Capitalized stock-based compensation amounts were not material at September 30, 2011.

For the primary 2011 annual stock option grant, the weighted average fair value at the date of grant was calculated using the Black-Scholes option-pricing model and the assumptions that follow.

	Annual
Stock Option Assumptions	2011
Exercise price	$	89.47
Risk-free interest rate	2.8		%
Dividend yield	2.6		%
Expected volatility	22.0		%
Expected life (months)	72
Black-Scholes fair value	$	16.10

Expected volatility is a statistical measure of the amount by which a stock price is expected to fluctuate during a period. For the 2011 annual grant date, the Company estimated the expected volatility based upon the average of the most recent one year volatility, the median of the term of the expected life rolling volatility, the median of the most recent term of the expected life volatility of 3M stock, and the implied volatility on the grant date. The expected term assumption is based on the weighted average of historical grants.

The following table summarizes restricted stock and restricted stock unit activity during the nine months ended September 30, 2011:

Restricted Stock and Restricted Stock Units	Number of Awards		Grant Date Fair Value*
Nonvested balance —
As of January 1	5,573,302		$	70.43
Granted
Annual	889,448		89.46
Performance shares	375,146		83.34
Other	335,164		87.55
Vested	(1,277,111	)	72.33
Forfeited	(106,367	)	71.58
As of September 30	5,789,582		$	74.74

*Weighted average

As of September 30, 2011, there was $121 million of compensation expense that has yet to be recognized related to non-vested restricted stock and restricted stock units. This expense is expected to be recognized over the remaining weighted-average vesting period of 2.0 years. The total grant date fair value of restricted stock and restricted stock units that vested during the nine months ended September 30, 2011 and 2010 was $92 million and $60 million, respectively. The Company’s actual tax benefits realized for the tax deductions related to the vesting of restricted stock and restricted stock units was $42 million and $20 million for the nine months ended September 30, 2011 and 2010, respectively.

Restricted stock units granted under the 3M 2008 Long-Term Incentive Plan generally vest three years following the grant date assuming continued employment. The one-time “buyout” restricted stock unit grant in 2007 vests at the end of five years. Restricted stock unit grants issued in 2008 and prior did not accrue dividends during the vesting period. Beginning in 2009, dividend equivalents equal to the dividends payable on the same number of shares of 3M common stock accrue on these restricted stock units during the vesting period, although no dividend equivalents are paid on any of these restricted stock units that are forfeited prior to the vesting date. Dividends are paid out in cash at the vest date on restricted stock units, except for performance shares which do not earn dividends. Since the rights to dividends are forfeitable, there is no impact on basic earnings per share calculations. Weighted average restricted stock unit shares outstanding are included in the computation of diluted earnings per share.

In addition, the Company issues cash settled Restricted Stock Units and Stock Appreciation Rights in certain countries. These grants do not result in the issuance of Common Stock and are considered immaterial by the Company.

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NOTE 13. Business Segments

Effective in the first quarter of 2011, 3M made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers. There were no changes impacting business segments related to product moves for the Display and Graphics segment or the Consumer and Office segment. The product moves between business segments are summarized as follows:

·Certain pressure sensitive adhesives products within the Industrial Adhesives and Tapes Division and shock absorption and vibration dampening products used in electronics within the Aerospace and Aircraft Maintenance Department (both within the Industrial and Transportation business segment) were transferred to the Electronic Markets Materials Division (part of the Electro and Communications business segment). In addition, certain medical respirator products within the Infection Prevention Division (part of the Health Care business segment) were transferred to the Occupational Health and Environmental Safety Division (within the Safety, Security and Protection Services business segment). The preceding product moves resulted in decreases in net sales for the total year 2010 of $152 million in the Industrial and Transportation business segment and $8 million in the Health Care business segment. These decreases were offset by increases in net sales for the total year 2010 of $121 million for the Electro and Communications business segment and $8 million for the Safety, Security and Protection Services business segment along with a $31 million change in the elimination of dual credit sales and corporate and unallocated.

3M’s businesses are organized, managed and internally grouped into segments based on differences in products, technologies and services. 3M continues to manage its operations in six operating business segments: Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications. 3M’s six business segments bring together common or related 3M technologies, enhancing the development of innovative products and services and providing for efficient sharing of business resources. These segments have worldwide responsibility for virtually all 3M product lines. 3M is not dependent on any single product/service or market. Transactions among reportable segments are recorded at cost. 3M is an integrated enterprise characterized by substantial intersegment cooperation, cost allocations and inventory transfers. Therefore, management does not represent that these segments, if operated independently, would report the operating income information shown. The difference between operating income and pre-tax income relates to interest income and interest expense, which are not allocated to business segments.

The financial information presented herein reflects the impact of all of the preceding segment structure changes for all periods presented.

Business Segment Information	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Net Sales
Industrial and Transportation	$	2,580		$	2,171		$	7,671		$	6,328
Health Care	1,246			1,092			3,770			3,316
Display and Graphics	935			1,065			2,851			2,981
Consumer and Office	1,096			1,026			3,134			2,892
Safety, Security and Protection Services	954			811			2,894			2,468
Electro and Communications	838			803			2,538			2,254
Corporate and Unallocated	1			4			9			12
Elimination of Dual Credit	(119		)	(98		)	(345		)	(298		)
Total Company	$	7,531		$	6,874		$	22,522		$	19,953
Operating Income
Industrial and Transportation	$	525		$	434		$	1,585		$	1,340
Health Care	367			325			1,100			1,015
Display and Graphics	179			282			631			802
Consumer and Office	244			235			661			665
Safety, Security and Protection Services	202			164			643			544
Electro and Communications	181			183			559			506
Corporate and Unallocated	(91		)	(26		)	(289		)	(190		)
Elimination of Dual Credit	(26		)	(21		)	(76		)	(65		)
Total Company	$	1,581		$	1,576		$	4,814		$	4,617

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Corporate and unallocated operating income includes a variety of miscellaneous items, such as corporate investment gains and losses, certain derivative gains and losses, insurance-related gains and losses, certain litigation and environmental expenses, corporate restructuring charges and certain under- or over-absorbed costs (e.g. pension, stock-based compensation) that the Company may choose not to allocate directly to its business segments. Because this category includes a variety of miscellaneous items, it is subject to fluctuation on a quarterly and annual basis.

3M business segment reporting measures include dual credit to business segments for certain U.S. sales and related operating income. Management evaluates each of its six operating business segments based on net sales and operating income performance, including dual credit U.S. reporting to further incentivize U.S. sales growth. As a result, 3M provides additional (“dual”) credit to those business segments selling products in the U.S. to an external customer when that segment is not the primary seller of the product. For example, certain respirators are primarily sold by the Occupational Health and Environmental Safety Division within the Safety, Security and Protection Services business segment; however, the Industrial and Transportation business segment also sells this product to certain customers in its U.S. markets. In this example, the non-primary selling segment (Industrial and Transportation) would also receive credit for the associated net sales it initiated and the related approximate operating income. The assigned operating income related to dual credit activity may differ from operating income that would result from actual costs associated with such sales. The offset to the dual credit business segment reporting is reflected as a reconciling item entitled “Elimination of Dual Credit,” such that sales and operating income for the U.S. in total are unchanged.

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REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM*

To the Stockholders and Board of Directors of 3M Company:

We have reviewed the accompanying consolidated balance sheet of 3M Company and its subsidiaries as of September 30, 2011, and the related consolidated statements of income for the three-month and nine-month periods ended September 30, 2011 and 2010 and the consolidated statement of cash flows for the nine-month periods ended September 30, 2011 and 2010. These interim financial statements are the responsibility of the Company’s management.

We conducted our review in accordance with the standards of the Public Company Accounting Oversight Board (United States). A review of interim financial information consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the Public Company Accounting Oversight Board (United States), the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

Based on our review, we are not aware of any material modifications that should be made to the accompanying consolidated interim financial statements for them to be in conformity with accounting principles generally accepted in the United States of America.

We previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated balance sheet as of December 31, 2010, and the related consolidated statements of income, of changes in equity and comprehensive income, and of cash flows for the year then ended (not presented herein), and in our report dated February 16, 2011, except with respect to our opinion on the consolidated financial statements insofar as it relates to the effects of the segment realignments discussed in Notes 3 and 17 as to which the date is May 26, 2011, we expressed an unqualified opinion on those consolidated financial statements.  In our opinion, the information set forth in the accompanying consolidated balance sheet information as of December 31, 2010, is fairly stated in all material respects in relation to the consolidated balance sheet from which it has been derived.

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Minneapolis, Minnesota

November 3, 2011

*Pursuant to Rule 436(c) of the Securities Act of 1933 (“Act”) this should not be considered a “report” within the meaning of Sections 7 and 11 of the Act and the independent registered public accounting firm liability under Section 11 does not extend to it.

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Item 2.  Management’s Discussion and Analysis of Financial Condition and Results of Operations.

Management’s Discussion and Analysis of Financial Condition and Results of Operations (MD&A) is designed to provide a reader of 3M’s financial statements with a narrative from the perspective of management. 3M’s MD&A is presented in the following sections:

·Overview

·Results of Operations

·Performance by Business Segment

·Financial Condition and Liquidity

·Cautionary Note Concerning Factors That May Affect Future Results

OVERVIEW

3M is a diversified global manufacturer, technology innovator and marketer of a wide variety of products and services. 3M manages its operations in six operating business segments: Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications. As discussed in Note 13 to the Consolidated Financial Statements, effective in the first quarter of 2011, 3M made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers. The financial information presented herein reflects the impact of these business segment changes for all periods presented.

Net income attributable to 3M was $1.088 billion, or $1.52 per diluted share in the third quarter of 2011, compared to $1.106 billion, or $1.53 per diluted share, in the third quarter of 2010. The business environment remains challenging, as the economic softening that 3M experienced in the second quarter of 2011 continued into the third quarter. While sales grew across much of the portfolio, LCD TV sales remained weak and momentum also slowed in other parts of electronics following several quarters of solid growth. In addition, ongoing policy uncertainty and austerity appear to be affecting sales growth in Western Europe, which hurt results in the third quarter. 3M is seeing the impacts of these challenges earlier than most as its customers decrease production in order to lower their inventories. Conversely, 3M expects to benefit more quickly when these markets recover.

Third-quarter 2011 sales totaled $7.5 billion, an increase of 9.6 percent from the third quarter of 2010. Five of the Company’s six business segments showing growth in sales, led by Industrial and Transportation at 18.8 percent, Safety, Security and Protection Services at 17.6 percent, and Health Care at 14.0 percent. Consumer and Office grew 6.8 percent. Sales growth in these four business segments was achieved through a combination of organic volume, selling price increases and acquisitions, along with a benefit from currency translation. A slowdown in electronics-related businesses negatively impacted both the Electro and Communications and Display and Graphics business segments. Electro and Communications sales increased 4.4 percent, led by its non-electronics businesses. Display and Graphics sales declined 12.2 percent, as optical systems sales declined 28 percent, impacted by end-market weakness and lower attachment rates in LCD TVs.

Third-quarter 2011 sales increased in every major geographic region, with Latin America/Canada up 14.0 percent, Europe/Middle East/Africa up 11.2 percent, the U.S. up 9.2 percent, and Asia Pacific up 7.2 percent. Excluding optical systems, Asia Pacific sales increased 18.0 percent. Of the 9.6 percent worldwide sales growth, 2.8 points was from the combined impact of higher organic volume (1.9 points) and price growth (0.9 points), 3.7 points was from acquisitions, and another 3.1 points was from favorable currency effects. Organic volume growth of 1.9 percent was below recent trend levels, reflecting weakness across the electronics market along with generally slowing economic growth in the developed world, particularly in Western Europe. Western Europe appears to be experiencing increasing challenges given the uncertainty around fiscal and monetary policy direction, which likely impacts consumer confidence. Year-on-year organic volumes in Western Europe declined 4 percent in the third quarter of 2011, were flat in the second quarter of 2011, and increased 4 percent in the first quarter of 2011. The decline in both electronics-related businesses and Western Europe sales on a combined basis negatively impacted organic sales volume growth by nearly 4 percentage points. Normalized organic volume growth for the remainder of the Company was therefore closer to 6 percent.

3M estimates that combined direct and indirect business disruption resulting from the first-quarter 2011 Japan natural disaster, net of the benefit from sales of 3M products used in the reconstruction efforts, reduced first nine months 2011 sales growth by 0.9 percentage points, operating margins by 0.3 percentage points, and earnings by approximately 9 cents per diluted share, with nearly all of this impact in the first half of 2011. Automobile and electronic manufacturers have been most impacted; thus, 3M’s automotive OEM and electronics-related businesses were most effected. Japan

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represented approximately 9 percent of total 3M sales for total year 2010. As conditions improve in Japan, 3M has been working to capture additional sales for its businesses, such as products used in clean-up (construction and home improvement products), safety related products (respirator masks and personal protective equipment), energy savings/refurbishment products (window films) and products that help in the rebuilding effort (traffic safety, telecommunication/utility and commercial construction). Based on 3M’s current assessment, no material asset or investment impairments have been recorded. In addition, 3M is not aware of any significant issues related to this natural disaster concerning inventory, customer receivables, lease terminations, environmental exposures, guarantees, indemnifications, debt covenant compliance, or significant tax issues. 3M does have certain insurance coverage which could limit its exposure.

Net income attributable to 3M was $3.329 billion, or $4.61 per diluted share in the first nine months of 2011, compared to $3.157 billion, or $4.36 per diluted share, in the first nine months of 2010 (including the first quarter of 2010 special item discussed below). Sales in the first nine months of 2011 increased 12.9 percent to $22.5 billion, led by Industrial and Transportation, Safety, Security and Protection Services, Health Care, and Electro and Communications. All major geographic regions showed improvement, led by local-currency sales growth in Latin America and Asia Pacific (excluding Japan). The increase in global sales reflected improved market penetration and new product flow along with significant growth in important end-markets such as general industrial and personal safety.

The first quarter of 2010 results include a one-time, non-cash income tax charge of $84 million (11 cents per diluted share for the nine months ended September 30, 2010), resulting from the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010. Refer to the special items discussion at the end of this overview section for more detail.

The following table contains sales and operating income results by business segment for the three months ended September 30, 2011 and 2010.

	Three months ended September 30,
	2011						2010						% change
	Net			Operating			Net			Operating			Net		Operating
(Dollars in millions)	Sales			Income			Sales			Income			Sales		Income
Business Segments
Industrial and Transportation	$	2,580		$	525		$	2,171		$	434		18.8	%	21.1	%
Health Care	1,246			367			1,092			325			14.0		12.8
Display and Graphics	935			179			1,065			282			(12.2	)	(36.5	)
Consumer and Office	1,096			244			1,026			235			6.8		3.8
Safety, Security and Protection Services	954			202			811			164			17.6		22.9
Electro and Communications	838			181			803			183			4.4		(1.0	)
Corporate and Unallocated	1			(91		)	4			(26		)
Elimination of Dual Credit	(119		)	(26		)	(98		)	(21		)
Total Company	$	7,531		$	1,581		$	6,874		$	1,576		9.6	%	0.3	%

Sales in the third quarter of 2011 increased 9.6 percent, as five of six business segments experienced solid growth, led by Industrial and Transportation at 18.8 percent, Safety, Security and Protection Services at 17.6, and Health Care at 14.0 percent. Consumer and Office sales increased 6.8 percent and Electro and Communications sales increased 4.4 percent. Display and Graphics sales, due to fewer orders for optical films, declined 12.2 percent. Local-currency sales (which includes volume, selling price and acquisition impacts, but excludes divestiture and translation impacts) increased 6.5 percent and foreign currency impacts added 3.1 percent. 3M’s business segments posted operating income margins ranging from 19.1 percent to 29.5 percent in the third quarter of 2011. Worldwide operating income margins for the third quarter of 2011 were 21.0 percent, compared to 22.9 percent for the third quarter of 2010. Refer to the sections entitled “Results of Operations” and “Performance by Business Segment” later in MD&A for a more detailed discussion of the sales and income results of the Company and its respective business segments. Refer to Note 13 for discussion of Corporate and Unallocated and Elimination of Dual Credit.

3M generated approximately $3.5 billion of operating cash flows for both the nine months ended September 30, 2011 and 2010. Refer to the section entitled “Cash Flows from Operating Activities” later in the MD&A for a discussion of items impacting cash flows. In February 2011, 3M’s Board of Directors authorized the repurchase of up to $7.0 billion of 3M’s outstanding common stock, which replaced the Company’s previous repurchase program. This authorization has no pre-established end date. In the first nine months of 2011, the Company purchased $2.207 billion of treasury stock, of which a portion was under the previous authorization, compared to $415 million of treasury stock repurchases in the nine months

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ended September 30, 2010. As of September 30, 2011, approximately $5.1 billion of 3M common stock remained available for repurchase under the current authorization. In February 2011, 3M’s Board of Directors authorized a dividend increase of 4.8 percent for 2011, marking the 53rd consecutive year of dividend increases for 3M. 3M’s debt to total capital ratio (total capital defined as debt plus equity) was 26 percent at September 30, 2011, compared to 25 percent at December 31, 2010. 3M has an AA- credit rating with a stable outlook from Standard & Poor’s and an Aa2 credit rating with a stable outlook from Moody’s Investors Service. In addition to cash on hand, the Company has sufficient access to capital markets to meet currently anticipated growth and acquisition investment funding needs.

Looking ahead, 3M expects slower growth will continue through year-end 2011, therefore 3M is responding to lower demand with aggressive cost management and operational discipline, particularly in developed economies. At the same time, 3M continues to see opportunities in developing economies and plans to maintain key investments in R&D, sales and manufacturing to capitalize on underlying strength in those regions. Reflecting this outlook, 3M updated its 2011 full-year performance expectations. The Company currently expects full-year 2011 organic sales volume growth of 3 to 4 percent, currency effects adding 3 to 3.5 percent (assuming September 30, 2011 exchange rates continue into the fourth quarter), and acquisitions adding 3 to 3.5 percent for the year. This expected sales growth and related incremental operating income, including a benefit from currency effects, should more than offset the items that will negatively impact earnings, as summarized below.

There are a few major items that will negatively impact earnings in 2011. First, as discussed further below, 3M expects that pension and postretirement expense will decrease 2011 earnings, when compared to 2010, by approximately 22 cents per diluted share. A banked vacation policy change made in 2009 will also negatively impact earnings in 2011 when compared to 2010. Prior to 2009, 3M allowed employees to bank a certain amount of unused vacation. Effective January 1, 2009, 3M employees were given two years to use their previously banked vacation, with the resulting reduction in 3M’s liability benefiting both 2009 and 2010 operating results. This change resulted in an estimated 8 cent per diluted share benefit in 2010 results, which will not carry-over into 2011, and thus, will negatively impact 2011 versus 2010 comparisons. In addition, as discussed further above, the combined direct and indirect business disruption resulting from the Japan natural disaster, net of the benefit from sales of 3M products used in the reconstruction efforts, negatively impacted 2011 results. Finally, 3M’s assessment of the income tax rate indicates an expected 2011 effective tax rate of approximately 28.5 percent compared to 27.7 percent for 2010.

On a worldwide basis, 3M’s pension and postretirement plans were 90 percent funded at year-end 2010. The U.S. qualified plan, which is approximately 71 percent of the worldwide pension obligation, was 97 percent funded, the non-qualified pension plan was not funded, and the international pension plans were 89 percent funded. Asset returns in 2010 for the U.S. qualified plan were 14.4% while the year-end 2010 discount rate was 5.23%, down 0.54 percentage points from the 2009 discount rate of 5.77%. For total year 2011, 3M plans to contribute in the range of $500 million to $600 million of cash to its global pension and postretirement plans. The Company does not have a required minimum pension contribution obligation for its U.S. plans in 2011. 3M expects pension and postretirement benefit expense in 2011 to increase by approximately $215 million pre-tax, or 22 cents per diluted share, when compared to 2010. In 2012, 3M’s preliminary estimate is that pension and postretirement benefit expense will increase by approximately 10 cents per diluted share, when compared to 2011. For the U.S. qualified pension plan, this estimate is based on discount rates as of September 30, 2011 and assumes that September-to-date asset return performance levels hold. This preliminary estimate could change significantly depending on changes in the planned level of contribution amounts in 2012, changes in discount rates, changes in rates of return, or other factors.

Forward-looking statements in Part I, Item 2 may involve risks and uncertainties that could cause results to differ materially from those projected (refer to the section entitled “Cautionary Note Concerning Factors That May Affect Future Results” in Part I, Item 2 and the risk factors provided in Part II, Item 1A for discussion of these risks and uncertainties).

Special Items:

Special items represent significant charges or credits that are important to understanding changes in the Company’s underlying operations.

First quarter 2010 special items:

The first quarter of 2010 results include a one-time, non-cash income tax charge of $84 million (11 cents per diluted share for the nine months ended September 30, 2010), resulting from the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010 (collectively, the “Act”). The charge is due to a reduction in the value of the company’s deferred tax asset as a result of the

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Act’s change to the tax treatment of Medicare Part D reimbursements. This item is discussed in more detail in Note 5 (Income Taxes).

RESULTS OF OPERATIONS

Percent change information compares the third quarter or first nine months of 2011 with the same period last year, unless otherwise indicated.

Net Sales:

	Three months ended September 30, 2011
	United States			Asia Pacific			Europe, Middle East and Africa			Latin America/ Canada			Other Unallocated		Worldwide
Net sales (millions)	$	2,620		$	2,334		$	1,696		$	880		$	1	$	7,531
% of worldwide sales	34.8		%	31.0		%	22.5		%	11.7		%	—		100.0		%
Components of net sales change:
Volume — organic	3.3		%	0.2		%	(1.0		)%	6.7		%	—		1.9		%
Price	2.0			(1.8		)	1.8			3.8			—		0.9
Organic local-currency sales	5.3			(1.6		)	0.8			10.5			—		2.8
Acquisitions	3.9			3.7			5.1			0.7			—		3.7
Local-currency sales	9.2			2.1			5.9			11.2			—		6.5
Translation	—			5.1			5.3			2.8			—		3.1
Total sales change	9.2		%	7.2		%	11.2		%	14.0		%	—		9.6		%

Sales in the third quarter of 2011 increased 9.6 percent, with broad-based geographic area growth across all major geographic regions. Local-currency sales growth was 11.2 percent for the combined Latin America/Canada region, 9.2 percent for the United States, 5.9 percent for the Europe, Middle East and Africa region and 2.1 percent for Asia Pacific. The lower growth in Asia Pacific was partially attributable to organic volume and selling price declines in 3M’s optical systems business. 3M’s non-optical Asia Pacific sales increased 11.3 percent in local currency. Acquisitions added 3.7 percent to worldwide growth and currency impacts benefited third-quarter 2011 worldwide sales growth by 3.1 percent. Worldwide selling prices rose 0.9 percent in the third quarter, even though selling prices were negatively impacted by 3M’s optical systems business, where price-down is a necessary part of the business. Selling prices in 3M’s non optical systems businesses increased approximately 1.7 percent.

	Nine months ended September 30, 2011
	United States			Asia Pacific			Europe, Middle East and Africa			Latin America/ Canada			Other Unallocated			Worldwide
Net sales (millions)	$	7,606		$	6,992		$	5,363		$	2,565		$	(4	)	$	22,522
% of worldwide sales	33.8		%	31.0		%	23.8		%	11.4		%	—			100.0		%
Components of net sales change:
Volume — organic	4.1		%	5.5		%	2.8		%	7.2		%	—			4.6		%
Price	1.5			(1.7		)	1.2			3.1			—			0.6
Organic local-currency sales	5.6			3.8			4.0			10.3			—			5.2
Acquisitions	3.8			3.5			4.7			1.3			—			3.6
Local-currency sales	9.4			7.3			8.7			11.6			—			8.8
Translation	—			5.5			7.4			6.2			—			4.1
Total sales change	9.4		%	12.8		%	16.1		%	17.8		%	—			12.9		%

Sales in the first nine months of 2011 increased 12.9 percent, with broad-based geographic area growth across all major geographic regions. Local-currency sales growth was 11.6 percent for the combined Latin America/Canada region, 9.4 percent for the United States, 8.7 percent for the Europe, Middle East and Africa region, and 7.3 percent for Asia Pacific. The lower growth in Asia Pacific was partially attributable to organic volume and selling price declines in 3M’s optical systems business. 3M’s non-optical Asia Pacific sales increased 14.6 percent in local currency. Acquisitions added 3.6 percent to worldwide growth and currency impacts benefited first nine months 2011 worldwide sales growth by 4.1 percent. Worldwide selling prices rose 0.6 percent in the first nine months, even though selling prices were negatively impacted by 3M’s optical systems business, where price-down is a necessary part of business. Selling prices in 3M’s non optical systems businesses increased by approximately 1.3 percent.

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Operating Expenses:

	Three months ended						Nine months ended
	September 30,						September 30,
(Percent of net sales)	2011		2010		Change		2011		2010		Change
Cost of sales	53.4	%	52.1	%	1.3	%	52.7	%	51.5	%	1.2	%
Selling, general and administrative expenses	20.4		19.8		0.6		20.6		20.2		0.4
Research, development and related expenses	5.2		5.2		—		5.3		5.2		0.1
Operating income	21.0	%	22.9	%	(1.9	)%	21.4	%	23.1	%	(1.7	)%

As discussed in the overview section, 3M expects pension and postretirement expense (excluding any possible settlement, curtailment or other special termination benefits in 2011) to increase approximately $215 million for total year 2011 when compared to 2010. The year-on-year increase for the third-quarter and first nine months of 2011 was $44 million and $157 million, respectively. This increase negatively impacted cost of sales; selling, general and administrative expenses (SG&A); and research, development and related expenses (R&D).

Cost of sales includes manufacturing, engineering and freight costs. Cost of sales as a percent of net sales was 53.4 percent in the third quarter of 2011, an increase of 1.3 percentage points from the same quarter last year. This increase was partially attributable to the negative pension and postretirement impact discussed above (of which a portion impacts cost of sales) and slower organic volume growth, driven by declines in sales in electronics and Western Europe. As the third quarter progressed, sales did not develop as expected, particularly in September. 3M took actions to adjust its factory loading levels in some businesses, but the effects were not fully realized in the third quarter, resulting in some under-absorbed overhead, which negatively impacted third quarter results. 3M is mitigating these factors through ongoing savings in its factories, including faster line speeds, waste reduction, yield improvements, energy savings and other ongoing productivity savings, driven by 3M’s lean six sigma teams around the world. Selling price increases offset raw material inflation in the third quarter, as 3M continued to raise its selling prices, a necessity in light of higher raw material costs.

Cost of sales in the first nine months of 2011 was 52.7 percent, an increase of 1.2 percentage points from the same period last year. Like the third quarter, first nine months cost of sales as a percent of net sales was also negatively impacted by higher pension and postretirement costs. In addition, the impact of the natural disaster in Japan negatively impacted results. Selling price increases only partially offset raw material inflation in the first nine months of 2011, but for total year 2011 3M expects selling price increase to offset raw material inflation, except for the optical systems business. The preceding negative impacts were partially offset by the benefit from organic sales volume growth of 4.6 percent.

SG&A in dollars increased in both the third quarter and first nine months of 2011 by 13 percent and 15 percent, respectively, due to several factors. Third-quarter SG&A included increases from businesses acquired in the last twelve months (6 percentage points), primarily related to SG&A spending for the Winterthur Technologie AG, Arizant Inc., Cogent Inc. and Attenti Holdings S.A. acquisitions, which were not in 3M’s third-quarter or first nine-months 2010 base spending. In addition, SG&A was impacted by foreign exchange effects (4 percentage points), as the weak U.S. dollar resulted in higher translated costs from 3M’s international subsidiaries. To a lesser extent, higher year-on-year pension and postretirement expense and continued investments to support future growth in areas such as sales representatives, advertising and promotion also increased SG&A in the third-quarter. Factors that increased first nine-months 2011 SG&A included increases related to businesses acquired in the last 12 months, foreign exchange effects, higher year-on-year pension and postretirement expense, and continued investments. SG&A as a percent of net sales increased 0.6 percentage points in the third quarter of 2011 and 0.4 percentage points in the first nine months of 2011 when compared to the same periods last year.

R&D expense in dollars increased in the third quarter and first nine months by 10 percent and 14 percent, respectively. R&D expense was impacted by R&D increases from businesses acquired in the last 12 months, foreign exchange effects, and higher pension and postretirement expense, in addition to 3M’s continued investment in new products. R&D as a percent of sales remained unchanged in the third quarter and increased slightly to 5.3 percent of net sales for the first nine months of 2011 compared to 5.2 percent of net sales for the first nine months of 2010.

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Operating Income:

3M uses operating income as one of its primary business segment performance measurement tools.

Operating income margins were 21.0 percent in the third quarter of 2011 compared to 22.9 in the third quarter of 2010, a decrease of 1.9 points. Items which negatively impacted operating income related to increased pension and postretirement expense and slower organic volume growth. Operating income in dollars increased slightly to $1.581 billion, held back by these and other factors.

Operating income margins were 21.4 percent in the first nine months of 2011 compared to 23.1 percent of sales in the first nine months of 2010. From an operating income margin perspective, the benefits from organic sales volume leverage were more than offset by increased pension and postretirement expense, the net impact of selling price changes and raw material effects, and the impact of the natural disaster in Japan. Despite these factors, operating income dollars increased 4 percent to $4.8 billion.

Interest Expense and Income:

	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Interest expense	$	48		$	51		$	141		$	151
Interest income	(10		)	(11		)	(29		)	(27		)
Total	$	38		$	40		$	112		$	124

Interest expense was lower in the third quarter and first nine months of 2011 compared to the same period last year, primarily due to lower average U.S. long-term debt balances. Interest income was relatively flat year-on-year for both the third quarter and first nine months of 2011 compared to the same periods last year.

Provision for Income Taxes:

	Three months ended				Nine months ended
	September 30,				September 30,
(Percent of pre-tax income)	2011		2010		2011		2010
Effective tax rate	28.6	%	26.8	%	28.1	%	28.3	%

The effective tax rate for the third quarter of 2011 was 28.6 percent, compared to 26.8 percent in the third quarter of 2010, an increase of 1.8 percent. The effective tax rate for the first nine months of 2011 was 28.1 percent, compared to 28.3 percent in the first nine months of 2010, a decrease of 0.2 percent. The first nine months of 2010 includes a one-time income tax charge of $84 million as a result of the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010, which increased the first nine months 2010 effective tax rate by approximately 1.8 percent. Other factors on a combined net basis increased the effective tax rate for the third quarter and first nine months of 2011 when compared to the same periods last year, with the most significant item related to international taxes. This was due primarily to the one-time 2010 tax benefits resulting from the corporate alignment transactions that allowed the Company to increase its ownership of a foreign subsidiary. In addition to the transaction noted above, a corporate reorganization of a wholly owned subsidiary provided a one-time benefit to international taxes in the second quarter of 2011. The Company’s effective tax rate also benefited during the third quarter and first nine months of 2011 from the reinstatement of the research and development credit and adjustments to its income tax reserves. Refer to Note 5 for further discussion of income taxes.

The company currently expects that its effective tax rate for total year 2011 will be approximately 28.5 percent. The rate will change from quarter to quarter due to discrete items, such as the settlement of income tax audits and changes in tax laws, as well as recurring factors, such as the geographic mix of income before taxes.

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Net Income Attributable to Noncontrolling Interest:

	Three months ended				Nine months ended
	September 30,				September 30,
(Millions)	2011		2010		2011		2010
Net income attributable to noncontrolling interest	$	15	$	19	$	54	$	63

Net income attributable to noncontrolling interest represents the elimination of the income or loss attributable to non-3M ownership interests in 3M consolidated entities. The changes in noncontrolling interest amounts are primarily related to Sumitomo 3M Limited (Japan), which is 3M’s most significant consolidated entity with non-3M ownership interests. As of September 30, 2011, 3M’s effective ownership in Sumitomo 3M Limited is 75 percent.

Currency Effects:

3M estimates that year-on-year currency effects, including hedging impacts, increased net income attributable to 3M by approximately $51 million for the three months ended September 30, 2011 and increased net income attributable to 3M by approximately $131 million for the nine months ended September 30, 2011. This estimate includes the effect of translating profits from local currencies into U.S. dollars and the impact of currency fluctuations on the transfer of goods between 3M operations in the United States and abroad. This estimate also includes year-on-year currency effects from transaction gains and losses, including derivative instruments designed to reduce foreign currency exchange rate risks, which 3M estimates increased net income attributable to 3M by approximately $18 million for the three months ended September 30, 2011 and decreased net income attributable to 3M by approximately $8 million for the nine months ended September 30, 2011.

Significant Accounting Policies:

Information regarding new accounting standards is included in Note 1 to the Consolidated Financial Statements.

PERFORMANCE BY BUSINESS SEGMENT

As discussed in Note 13 to the Consolidated Financial Statements, effective in the first quarter of 2011, 3M made certain product moves between its six operating business segments. Segment information for all periods presented has been reclassified to reflect the new segment structure.

In addition to these six operating business segments, 3M assigns certain costs to “Corporate and Unallocated”, which is presented separately in the preceding business segments table and in Note 13. Corporate and unallocated includes a variety of miscellaneous items, such as corporate investment gains and losses, certain derivative gains and losses, insurance-related gains and losses, certain litigation and environmental expenses, corporate restructuring charges and certain under- or over-absorbed costs (e.g. pension, stock-based compensation) that the Company may choose not to allocate directly to its business segments. Because this category includes a variety of miscellaneous items, it is subject to fluctuation on a quarterly and annual basis. The primary item driving higher expenses in both the third quarter and first nine months of 2011 when compared to the same periods last year relates to pension and postretirement expense, as a portion of the 2011 increase in these expenses was not allocated directly to the six operating business segments.

Information related to 3M’s business segments for the third quarter and first nine months of both 2011 and 2010 is presented in the tables that follow. Organic local-currency sales include both organic volume impacts plus selling price impacts. Acquisition impacts, a component of local currency sales growth, are measured separately for the first twelve months of the acquisition. The divestiture impact, if any, translation impact and total sales change are also provided for each business segment. Any references to Europe relate to Europe, Middle East and Africa on a combined basis.

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Industrial and Transportation Business:

	Three months ended						Nine months ended
	September 30,						September 30,
	2011			2010			2011			2010
Sales (millions)	$	2,580		$	2,171		$	7,671		$	6,328
Sales change analysis:
Organic local currency.	8.3		%	13.9		%	10.6		%	19.6		%
Acquisitions	6.8			0.3			5.9			0.1
Local currency	15.1			14.2			16.5			19.7
Translation	3.7			—			4.7			1.8
Total sales change	18.8		%	14.2		%	21.2		%	21.5		%
Operating income (millions)	$	525		$	434		$	1,585		$	1,340
Percent change	21.1		%	13.8		%	18.3		%	60.8		%
Percent of sales	20.4		%	20.0		%	20.7		%	21.2		%

The Industrial and Transportation segment serves a broad range of markets, such as appliance, paper and packaging, food and beverage, electronics, automotive original equipment manufacturer (OEM) and automotive aftermarket (auto body shops and retail). Industrial and Transportation products include tapes, a wide variety of coated and non-woven abrasives, adhesives, specialty materials, filtration products, energy control products, closure systems for personal hygiene products, acoustic systems products, and components and products that are used in the manufacture, repair and maintenance of automotive, marine, aircraft and specialty vehicles.

Third quarter of 2011:

Sales in Industrial and Transportation increased 18.8 percent to $2.6 billion. In local-currency terms, sales increased 15.1 percent, which included 6.8 percent from acquisitions, primarily Winterthur Technologie AG (Winterthur) and Alpha Beta Enterprise Co. Ltd. (Alpha Beta), which are discussed further below. Foreign currency impacts added 3.7 percent to third quarter sales growth. Sales growth was broad-based, as every business in this segment posted local-currency sales increases. Local-currency sales growth was led by abrasives, renewable energy, aerospace and aircraft maintenance, and industrial adhesives and tapes. Geographically, sales grew in all major regions, with increases of 28 percent in Asia Pacific, 22 percent in Europe, 15 percent in Latin America/Canada, and 10 percent in the U.S.

Industrial and Transportation continues to invest aggressively to accelerate its growth capability. In March 2011, 3M 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. In addition, in February 2011, 3M completed its acquisition of the tape-related assets of Alpha Beta, a leading manufacturer of box sealing tape and masking tape headquartered in Taipei, Taiwan.

Operating income was $525 million in the third quarter, 21.1 percent higher than the third quarter of last year. Strong revenue growth drove operating income growth.

First nine months of 2011:

Sales in Industrial and Transportation increased 21.2 percent to $7.7 billion. In local-currency terms, sales increased 16.5 percent, with 10.6 percent of this increase driven by organic local-currency growth. Acquisitions increased sales by 5.9 percent, primarily driven by Winterthur and Alpha Beta (discussed above). Foreign currency impacts added 4.7 percent to first nine months sales growth. Geographically, local-currency sales growth increased in all major regions, led by Asia Pacific and Europe. Like the third quarter, local-currency sales growth was broad-based across the portfolio, led by renewable energy, abrasives systems, aerospace and aircraft maintenance, and industrial adhesives and tapes.

Operating income was $1.6 billion in the first nine months of 2011, 18.3 percent higher than the same period last year. 3M achieved operating income margins of 20.7 percent, even with continued investments to support growth.

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Health Care Business:

	Three months ended						Nine months ended
	September 30,						September 30,
	2011			2010			2011			2010
Sales (millions)	$	1,246		$	1,092		$	3,770		$	3,316
Sales change analysis:
Organic local currency.	5.6		%	1.7		%	4.3		%	4.9		%
Acquisitions	5.3			0.1			5.2			—
Local currency	10.9			1.8			9.5			4.9
Divestitures	—			(0.3		)	—			(0.2		)
Translation	3.1			(0.4		)	4.2			1.0
Total sales change	14.0		%	1.1		%	13.7		%	5.7		%
Operating income (millions)	$	367		$	325		$	1,100		$	1,015
Percent change	12.8		%	(3.7		)%	8.4		%	4.4		%
Percent of sales	29.5		%	29.8		%	29.2		%	30.6		%

The Health Care segment serves markets that include medical clinics and hospitals, pharmaceuticals, dental and orthodontic practitioners, and health information systems. Products and services provided to these and other markets include medical and surgical supplies, skin health and infection prevention products, inhalation and transdermal drug delivery systems, dental and orthodontic products (oral care), health information systems, and food safety products.

Third quarter of 2011:

Health Care sales increased 14.0 percent to $1.2 billion. Local-currency sales increased 10.9 percent, including a benefit of 5.3 percent from acquisitions, primarily related to the Arizant Inc. acquisition in the fourth quarter of 2010. Arizant Inc. is a leading manufacturer of patient warming solutions designed to prevent hypothermia in surgical settings. Currency impacts increased sales by 3.1 percent. On a geographic basis, all regions posted positive sales growth, with Asia Pacific up 20 percent, Latin America/Canada up 16 percent, Europe up 13 percent, and the U.S. up 12 percent. Local currency sales were led by growth in infection prevention, health information systems, skin and wound care, oral care and food safety. Business conditions remained challenging in drug delivery systems, with sales declining year-on-year.

Operating income increased 12.8 percent to $367 million. Operating income margins were 29.5 percent in the third quarter of 2011 compared to 29.8 percent in the third quarter of 2010.

First nine months of 2011:

Health Care sales increased 13.7 percent to $3.8 billion. Local-currency sales increased 9.5 percent, including 5.2 percent from acquisitions. Acquisition growth primarily related to the Arizant Inc. acquisition (discussed above). Currency impacts increased sales by 4.2 percent. On a geographic basis, all regions posted positive sales growth, with Asia Pacific up 21 percent, Latin America/Canada up 18 percent, Europe up 13 percent, and the U.S. up 11 percent. Local currency sales were led by infection prevention, food safety, health information systems, skin and wound care, and oral care. As in the third quarter, business conditions remained challenging in drug delivery systems, with sales declining year-on-year.

Operating income increased 8.4 percent to $1.1 billion. Operating income margins were 29.2 percent, compared to 30.6 percent in the first nine months of 2010, with this decrease partially due to continued investments and the decline in drug delivery system sales. 3M has been investing in emerging markets over the past couple of years to accelerate penetration in 3M’s health care platforms. 3M’s long-term expectation is that operating income margins will be in the high 20’s for this business segment, as 3M continues to invest to grow this business.

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Display and Graphics Business:

	Three months ended						Nine months ended
	September 30,						September 30,
	2011			2010			2011			2010
Sales (millions)	$	935		$	1,065		$	2,851		$	2,981
Sales change analysis:
Organic local currency.	(14.2		)%	18.4		%	(7.0		)%	27.5		%
Acquisitions	0.1			—			0.1			—
Local currency	(14.1		)	18.4			(6.9		)	27.5
Translation	1.9			0.4			2.5			1.3
Total sales change	(12.2		)%	18.8		%	(4.4		)%	28.8		%
Operating income (millions)	$	179		$	282		$	631		$	802
Percent change	(36.5		)%	36.7		%	(21.4		)%	78.7		%
Percent of sales	19.1		%	26.4		%	22.1		%	26.9		%

The Display and Graphics segment serves markets that include electronic display, traffic safety and commercial graphics. This segment includes optical film solutions for LCD electronic displays; computer screen filters; reflective sheeting for transportation safety; commercial graphics sheeting and systems; and mobile interactive solutions, including mobile display technology, visual systems products, and computer privacy films.

Third quarter of 2011:

Sales in Display and Graphics were $935 million in the third quarter, a decline of 12.2 percent in U.S. dollars. Sales in local currency declined 14.1 percent, which was largely organic. Foreign currency impacts increased sales by 1.9 percent. Optical systems sales declined 28 percent, driven by end-market weakness and lower attachment rates in LCD TVs. Retail TV demand continues to be soft, therefore OEMs are lowering brightness specifications in order to reduce cost and selling prices. In addition, OEMs are slowing production to lower inventories. On the positive side, 3M continues to see strong attachment rates on battery-powered devices such as tablet PCs, smart phones and notebooks, where the value proposition for 3M films is very strong. Local-currency sales in non-optical businesses declined 0.8 percent. Local-currency sales in traffic safety systems declined, as highway construction spending remains soft in both the U.S. and Western Europe. Local-currency sales increased in 3M’s commercial graphics and architectural markets businesses. The architectural markets business brings new solutions and technologies for surface and glass finishes and lighting into the architectural and design market. Sales increased 10 percent in Latin America/Canada and were flat in the U.S. Sales declined 4 percent in Europe and declined 20 percent in Asia Pacific, where the decrease in optical systems sales was a major factor.

Operating income in the third quarter of 2011 totaled $179 million, or 19.1 percent of sales, compared to 26.4 percent in the third quarter of 2010, with the difference largely attributable to the decline in optical systems sales.

First nine months of 2011:

Sales in Display and Graphics were $2.9 billion in the first nine months, a decline of 4.4 percent in U.S. dollars. Sales in local currency declined 6.9 percent, which was largely organic. Foreign currency impacts increased sales by 2.5 percent. Optical Systems sales decreased 17 percent due to lower year-on-year LCD TV-related sales in the second and third quarter of 2011. Sales grew in commercial graphics and architectural markets. Traffic safety systems also posted sales growth, albeit all currency related. Sales increased in all geographic regions, except Asia Pacific, where the decline in optical systems sales was a major factor.

Operating income in the first nine months of 2011 totaled $631 million, or 22.1 percent of sales. 3M achieved strong operating income margins in this business segment, despite the slowdown in optical systems.

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Consumer and Office Business:

	Three months ended						Nine months ended
	September 30,						September 30,
	2011			2010			2011			2010
Sales (millions)	$	1,096		$	1,026		$	3,134		$	2,892
Sales change analysis:
Organic local currency.	4.5		%	9.0		%	4.4		%	7.4		%
Acquisitions	0.1			2.1			0.8			3.1
Local currency	4.6			11.1			5.2			10.5
Translation	2.2			0.1			3.2			1.4
Total sales change	6.8		%	11.2		%	8.4		%	11.9		%
Operating income (millions)	$	244		$	235		$	661		$	665
Percent change	3.8		%	3.9		%	(0.6		)%	13.0		%
Percent of sales	22.3		%	22.9		%	21.1		%	23.0		%

The Consumer and Office segment serves markets that include consumer retail, office retail, home improvement, building maintenance and other markets. Products in this segment include office supply products, stationery products, construction and home improvement products (do-it-yourself), home care products, protective material products, certain consumer retail personal safety products, and consumer health care products.

Third quarter of 2011:

Sales in Consumer and Office increased 6.8 percent in the third quarter to $1.1 billion, led by construction and home improvement, home care, and consumer health care. Seasonal sales and new products helped drive growth, as back to school results provided improved sales of 3M’s Command™ brand hooks and mounting solutions. 3M also expanded its family of Filtrete™ products, with a new carbon-based home furnace filter that eliminates odors and allergens. 3M also continued to grow sales in the home care market, leveraging its Scotch-Brite® brand. Local-currency sales increased 4.6 percent, which was largely organic. Foreign currency impacts contributed 2.2 percent to sales growth. On a geographic basis, sales increased in all regions, with sales growth in Asia Pacific up 18 percent, Latin America/Canada up 11 percent, Europe up 5 percent, and the U.S. up 4 percent.

Consumer and Office operating income increased 3.8 percent to $244 million. Consumer and Office generated operating income margins of 22.3 percent, compared to 22.9 percent in the same period last year.

First nine months of 2011:

Sales in Consumer and Office increased 8.4 percent in the first nine months to $3.1 billion, with all businesses posting positive sales growth. Local-currency sales increased 5.2 percent, which included 4.4 percent from organic growth and 0.8 percent from acquisitions. Acquisition growth was largely due to the April 2010 acquisition of the A-One branded label business and related operations. A-One is the largest branded label business in Asia and the second largest worldwide.  3M also acquired Hybrivet Systems Inc. in the first quarter of 2011, a provider of instant-read products to detect lead and other contaminants and toxins. Foreign currency impacts contributed 3.2 percent to sales growth. On a geographic basis, sales increased in all regions, with sales growth in Asia Pacific up 23 percent, Latin America/Canada up 15 percent, Europe up 9 percent, and the U.S. up 3 percent.

Consumer and Office operating income decreased 0.6 percent to $661 million, reflecting continued ongoing investments in developing economies in brand development and marketing and sales coverage. Even with these investments, Consumer and Office generated operating income margins of 21.1 percent.

3M announced in July 2011 that it entered into an agreement to acquire the do-it-yourself and professional business of GPI Group, headquartered in France. GPI is a manufacturer and marketer of home improvement products such as tapes, hooks, insulation and floor protection products and accessories. The addition of GPI’s products will expand 3M’s product portfolio in core and complementary categories in the construction and home improvement markets. This transaction closed in October 2011.

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Safety, Security and Protection Services Business:

	Three months ended						Nine months ended
	September 30,						September 30,
	2011			2010			2011			2010
Sales (millions)	$	954		$	811		$	2,894		$	2,468
Sales change analysis:
Organic local currency.	8.4		%	(2.3		)%	6.3		%	7.0		%
Acquisitions	5.7			0.4			6.3			0.1
Local currency	14.1			(1.9		)	12.6			7.1
Translation	3.5			(0.9		)	4.7			1.1
Total sales change	17.6		%	(2.8		)%	17.3		%	8.2		%
Operating income (millions)	$	202		$	164		$	643		$	544
Percent change	22.9		%	(28.0		)%	18.2		%	1.7		%
Percent of sales	21.1		%	20.2		%	22.2		%	22.0		%

The Safety, Security and Protection Services segment serves a broad range of markets that increase the safety, security and productivity of workers, facilities and systems. Major product offerings include personal protection products, cleaning and protection products for commercial establishments, safety and security products (including border and civil security solutions), roofing granules for asphalt shingles, corrosion protection products used in the oil and gas pipeline markets, and track and trace solutions.

Third quarter of 2011:

Safety, Security and Protection Services sales increased 17.6 percent in the third quarter of 2011. Local-currency sales growth was 14.1 percent, which included 5.7 percent growth from acquisitions. The acquisition benefit primarily related to two fourth-quarter 2010 acquisitions, namely Attenti Holdings S.A. and Cogent Inc. Attenti Holdings S.A. is a supplier of remote people-monitoring technologies used for offender-monitoring applications and to assist eldercare facilities in monitoring and enhancing the safety of patients. Cogent Inc. is a provider of finger, palm, face and iris biometric systems for governments, law enforcement agencies, and commercial enterprises. Foreign currency effects added 3.5 percent to third-quarter sales. All geographic regions posted sales growth, with the U.S. up 28 percent, Asia Pacific up 25 percent, Latin America/Canada up 21 percent and Europe up 1 percent.

Local-currency sales increased in all businesses, led by personal protection products, with good gains in both respiratory and hearing protection, two sizable platforms within this business. 3M also saw a surge in sales of roofing granules, driven by last summer’s heavy tornado season. That demand has worked its way through the channel and 3M anticipates some slowing in this business in the fourth quarter. 3M also saw growth in track and trace, security systems, and corrosion protection, which all had local-currency sales increases of more than 10 percent.

Operating income for the third quarter of 2011 rose 22.9 percent to $202 million, with a 21.1 percent operating income margin.

First nine months of 2011:

Safety, Security and Protection Services sales increased 17.3 percent in the first nine months of 2011. H1N1-related comparisons reduced first nine months 2011 sales growth by 3.4 percent, as 3M generated sales related to the H1N1 virus in the first three quarters of 2010. Even with this difficult comparison, local-currency sales growth was 12.6 percent, which included 6.3 percent growth from acquisitions. The acquisition benefit primarily related to Attenti Holdings S.A. and Cogent Inc. (which are discussed above). Foreign currency effects added 4.7 percent to first nine months sales. All geographic regions posted positive sales growth, with Asia Pacific up 24 percent, Latin America/Canada up 21 percent, the U.S. up 17 percent, and Europe up 11 percent.

Local-currency sales increased in all businesses, led by personal protection products, track and trace, security systems, building and commercial services, and corrosion protection. Sales growth in personal protection products, or more specifically, respiratory products, was hampered by H1N1-related comparisons, but at the same time, 3M did see some modest additional sales of personal protective equipment related to the cleanup efforts in Japan.

Operating income for the first nine months of 2011 rose 18.2 percent to $643 million. 3M achieved a 22.2 percent operating income margin, despite H1N1-related comparisons that negatively impacted results.

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Electro and Communications Business:

	Three months ended						Nine months ended
	September 30,						September 30,
	2011			2010			2011			2010
Sales (millions)	$	838		$	803		$	2,538		$	2,254
Sales change analysis:
Organic local currency.	0.9		%	22.4		%	8.2		%	28.8		%
Acquisitions	0.1			—			0.1			—
Local currency	1.0			22.4			8.3			28.8
Divestitures	—			(0.2		)	—			(0.6		)
Translation	3.4			1.3			4.3			2.3
Total sales change	4.4		%	23.5		%	12.6		%	30.5		%
Operating income (millions)	$	181		$	183		$	559		$	506
Percent change	(1.0		)%	46.1		%	10.6		%	125.8		%
Percent of sales	21.6		%	22.8		%	22.0		%	22.4		%

The Electro and Communications segment serves the electrical, electronics and communications industries, including electrical utilities; electrical construction, maintenance and repair; original equipment manufacturer (OEM) electrical and electronics; computers and peripherals; consumer electronics; telecommunications central office, outside plant and enterprise; as well as aerospace, military, automotive and medical markets; with products that enable the efficient transmission of electrical power and speed the delivery of information. Products include electronic and interconnect solutions, micro interconnect systems, high-performance fluids, high-temperature and display tapes, telecommunications products, electrical products, and touch screens and touch monitors.

Third quarter of 2011:

Electro and Communications sales totaled $838 million in the third quarter, an increase of 4.4 percent in U.S. dollars and 1.0 percent in local currency. Foreign currency impacts added 3.4 percent to third-quarter sales growth. Sales expanded in all geographic regions, led by approximately 7 percent growth in both Europe and the U.S., 3 percent in Asia Pacific, and 2 percent in Latin America/Canada. Sales growth was led by 3M’s electrical markets business, which supplies connectors and related solutions to the power utility, MRO (maintenance, repair and overhaul) and OEM markets. 3M also saw growth in the communications markets business. Sales to electronics-related businesses, which relate to 3M’s electronics markets materials and electronic solutions businesses, were up slightly on a combined basis, negatively impacted by decelerating market demand. This slowdown is expected to persist for the next few quarters.

Operating income decreased 1.0 percent to $181 million in the third quarter of 2011. Operating income margins were 21.6 percent, compared to 22.8 percent in the third quarter of 2010, impacted by weak electronics-related businesses demand.

First nine months of 2011:

Electro and Communications sales were $2.5 billion in the first nine months of 2011, an increase of 12.6 percent in U.S. dollars and 8.3 percent in local currency. Foreign currency impacts added 4.3 percent to first nine months sales growth. Sales expanded in all geographic regions, led by approximately 16 percent growth in Europe, 14 percent growth in Asia Pacific, 13 percent growth in Latin America/Canada, and 7 percent growth in the U.S. Sales growth was led by 3M’s electronics markets materials business and the electrical markets business. The telecom business also posted solid sales growth.

Operating income increased 10.6 percent to $559 million in the first nine months of 2011, driven by higher year-on-year sales growth. Operating income margins were 22.0 percent, slightly lower than the first nine months of 2010.

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FINANCIAL CONDITION AND LIQUIDITY

As indicated in the following table, 3M’s net debt at September 30, 2011 totaled $854 million, compared to $434 million at December 31, 2010. At September 30, 2011, 3M had $5.3 billion of cash, cash equivalents, and marketable securities and $6.2 billion of debt. Debt included $5.0 billion of long-term debt and $1.2 billion related to the current portion of long-term debt and other borrowings. The current portion of long-term debt includes $800 million (principal amount) of medium-term notes due in November 2011. The strength of 3M’s capital structure and consistency of its cash flows provide 3M reliable access to capital markets. Additionally, the Company’s debt maturity profile is staggered to ensure refinancing needs in any given year are reasonable in proportion to the total portfolio.

The Company generates significant ongoing cash flow, which has been used, in part, to fund share repurchase activities, pay dividends on 3M common stock, and for acquisitions. As discussed in Note 2, in the first nine months of 2011, the Company acquired Winterthur Technologie AG and other businesses for an aggregate $531 million in cash. This is in addition to several significant fourth-quarter 2010 acquisitions, when the Company purchased Arizant Inc., Attenti Holdings S.A. and Cogent Inc. 3M was able to complete these acquisitions without incurring significant additional debt, while maintaining a strong cash, cash equivalents and marketable securities position.

	Sept. 30,		Dec. 31,
(Millions)	2011		2010
Total Debt	$	6,159	$	5,452
Less: Cash and cash equivalents and marketable securities	5,305		5,018
Net Debt	$	854	$	434

The Company defines net debt as total debt less cash, cash equivalents and marketable securities. 3M considers net debt to be an important measure of liquidity and its ability to meet ongoing obligations. This measure is not defined under U.S. generally accepted accounting principles and may not be computed the same as similarly titled measures used by other companies.

Operating cash flow of $3.546 billion in the first nine months of 2011 was utilized for items such as net treasury stock repurchases ($1.342 billion), dividends paid to shareholders ($1.171 billion), capital spending ($862 million), and acquisitions ($531 million). The Company has sufficient liquidity to meet currently anticipated growth plans, including capital expenditures, working capital investments and acquisitions. The Company does not utilize derivative instruments linked to the Company’s stock.

The Company’s financial condition and liquidity are strong. Various assets and liabilities, including cash and short-term debt, can fluctuate significantly from month to month depending on short-term liquidity needs. Working capital (defined as current assets minus current liabilities) totaled $7.504 billion at September 30, 2011, compared with $6.126 billion at December 31, 2010. Working capital increases were primarily attributable to increases in accounts receivable and inventory (discussed later in this section), in addition to increases in current marketable securities.

Primary short-term liquidity needs are met through U.S. commercial paper and euro commercial paper issuances. The Company maintains a commercial paper program that allows 3M to have a maximum of $3 billion outstanding with a maximum maturity of 397 days from date of issuance. As of September 30, 2011 and December 31, 2010, 3M had no outstanding commercial paper. The Company believes it is unlikely that its access to the commercial paper market will be restricted.

In August 2011, 3M entered into a $1.5 billion, five-year multi-currency revolving credit agreement, which replaced the existing agreement that was due to expire in April 2012. This credit agreement includes a provision under which 3M may request an increase of up to $500 million, bringing the total facility up to $2 billion (at the lenders’ discretion). This facility was undrawn at September 30, 2011. Also in August 2011, 3M entered into a $200 million, one-year letter of credit agreement with HSBC Bank USA. This agreement replaced the sublimit for letters of credit that was previously encompassed in the $1.5 billion five-year facility. As of September 30, 2011, 3M letters of credit issued under this $200 million facility totaled $121 million. An additional $102 million in U.S. letters of credit was outstanding with other banking partners. These letters of credit are utilized in connection with normal business activities. Under both the $1.5 billion and $200 million credit agreements, the Company is required to maintain its EBITDA to Interest Ratio as of the end of each fiscal quarter at not less than 3.0 to 1. This is calculated (as defined in the agreement) as the ratio of consolidated total EBITDA for the four consecutive quarters then ended to total interest expense on all funded debt for the same period. At September 30, 2011, this ratio was approximately 38 to 1. Debt covenants do not restrict the payment of dividends.

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The Company has a “well-known seasoned issuer” shelf registration statement, effective August 5, 2011, which registers an indeterminate amount of debt or equity securities for future sales. The Company intends to use the proceeds from future securities sales off this shelf for general corporate purposes. This replaced 3M’s previous shelf registration dated February 17, 2009. In September 2011, in connection with the August 5, 2011 “well-known seasoned issuer” registration statement, 3M established a $3 billion medium-term notes program (Series F), from which 3M issued a five-year $1 billion fixed rate note with a coupon rate of 1.375%. Proceeds will be used for general corporate purposes, including repayment of $800 million (principal amount) of medium-term notes due in November 2011.

In connection with a prior “well-known seasoned issuer” shelf registration, in June 2007 the Company established a $3 billion medium-term notes program. Three debt securities have been issued under this medium-term notes program. First, in December 2007, 3M issued a five-year, $500 million, fixed rate note with a coupon rate of 4.65%. Second, in August 2008, 3M issued a five-year, $850 million, fixed rate note with a coupon rate of 4.375%. Third, in October 2008, the Company issued a three-year $800 million, fixed rate note with a coupon rate of 4.50%. The Company entered into an interest rate swap to convert this $800 million note to a floating rate.

The Company has an AA- credit rating, with a stable outlook, from Standard & Poor’s and an Aa2 credit rating, with a stable outlook, from Moody’s Investors Service. 3M’s strong balance sheet and liquidity provide the Company with significant flexibility to take advantage of numerous opportunities going forward. The Company will continue to invest in its operations to drive growth, including continual review of acquisition opportunities. 3M has a long history of dividend increases. In February 2011, the Board of Directors increased the quarterly dividend on 3M common stock by 4.8 percent to 55 cents per share, equivalent to an annual dividend of $2.20 per share. In February 2011, 3M’s Board of Directors authorized the repurchase of up to $7.0 billion of 3M’s outstanding common stock, which replaced the Company’s previous repurchase program. This authorization has no pre-established end date. At September 30, 2011, the Company has $5.1 billion remaining under the current authorization.

For the nine months ended September 30, 2011, contributions totaling $310 million were made to the Company’s U.S. and international pension plans (including $233 million in the third quarter of 2011) and $63 million to its postretirement plans. For total year 2011, the Company plans to contribute in the range of $500 million to $600 million to its U.S. and international pension and postretirement plans. The Company does not have a required minimum pension contribution obligation for its U.S. plans in 2011. Therefore, the amount of the anticipated discretionary contribution could vary significantly depending on the U.S. qualified plans’ funded status as of the 2011 measurement date and the anticipated tax deductibility of the contribution. Future contributions will also depend on market conditions, interest rates and other factors. 3M believes its strong cash flow and balance sheet will allow it to fund future pension needs without compromising growth opportunities.

The Company uses various working capital measures that place emphasis and focus on certain working capital assets and liabilities. These measures are not defined under U.S. generally accepted accounting principles and may not be computed the same as similarly titled measures used by other companies. One of the primary working capital measures 3M uses is a combined index, which includes accounts receivable, inventory and accounts payable. This combined index (defined as current quarterly net sales multiplied by four, divided by the sum of ending net accounts receivable plus inventory less accounts payable) was 4.9 at September 30, 2011, down from 5.3 at December 31, 2010 and 5.1 at September 30, 2010. Receivables increased $644 million, or 18 percent, compared with December 31, 2010, with higher September 2011 sales compared to December 2010 sales contributing to this increase. In addition, acquisitions increased accounts receivable by $83 million. Inventories increased $449 million, or 14 percent, compared with December 31, 2010, with acquisitions accounting for $103 million of this increase. While inventory was impacted by slower than expected sales in the third quarter of 2011, particularly in September 2011, inventory turns for the period ended September 30, 2011 were consistent with both December 31, 2010 and September 30, 2010 turns. Accounts payable increased $27 million compared with December 31, 2010, with acquisitions accounting for $49 million of this increase and the balance primarily related to the net effects of currency translation and changes in business activity.

Cash flows from operating, investing and financing activities are provided in the tables that follow. Individual amounts in the Consolidated Statement of Cash Flows exclude the effects of acquisitions, divestitures and exchange rate impacts on cash and cash equivalents, each of which are presented separately in the cash flows. Thus, the amounts presented in the following operating, investing and financing activities tables reflect changes in balances from period to period adjusted for these effects.

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

60

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.

Cash Flows from Operating Activities:

	Nine months ended
	September 30,
(Millions)	2011			2010
Net income including noncontrolling interest	$	3,383		$	3,220
Depreciation and amortization	919			837
Company pension contributions	(310		)	(392		)
Company postretirement contributions	(63		)	(39		)
Company pension expense	321			204
Company postretirement expense	79			39
Stock-based compensation expense	210			228
Income taxes (deferred and accrued income taxes)	175			180
Excess tax benefits from stock-based compensation	(52		)	(43		)
Accounts receivable	(557		)	(529		)
Inventories	(364		)	(521		)
Accounts payable	(30		)	173
Product and other insurance receivables and claims	(45		)	44
Other — net	(120		)	142
Net cash provided by operating activities	$	3,546		$	3,543

Cash flows from operating activities can fluctuate significantly from period to period, as pension funding decisions, tax timing differences and other items can significantly impact cash flows.

In the first nine months of 2011, cash flows provided by operating activities increased slightly compared to the first nine months of 2010. The main positive contribution to operating cash flows related to year-on-year increases in net income including noncontrolling interest. Two primary items reduced operating cash flows. First, 3M invested in working capital (which includes accounts receivable, inventories and accounts payable) in support of its growth. Working capital increased $951 million in the first nine months of 2011, with higher September 2011 sales compared to December 2010 sales contributing to this increase. This compared to working capital increases of $877 million in the first nine months of 2010. Second, “Other-net” decreased cash flows by $120 million in the first nine months of 2011 compared to an increase of $142 million in the first nine months of 2010. The category, “Other-net,” in the preceding table reflects changes in other asset and liability accounts, such as a decrease in accrued payroll amounts related to payments of certain annual incentives in the first nine months of 2011, which reduced liabilities.

Free Cash Flow (non-GAAP measure):

In addition to net cash provided by operating activities, 3M uses free cash flow as a useful measure of performance and as an indication of the strength of the Company and its ability to generate cash. 3M defines free cash flow as net cash provided by operating activities less purchases of property, plant and equipment (which is classified as an investing activity). Free cash flow is not defined under U.S. generally accepted accounting principles (GAAP). Therefore, it should not be considered a substitute for income or cash flow data prepared in accordance with U.S. GAAP and may not be comparable to similarly titled measures used by other companies. It should not be inferred that the entire free cash flow amount is available for discretionary expenditures. Below find a recap of free cash flow for the nine months ended September 30, 2011 and 2010.

	Nine months ended
	September 30,
(Millions)	2011			2010
Net cash provided by operating activities	$	3,546		$	3,543
Purchases of property, plant and equipment (PP&E)	(862		)	(565		)
Free Cash Flow	$	2,684		$	2,978

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Cash Flows from Investing Activities:

	Nine months ended
	September 30,
(Millions)	2011			2010
Purchases of property, plant and equipment (PP&E)	$	(862	)	$	(565	)
Proceeds from sale of PP&E and other assets	12			7
Acquisitions, net of cash acquired	(531		)	(48		)
Purchases and proceeds from sale or maturities of marketable securities and investments, net	(197		)	(268		)
Other investing	(6		)	(3		)
Net cash used in investing activities	$	(1,584	)	$	(877	)

Investments in property, plant and equipment enable growth in many diverse markets, helping to meet product demand and increasing manufacturing efficiency. Capital expenditures were $862 million in the first nine months of 2011, an increase of $297 million when compared to the first nine months of 2010. A large portion of this investment is addressing supply constraints in a number of businesses that are growing rapidly, including renewable energy, traffic signage in developing economies, and optically clear adhesives and glass bubbles. Importantly, 3M’s capital spending is increasingly shifting toward international markets and, in particular, fast-growing developing economies, as 3M continues to migrate manufacturing to better balance sales with manufacturing capability. The Company expects 2011 capital spending to be approximately $1.3 to $1.5 billion as 3M continues to fund growth opportunities around the world.

Refer to Note 2 for information on 2011 acquisitions. The Company is actively considering additional acquisitions, investments and strategic alliances, and from time to time may also divest certain businesses.

Purchases of marketable securities and investments and proceeds from sale (or maturities) of marketable securities and investments are primarily attributable to asset-backed securities, agency securities, corporate medium-term note securities and other securities, which are classified as available-for-sale. Interest rate risk and credit risk related to the underlying collateral may impact the value of investments in asset-backed securities, while factors such as general conditions in the overall credit market and the nature of the underlying collateral may affect the liquidity of investments in asset-backed securities. The coupon interest rates for asset-backed securities are either fixed rate or floating. Floating rate coupons reset monthly or quarterly based upon the corresponding monthly or quarterly LIBOR rate. Each individual floating rate security has a coupon based upon the respective LIBOR rate +/- an amount reflective of the credit risk of the issuer and the underlying collateral on the original issue date. Terms of the reset are unique to individual securities. Fixed rate coupons are established at the time the security is issued and are based upon a spread to a related maturity treasury bond. The spread against the treasury bond is reflective of the credit risk of the issuer and the underlying collateral on the original issue date. 3M does not currently expect risk related to its holdings in asset-backed securities to materially impact its financial condition or liquidity. Refer to Note 6 for more details about 3M’s diversified marketable securities portfolio, which totaled $1.929 billion as of September 30, 2011. Purchases of marketable securities and investments, net of proceeds from sales or maturities, totaled $197 million and $268 million, respectively, in the first nine months of 2011 and 2010. Purchases of investments also include additional survivor benefit insurance and equity investments.

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Cash Flows from Financing Activities:

	Nine months ended
	September 30,
(Millions)	2011			2010
Change in short-term debt — net	$	(13	)	$	(31	)
Repayment of debt (maturities greater than 90 days)	(474		)	(135		)
Proceeds from debt (maturities greater than 90 days)	1,108			9
Total cash change in debt	$	621		$	(157	)
Purchases of treasury stock	(2,207		)	(415		)
Reissuances of treasury stock	865			505
Dividends paid to stockholders	(1,171		)	(1,124		)
Excess tax benefits from stock-based compensation	52			43
Other — net	(58		)	(77		)
Net cash used in financing activities	$	(1,898	)	$	(1,225	)

Total debt at September 30, 2011, was $6.2 billion, up from $5.5 billion at year-end 2010. Total debt was 26 percent of total capital (total capital is defined as debt plus equity) at September 30, 2011, compared to 25 percent of total capital at year-end 2010. Repayment of debt in the first nine months of 2011 includes redemption of Convertible Notes, repayment of a portion of debt related to the 5.8 billion Japanese Yen note, repayment of a portion of the Canadian Dollar loan, and repayment of a portion of debt that was acquired, primarily related to the Winterthur acquisition. Proceeds from debt in the first nine months of 2011 primarily relate to issuance of a $1 billion medium term note and an amendment to a Canada loan agreement which increased the principal amount of the loan by 100.5 million Canadian Dollars. Refer to Note 7 for further details on these repayments and proceeds from debt. Refer to Note 2 for further information on the Winterthur acquisition.

Repurchases of common stock are made to support the Company’s stock-based employee compensation plans and for other corporate purposes. In February 2011, 3M’s Board of Directors authorized the repurchase of up to $7.0 billion of 3M’s outstanding common stock, which replaced the Company’s previous repurchase program. This authorization has no pre-established end date. In the first nine months of 2011, the Company purchased $2.207 billion of treasury stock, of which a portion was under the previous authorization, compared to $415 million of treasury stock in the first nine months of 2010. As of September 30, 2011, approximately $5.1 billion of 3M common stock remained available for repurchase under the current authorization. For more information, refer to the table titled “Issuer Purchases of Equity Securities” in Part II, Item 2.

Cash dividends paid to stockholders totaled $1.171 billion in the first nine months of 2011 compared to $1.124 billion in the first nine months of 2010. 3M has paid dividends since 1916. In February 2011, the Board of Directors increased the quarterly dividend on 3M common stock by 4.8 percent to 55 cents per share, equivalent to an annual dividend of $2.20 per share. This marked the 53rd consecutive year of dividend increases.

In addition to the items described below, other cash flows from financing activities may include various other items, such as distributions to or sales of noncontrolling interests, changes in cash overdraft balances, and principal payments for capital leases.

In the first nine months of 2011, as discussed in Note 4, subsequent to acquiring a controlling interest in Winterthur, 3M purchased additional outstanding shares of its Winterthur subsidiary for $50 million, increasing 3M’s ownership interest from approximately 86 percent to approximately 98 percent as of September 30, 2011. These additional purchases are reflected as other financing activities in the statement of cash flows. In addition, during the first nine months of 2011, 3M sold a noncontrolling interest in a newly formed subsidiary for an immaterial amount, which was also classified as other financing activity in the consolidated statement of cash flows.

In the first quarter of 2010, the Company’s majority owned Sumitomo 3M Limited entity (Sumitomo 3M) purchased a portion of its shares held by its noncontrolling interest, Sumitomo Electric Industries, Ltd. (SEI), by paying cash of 5.8 billion Japanese Yen and entering into a note payable to SEI of 17.4 billion Japanese Yen (approximately $63 million and $188 million, respectively, based on March 31, 2010 exchange rates). The cash paid during the first nine months ended September 30, 2010 as a result of the first-quarter 2010 purchase of Sumitomo 3M shares from SEI is classified as other financing activity in the consolidated statement of cash flows.

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Cautionary Note Concerning Factors That May Affect Future Results

This Quarterly Report on Form 10-Q, including “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part I, Item 2, contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. The Company may also make forward-looking statements in other reports filed with the Securities and Exchange Commission, in materials delivered to shareholders and in press releases. In addition, the Company’s representatives may from time to time make oral forward-looking statements.

Forward-looking statements relate to future events and typically address the Company’s expected future business and financial performance. Words such as “plan,” “expect,” “aim,” “believe,” “project,” “target,” “anticipate,” “intend,” “estimate,” “will,” “should,” “could” and other words and terms of similar meaning, typically identify such forward-looking statements. In particular, these include, among others, statements relating to the Company’s

·strategy for growth, future revenues, earnings, cash flow, uses of cash and other measures of financial performance, and market position,

·worldwide economic and capital markets conditions, such as interest rates, foreign currency exchange rates, financial conditions of our suppliers and customers, and natural and other disasters affecting the operations of the Company or our suppliers and customers

·new business opportunities, product development, and future performance or results of current or anticipated products,

·the scope, nature or impact of acquisition, strategic alliance and divestiture activities,

·the outcome of contingencies, such as legal and regulatory proceedings,

·future levels of indebtedness, common stock repurchases and capital spending,

·future availability of and access to credit markets,

·pension and postretirement obligation assumptions and future contributions, asset impairments, tax liabilities, and

·the effects of changes in tax, environmental and other laws and regulations in the United States and other countries in which we operate.

The Company assumes no obligation to update or revise any forward-looking statements.

Forward-looking statements are based on certain assumptions and expectations of future events and trends that are subject to risks and uncertainties. Actual future results and trends may differ materially from historical results or those reflected in any such forward-looking statements depending on a variety of factors. Important information as to these factors can be found in this document, including, among others, “Management’s Discussion and Analysis of Financial Condition and Results of Operations” under the headings of “Overview”, “Financial Condition and Liquidity” and annually in “Critical Accounting Estimates.” Discussion of these factors is incorporated by reference from Part II, Item 1A, “Risk Factors,” of this document, and should be considered an integral part of Part I, Item 2, “Management’s Discussion and Analysis of Financial Condition and Results of Operations.”  For additional information concerning factors that may cause actual results to vary materially from those stated in the forward-looking statements, see our reports on Form 10-K, 10-Q and 8-K filed with the SEC from time to time.

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Item 3. Quantitative and Qualitative Disclosures About Market Risk.

In the context of Item 3, market risk refers to the risk of loss arising from adverse changes in financial and derivative instrument market rates and prices, such as fluctuations in interest rates and foreign currency exchange rates. For a discussion of sensitivity analysis related to these types of market risks, refer to Part II, Item 7A, Quantitative and Qualitative Disclosures About Market Risk, in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K). The Company also discusses risk management in various places throughout this document, including discussions in MD&A concerning Financial Condition and Liquidity and in the Notes to Consolidated Financial Statements (refer to the Marketable Securities, Derivatives and Fair Value Measurements notes).

Item 4.  Controls and Procedures.

a.  The Company carried out an evaluation, under the supervision and with the participation of its management, including the Chief Executive Officer and Chief Financial Officer, of the effectiveness of the design and operation of the Company’s “disclosure controls and procedures” (as defined in the Exchange Act Rule 13a-15(e)) as of the end of the period covered by this report. Based upon that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures are effective.

b.  There was no change in the Company’s internal control over financial reporting that occurred during the Company’s most recently completed fiscal quarter that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

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3M COMPANY

FORM 10-Q

For the Quarterly Period Ended September 30, 2011

PART II.  Other Information

Item 1. Legal Proceedings.

Discussion of legal matters is incorporated by reference from Part I, Item 1, Note 11, “Commitments and Contingencies”, of this document, and should be considered an integral part of Part II, Item 1, “Legal Proceedings”.

Item 1A. Risk Factors.

Provided below is a cautionary discussion of what we believe to be the most important risk factors applicable to the Company. Discussion of these factors is incorporated by reference into and considered an integral part of Part I, Item 2, “Management’s Discussion and Analysis of Financial Conditions and Results of Operations.”

* Results are impacted by the effects of, and changes in, worldwide economic and capital markets conditions. The Company operates in more than 65 countries and derives approximately two-thirds of its revenues from outside the United States. The Company’s business is subject to global competition and may be adversely affected by factors in the United States and other countries that are beyond its control, such as disruptions in financial markets or downturns in economic activity in specific countries or regions, or in the various industries in which the Company operates; social, political or labor conditions in specific countries or regions; natural and other disasters affecting the operations of the Company or its customers; or adverse changes in the availability and cost of capital, interest rates, tax rates, or regulations in the jurisdictions in which the Company operates.

* The Company’s credit ratings are important to 3M’s cost of capital. The major rating agencies routinely evaluate the Company’s credit profile and assign debt ratings to 3M. The Company currently has an AA- credit rating, with a stable outlook, from Standard & Poor’s and an Aa2 credit rating, with a stable outlook, from Moody’s Investors Service. This evaluation is based on a number of factors, which include financial strength, business and financial risk, as well as transparency with rating agencies and timeliness of financial reporting. The Company’s current ratings have served to lower 3M’s borrowing costs and facilitate access to a variety of lenders. Failure to maintain the current ratings level would adversely affect the Company’s cost of funds and could adversely affect liquidity and access to capital markets.

* The Company’s results are affected by competitive conditions and customer preferences. Demand for the Company’s products, which impacts revenue and profit margins, is affected by (i) the development and timing of the introduction of competitive products; (ii) the Company’s response to downward pricing to stay competitive; (iii) changes in customer order patterns, such as changes in the levels of inventory maintained by customers and the timing of customer purchases which may be affected by announced price changes, changes in the Company’s incentive programs, or the customer’s ability to achieve incentive goals; and (iv) changes in customers’ preferences for our products, including the success of products offered by our competitors, and changes in customer designs for their products that can affect the demand for some of the Company’s products.

* Foreign currency exchange rates and fluctuations in those rates may affect the Company’s ability to realize projected growth rates in its sales and earnings. Because the Company’s financial statements are denominated in U.S. dollars and approximately two-thirds of the Company’s revenues are derived from outside the United States, the Company’s results of operations and its ability to realize projected growth rates in sales and earnings could be adversely affected if the U.S. dollar strengthens significantly against foreign currencies.

* The Company’s growth objectives are largely dependent on the timing and market acceptance of its new product offerings, including its ability to continually renew its pipeline of new products and to bring those products to market. This ability may be adversely affected by difficulties or delays in product development, such as the inability to identify viable new products, obtain adequate intellectual property protection, or gain market acceptance of new products. There are no guarantees that new products will prove to be commercially successful.

* The Company’s future results are subject to fluctuations in the costs and availability of purchased components, compounds, raw materials and energy, including oil and natural gas and their derivatives, due to shortages, increased demand, supply interruptions, currency exchange risks, natural disasters and other factors. The Company depends on various components, compounds, raw materials, and energy (including oil and natural gas and their derivatives) supplied by others for the manufacturing of its products. It is possible that any of its supplier relationships could be interrupted due to natural and other disasters and other events, or be terminated in the future. Any sustained interruption in the

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Company’s receipt of adequate supplies could have a material adverse effect on the Company. In addition, while the Company has a process to minimize volatility in component and material pricing, no assurance can be given that the Company will be able to successfully manage price fluctuations or that future price fluctuations or shortages will not have a material adverse effect on the Company.

* Acquisitions, strategic alliances, divestitures, and other unusual events resulting from portfolio management actions and other evolving business strategies, and possible organizational restructuring could affect future results. The Company monitors its business portfolio and organizational structure and has made and may continue to make acquisitions, strategic alliances, divestitures and changes to its organizational structure. With respect to acquisitions, future results will be affected by the Company’s ability to integrate acquired businesses quickly and obtain the anticipated synergies.

* The Company’s future results may be affected if the Company generates fewer productivity improvements than estimated. The Company utilizes various tools, such as Lean Six Sigma, to improve operational efficiency and productivity. There can be no assurance that all of the projected productivity improvements will be realized.

* The Company’s future results may be affected by various legal and regulatory proceedings and legal compliance risks, including those involving product liability, antitrust, environmental, the U.S. Foreign Corrupt Practices Act and other anti-bribery, anti-corruption, or other matters. The outcome of these legal proceedings may differ from the Company’s expectations because the outcomes of litigation, including regulatory matters, are often difficult to reliably predict. Various factors or developments can lead the Company to change current estimates of liabilities and related insurance receivables where applicable, or make such estimates for matters previously not susceptible of reasonable estimates, such as a significant judicial ruling or judgment, a significant settlement, significant regulatory developments or changes in applicable law. A future adverse ruling, settlement or unfavorable development could result in future charges that could have a material adverse effect on the Company’s results of operations or cash flows in any particular period. For a more detailed discussion of the legal proceedings involving the Company and the associated accounting estimates, see the discussion in Note 11 “Commitments and Contingencies” within the Notes to Consolidated Financial Statements.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

(e) Issuer Purchases of Equity Securities

Repurchases of common stock are made to support the Company’s stock-based employee compensation plans and for other corporate purposes. In February 2007, 3M’s Board of Directors authorized a two-year share repurchase of up to $7.0 billion for the period from February 12, 2007 to February 28, 2009. In February 2009, 3M’s Board of Directors extended this share repurchase authorization with no pre-established end date. In February 2011, 3M’s Board of Directors replaced the Company’s existing repurchase program with a new repurchase program. This new program authorizes the repurchase of up to $7.0 billion of 3M’s outstanding common stock, with no pre-established end date.

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Issuer Purchases of Equity

Securities (registered pursuant to

Section 12 of the Exchange Act)

Period	Total Number of Shares Purchased (1)	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs (2)	Maximum Approximate Dollar Value of Shares that May Yet Be Purchased under the Plans or Programs (Millions)
January 1-31, 2011	1,555,879	$	87.76	1,514,800	$	1,610
February 1-28, 2011	3,361,267	$	90.59	3,189,700	$	6,778
March 1-31, 2011	2,573,955	$	91.12	2,467,479	$	6,553
Total January 1-March 31, 2011	7,491,101	$	90.19	7,171,979	$	6,553
April 1-30, 2011	1,774,734	$	94.12	1,670,000	$	6,396
May 1-31, 2011	3,139,104	$	94.18	2,806,000	$	6,132
June 1-30, 2011	2,262,596	$	90.88	2,107,282	$	5,939
Total April 1-June 30, 2011	7,176,434	$	93.13	6,583,282	$	5,939
July 1-31, 2011	1,423,612	$	90.77	1,415,600	$	5,811
August 1-31, 2011	6,947,384	$	80.94	6,947,255	$	5,248
September 1-30, 2011	1,853,400	$	78.60	1,852,612	$	5,103
Total July 1-September 30, 2011	10,224,396	$	81.89	10,215,467	$	5,103
Total January 1-September 30, 2011	24,891,931	$	87.62	23,970,728	$	5,103

(1)The total number of shares purchased includes: (i) shares purchased under the Board’s authorizations described above, and (ii) shares purchased in connection with the exercise of stock options.

(2)The total number of shares purchased as part of publicly announced plans or programs includes shares purchased under the Board’s authorizations described above.

Item 3. Defaults Upon Senior Securities. — No matters require disclosure.

Item 4. Removed and Reserved.

Item 5. Other Information.

Pursuant to Section 1503 of the Dodd-Frank Wall Street Reform and Consumer Protection Act (the “Act”) which became effective August 20, 2010, the Company is required to disclose, in connection with the four mines it operates, certain safety information in its periodic reports filed with the SEC.

During the third quarter of 2011, the Wausau, Wisconsin mine did not receive any citations for violations as defined under Section 1503(a)(1)(A) of the Act, from the Mine Safety and Health Administration (the “Violations”); the Wausau facility did not receive any proposed assessments which are reportable under Section 1503(a)(1)(F) of the Act. The Corona, California mine did not receive any citations for Violations. The Corona facility received proposed assessments of $15,439 which are reportable under Section 1503(a)(1)(F) of the Act. The Little Rock, Arkansas mine did not receive any citations for Violations. The Little Rock facility received proposed assessments of $908 which are reportable under Section 1503(a)(1)(F) of the Act. The Pittsboro, North Carolina mine did not receive any citations for any Violations. The Pittsboro facility received proposed assessments of $616 which are reportable under Section 1503(a)(1)(F) of the Act.

During the third quarter of 2011, the Company did not receive any other citations or orders reportable under Section 1503(a)(1) or have other violations reportable thereunder, had no mining-related fatalities, received no written notices from the Mine Safety and Health Administration reportable under Section 1503(a)(2), and had no pending legal action before the Federal Mine Safety and Health Review Commission.

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Item 6. Exhibits.

Exhibits.  These exhibits are either incorporated by reference into this report or filed herewith with this report. Exhibit numbers 10.1 through 10.46 are management contracts or compensatory plans or arrangements.

Index to Exhibits:

(3)	Articles of Incorporation and bylaws
	(3.1)	Certificate of incorporation, as amended as of May 11, 2007, is incorporated by reference from our Form 8-K dated May 14, 2007.
	(3.2)	Bylaws, as amended as of February 10, 2009, are incorporated by reference from our Form 8-K dated February 12, 2009.
(4)	Instruments defining the rights of security holders, including indentures:
	(4.1)	Indenture, dated as of November 17, 2000, between 3M and The Bank of New York Mellon Trust Company, N.A., as successor trustee, with respect to 3M’s senior debt securities, is incorporated by reference from our Form 8-K dated December 7, 2000.
	(4.2)	First Supplemental Indenture, dated as of July 29, 2011, to Indenture dated as of November 17, 2000, between 3M and The Bank of New York Mellon Trust Company, N.A., as successor trustee, with respect to 3M’s senior debt securities, is incorporated by reference from our Form 10-Q for the quarter ended June 30, 2011.
(10)	Material contracts and management compensation plans and arrangements:
	(10.1)	3M 2008 Long-Term Incentive Plan (including amendments through February 2010) is incorporated by reference from our Form 8-K dated May 12, 2010.
	(10.2)	Form of Agreement for Stock Option Grants to Executive Officers under 3M 2008 Long-Term Incentive Plan is incorporated by reference from our Form 8-K dated May 13, 2008.
	(10.3)	Form of Stock Option Agreement for options granted to Executive Officers under the 3M 2008 Long-Term Incentive Plan, commencing February 9, 2010, is incorporated by reference from our Form 10-K for the year ended December 31, 2009.
	(10.4)	Form of Restricted Stock Unit Agreement for restricted stock units granted to Executive Officers under the 3M Long-Term Incentive Plan, effective February 9, 2010, is incorporated by reference from our Form 10-K for the year ended December 31, 2009.
	(10.5)	Form of 3M 2010 Performance Share Award under the 3M 2008 Long-Term Incentive Plan is incorporated by reference from our Form 8-K dated March 4, 2010.
	(10.6)	Form of Stock Option Agreement for U.S. Employees under 3M 2008 Long-Term Incentive Plan is incorporated by reference from our Form 10-K for the year ended December 31, 2008.
	(10.7)	Form of Restricted Stock Unit Agreement for U.S. Employees under 3M 2008 Long-Term Incentive Plan is incorporated by reference from our Form 10-K for the year ended December 31, 2008.
	(10.8)	Amendment of the 3M 2005 Management Stock Ownership Program and the 3M 2008 Long-term Incentive Plan — transfer of stock options to former spouses, is incorporated by reference from our Form 10-K for the year ended December 31, 2010.
	(10.9)	3M 2005 Management Stock Ownership Program is incorporated by reference from our Proxy Statement for the 2005 Annual Meeting of Stockholders.
	(10.10)	3M 2002 Management Stock Ownership Program is incorporated by reference from our Proxy Statement for the 2002 Annual Meeting of Stockholders.
	(10.11)	3M 1997 Management Stock Ownership Program is incorporated by reference from our Proxy Statement for the 1997 Annual Meeting of Stockholders.
	(10.12)	Amendments of 3M 1997, 2002 and 2005 Management Stock Ownership Programs are incorporated by reference from our Form 8-K dated November 14, 2008.
	(10.13)	Form of award agreement for non-qualified stock options granted under the 2005 Management Stock Ownership Program, is incorporated by reference from our Form 8-K dated May 16, 2005.
	(10.14)	Form of award agreement for non-qualified stock options granted under the 2002 Management Stock Ownership Program, is incorporated by reference from our Form 10-K for the year ended December 31, 2004.
	(10.15)	3M 1997 General Employees’ Stock Purchase Plan, as amended through November 8, 2004, is incorporated by reference from our Form 10-K for the year ended December 31, 2004.
	(10.16)	3M Board resolution dated May 12, 2009, regarding three-year extension of 3M 1997 General Employees’ Stock Purchase Plan is incorporated by reference from our Form 10-Q for the quarter ended June 30, 2009.

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(10.17)	Amendment of the 3M 1997 General Employees Stock Purchase Plan approved on February 9, 2010 is incorporated by reference from our Form 10-K for the year ended December 31, 2009.
(10.18)	3M VIP Excess Plan is incorporated by reference from our Form 8-K dated November 14, 2008.
(10.19)	Amendment of 3M VIP Excess Plan is incorporated by reference from our Form 8-K dated November 24, 2009.
(10.20)	3M VIP (Voluntary Investment Plan) Plus is incorporated by reference from Registration Statement No. 333-73192 on Form S-8, filed on November 13, 2001.
(10.21)	Amendment of 3M VIP Plus is incorporated by reference from our Form 8-K dated November 14, 2008.
(10.22)	3M Deferred Compensation Plan, as amended through February 2008, is incorporated by reference from our Form 8-K dated February 14, 2008.
(10.23)	Amendment of 3M Deferred Compensation Plan is incorporated by reference from our Form 8-K dated November 14, 2008.
(10.24)	3M Deferred Compensation Excess Plan is incorporated by reference from our Form 10-K for the year ended December 31, 2009.
(10.25)	3M Performance Awards Deferred Compensation Plan is incorporated by reference from our Form 10-K for the year ended December 31, 2009.
(10.26)	3M Executive Annual Incentive Plan is incorporated by reference from our Form 8-K dated May 14, 2007.
(10.27)	Form of Agreement for Performance Unit or Share Awards to Executive Officers during 2008 under 3M Performance Unit Plan is incorporated by reference from our Form 8-K dated May 8, 2008.
(10.28)	3M Performance Unit Plan, as amended through February 11, 2007, is incorporated by reference from our Form 8-K dated May 14, 2007.
(10.29)	Amendment of 3M Performance Unit Plan is incorporated by reference from our Form 8-K dated November 14, 2008.
(10.30)	Description of changes to Non-Employee Director Compensation and Stock Ownership Guidelines dated as of August 13, 2007 is incorporated by reference from our Form 10-Q for the quarter ended September 30, 2007.
(10.31)	Description of changes to 3M Compensation Plan for Non-Employee Directors is incorporated by reference from our Form 8-K dated August 8, 2005.
(10.32)	3M Compensation Plan for Non-Employee Directors, as amended, through November 8, 2004, is incorporated by reference from our Form 10-K for the year ended December 31, 2004.
(10.33)	Amendment of 3M Compensation Plan for Non-Employee Directors is incorporated by reference from our Form 8-K dated November 14, 2008.
(10.34)	3M Executive Life Insurance Plan, as amended, is incorporated by reference from our Form 10-K for the year ended December 31, 2003.
(10.35)	Summary of Personal Financial Planning Services for 3M Executives is incorporated by reference from our Form 10-K for the year ended December 31, 2003.
(10.36)	3M policy on reimbursement of incentive payments is incorporated by reference from our Form 10-K for the year ended December 31, 2006.
(10.37)	Amended and Restated 3M Nonqualified Pension Plan I is incorporated by reference from our Form 8-K dated December 23, 2008.
(10.38)	Amended and Restated 3M Nonqualified Pension Plan II is incorporated by reference from our Form 8-K dated December 23, 2008.
(10.39)	3M Nonqualified Pension Plan III is incorporated by reference from our Form 8-K dated November 14, 2008.
(10.40)	Employment agreement dated as of December 6, 2005, between 3M and George W. Buckley is incorporated by reference from our Form 8-K dated December 9, 2005.
(10.41)	Amendment, dated August 14, 2006, to employment agreement between 3M and George W. Buckley is incorporated by reference from our Form 10-Q for the quarter ended September 30, 2006.
(10.42)	Amendment to Employment Agreement between 3M and George W. Buckley is incorporated by reference from our Form 8-K dated December 17, 2008.
(10.43)	Employment agreement dated as of January 23, 2002, between 3M and Patrick D. Campbell is incorporated by reference from our Form 10-K for the year ended December 31, 2001.
(10.44)	Amendment to Employment Agreement between 3M and Patrick D. Campbell is incorporated by reference from our Form 8-K dated November 18, 2008.
(10.45)	Appointment and Compensatory arrangements between 3M and David W. Meline are incorporated by reference from our Form 8-K dated July 23, 2008.
(10.46)	Policy on Reimbursement of Incentive Compensation (effective May 11, 2010) is incorporated by reference from our Form 10-Q dated August 4, 2010.
(10.47)	Five-year credit agreement as of August 5, 2011, is incorporated by reference from our Form 8-K dated August 10, 2011.

70

	(10.48)	Letter of credit agreement as of August 24, 2011 is incorporated by reference from our Form 8-K dated August 30, 2011.
	(10.49)	Registration Rights Agreement as of August 4, 2009, between 3M Company and State Street Bank and Trust Company as Independent Fiduciary of the 3M Employee Retirement Income Plan, is incorporated by reference from our Form 8-K dated August 5, 2009.
Filed herewith:
	(12)	Calculation of ratio of earnings to fixed charges.
	(15)	A letter from the Company’s independent registered public accounting firm regarding unaudited interim consolidated financial statements.
	(31.1)	Certification of the Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350.
	(31.2)	Certification of the Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350.
	(32.1)	Certification of the Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350.
	(32.2)	Certification of the Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section 1350.
	(101)	The following financial information from 3M Company’s Quarterly Report on Form 10-Q for the period ended September 30, 2011, filed with the SEC on November 3, 2011, formatted in Extensible Business Reporting Language (XBRL): (i) the Consolidated Statement of Income for the three-month and nine-month periods ended September 30, 2011 and 2010, (ii) the Consolidated Balance Sheet at September 30, 2011 and December 31, 2010, (iii) the Consolidated Statement of Cash Flows for the nine-month periods ended September 30, 2011 and 2010, and (iv) Notes to Consolidated Financial Statements.

71

SIGNATURES

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.

3M COMPANY

(Registrant)

Date: November 3, 2011

By	/s/ David W. Meline
David W. Meline,
Senior Vice President and Chief Financial Officer
(Mr. Meline is the Principal Financial Officer and has
been duly authorized to sign on behalf of the Registrant.)

72

EX-12

EXHIBIT 12

3M COMPANY AND SUBSIDIARIES

CALCULATION OF RATIO OF EARNINGS TO FIXED CHARGES

(Millions)

	Nine months ended Sept. 30, 2011		Year 2010		Year 2009		Year 2008		Year 2007		Year 2006
EARNINGS
Income before income taxes*	$	4,702	$	5,755	$	4,632	$	5,108	$	6,115	$	5,625
Add:
Interest expense (including amortization of capitalized interest)	156		220		236		231		229		139
Interest component of the ESOP benefit expense	—		—		1		3		5		8
Portion of rent under operating leases representative of the interest component	63		81		76		77		70		70
Less:
Equity in undistributed income of 20-50% owned companies	3		4		4		6		5		6
TOTAL EARNINGS AVAILABLE FOR FIXED CHARGES	$	4,918	$	6,052	$	4,941	$	5,413	$	6,414	$	5,836
FIXED CHARGES
Interest on debt (including capitalized interest)	155		218		246		243		235		138
Interest component of the ESOP benefit expense	—		—		1		3		5		8
Portion of rent under operating leases representative of the interest component	63		81		76		77		70		70
TOTAL FIXED CHARGES	$	218	$	299	$	323	$	323	$	310	$	216
RATIO OF EARNINGS TO FIXED CHARGES	22.6		20.2		15.3		16.8		20.7		27.0

*2009 results included net pre-tax charges of $194 million related to restructuring actions partially offset by a gain on sale of real estate. 2008 results included net pre-tax charges of $269 million, with charges related to restructuring actions, exit activities and a loss on sale of businesses partially offset by a gain on sale of real estate. 2007 results included pre-tax gains of $681 million, with net benefits from gains related to the sale of businesses and a gain on sale of real estate, which were partially offset by increases in environmental liabilities, restructuring actions, and exit activities. 2006 results included pre-tax gains of $523 million, with net benefits from gains related to the sale of certain portions of 3M’s branded pharmaceuticals business partially offset by restructuring actions, acquired in-process research and development expenses, settlement costs of a previously disclosed antitrust class action, and environmental obligations related to the pharmaceuticals business.

EX-15

EXHIBIT 15

Securities and Exchange Commission

100 F Street, NE

Washington, D.C.  20549

Commissioners:

We are aware that our report dated November 3, 2011 on our review of interim consolidated financial information of 3M Company and its subsidiaries for the three-month and nine-month periods ended September 30, 2011 and 2010 and included in the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2011 is incorporated by reference in the Company’s registration statements on Form S-8 (Registration Nos. 333-30689, 333-30691, 333-44760, 333-73192, 333-101727, 333-101751, 333-109282, 333-128251, 333-130150, 333-151039, 333-156626, 333-156627, 333-166908, and 333-174562) and Form S-3 (Registration Nos. 33-48089, 333-42660, 333-109211, 333-157374, and 333-176082).

/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP

Minneapolis, Minnesota

November 3, 2011

EX-31.1

EXHIBIT 31.1

SARBANES-OXLEY SECTION 302 CERTIFICATION

I, George W. Buckley, certify that:

1.I have reviewed this quarterly report on Form 10-Q of 3M Company;

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

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

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

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

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

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

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

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

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

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

/s/ George W. Buckley

George W. Buckley

Chief Executive Officer

November 3, 2011

EX-31.2

EXHIBIT 31.2

SARBANES-OXLEY SECTION 302 CERTIFICATION

I, David W. Meline, certify that:

1.I have reviewed this quarterly report on Form 10-Q of 3M Company;

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

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

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

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

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

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

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

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

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

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

/s/ David W. Meline

David W. Meline

Chief Financial Officer

November 3, 2011

EX-32.1

EXHIBIT 32.1

SARBANES-OXLEY SECTION 906 CERTIFICATION

In connection with the Quarterly Report of 3M Company (the “Company”) on Form 10-Q for the period ended September 30, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, George W. Buckley, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ George W. Buckley

George W. Buckley

Chief Executive Officer

November 3, 2011

EX-32.2

EXHIBIT 32.2

SARBANES-OXLEY SECTION 906 CERTIFICATION

In connection with the Quarterly Report of 3M Company (the “Company”) on Form 10-Q for the period ended September 30, 2011 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, David W. Meline, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to my knowledge:

1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ David W. Meline

David W. Meline

Chief Financial Officer

November 3, 2011

XML

Fair Value Measurements (Details) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - assets	$ 114	$ 77
U.S. government agency securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	389	309
U.S. government agency securities | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	389	309
Foreign government agency securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	3	55
Foreign government agency securities | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	3	55
Corporate debt securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	495	472
Corporate debt securities | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	495	472
Commercial paper | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	138	55
Commercial paper | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	138	55
Certificates of deposit/time deposits | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	117	29
Certificates of deposit/time deposits | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	117	29
U.S. treasury securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	34	99
U.S. treasury securities | Fair value on a recurring basis | Level 1
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	34	99
U.S. municipal securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	9	23
U.S. municipal securities | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	9	23
Asset-backed securities Automobile loan related | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	469	397
Asset-backed securities Automobile loan related | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	469	397
Asset-backed securities Credit card related | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	200	149
Asset-backed securities Credit card related | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	200	149
Asset-backed securities Equipment lease related | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	58	38
Asset-backed securities Equipment lease related | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	58	38
Asset-backed securities Other asset-backed securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	10	8
Asset-backed securities Other asset-backed securities | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	10	8
Auction rate securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	5	7
Auction rate securities | Fair value on a recurring basis | Level 3
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	5	7
Other securities | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	2
Other securities | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	2
Foreign currency forward/option contracts | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - assets	83	38
Derivative instruments - liabilities	42	82
Foreign currency forward/option contracts | Fair value on a recurring basis | Level 1
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - assets	76	36
Derivative instruments - liabilities	42	82
Foreign currency forward/option contracts | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - assets	7	2
Commodity price swap contracts | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - liabilities	4	5
Commodity price swap contracts | Fair value on a recurring basis | Level 1
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - liabilities	4	5
Interest rate swap contracts | Fair value on a recurring basis | Fair Value
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - assets	31	39
Interest rate swap contracts | Fair value on a recurring basis | Level 2
Assets and Liabilities Measured on Recurring Basis
Derivative instruments - assets	31	39
Fair value on a recurring basis | Fair Value | Investments
Assets and Liabilities Measured on Recurring Basis
Investments	5	21
Fair value on a recurring basis | Level 1 | Investments
Assets and Liabilities Measured on Recurring Basis
Investments	5	21
Asset-backed securities:
Assets and Liabilities Measured on Recurring Basis
Available-for-sale marketable securities	$ 737

XML

Consolidated Balance Sheet (Parenthetical) (USD $)	Sep. 30, 2011	Dec. 31, 2010
Consolidated Balance Sheet
Common stock, par value per share (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares issued (in shares)	944,033,056	944,033,056
Treasury stock (in shares)	243,188,375	232,055,448

XML

Consolidated Statement of Cash Flows (USD $) In Millions	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash Flows from Operating Activities
Net income including noncontrolling interest	$ 3,383	$ 3,220
Adjustments to reconcile net income including noncontrolling interest to net cash provided by operating activities
Depreciation and amortization	919	837
Company pension and postretirement contributions	(373)	(431)
Company pension and postretirement expense	400	243
Stock-based compensation expense	210	228
Deferred income taxes	(37)	20
Excess tax benefits from stock-based compensation	(52)	(43)
Changes in assets and liabilities
Accounts receivable	(557)	(529)
Inventories	(364)	(521)
Accounts payable	(30)	173
Accrued income taxes (current and long-term)	212	160
Product and other insurance receivables and claims	(45)	44
Other - net	(120)	142
Net cash provided by operating activities	3,546	3,543
Cash Flows from Investing Activities
Purchases of property, plant and equipment (PP&E)	(862)	(565)
Proceeds from sale of PP&E and other assets	12	7
Acquisitions, net of cash acquired	(531)	(48)
Purchases of marketable securities and investments	(2,592)	(2,947)
Proceeds from sale of marketable securities and investments	1,042	1,425
Proceeds from maturities of marketable securities	1,353	1,254
Other investing	(6)	(3)
Net cash used in investing activities	(1,584)	(877)
Cash Flows from Financing Activities
Change in short-term debt - net	(13)	(31)
Repayment of debt (maturities greater than 90 days)	(474)	(135)
Proceeds from debt (maturities greater than 90 days)	1,108	9
Purchases of treasury stock	(2,207)	(415)
Reissuances of treasury stock	865	505
Dividends paid to shareholders	(1,171)	(1,124)
Excess tax benefits from stock-based compensation	52	43
Other - net	(58)	(77)
Net cash used in financing activities	(1,898)	(1,225)
Effect of exchange rate changes on cash and cash equivalents	(65)	(15)
Net increase (decrease) in cash and cash equivalents	(1)	1,426
Cash and cash equivalents at beginning of year	3,377	3,040
Cash and cash equivalents at end of period	$ 3,376	$ 4,466

XML

Commitments and Contingencies (Details) (USD $)	9 Months Ended		9 Months Ended		9 Months Ended				9 Months Ended					1 Months Ended	9 Months Ended		9 Months Ended
	Sep. 30, 2011 Respirator Mask/Asbestos Litigation Claim Claimant	Dec. 31, 2010 Respirator Mask/Asbestos Litigation Claimant	Sep. 30, 2011 Respirator Mask/Asbestos Litigation - State of West Virginia	Sep. 30, 2011 Respirator Mask/Asbestos litigation - Excluding Aearo Technologies	Sep. 30, 2011 Insurance Disclaimer Action Insurer	Sep. 30, 2011 Respirator Mask/Asbestos Litigation - Aearo Technologies	Sep. 30, 2011 Environmental Matters - Remediation Y	Dec. 31, 2010 Environmental Matters - Remediation	Sep. 30, 2011 Environmental Matters - Regulatory Activities Y PFC	Sep. 30, 2011 Environmental Matters - Regulatory Activities Alabama Defendant DisposalSite Y	Sep. 30, 2011 Environmental Matters - Regulatory Activities Minnesota DisposalSite	Sep. 30, 2011 Environmental Matters - Litigation Morgan County, Alabama Claimant	Sep. 30, 2011 Environmental Matters - Litigation Lake Elmo, Minnesota	Jun. 30, 2009 Environmental Matters - Litigation New Jersey Defendant DisposalSite	Sep. 30, 2011 Environmental Matters - Other Environmental Liabilities Y	Dec. 31, 2010 Environmental Matters - Other Environmental Liabilities	Sep. 30, 2011 Environmental Matters - Other Environmental Liabilities Minnesota DisposalSite
Loss contingencies
Accrued loss contingency reserve	$ 105,000,000	$ 126,000,000				$ 30,000,000	$ 29,000,000	$ 24,000,000							$ 80,000,000	$ 90,000,000
Insurance receivables	119,000,000	122,000,000			14,000,000		15,000,000	15,000,000
Number of individual claimants	2,190	2,148
Number of total claims settled and taken to trial	9
Subset of the number of total claims settled and tried to verdict	7
Number of total claims settled and tried to verdict	8
Number of total claims dismissed and being appealed	1
Number of additional defendants			2
Liability for asbestos and environmental claims gross-excluding Aearo Inc.				75,000,000
Number of insurers who filed a declaratory judgment action against the company					2
Number of the entity's insurers named in the action, low end of range					60
Annual fee paid to Cabot to retain responsibility and liability for products manufactured before July 11, 1995						400,000
Number of PFCs the EPA has proposed to have public water suppliers monitor									6
Number of years after phase-out decision in May 2000 that the Company stopped manufacturing and using vast majority of perfluorooctanyl compounds									2
Number of landfills to be tested by the entity pursuant to a Memorandum of Understanding with the EPA										3
Wastewater treatment plant sludge containing PFCs surrounding Decatur facility (in years)										20
Number of sites where remediation work will continue into 2011											3
Total number of named plaintiffs, second purported class action												3
Number of subsidiaries of Toray Industries, Inc. allegedly involved in wastewater treatment plant sludge containing PFCs environmental litigation										2
Claim asserted for alleged contamination, low end													50,000
Lower end of range of number of companies served with a complaint														250
Number of companies, in addition to Maxus Energy, Tierra Solutions and Occidental Chemical involved in an enforcement action														2
Total cost of clean-up proposed by the EPA, of which the Company believes its applicable share, if any, is likely to be a fraction of one percent														$ 1,000,000,000
Number of commercial waste disposal facilities used														2
Number of years remediation payments expected to be paid for applicable sites, high end of range							20								5
Number of former disposal sites with PFC present in soil and groundwater in Washington County Minnesota																	2

XML

Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2011

Marketable Securities

Schedule of Marketable Securities

(Millions)	Sept. 30, 2011		Dec. 31, 2010
U.S. government agency securities	$	257	$	246
Foreign government agency securities	—		52
Corporate debt securities	389		280
Commercial paper	138		55
Certificates of deposit/time deposits	117		29
U.S. treasury securities	—		55
U.S. municipal securities	6		20
Asset-backed securities:
Automobile loan related	388		253
Credit card related	144		79
Equipment lease related	35		24
Other	10		8
Asset-backed securities total	577		364
Other securities	2		—
Current marketable securities	$	1,486	$	1,101
U.S. government agency securities	$	132	$	63
Foreign government agency securities	3		3
Corporate debt securities	106		192
U.S. treasury securities	34		44
U.S. municipal securities	3		3
Asset-backed securities:
Automobile loan related	81		144
Credit card related	56		70
Equipment lease related	23		14
Asset-backed securities total	160		228
Auction rate securities	5		7
Non-current marketable securities	$	443	$	540
Total marketable securities	$	1,929	$	1,641

Marketable securities by contractual maturity

(Millions)	Sept. 30, 2011
Due in one year or less	$	1,013
Due after one year through three years	805
Due after three years through five years	96
Due after five years	15
Total marketable securities	$	1,929

XML

Consolidated Statement of Income (USD $) In Millions, except Per Share data	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Net sales	$ 7,531	$ 6,874	$ 22,522	$ 19,953
Operating expenses
Cost of sales	4,027	3,583	11,869	10,256
Selling, general and administrative expenses	1,534	1,361	4,648	4,034
Research, development and related expenses	389	354	1,191	1,046
Total operating expenses	5,950	5,298	17,708	15,336
Operating income	1,581	1,576	4,814	4,617
Interest expense and income
Interest expense	48	51	141	151
Interest income	(10)	(11)	(29)	(27)
Total interest expense (income)	38	40	112	124
Income before income taxes	1,543	1,536	4,702	4,493
Provision for income taxes	440	411	1,319	1,273
Net income including noncontrolling interest	1,103	1,125	3,383	3,220
Less: Net income attributable to noncontrolling interest	15	19	54	63
Net income attributable to 3M	$ 1,088	$ 1,106	$ 3,329	$ 3,157
Weighted average 3M common shares outstanding - basic (in shares)	707.7	714.0	710.9	713.4
Earnings per share attributable to 3M common shareholders - basic (in dollars per share)	$ 1.54	$ 1.55	$ 4.68	$ 4.42
Weighted average 3M common shares outstanding - diluted (in shares)	715.5	725.2	722.8	724.8
Earnings per share attributable to 3M common shareholders - diluted (in dollars per share)	$ 1.52	$ 1.53	$ 4.61	$ 4.36
Cash dividends paid per 3M common share (in dollars per share)	$ 0.55	$ 0.525	$ 1.65	$ 1.575

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Derivatives (Details 4) (Derivatives not designated as hedging instruments, USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Gains and losses related to derivative instruments not designated as hedging instruments
Gross notional amount of forward, option and swap contracts not designated as hedging instruments	$ 1,100,000,000		$ 1,100,000,000
Gain (Loss) on Derivative Recognized in income	38,000,000	(45,000,000)	22,000,000	(30,000,000)
Foreign currency forward/option contracts | Cost of Sales
Gains and losses related to derivative instruments not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	32,000,000	(38,000,000)	4,000,000	(12,000,000)
Foreign currency forward contracts | Interest expense
Gains and losses related to derivative instruments not designated as hedging instruments
Gain (Loss) on Derivative Recognized in income	$ 6,000,000	$ (7,000,000)	$ 18,000,000	$ (18,000,000)

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Fair Value Measurements (Tables)

9 Months Ended

Sep. 30, 2011

Fair Value Measurements

Fair Value, Assets and Liabilities Measured on Recurring Basis

	Fair Value
(Millions)	at Sept. 30,		Fair Value Measurements Using Inputs Considered as
Description	2011		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
U.S. government agency securities	$	389	$	—	$	389	$	—
Foreign government agency securities	3		—		3		—
Corporate debt securities	495		—		495		—
Certificates of deposit/time deposits	117		—		117		—
Commercial paper	138		—		138		—
Asset-backed securities:
Automobile loan related	469		—		469		—
Credit card related	200		—		200		—
Equipment lease related	58		—		58		—
Other	10		—		10		—
U.S. treasury securities	34		34		—		—
U.S. municipal securities	9		—		9		—
Auction rate securities	5		—		—		5
Other securities	2		—		2		—
Investments	5		5		—		—
Derivative instruments — assets:
Foreign currency forward/option contracts	83		76		7		—
Interest rate swap contracts	31		—		31		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	42		42		—		—
Commodity price swap contracts	4		4		—		—

	Fair Value
(Millions)	at Dec. 31,		Fair Value Measurements Using Inputs Considered as
Description	2010		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
U.S. government agency securities	$	309	$	—	$	309	$	—
Foreign government agency securities	55		—		55		—
Corporate debt securities	472		—		472		—
Certificates of deposit/time deposits	29		—		29		—
Commercial paper	55		—		55		—
Asset-backed securities:
Automobile loan related	397		—		397		—
Credit card related	149		—		149		—
Equipment lease related	38		—		38		—
Other	8		—		8		—
U.S. treasury securities	99		99		—		—
U.S. municipal securities	23		—		23		—
Auction rate securities	7		—		—		7
Investments	21		21		—		—
Derivative instruments — assets:
Foreign currency forward/option contracts	38		36		2		—
Interest rate swap contracts	39		—		39		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	82		82		—		—
Commodity price swap contracts	5		5		—		—

Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation

(Millions)	Three months endedSeptember 30,						Nine months endedSeptember 30,
Marketable securities — auction rate securities only	2011			2010			2011			2010
Beginning balance	$	8		$	7		$	7		$	5
Total gains or losses:
Included in earnings	—			—			—			—
Included in other comprehensive income	(3		)	(1		)	(2		)	1
Purchases, issuances, and settlements	—			—			—			—
Transfers in and/or out of Level 3	—			—			—			—
Ending balance (September 30)	5			6			5			6
Additional losses included in earnings due to reclassifications from other comprehensive income for:
Securities sold during the period ended September 30	—			—			—			—
Securities still held at September 30	—			—			—			—

Fair Value of Financial Instruments by Balance Sheet Grouping

	September 30, 2011				Dec. 31, 2010
(Millions)	CarryingAmount		FairValue		CarryingAmount		FairValue
Long-term debt, excluding current portion	$	4,955	$	5,305	$	4,183	$	4,466

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Derivatives (Details 3) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		1 Months Ended	12 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2011 Foreign Currency Denominated Debt Net Investment Hedges USD ($)	Sep. 30, 2010 Foreign Currency Denominated Debt Net Investment Hedges USD ($)	Sep. 30, 2011 Foreign Currency Denominated Debt Net Investment Hedges USD ($)	Sep. 30, 2010 Foreign Currency Denominated Debt Net Investment Hedges USD ($)	Jul. 31, 2007 Net Investment Hedges EUR (€) Y	Dec. 31, 2007 Net Investment Hedges EUR (€) Y	Sep. 30, 2011 Foreign Currency Denominated Debt USD ($)	Sep. 30, 2010 Foreign Currency Denominated Debt USD ($)	Sep. 30, 2011 Foreign Currency Denominated Debt USD ($)	Sep. 30, 2010 Foreign Currency Denominated Debt USD ($)
Net investment hedges
Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective portion of Derivative	$ 85	$ (148)	$ (35)	$ 77			$ 85	$ (148)	$ (35)	$ 77
Term of debt instrument (in years)					7	7
Face amount					€ 750.0	€ 275.0

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Pension and Postretirement Benefit Plans

9 Months Ended

Sep. 30, 2011

Pension and Postretirement Benefit Plans

Pension and Postretirement Benefit Plans

NOTE 8.  Pension and Postretirement Benefit Plans

Components of net periodic benefit cost and other supplemental information for the three-month and nine-month periods ended September 30 follow:

Benefit Plan Information

	Three months ended September 30,
	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Net periodic benefit cost (benefit)
Service cost	$	51		$	50		$	27		$	28		$	16		$	13
Interest cost	157			160			62			62			23			22
Expected return on plan assets	(231		)	(233		)	(70		)	(71		)	(20		)	(20		)
Amortization of transition (asset) obligation	—			—			—			—			—			—
Amortization of prior service cost (benefit)	2			4			(3		)	(1		)	(18		)	(23		)
Amortization of net actuarial (gain) loss	83			55			28			21			25			21
Net periodic benefit cost (benefit)	$	62		$	36		$	44		$	39		$	26		$	13
Settlements, curtailments, special termination benefits and other	—			—			—			—			—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	62		$	36		$	44		$	39		$	26		$	13

	Nine months ended September 30,
	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Net periodic benefit cost (benefit)
Service cost	$	154		$	151		$	83		$	83		$	46		$	41
Interest cost	470			479			186			187			69			66
Expected return on plan assets	(695		)	(697		)	(209		)	(214		)	(59		)	(62		)
Amortization of transition (asset) obligation	—			—			—			1			—			—
Amortization of prior service cost (benefit)	8			10			(10		)	(3		)	(54		)	(70		)
Amortization of net actuarial (gain) loss	250			165			84			64			77			64
Net periodic benefit cost (benefit)	$	187		$	108		$	134		$	118		$	79		$	39
Settlements, curtailments, special termination benefits and other	—			—			—			(22		)	—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	187		$	108		$	134		$	96		$	79		$	39

For the nine months ended September 30, 2011, contributions totaling $310 million were made to the Company’s U.S. and international pension plans and $63 million to its postretirement plans. For total year 2011, the Company plans to contribute in the range of $500 million to $600 million to its U.S. and international pension and postretirement plans. The Company does not have a required minimum pension contribution obligation for its U.S. plans in 2011. Therefore, the amount of the anticipated discretionary pension contribution could vary significantly depending on the U.S. plans’ funded status and the anticipated tax deductibility of the contribution. Future contributions will also depend on market conditions, interest rates and other factors. 3M’s annual measurement date for pension and postretirement assets and liabilities is December 31 each year, which is also the date used for the related annual measurement assumptions.

In June 2010, 3M’s Brazilian subsidiary received approval from the government in Brazil to freeze its defined benefit pension plan. Effective March 31, 2010, participants in this subsidiary’s pension plan no longer accrue additional pension benefits. As a result, the Company recorded a $22 million curtailment gain in the second quarter of 2010.

3M was informed during the first quarter of 2009 that the general partners of WG Trading Company, in which 3M’s benefit plans hold limited partnership interests, are the subject of a criminal investigation as well as civil proceedings by the SEC and CFTC (Commodity Futures Trading Commission). In March 2011, over the objections of 3M and six other limited partners of WG Trading Company, the district court judge ruled in favor of the court appointed receiver’s proposed distribution plan. In April 2011, the 3M benefit plans received their share under the court-ordered distribution plan. 3M and six other limited partners of WG Trading Company have appealed the court’s order to the United States Court of Appeals for the Second Circuit. The benefit plan trustee holdings of WG Trading Company interests were adjusted to reflect the decreased estimated fair market value, inclusive of estimated insurance proceeds, as of the annual measurement dates. The Company has insurance that it believes, based on what is currently known, will result in the recovery of a portion of the decrease in original asset value. As of the 2010 measurement date these holdings represented less than one percent of 3M’s fair value of total plan assets. 3M currently believes that the resolution of these events will not have a material adverse effect on the consolidated financial position of the Company.

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Commitments and Contingencies (Tables)

9 Months Ended

Sep. 30, 2011

Commitments and Contingencies

Accrued Liabilities and Insurance Receivables Related to Legal Proceedings

Liability and Receivable Balances	Sept. 30,		Dec. 31,
(Millions)	2011		2010
Respirator mask/asbestos liabilities	$	105	$	126
Respirator mask/asbestos insurance receivables	119		122
Environmental remediation liabilities	$	29	$	24
Environmental remediation insurance receivables	15		15
Other environmental liabilities	$	80	$	90

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Long-Term Debt and Short-Term Borrowings (Details)		3 Months Ended			3 Months Ended					3 Months Ended	1 Months Ended		3 Months Ended		3 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2011 Floating rate note payable in Canadian dollar due 2012 CAD	Mar. 31, 2011 Floating rate note payable in Canadian dollar due 2012 CAD	Dec. 31, 2010 Floating rate note payable in Canadian dollar due 2012 CAD Payment	Mar. 31, 2010 Floating rate note payable in Yen due 2011 JPY (¥)	Sep. 30, 2011 Floating rate note payable in Yen due 2011 Payment	Mar. 31, 2011 Floating rate note payable in Yen due 2011 Payment	Sep. 30, 2010 Floating rate note payable in Yen due 2011 Payment	Mar. 31, 2010 Floating rate note payable in Yen due 2011 USD ($) Payment	Sep. 30, 2011 Fixed rate Convertible notes due 2032 USD ($)	Aug. 31, 2011 Five-year credit facility agreement USD ($) Y	Sep. 30, 2011 Five-year credit facility agreement USD ($)	Sep. 30, 2011 Floating rate Medium-term note due November 2011 USD ($)	Sep. 30, 2011 Five-year fixed rate notes USD ($)	Sep. 30, 2011 One-year credit facility agreement with HSBC Bank USA USD ($) Y	Sep. 30, 2011 Other credit facility agreements USD ($)
Short-Term Borrowings
Amount of short-term lines of credit and credit facilities utilized in connection with normal business activities															$ 121,000,000	$ 102,000,000
Maximum borrowing capacity												2,000,000,000			200,000,000
Term of credit facility (in years)											5				1
Long-Term Debt
Principal amount			201,000,000	100,500,000	17,400,000,000				188,000,000					1,000,000,000
Interest rate														1.375%
Carrying amount of debt		150,750,000
Maturities of long-term debt
Payment terms, equal installment amounts					5,800,000,000
Number of installment payments made						1	1	1
Number of equal installment payments									3
Number of equal installment payments due under previous loan agreement				4
Interest rate, reference rate					three-month Tokyo Interbank Offered Rate
Interest rate, amount added to reference rate (in basis points)									0.40%
Future repayment of debt													800,000,000
Repayment of debt		50,250,000								227,000,000
Portion of repayment of debt classified as cash flows from operating activies										24,000,000
Medium-term notes program established in connection with a prior "well-known seasoned issuer" shelf registration	3,000,000,000
Current borrowing capacity											1,500,000,000
Term of credit facility (in years)											5				1
Maximum borrowing capacity that has current restrictions												$ 500,000,000
Required EBITDA to Interest Ratio												3.0
Actual EBITDA to Interest Ratio												38

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Supplemental Equity and Comprehensive Income Information (Details 5) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Mar. 31, 2011	Sep. 30, 2011
Business Acquisitions Information
Cash paid for purchase and sale of subsidiary shares - net		$ 42
Winterthur Technologie AG
Business Acquisitions Information
Percentage of subsidiary share's owned by entity on the business acquisition date (as a percent)	86.00%
Percentage of subsidiary share's owned by entity as of latest balance sheet date (as a percent)		98.00%
Cash paid for purchase and sale of subsidiary shares - net		$ 50

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Derivatives (Tables)

9 Months Ended

Sep. 30, 2011

Derivatives

Gain (loss) on derivative instruments designated as cash flow hedges

Three months ended September 30, 2011 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	49		Cost of sales	$	(41	)	Cost of sales	$	—
Foreign currency forward contracts	(56		)	Interest expense	(56		)	Interest expense	—
Commodity price swap contracts	2			Cost of sales	—			Cost of sales	—
Interest rate swap contracts	(7		)	Interest expense	—			Interest expense	—
Total	$	(12	)		$	(97	)		$	—

Nine months ended September 30, 2011 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(12	)	Cost of sales	$	(75	)	Cost of sales	$	—
Foreign currency forward contracts	(55		)	Interest expense	(54		)	Interest expense	—
Commodity price swap contracts	—			Cost of sales	(4		)	Cost of sales	—
Interest rate swap contracts	(7		)	Interest expense	—			Interest expense	—
Total	$	(74	)		$	(133	)		$	—

Three months ended September 30, 2010 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(76	)	Cost of sales	$	5		Cost of sales	$	—
Foreign currency forward contracts	108			Interest expense	108			Interest expense	—
Commodity price swap contracts	(6		)	Cost of sales	(3		)	Cost of sales	—
Total	$	26			$	110			$	—

Nine months ended September 30, 2010 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(25	)	Cost of sales	$	(48	)	Cost of sales	$	—
Foreign currency forward contracts	41			Interest expense	41			Interest expense	—
Commodity price swap contracts	(13		)	Cost of sales	(6		)	Cost of sales	—
Total	$	3			$	(13	)

Gain (loss) on derivative instruments designated as fair value hedges

Three months ended September 30, 2011 (Millions)	Gain (Loss) on Derivative Recognized in Income			Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount		Location	Amount
Interest rate swap contracts	Interest expense	$	1	Interest expense	$	(1	)
Total		$	1		$	(1	)

Nine months ended September 30, 2011 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(7	)	Interest expense	$	7
Total		$	(7	)		$	7

Three months ended September 30, 2010 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(16	)	Interest expense	$	16
Total		$	(16	)		$	16

Nine months ended September 30, 2010 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(6	)	Interest expense	$	6
Total		$	(6	)		$	6

Gain (loss) on derivative and non-derivative instruments designated as net investment hedges

Three months ended September 30, 2011 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument		Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount		Location	Amount
Foreign currency denominated debt	$	85	N/A	$	—
Total	$	85		$	—

Nine months ended September 30, 2011 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument			Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in  Income
Net Investment Hedging Relationships	Amount			Location	Amount
Foreign currency denominated debt	$	(35	)	N/A	$	—
Total	$	(35	)		$	—

Three months ended September 30, 2010 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument			Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount			Location	Amount
Foreign currency denominated debt	$	(148	)	N/A	$	—
Total	$	(148	)		$	—

Nine months ended September 30, 2010 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument		Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount		Location	Amount
Foreign currency denominated debt	$	77	N/A	$	—
Total	$	77		$	—

Gain (loss) on derivative instruments not designated as hedging instruments

(Millions)	Three months ended Sept. 30, 2011 Gain (Loss) on Derivative Recognized in Income			Nine months ended Sept. 30, 2011 Gain (Loss) on Derivative Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount		Location	Amount
Foreign currency forward/option contracts	Cost of sales	$	32	Cost of sales	$	4
Foreign currency forward contracts	Interest expense	6		Interest expense	18
Total		$	38		$	22

(Millions)	Three months ended Sept. 30, 2010 Gain (Loss) on Derivative Recognized in Income				Nine months ended Sept. 30, 2010 Gain (Loss) on Derivative Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount			Location	Amount
Foreign currency forward/option contracts	Cost of sales	$	(38	)	Cost of sales	$	(12	)
Foreign currency forward contracts	Interest expense	(7		)	Interest expense	(18		)
Total		$	(45	)		$	(30	)

Location and Fair Value of Derivative Instruments

September 30, 2011 (Millions)	Assets			Liabilities
Fair Value of Derivative Instruments	Location	Amount		Location	Amount
Derivatives designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	65	Other current liabilities	$	31
Commodity price swap contracts	Other current assets	—		Other current liabilities	4
Interest rate swap contracts	Other assets	31		Other liabilities	—
Total derivatives designated as hedging instruments		$	96		$	35
Derivatives not designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	18	Other current liabilities	$	11
Total derivatives not designated as hedging instruments		$	18		$	11
Total derivative instruments		$	114		$	46

December 31, 2010 (Millions)	Assets			Liabilities
Fair Value of Derivative Instruments	Location	Amount		Location	Amount
Derivatives designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	26	Other current liabilities	$	48
Commodity price swap contracts	Other current assets	—		Other current liabilities	5
Interest rate swap contracts	Other assets	39		Other liabilities	—
Total derivatives designated as hedging instruments		$	65		$	53
Derivatives not designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	12	Other current liabilities	$	34
Total derivatives not designated as hedging instruments		$	12		$	34
Total derivative instruments		$	77		$	87

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Business Segments

9 Months Ended

Sep. 30, 2011

Business Segments

Business Segments

NOTE 13. Business Segments

Effective in the first quarter of 2011, 3M made certain product moves between its business segments in its continuing effort to drive growth by aligning businesses around markets and customers. There were no changes impacting business segments related to product moves for the Display and Graphics segment or the Consumer and Office segment. The product moves between business segments are summarized as follows:

· Certain pressure sensitive adhesives products within the Industrial Adhesives and Tapes Division and shock absorption and vibration dampening products used in electronics within the Aerospace and Aircraft Maintenance Department (both within the Industrial and Transportation business segment) were transferred to the Electronic Markets Materials Division (part of the Electro and Communications business segment). In addition, certain medical respirator products within the Infection Prevention Division (part of the Health Care business segment) were transferred to the Occupational Health and Environmental Safety Division (within the Safety, Security and Protection Services business segment). The preceding product moves resulted in decreases in net sales for the total year 2010 of $152 million in the Industrial and Transportation business segment and $8 million in the Health Care business segment. These decreases were offset by increases in net sales for the total year 2010 of $121 million for the Electro and Communications business segment and $8 million for the Safety, Security and Protection Services business segment along with a $31 million change in the elimination of dual credit sales and corporate and unallocated.

3M’s businesses are organized, managed and internally grouped into segments based on differences in products, technologies and services. 3M continues to manage its operations in six operating business segments: Industrial and Transportation; Health Care; Display and Graphics; Consumer and Office; Safety, Security and Protection Services; and Electro and Communications. 3M’s six business segments bring together common or related 3M technologies, enhancing the development of innovative products and services and providing for efficient sharing of business resources. These segments have worldwide responsibility for virtually all 3M product lines. 3M is not dependent on any single product/service or market. Transactions among reportable segments are recorded at cost. 3M is an integrated enterprise characterized by substantial intersegment cooperation, cost allocations and inventory transfers. Therefore, management does not represent that these segments, if operated independently, would report the operating income information shown. The difference between operating income and pre-tax income relates to interest income and interest expense, which are not allocated to business segments.

The financial information presented herein reflects the impact of all of the preceding segment structure changes for all periods presented.

Business Segment Information	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Net Sales
Industrial and Transportation	$	2,580		$	2,171		$	7,671		$	6,328
Health Care	1,246			1,092			3,770			3,316
Display and Graphics	935			1,065			2,851			2,981
Consumer and Office	1,096			1,026			3,134			2,892
Safety, Security and Protection Services	954			811			2,894			2,468
Electro and Communications	838			803			2,538			2,254
Corporate and Unallocated	1			4			9			12
Elimination of Dual Credit	(119		)	(98		)	(345		)	(298		)
Total Company	$	7,531		$	6,874		$	22,522		$	19,953
Operating Income
Industrial and Transportation	$	525		$	434		$	1,585		$	1,340
Health Care	367			325			1,100			1,015
Display and Graphics	179			282			631			802
Consumer and Office	244			235			661			665
Safety, Security and Protection Services	202			164			643			544
Electro and Communications	181			183			559			506
Corporate and Unallocated	(91		)	(26		)	(289		)	(190		)
Elimination of Dual Credit	(26		)	(21		)	(76		)	(65		)
Total Company	$	1,581		$	1,576		$	4,814		$	4,617

Corporate and unallocated operating income includes a variety of miscellaneous items, such as corporate investment gains and losses, certain derivative gains and losses, insurance-related gains and losses, certain litigation and environmental expenses, corporate restructuring charges and certain under- or over-absorbed costs (e.g. pension, stock-based compensation) that the Company may choose not to allocate directly to its business segments. Because this category includes a variety of miscellaneous items, it is subject to fluctuation on a quarterly and annual basis.

3M business segment reporting measures include dual credit to business segments for certain U.S. sales and related operating income. Management evaluates each of its six operating business segments based on net sales and operating income performance, including dual credit U.S. reporting to further incentivize U.S. sales growth. As a result, 3M provides additional (“dual”) credit to those business segments selling products in the U.S. to an external customer when that segment is not the primary seller of the product. For example, certain respirators are primarily sold by the Occupational Health and Environmental Safety Division within the Safety, Security and Protection Services business segment; however, the Industrial and Transportation business segment also sells this product to certain customers in its U.S. markets. In this example, the non-primary selling segment (Industrial and Transportation) would also receive credit for the associated net sales it initiated and the related approximate operating income. The assigned operating income related to dual credit activity may differ from operating income that would result from actual costs associated with such sales. The offset to the dual credit business segment reporting is reflected as a reconciling item entitled “Elimination of Dual Credit,” such that sales and operating income for the U.S. in total are unchanged.

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Supplemental Equity and Comprehensive Income Information

9 Months Ended

Sep. 30, 2011

Supplemental Equity and Comprehensive Income Information

Supplemental Equity and Comprehensive Income Information

NOTE 4.  Supplemental Equity and Comprehensive Income Information

Consolidated Statement of Changes in Equity

3M Company and Subsidiaries

Three months ended September 30, 2011

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at June 30, 2011	$	17,742		$	3,692	$	27,110		$	(10,511	)	$	(2,961	)	$	412
Net income	1,103					1,088									15
Cumulative translation adjustment	(490		)									(507		)	17
Defined benefit pension and post-retirement plans adjustment	77											77			—
Debt and equity securities - unrealized gain (loss)	(2		)									(2		)	—
Cash flow hedging instruments - unrealized gain (loss)	54											54			—
Total comprehensive income	742
Dividends paid	(388		)			(388		)
Stock-based compensation, net of tax impacts	42			42
Reacquired stock	(837		)						(837		)
Issuances pursuant to stock option and benefit plans	111					(26		)	137
Balance at Sept. 30, 2011	$	17,412		$	3,734	$	27,784		$	(11,211	)	$	(3,339	)	$	444

3M Company and Subsidiaries

Nine months ended September 30, 2011

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at Dec. 31, 2010	$	16,017		$	3,477		$	25,995		$	(10,266	)	$	(3,543	)	$	354
Net income	3,383						3,329									54
Cumulative translation adjustment	(14		)										(34		)	20
Defined benefit pension and post- retirement plans adjustment	207												206			1
Debt and equity securities - unrealized gain (loss)	(5		)										(5		)	—
Cash flow hedging instruments - unrealized gain (loss)	37												37			—
Total comprehensive income	3,608
Dividends paid	(1,171		)				(1,171		)
Business combination allocation to noncontrolling interest	56															56
Purchase and sale of subsidiary shares - net	(42		)	(1		)										(41		)
Stock-based compensation, net of tax impacts	258			258
Reacquired stock	(2,181		)							(2,181		)
Issuances pursuant to stock option and benefit plans	867						(369		)	1,236
Balance at Sept. 30, 2011	$	17,412		$	3,734		$	27,784		$	(11,211	)	$	(3,339	)	$	444

3M Company and Subsidiaries

Three months ended September 30, 2010

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at June 30, 2010	$	14,263		$	3,345	$	24,788		$	(10,146	)	$	(4,016	)	$	292
Net income	1,125					1,106									19
Cumulative translation adjustment	669											651			18
Defined benefit pension and postretirement plans adjustment	48											48			—
Debt and equity securities - unrealized gain (loss)	3											3			—
Cash flow hedging instruments - unrealized gain (loss)	(52		)									(52		)	—
Total comprehensive income	1,793
Dividends paid	(375		)			(375		)
Stock-based compensation, net of tax impacts	45			45
Reacquired stock	(11		)						(11		)
Issuances pursuant to stock option and benefit plans	118					(26		)	144
Balance at Sept. 30, 2010	$	15,833		$	3,390	$	25,493		$	(10,013	)	$	(3,366	)	$	329

3M Company and Subsidiaries

Nine months ended September 30, 2010

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at Dec. 31, 2009	$	13,302		$	3,162	$	23,753		$	(10,397	)	$	(3,754	)	$	538
Net income	3,220					3,157									63
Cumulative translation adjustment	216											187			29
Defined benefit pension and postretirement plans adjustment	147											146			1
Debt and equity securities - unrealized gain (loss)	5											5			—
Cash flow hedging instruments - unrealized gain (loss)	11											11			—
Total comprehensive income	3,599
Dividends paid	(1,124		)			(1,124		)
Purchase of subsidiary shares and transfers from noncontrolling interest	(256		)	7								39			(302		)
Stock-based compensation, net of tax impacts	221			221
Reacquired stock	(415		)						(415		)
Issuances pursuant to stock option and benefit plans	506					(293		)	799
Balance at Sept. 30, 2010	$	15,833		$	3,390	$	25,493		$	(10,013	)	$	(3,366	)	$	329

Accumulated Other Comprehensive Income (Loss) Attributable to 3M

	Sept. 30,			Dec. 31,
(Millions)	2011			2010
Cumulative translation adjustment	$	340		$	374
Defined benefit pension and postretirement plans adjustment	(3,673		)	(3,879		)
Debt and equity securities, unrealized gain (loss)	(11		)	(6		)
Cash flow hedging instruments, unrealized gain (loss)	5			(32		)
Total accumulated other comprehensive income (loss)	$	(3,339	)	$	(3,543	)

Consolidated Statement of Comprehensive Income (Loss)

	Three months endedSeptember 30,						Nine months endedSeptember 30,
(Millions)	2011			2010			2011			2010
Net income including noncontrolling interest	$	1,103		$	1,125		$	3,383		$	3,220
Other comprehensive income, net of tax:
Cumulative translation adjustment	(490		)	669			(14		)	216
Defined benefit pension and postretirement plans adjustment	77			48			207			147
Debt and equity securities, unrealized gain (loss)	(2		)	3			(5		)	5
Cash flow hedging instruments, unrealized gain (loss)	54			(52		)	37			11
Total other comprehensive income (loss), net of tax	(361		)	668			225			379
Comprehensive income (loss) including noncontrolling interest	742			1,793			3,608			3,599
Comprehensive (income) loss attributable to noncontrolling interest	(32		)	(37		)	(75		)	(93		)
Comprehensive income (loss) attributable to 3M	$	710		$	1,756		$	3,533		$	3,506

Components of Comprehensive Income (Loss) Attributable to 3M

	Three months endedSeptember 30,						Nine months endedSeptember 30,
(Millions)	2011			2010			2011			2010
Net income attributable to 3M	$	1,088		$	1,106		$	3,329		$	3,157
Cumulative translation	(489		)	586			(63		)	185
Tax effect	(18		)	65			29			2
Cumulative translation - net of tax	(507		)	651			(34		)	187
Defined benefit pension and postretirement plans adjustment	120			75			358			231
Tax effect	(43		)	(27		)	(152		)	(85		)
Defined benefit pension and postretirement plans adjustment - net of tax	77			48			206			146
Debt and equity securities, unrealized gain (loss)	(3		)	3			(8		)	7
Tax effect	1			—			3			(2		)
Debt and equity securities, unrealized gain (loss) - net of tax	(2		)	3			(5		)	5
Cash flow hedging instruments, unrealized gain (loss)	85			(84		)	59			16
Tax effect	(31		)	32			(22		)	(5		)
Cash flow hedging instruments, unrealized gain (loss) - net of tax	54			(52		)	37			11
Total comprehensive income (loss) attributable to 3M	$	710		$	1,756		$	3,533		$	3,506

Reclassification adjustments are made to avoid double counting in comprehensive income items that are also recorded as part of net income. Reclassifications to earnings from accumulated other comprehensive income including noncontrolling interest that related to pension and postretirement expense in the income statement were $117 million pre-tax ($77 million after-tax) for the three months ended September 30, 2011, $355 million pre-tax ($207 million after-tax) for the nine months ended September 30, 2011, $77 million pre-tax ($48 million after-tax) for the three months ended September 30, 2010, and $231 million pre-tax ($147 million after-tax) for the nine months ended September 30, 2010. These pension and postretirement expense pre-tax amounts (including noncontrolling interest) are shown in the tables in Note 8 as amortization of transition (asset) obligation, amortization of prior service cost (benefit) and amortization of net actuarial (gain) loss. Cash flow hedging instruments reclassifications are provided in Note 9. Reclassifications to earnings from accumulated other comprehensive income for debt and equity securities were not material for the three and nine months ended September 30, 2011 and 2010. Other reclassification adjustments were not material. Income taxes are not provided for foreign translation relating to permanent investments in international subsidiaries, but tax effects within cumulative translation does include impacts from items such as net investment hedge transactions.

Purchase and Sale of Subsidiary Shares and Transfers of Ownership Interests Involving Non-Wholly Owned Subsidiaries

As discussed in Note 2, in early March 2011, 3M acquired a controlling interest in Winterthur Technologie AG (Winterthur), making Winterthur a consolidated subsidiary as of that business acquisition date. Subsequent to this business acquisition date, 3M purchased additional outstanding shares of its Winterthur subsidiary increasing 3M’s ownership interest from approximately 86 percent as of the business acquisition date to approximately 98 percent as of September 30, 2011. The $50 million of cash paid in the first nine months of 2011 as a result of these additional purchases of Winterthur shares was classified as other financing activity in the consolidated statement of cash flows. These additional purchases did not result in a material transfer from noncontrolling interest to 3M Company shareholders’ equity. In addition, during the first nine months of 2011, 3M sold a noncontrolling interest in a newly formed subsidiary for an immaterial amount, which was also classified as other financing activity in the consolidated statement of cash flows.

During the second half of 2009 and the first half of 2010, 3M effected a purchase of subsidiary shares and transfers of ownership interests to align activities in Japan and to simplify the Company’s ownership structure. As a result of these activities, beginning in June 2010 the Company has a wholly owned subsidiary in the region in addition to its majority owned Sumitomo 3M Limited entity (Sumitomo 3M). Because the Company retained its controlling interest in the subsidiaries involved, these activities resulted in changes to 3M Company shareholders’ equity and noncontrolling interest. These activities included the following:

· During the second half of 2009, a wholly owned subsidiary that, in turn, owned a portion of the Company’s majority owned Sumitomo 3M, was transferred to another subsidiary (referred to herein as 3M HC) that was majority, rather than wholly, owned. Sumitomo 3M also owned a portion of 3M HC. As a result of the transaction, 3M’s effective ownership in Sumitomo 3M was reduced from 75 percent to 71.5 percent. The transfer resulted in a decrease in 3M Company shareholders’ equity and an increase in noncontrolling interest of $81 million in the second half of 2009.

· During the first quarter of 2010, majority owned 3M HC which, as a result of the transfer above owned a portion of the Company’s majority owned Sumitomo 3M, transferred this interest to Sumitomo 3M. In addition, Sumitomo 3M purchased a portion of its shares held by its noncontrolling interest, Sumitomo Electric Industries, Ltd. (SEI), by paying cash of 5.8 billion Japanese Yen and entering into a note payable to SEI of 17.4 billion Japanese Yen (approximately $63 million and $188 million, respectively, based on applicable exchange rates at that time). As a result of these transactions, 3M’s effective ownership in Sumitomo 3M was increased from 71.5 percent to 75 percent. The cash paid as a result of the purchase of Sumitomo 3M shares from SEI was classified as other financing activity in the consolidated statement of cash flows. The remainder of the purchase financed by the note payable to SEI was considered non-cash financing activity in the first quarter of 2010. These transactions resulted in an increase in 3M Company shareholders’ equity of $22 million and a decrease in noncontrolling interest of $278 million in the first quarter of 2010.

· During the second quarter of 2010, majority owned Sumitomo 3M transferred its interest in 3M HC to 3M HC. As a result of this transaction, 3M HC became wholly owned by the Company. The transfer resulted in an increase in 3M Company shareholders’ equity and a decrease in noncontrolling interest of $24 million in the second quarter of 2010.

Additionally, 3M acquired the remaining noncontrolling interest of a previously owned majority owned subsidiary for an immaterial amount during the first half of 2010.

The following table summarizes the effects of the 2010 transactions on equity attributable to 3M Company shareholders for the nine months ended September 30, 2010.

(Millions)	Nine months ended Sept. 30, 2010
Net income attributable to 3M	$	3,157
Transfers from noncontrolling interest	46
Change in 3M Company shareholders’ equity from net income attributable to 3M and transfers from noncontrolling interest	$	3,203

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Supplemental Equity and Comprehensive Income Information (Details 2) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Accumulated Other Comprehensive Income (Loss) Attributable to 3M
Cumulative translation adjustment	$ 340	$ 374
Defined benefit pension and postretirement plans adjustment	(3,673)	(3,879)
Debt and equity securities, unrealized gain (loss)	(11)	(6)
Cash flow hedging instruments, unrealized gain (loss)	5	(32)
Total accumulated other comprehensive income (loss)	$ (3,339)	$ (3,543)

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Fair Value Measurements

9 Months Ended

Sep. 30, 2011

Fair Value Measurements

Fair Value Measurements

NOTE 10.  Fair Value Measurements

3M follows ASC 820, Fair Value Measurements and Disclosures, with respect to assets and liabilities that are measured at fair value on a recurring basis and nonrecurring basis. Under the standard, fair value is defined as the exit price, or the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants as of the measurement date. The standard also establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. Observable inputs are inputs market participants would use in valuing the asset or liability developed based on market data obtained from sources independent of the Company. Unobservable inputs are inputs that reflect the Company’s assumptions about the factors market participants would use in valuing the asset or liability developed based upon the best information available in the circumstances. The hierarchy is broken down into three levels. Level 1 inputs are quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2 inputs include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, and inputs (other than quoted prices) that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. Categorization within the valuation hierarchy is based upon the lowest level of input that is significant to the fair value measurement.

Assets and Liabilities that are Measured at Fair Value on a Recurring Basis:

For 3M, assets and liabilities that are measured at fair value on a recurring basis primarily relate to available-for-sale marketable securities, available-for-sale investments (included as part of investments in the Consolidated Balance Sheet) and certain derivative instruments. Derivatives include cash flow hedges, interest rate swaps and most net investment hedges. The information in the following paragraphs and tables primarily addresses matters relative to these financial assets and liabilities. Separately, there were no material fair value measurements with respect to nonfinancial assets or liabilities that are recognized or disclosed at fair value in the Company’s financial statements on a recurring basis for the three and nine month periods ended September 30, 2011 and 2010.

3M uses various valuation techniques, which are primarily based upon the market and income approaches, with respect to financial assets and liabilities. Following is a description of the valuation methodologies used for the respective financial assets and liabilities measured at fair value.

Available-for-sale marketable securities — except auction rate securities:

Marketable securities, except auction rate securities, are valued utilizing multiple sources. A weighted average price is used for these securities. Market prices are obtained for these securities from a variety of industry standard data providers, security master files from large financial institutions, and other third-party sources. These multiple prices are used as inputs into a distribution-curve-based algorithm to determine the daily fair value to be used. 3M classifies U.S. treasury securities as level 1, while all other marketable securities (excluding auction rate securities) are classified as level 2. Marketable securities are discussed further in Note 6.

Available-for-sale marketable securities — auction rate securities only:

As discussed in Note 6, auction rate securities held by 3M failed to auction since the second half of 2007. As a result, investments in auction rate securities are valued utilizing third-party indicative bid levels in markets that are not active and broker-dealer valuation models that utilize inputs such as current/forward interest rates, current market conditions and credit default swap spreads. 3M classifies these securities as level 3.

Available-for-sale investments:

Investments include equity securities that are traded in an active market. Closing stock prices are readily available from active markets and are used as being representative of fair value. 3M classifies these securities as level 1.

Derivative instruments:

The Company’s derivative assets and liabilities within the scope of ASC 815, Derivatives and Hedging, are required to be recorded at fair value. The Company’s derivatives that are recorded at fair value include foreign currency forward and option contracts, commodity price swaps, interest rate swaps, and net investment hedges where the hedging instrument is recorded at fair value. Net investment hedges that use foreign currency denominated debt to hedge 3M’s net investment are not impacted by the fair value measurement standard under ASC 820, as the debt used as the hedging instrument is marked to a value with respect to changes in spot foreign currency exchange rates and not with respect to other factors that may impact fair value.

3M has determined that foreign currency forwards and commodity price swaps will be considered level 1 measurements as these are traded in active markets which have identical asset or liabilities, while currency swaps, foreign currency options, interest rate swaps and cross-currency swaps will be considered level 2. For level 2 derivatives, 3M uses inputs other than quoted prices that are observable for the asset. These inputs include foreign currency exchange rates, volatilities, and interest rates. The level 2 derivative positions are primarily valued using standard calculations/models that use as their basis readily observable market parameters. Industry standard data providers are 3M’s primary source for forward and spot rate information for both interest rates and currency rates, with resulting valuations periodically validated through third-party or counterparty quotes and a net present value stream of cash flows model.

The following tables provide information by level for assets and liabilities that are measured at fair value on a recurring basis.

	Fair Value
(Millions)	at Sept. 30,		Fair Value Measurements Using Inputs Considered as
Description	2011		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
U.S. government agency securities	$	389	$	—	$	389	$	—
Foreign government agency securities	3		—		3		—
Corporate debt securities	495		—		495		—
Certificates of deposit/time deposits	117		—		117		—
Commercial paper	138		—		138		—
Asset-backed securities:
Automobile loan related	469		—		469		—
Credit card related	200		—		200		—
Equipment lease related	58		—		58		—
Other	10		—		10		—
U.S. treasury securities	34		34		—		—
U.S. municipal securities	9		—		9		—
Auction rate securities	5		—		—		5
Other securities	2		—		2		—
Investments	5		5		—		—
Derivative instruments — assets:
Foreign currency forward/option contracts	83		76		7		—
Interest rate swap contracts	31		—		31		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	42		42		—		—
Commodity price swap contracts	4		4		—		—

	Fair Value
(Millions)	at Dec. 31,		Fair Value Measurements Using Inputs Considered as
Description	2010		Level 1		Level 2		Level 3
Assets:
Available-for-sale:
Marketable securities:
U.S. government agency securities	$	309	$	—	$	309	$	—
Foreign government agency securities	55		—		55		—
Corporate debt securities	472		—		472		—
Certificates of deposit/time deposits	29		—		29		—
Commercial paper	55		—		55		—
Asset-backed securities:
Automobile loan related	397		—		397		—
Credit card related	149		—		149		—
Equipment lease related	38		—		38		—
Other	8		—		8		—
U.S. treasury securities	99		99		—		—
U.S. municipal securities	23		—		23		—
Auction rate securities	7		—		—		7
Investments	21		21		—		—
Derivative instruments — assets:
Foreign currency forward/option contracts	38		36		2		—
Interest rate swap contracts	39		—		39		—
Liabilities:
Derivative instruments — liabilities:
Foreign currency forward/option contracts	82		82		—		—
Commodity price swap contracts	5		5		—		—

The following table provides a reconciliation of the beginning and ending balances of items measured at fair value on a recurring basis in the table above that used significant unobservable inputs (Level 3).

(Millions)	Three months endedSeptember 30,						Nine months endedSeptember 30,
Marketable securities — auction rate securities only	2011			2010			2011			2010
Beginning balance	$	8		$	7		$	7		$	5
Total gains or losses:
Included in earnings	—			—			—			—
Included in other comprehensive income	(3		)	(1		)	(2		)	1
Purchases, issuances, and settlements	—			—			—			—
Transfers in and/or out of Level 3	—			—			—			—
Ending balance (September 30)	5			6			5			6
Additional losses included in earnings due to reclassifications from other comprehensive income for:
Securities sold during the period ended September 30	—			—			—			—
Securities still held at September 30	—			—			—			—

In addition, the plan assets of 3M’s pension and postretirement benefit plans are measured at fair value on a recurring basis (at least annually). Refer to Note 11 in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K).

Assets and Liabilities that are Measured at Fair Value on a Nonrecurring Basis:

Disclosures are required for certain assets and liabilities that are measured at fair value, but are recognized and disclosed at fair value on a nonrecurring basis in periods subsequent to initial recognition. For 3M, such measurements of fair value relate primarily to long-lived asset impairments. There were no material long-lived asset impairments for the three and nine months ended September 30, 2011 and 2010.

Fair Value of Financial Instruments:

The Company’s financial instruments include cash and cash equivalents, marketable securities, accounts receivable, certain investments, accounts payable, borrowings, and derivative contracts. The fair values of cash and cash equivalents, accounts receivable, accounts payable, and short-term borrowings and current portion of long-term debt approximated carrying values because of the short-term nature of these instruments. Available-for-sale marketable securities and investments, in addition to certain derivative instruments, are recorded at fair values as indicated in the preceding disclosures. The Company utilized third-party quotes to estimate fair values for its long-term debt. Information with respect to the carrying amounts and estimated fair values of these financial instruments follow:

	September 30, 2011				Dec. 31, 2010
(Millions)	CarryingAmount		FairValue		CarryingAmount		FairValue
Long-term debt, excluding current portion	$	4,955	$	5,305	$	4,183	$	4,466

The fair values reflected above consider the terms of the related debt absent the impacts of derivative/hedging activity. The carrying amount of long-term debt referenced above is impacted by certain fixed-to-floating interest rate swaps that are designated as fair value hedges and by the designation of fixed rate Eurobond securities issued by the Company as hedging instruments of the Company’s net investment in its European subsidiaries. 3M’s fixed-rate bonds were trading at a premium at September 30, 2011 and December 31, 2010 due to the low interest rates and tightening of 3M’s credit spreads.

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Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2011

Significant Accounting Policies

Earnings per share

	Three months ended September 30,				Nine months ended  September 30,
(Amounts in millions, except per share amounts)	2011		2010		2011		2010
Numerator:
Net income attributable to 3M	$	1,088	$	1,106	$	3,329	$	3,157
Denominator:
Denominator for weighted average 3M common shares outstanding – basic	707.7		714.0		710.9		713.4
Dilution associated with the Company’s stock-based compensation plans	7.8		11.2		11.9		11.4
Denominator for weighted average 3M common shares outstanding – diluted	715.5		725.2		722.8		724.8
Earnings per share attributable to 3M common shareholders – basic	$	1.54	$	1.55	$	4.68	$	4.42
Earnings per share attributable to 3M common shareholders – diluted	$	1.52	$	1.53	$	4.61	$	4.36

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Commitments and Contingencies

9 Months Ended

Sep. 30, 2011

Commitments and Contingencies

Commitments and Contingencies

NOTE 11.  Commitments and Contingencies

Legal Proceedings:

The Company and some of its subsidiaries are involved in numerous claims and lawsuits, principally in the United States, and regulatory proceedings worldwide. These include various products liability (involving products that the Company now or formerly manufactured and sold), intellectual property, and commercial claims and lawsuits, including those brought under the antitrust laws, and environmental proceedings. Unless otherwise stated, the Company is vigorously defending all such litigation. Additional information can be found in Note 14 “Commitments and Contingencies” in the Company’s Annual Report on Form 10-K for the year ended December 31, 2010, as updated by the Company’s Current Report on Form 8-K dated May 26, 2011, including information about the Company’s process for disclosure and recording of liabilities and insurance receivables related to legal proceedings.

The following table shows the major categories of significant legal matters — respirator mask/asbestos litigation (including Aearo), environmental remediation and other environmental liabilities — for which the Company has been able to estimate its probable liability and for which the Company has taken reserves and the related insurance receivables:

Liability and Receivable Balances	Sept. 30,		Dec. 31,
(Millions)	2011		2010
Respirator mask/asbestos liabilities	$	105	$	126
Respirator mask/asbestos insurance receivables	119		122
Environmental remediation liabilities	$	29	$	24
Environmental remediation insurance receivables	15		15
Other environmental liabilities	$	80	$	90

The following sections first describe the significant legal proceedings in which the Company is involved, and then describe the liabilities and associated insurance receivables the Company has accrued relating to its significant legal proceedings.

Respirator Mask/Asbestos Litigation

As of September 30, 2011, the Company is a named defendant, with multiple co-defendants, in numerous lawsuits in various courts that purport to represent approximately 2,190 individual claimants compared to approximately 2,148 individual claimants with actions pending at December 31, 2010.

The vast majority of the lawsuits and claims resolved by and currently pending against the Company allege use of some of the Company’s mask and respirator products and seek damages from the Company and other defendants for alleged personal injury from workplace exposures to asbestos, silica, coal mine dust or other occupational dusts found in products manufactured by other defendants or generally in the workplace. A minority of claimants generally allege personal injury from occupational exposure to asbestos from products previously manufactured by the Company, which are often unspecified, as well as products manufactured by other defendants, or occasionally at Company premises.

The Company’s current volume of new and pending matters is substantially lower than its historical experience. The Company expects that filing of claims by unimpaired claimants in the future will continue to be at much lower levels than in the past. Accordingly, the number of claims alleging more serious injuries, including mesothelioma and other malignancies, while remaining relatively constant and consistent with historical experience, will represent a greater percentage of total claims than in the past. The Company has prevailed in all nine cases taken to trial, including seven of the eight cases tried to verdict (such trials occurred in 1999, 2000, 2001, 2003, 2004, and 2007), and an appellate reversal in 2005 of the 2001 jury verdict adverse to the Company. The ninth case, tried in 2009, was dismissed by the Court at the close of plaintiff’s evidence, based on the Court’s legal finding that the plaintiff had not presented sufficient evidence to support a jury verdict. This case is being appealed by the plaintiffs and briefing is complete and the parties are waiting for the court to set a hearing date for oral argument.

The Company has demonstrated in these past trial proceedings that its respiratory protection products are effective as claimed when used in the intended manner and in the intended circumstances. Consequently the Company believes that claimants are unable to establish that their medical conditions, even if significant, are attributable to the Company’s respiratory protection products. Nonetheless the Company’s litigation experience indicates that claims of persons with malignant conditions are costlier to resolve than the claims of unimpaired persons, and it therefore believes the average cost of resolving pending and future claims on a per-claim basis will continue to be higher than it experienced in prior periods when the vast majority of claims were asserted by the unimpaired.

As previously reported, the State of West Virginia, through its Attorney General, filed a complaint in 2003 against the Company and two other manufacturers of respiratory protection products in the Circuit Court of Lincoln County, West Virginia and amended its complaint in 2005. The amended complaint seeks substantial, but unspecified, compensatory damages primarily for reimbursement of the costs allegedly incurred by the State for worker’s compensation and healthcare benefits provided to all workers with occupational pneumoconiosis and unspecified punitive damages. While the case has been inactive since the fourth quarter of 2007, the Court held a case management conference in March 2011, but no further activity has occurred in the case since that conference. No liability has been recorded for this matter because the Company believes that liability is not probable and estimable at this time. In addition, the Company is not able to estimate a possible loss or range of loss given the minimal activity in this case and the fact that the complaint asserts claims against two other manufacturers where a defendant’s share of liability may turn on the law of joint and several liability and by the amount of fault a jury allocates to each defendant if a case is ultimately tried.

Respirator Mask/Asbestos Liabilities and Insurance Receivables: The Company estimates its respirator mask/asbestos liabilities, including the cost to resolve the claims and defense costs, by examining: (i) the Company’s experience in resolving claims, (ii) apparent trends, (iii) the apparent quality of claims (e.g., whether the claim has been asserted on behalf of asymptomatic claimants), (iv) changes in the nature and mix of claims (e.g., the proportion of claims asserting usage of the Company’s mask or respirator products and alleging exposure to each of asbestos, silica, coal or other occupational dusts, and claims pleading use of asbestos-containing products allegedly manufactured by the Company), (v) the number of current claims and a projection of the number of future asbestos and other claims that may be filed against the Company, (vi) the cost to resolve recently settled claims, and (vii) an estimate of the cost to resolve and defend against current and future claims.

Developments may occur that could affect the Company’s estimate of its liabilities. These developments include, but are not limited to, significant changes in (i) the number of future claims, (ii) the average cost of resolving claims, (iii) the legal costs of defending these claims and in maintaining trial readiness, (iv) changes in the mix and nature of claims received, (v) trial and appellate outcomes, (vi) changes in the law and procedure applicable to these claims, and (vii) the financial viability of other co-defendants and insurers.

As of September 30, 2011, the Company had reserves for respirator mask/asbestos liabilities of $75 million (excluding Aearo reserves). The Company cannot estimate the amount or range of amounts by which the liability may exceed the reserve the Company has established because of the (i) inherent difficulty in projecting the number of claims that have not yet been asserted, particularly with respect to the Company’s respiratory products that themselves did not contain any harmful materials, (ii) the complaints nearly always assert claims against multiple defendants where the damages alleged are typically not attributed to individual defendants so that a defendant’s share of liability may turn on the law of joint and several liability, which can vary by state, (iii) the multiple factors described above that the Company considers in estimating its liabilities, and (iv) the several possible developments described above that may occur that could affect the Company’s estimate of liabilities.

As of September 30, 2011, the Company’s receivable for insurance recoveries related to the respirator mask/asbestos litigation was $119 million.

Various factors could affect the timing and amount of recovery of this receivable, including (i) delays in or avoidance of payment by insurers; (ii) the extent to which insurers may become insolvent in the future, and (iii) the outcome of negotiations with insurers and legal proceedings with respect to respirator mask/asbestos liability insurance coverage. The difference between the accrued liability and insurance receivable represents in part the time delay between payment of claims on the one hand and receipt of insurance reimbursements on the other hand. Because of the lag time between settlement and payment of a claim, no meaningful conclusions may be drawn from quarterly or annual changes in the amount of receivables for expected insurance recoveries or changes in the number of claimants.

As previously reported, on January 5, 2007 the Company was served with a declaratory judgment action filed on behalf of two of its insurers (Continental Casualty and Continental Insurance Co. — both part of the Continental Casualty Group) disclaiming coverage for respirator mask/asbestos claims. These insurers represent approximately $14 million of the $119 million insurance recovery receivable referenced in the above table. The action, pending in the District Court in Ramsey County, Minnesota, seeks declaratory judgment regarding coverage provided by the policies and the allocation of covered costs among the policies issued by the various insurers. The action named, in addition to the Company, over 60 of the Company’s insurers. This action is similar in nature to an action filed in 1994 with respect to breast implant coverage, which ultimately resulted in the Minnesota Supreme Court’s ruling of 2003 that was largely in the Company’s favor. The plaintiff insurers have served an amended complaint that names some additional insurers and deletes others. A significant number of the insurer defendants named in the amended complaint have been dismissed because of settlements they have reached with 3M regarding the matters at issue in the lawsuit. The case is currently in the discovery phase. Trial is scheduled to begin in the fall of 2012.

Respirator Mask/Asbestos Litigation – Aearo Technologies

On April 1, 2008, a subsidiary of the Company purchased the stock of Aearo Holding Corp., the parent of Aearo Technologies (“Aearo”). Aearo manufactures and sells various products, including personal protection equipment, such as eye, ear, head, face, fall and certain respiratory protection products.

As of September 30, 2011, Aearo and/or other companies that previously owned and operated Aearo’s respirator business (American Optical Corporation, Warner-Lambert LLC, AO Corp. and Cabot Corporation (“Cabot”)) are named defendants, with multiple co-defendants, including the Company, in numerous lawsuits in various courts in which plaintiffs allege use of mask and respirator products and seek damages from Aearo and other defendants for alleged personal injury from workplace exposures to asbestos, silica-related, or other occupational dusts found in products manufactured by other defendants or generally in the workplace.

As of September 30, 2011, the Company, through its Aearo subsidiary, has recorded $30 million as the best estimate of the probable liabilities for product liabilities and defense costs related to current and future Aearo-related asbestos and silica-related claims. Responsibility for legal costs, as well as for settlements and judgments, is currently shared in an informal arrangement among Aearo, Cabot, American Optical Corporation and a subsidiary of Warner Lambert and their insurers (the “Payor Group”). Liability is allocated among the parties based on the number of years each company sold respiratory products under the “AO Safety” brand and/or owned the AO Safety Division of American Optical Corporation and the alleged years of exposure of the individual plaintiff. Aearo’s share of the contingent liability is further limited by an agreement entered into between Aearo and Cabot on July 11, 1995. This agreement provides that, so long as Aearo pays to Cabot an annual fee of $400,000, Cabot will retain responsibility and liability for, and indemnify Aearo against, asbestos and silica-related product liability claims for respirators manufactured prior to July 11, 1995. Because the date of manufacture for a particular respirator allegedly used in the past is often difficult to determine, Aearo and Cabot have applied the agreement to claims arising out of the alleged use of respirators while exposed to asbestos or silica or products containing asbestos or silica prior to January 1, 1997. With these arrangements in place, Aearo’s potential liability is limited to exposures alleged to have arisen from the use of respirators while exposed to asbestos, silica or other occupational dusts on or after January 1, 1997.

To date, Aearo has elected to pay the annual fee. Aearo could potentially be exposed to additional claims for some part of the pre-July 11, 1995 period covered by its agreement with Cabot if Aearo elects to discontinue its participation in this arrangement, or if Cabot is no longer able to meet its obligations in these matters.

Developments may occur that could affect the estimate of Aearo’s liabilities. These developments include, but are not limited to: (i) significant changes in the number of future claims, (ii) significant changes in the average cost of resolving claims, (iii) significant changes in the legal costs of defending these claims, (iv) significant changes in the mix and nature of claims received, (v) trial and appellate outcomes, (vi) significant changes in the law and procedure applicable to these claims, (vii) significant changes in the liability allocation among the co-defendants, (viii) the financial viability of members of the Payor Group including exhaustion of available coverage limits, (ix) the outcome of pending insurance coverage litigation among certain other members of the Payor Group and their respective insurers, and/or (x) a determination that the interpretation of the contractual obligations on which Aearo has estimated its share of liability is inaccurate. The Company cannot determine the impact of these potential developments on its current estimate of Aearo’s share of liability for these existing and future claims. If any of the developments described above were to occur, the actual amount of these liabilities for existing and future claims could be significantly larger than the reserved amount.

Because of the inherent difficulty in projecting the number of claims that have not yet been asserted, the complexity of allocating responsibility for future claims among the Payor Group, and the several possible developments that may occur that could affect the estimate of Aearo’s liabilities, the Company cannot estimate the amount or range of amounts by which Aearo’s liability may exceed the reserve the Company has established.

Environmental Matters and Litigation

The Company’s operations are subject to environmental laws and regulations including those pertaining to air emissions, wastewater discharges, toxic substances, and the handling and disposal of solid and hazardous wastes enforceable by national, state, and local authorities around the world, and private parties in the United States and abroad. These laws and regulations provide, under certain circumstances, a basis for the remediation of contamination, for restoration of or compensation for damages to natural resources, and for personal injury and property damage claims. The Company has incurred, and will continue to incur, costs and capital expenditures in complying with these laws and regulations, defending personal injury and property damage claims, and modifying its business operations in light of its environmental responsibilities. In its effort to satisfy its environmental responsibilities and comply with environmental laws and regulations, the Company has established, and periodically updates, policies relating to environmental standards of performance for its operations worldwide.

Under certain environmental laws, including the United States Comprehensive Environmental Response, Compensation and Liability Act of 1980 and similar state laws, the Company may be jointly and severally liable, typically with other companies, for the costs of remediation of environmental contamination at current or former facilities and at off-site locations. The Company has identified numerous locations, most of which are in the United States, at which it may have some liability. Please refer to the paragraph entitled “Environmental Liabilities and Insurance Receivables” that follows for information on the amount of the reserve.

Environmental Matters

As previously reported, the Company has been voluntarily cooperating with ongoing reviews by local, state, national (primarily the U.S. Environmental Protection Agency (EPA)), and international agencies of possible environmental and health effects of various perfluorinated compounds (“PFCs”), including perfluorooctanoate or “PFOA” and perfluorooctane sulfonate or “PFOS” and other perfluorooctanyl compounds. As a result of its phase-out decision in May 2000, the Company no longer manufactures perfluorooctanyl compounds. The company ceased manufacturing and using the vast majority of these compounds within approximately two years of the phase out announcement, and ceased all manufacturing and the last significant use of this chemistry by 2008. Through its ongoing life cycle management and its raw material composition identification processes associated with the Company’s policies covering the use of all persistent and bio-accumulative materials, the Company has on rare occasion identified the presence of perfluorooctanyl precursor chemicals in materials purchased from suppliers that may ultimately degrade to PFOA. Upon such identification, the Company works with the suppliers to find substitutes for such chemicals.

Regulatory activities concerning PFOA and/or PFOS continue in the United States, Europe and elsewhere, and before certain international bodies. These activities include gathering of exposure and use information, risk assessment, and consideration of regulatory approaches. The EPA continues to develop Drinking Water Health Advisories for PFOS and PFOA, which are expected to be released in 2012. Those advisory levels will supersede the current provisional advisory levels. In an effort to move toward developing standards under the Safe Drinking Water Act, the EPA has proposed to have public water suppliers monitor for six PFCs to determine the extent of their occurrence.

In late 2008 and early 2009, the EPA undertook testing of private wells and soils at certain agricultural sites in Alabama where wastewater treatment sludge was applied from the municipal wastewater treatment plant in Decatur, Alabama that received wastewater from numerous sources, including sanitary wastewater from 3M. In this same timeframe, the EPA also issued provisional health advisory values for drinking water for PFOA of 0.4 parts per billion (“ppb”) and PFOS of 0.2 ppb. Pursuant to an information request from EPA, a group of local industries, including 3M, and the Decatur utility have been working to identify and test private wells in the area, and to connect to municipal water any private wells used for drinking water that exceed the EPA’s provisional health advisory levels. EPA’s and the industry’s testing of public drinking water supplies in the area indicate that the levels of PFOA and PFOS in municipal water supplies are well below the provisional health advisories. 3M and other companies have completed a survey of properties near the sites where Decatur utility’s wastewater treatment sludge was applied to identify any additional private drinking water wells not already identified by the EPA, and have connected a small number of wells that exceeded the provisional health advisory levels for PFOS and PFOA to municipal water. 3M and the other companies have continued to monitor those few private wells that showed levels of PFOS or PFOA above detection levels but below the EPA’s provisional health advisory levels. EPA has recently notified 3M that the agency is satisfied that 3M has completed its obligations under the information request and that EPA is closing its request.

The Agency for Toxic Substances and Disease Registry (ATSDR) has completed a bio-monitoring study evaluating PFC blood levels in volunteers living near the sludge application fields. The Company expects ATSDR to release its report in 2012.

3M continues its third and final phase of work pursuant to a Memorandum of Understanding with the EPA regarding an environmental assessment program at the Company’s Decatur manufacturing site. That work includes groundwater sampling off-site from the Decatur facility (unrelated to the work described above involving the Decatur utility’s wastewater treatment sludge) as well as at three local landfills used by the facility.

The Company is continuing to make progress in its work, under the supervision of state regulators, to address its historic disposal of PFC-containing waste associated with manufacturing operations at the Cottage Grove, Minnesota and Decatur, Alabama plants.

As previously reported, the Company entered into a voluntary remedial action agreement with the Alabama Department of Environmental Management (ADEM) to address the presence of PFCs in the soil at the Company’s manufacturing facility in Decatur, Alabama. For approximately twenty years, the Company incorporated its wastewater treatment plant sludge containing PFCs in fields at its Decatur facility pursuant to a permit issued by ADEM. After a review of the available options to address the presence of PFCs in the soil, ADEM agreed that the preferred remediation option is to use a multilayer cap over the former sludge incorporation areas on the manufacturing site with subsequent groundwater migration controls and treatment. Implementation of that option will continue throughout the balance of 2011 and is expected to be completed in 2016.

The Company continues to work with the Minnesota Pollution Control Agency (MPCA) pursuant to the terms of the previously disclosed May 2007 Settlement Agreement and Consent Order to address the presence of perfluorinated compounds in the soil and groundwater at former disposal sites in Washington County, Minnesota (Oakdale and Woodbury) and at the Company’s manufacturing facility at Cottage Grove, Minnesota. Under this agreement, the Company’s principal obligations include (i) evaluating releases of perfluorinated compounds from these sites and proposing response actions; (ii) providing treatment or alternative drinking water upon identifying any level exceeding a Health Based Value (“HBV”) or Health Risk Limit (“HRL”) (i.e., the amount of a chemical in drinking water determined by the Minnesota Department of Health to be safe for people to drink for a lifetime) for any perfluorinated compounds as a result of contamination from these sites; (iii) remediating any source of other PFCs at these sites that is not controlled by actions to remediate PFOA and PFOS; and (iv) sharing information with the MPCA about perfluorinated compounds. During 2008, the MPCA issued formal decisions adopting remedial options for the former disposal sites in Washington County, Minnesota (Oakdale and Woodbury). In August 2009, the MPCA issued a formal decision adopting remedial options for the Company’s Cottage Grove manufacturing facility. During the spring and summer of 2010, 3M began implementing the remedial options at the Cottage Grove and Woodbury sites. 3M commenced the remedial option at the Oakdale site in late 2010. At each location the remedial options were among those recommended by the Company. Remediation work will continue at all three sites throughout the balance of 2011 and into 2012.

The Company cannot predict what additional regulatory actions arising from the foregoing proceedings and activities, if any, may be taken regarding such compounds or the consequences of any such actions.

Environmental Litigation

As previously reported, a former employee filed a purported class action lawsuit in 2002 in the Circuit Court of Morgan County, Alabama seeking unstated damages and alleging that the plaintiffs suffered fear, increased risk, subclinical injuries, and property damage from exposure to perfluorochemicals at or near the Company’s Decatur, Alabama, manufacturing facility. The Circuit Court in 2005 granted the Company’s motion to dismiss the named plaintiff’s personal injury-related claims on the basis that such claims are barred by the exclusivity provisions of the state’s Workers Compensation Act. The plaintiffs’ counsel filed an amended complaint in November 2006, limiting the case to property damage claims on behalf of a purported class of residents and property owners in the vicinity of the Decatur plant. Also, in 2005, the judge in a second purported class action lawsuit (filed by three residents of Morgan County, Alabama, seeking unstated compensatory and punitive damages involving alleged damage to their property from emissions of perfluorochemical compounds from the Company’s Decatur, Alabama, manufacturing facility that formerly manufactured those compounds) granted the Company’s motion to abate the case, effectively putting the case on hold pending the resolution of class certification issues in the first action described above filed in the same court in 2002. Despite the stay, plaintiffs filed an amended complaint seeking damages for alleged personal injuries and property damage on behalf of the named plaintiffs and the members of a purported class. No further action in the case is expected unless and until the stay is lifted.

In February 2009, a resident of Franklin County, Alabama, filed a purported class action lawsuit in the Circuit Court of Franklin County seeking compensatory damages and injunctive relief based on the application by the Decatur utility’s wastewater treatment plant of wastewater treatment sludge to farmland and grasslands in the state that allegedly contain PFOA, PFOS and other perfluorochemicals. The named defendants in the case include 3M, its subsidiary Dyneon LLC, Daikin America, Inc., Synagro-WWT, Inc., Synagro South, LLC and Biological Processors of America. The named plaintiff seeks to represent a class of all persons within the State of Alabama who have had PFOA, PFOS and other perfluorochemicals released or deposited on their property. In March 2010, the Alabama Supreme Court ordered the case transferred from Franklin County to Morgan County. In May, 2010, consistent with its handling of the other matters, the Morgan County Circuit Court abated this case, putting it on hold pending the resolution of the class certification issues in the first case filed there.

In March 2011, several residents of Lawrence County, Alabama, filed a lawsuit in the Circuit Court of Lawrence County seeking unspecified compensatory and punitive damages and other relief for alleged personal injuries due to the exposure to PFCs. The named defendants in the case include the City of Decatur, Alabama, 3M, its subsidiary Dyneon LLC, Daikin America, Inc., Toray Industries, Inc. and two of its U.S. subsidiaries, Synagro-WWT, Inc., Synagro South, LLC and Biological Processors of America, and certain individuals not associated with 3M. According to the complaint, Synagro acquired wastewater treatment sludge that allegedly contained PFOA, PFOS and other perfluorochemicals from the Decatur utility’s wastewater treatment plant, and made it into a fertilizer that it sold to farmers who applied it to their farmland in Morgan, Limestone and Lawrence counties, including land adjacent to the plaintiffs’ residence. Plaintiffs have dismissed the City of Decatur from the case.

On December 30, 2010, the State of Minnesota, by its Attorney General Lori Swanson, acting in its capacity as trustee of the natural resources of the State of Minnesota, filed a lawsuit in Hennepin County District Court against 3M to recover damages (including unspecified assessment costs and reasonable attorney’s fees) for alleged injury to, destruction of, and loss of use of certain of the State’s natural resources under the Minnesota Environmental Response and Liability Act (MERLA) and the Minnesota Water Pollution Control Act (MWPCA), as well as statutory nuisance and common law claims of trespass, nuisance, and negligence with respect to the presence of PFC’s in the groundwater, surface water, fish or other aquatic life and sediments. The State also seeks declarations under MERLA that 3M is responsible for all damages the State may suffer in the future for injuries to natural resources from releases of PFCs into the environment, and under MWPCA that 3M is responsible for compensation for future loss or destruction of fish, aquatic life and other damages. On January 14, 2011, the City of Lake Elmo filed a motion to intervene in the State of Minnesota lawsuit and seeks damages in excess of $50,000 and other legal and equitable relief, including reasonable attorneys’ fees, for alleged contamination of city property, wells, groundwater and water contained in the wells with PFCs under several theories, including common law and statutory nuisance, strict liability, trespass, negligence, and conversion. The court granted the City of Lake Elmo’s motion to intervene in this lawsuit.

In June 2009, the Company, along with more than 250 other companies, was served with a third-party complaint seeking contribution towards the cost of cleaning up a 17-mile stretch of the Passaic River in New Jersey. After commencing an enforcement action in 1990, the State of New Jersey filed suit against Maxus Energy, Tierra Solutions, Occidental Chemical and two other companies seeking cleanup and removal costs and other damages associated with the presence of dioxin and other hazardous substances in the sediment of the Passaic. The third-party complaint seeks to spread those costs among the third-party defendants, including the Company. Based on the cleanup remedy currently proposed by the EPA, the total costs at issue could easily exceed $1 billion. The Company’s recent involvement in the case appears to relate to its past disposal of industrial waste at two commercial waste disposal facilities in New Jersey. Whether, and to what extent, the Company may be required to contribute to the costs at issue in the case remains to be determined. The Company does not yet have a basis for estimating its potential exposure in this case, although the Company currently believes its allocable share, if any, is likely to be a fraction of one percent of the total costs.

The Company has not recorded any liabilities for the Company’s environmental litigation described in this section because the Company believes that liability is not probable and estimable at this time. Because of the limited activity in these cases, the Company is not able to estimate a possible loss or range of loss, with the exception of the Passaic River litigation, where the Company indicated that its potential exposure, if any, is likely to be a fraction of one percent of the total costs.

Environmental Liabilities and Insurance Receivables

As of September 30, 2011, the Company had recorded liabilities of $29 million for estimated “environmental remediation” costs based upon an evaluation of currently available facts with respect to each individual site and also recorded related insurance receivables of $15 million. The Company records liabilities for remediation costs on an undiscounted basis when they are probable and reasonably estimable, generally no later than the completion of feasibility studies or the Company’s commitment to a plan of action. Liabilities for estimated costs of environmental remediation, depending on the site, are based primarily upon internal or third-party environmental studies, and estimates as to the number, participation level and financial viability of any other potentially responsible parties, the extent of the contamination and the nature of required remedial actions. The Company adjusts recorded liabilities as further information develops or circumstances change. The Company expects that it will pay the amounts recorded over the periods of remediation for the applicable sites, currently ranging up to 20 years.

As of September 30, 2011, the Company had recorded liabilities of $80 million for “other environmental liabilities” based upon an evaluation of currently available facts to implement the Settlement Agreement and Consent Order with the MPCA, the remedial action agreement with ADEM, and to address trace amounts of perfluorinated compounds in drinking water sources in the City of Oakdale and Lake Elmo, Minnesota, as well as presence in the soil and groundwater at the Company’s manufacturing facilities in Decatur, Alabama, and Cottage Grove, Minnesota, and at two former disposal sites in Washington County, Minnesota (Oakdale and Woodbury). The Company expects that most of the spending will occur over the next five years.

It is difficult to estimate the cost of environmental compliance and remediation given the uncertainties regarding the interpretation and enforcement of applicable environmental laws and regulations, the extent of environmental contamination and the existence of alternative cleanup methods. Developments may occur that could affect the Company’s current assessment, including, but not limited to: (i) changes in the information available regarding the environmental impact of the Company’s operations and products; (ii) changes in environmental regulations, changes in permissible levels of specific compounds in drinking water sources, or changes in enforcement theories and policies, including efforts to recover natural resource damages; (iii) new and evolving analytical and remediation techniques; (iv) success in allocating liability to other potentially responsible parties; and (v) the financial viability of other potentially responsible parties and third-party indemnitors. For sites included in both “environmental remediation liabilities” and “other environmental liabilities,” at which remediation activity is largely complete and remaining activity relates primarily to operation and maintenance of the remedy, including required post-remediation monitoring, the Company believes the exposure to loss in excess of the amount accrued would not be material to the Company’s consolidated results of operations or financial condition. However, for locations at which remediation activity is largely on-going, the Company cannot estimate a possible loss or range of loss in excess of the associated established reserves for the reasons described above.

Employment Litigation

In January 2011, 3M reached an agreement in principle with plaintiffs’ counsel to resolve the Whitaker and Garcia lawsuits.  The Whitaker settlement agreement was signed by all parties in March 2011. The court granted preliminary approval of the settlement on April 6, 2011, and provisionally certified a class for settlement purposes only. The final approval hearing is scheduled in December 2011. The Garcia settlement agreement has been signed by the parties. All plaintiffs subject to the Garcia settlement have signed and not timely revoked individual releases of claims against 3M, and the parties anticipate filing a stipulation of dismissal, with prejudice, in that matter following administration of the settlement, which will occur concurrently with administration of the Whitaker settlement. If finalized and approved by the court, administration of the settlement agreements will take several months to complete. In September 2011, 3M reached an agreement in the form of a proposed Consent Decree with the U.S. Equal Employment Opportunity Commission (EEOC) to resolve related charges as described below. The Consent Decree was filed concurrently with a complaint in the U.S. District Court for the District of Minnesota and has been approved by the court. The Consent Decree addressed the outstanding charges of age discrimination in addition to claims on behalf of a class of certain former employees as defined in the charges and subsequently in the complaint. 3M agreed, as part of the Consent Decree, to ensure that its policies and practices further the objectives of equal employment as set forth in the federal Age Discrimination in Employment Act and to make certain enhancements in its employee communications and development programs. The EEOC agreed, as part of the Consent Decree, not to take any further action against 3M in connection with the charges and as otherwise set forth in the decree. Administration of the EEOC settlement is in process and will take several months to complete. The amount of each of the proposed settlements is not material to the Company’s consolidated results of operations or financial condition. The background of this litigation is set forth below.

Whitaker Lawsuit:

As previously reported, in December, 2004, one current and one former employee of the Company filed a purported class action in the District Court of Ramsey County, Minnesota, seeking to represent a class of all current and certain former salaried employees employed by the Company in Minnesota below a certain salary grade who were age 46 or older at any time during the applicable period to be determined by the Court (the “Whitaker” lawsuit). The complaint alleges the plaintiffs suffered various forms of employment discrimination on the basis of age in violation of the Minnesota Human Rights Act and seeks injunctive relief, unspecified compensatory damages (which they seek to treble under the statute), including back and front pay, punitive damages (limited by statute to $8,500 per claimant) and attorneys’ fees. In January 2006, the plaintiffs filed a motion to join four additional named plaintiffs. This motion was unopposed by the Company and the four plaintiffs were joined in the case, although one plaintiff’s claim was dismissed following an individual settlement. On April 11, 2008, the Court granted the plaintiffs’ motion to certify the case as a class action. On April 28, 2009, the Minnesota Court of Appeals reversed the District Court’s class certification decision, finding that the District Court had not required plaintiffs to meet the proper legal standards for certification of a class under Minnesota law and incorrectly had deferred resolving certain factual disputes that were relevant to the class certification requirements. The Court of Appeals remanded the case to the District Court for further proceedings in line with the evidentiary standards defined in its opinion. The trial court took expert testimony and held a hearing on the class certification question and had the matter under advisement when the parties reached a tentative settlement which rendered the certification issues moot.

Garcia Lawsuit

The Company was served on May 7, 2009 with a purported class action/collective action age discrimination lawsuit, which was filed in United States District Court for the Northern District of California, San Jose Division (the “Garcia lawsuit”). The case was subsequently transferred to the U.S. District Court for the District of Minnesota.

In this case, five former and one current employee of the Company are seeking to represent all current and former salaried employees employed by the Company in the United States during the liability period, which plaintiffs define as 2001 to the present. In addition to the six named plaintiffs, there are approximately 130 other current or former employees who have signed “opt-in” forms, seeking to join the action. The Garcia lawsuit expressly excludes those persons encompassed within the proposed class in the Whitaker lawsuit. The same firm, joined by additional California counsel and local Minnesota counsel for the Garcia lawsuit, represents the plaintiffs in both cases.

The allegations of the complaint in the Garcia lawsuit are similar to those in the Whitaker lawsuit. Plaintiffs claim that they and other similarly situated employees suffered various forms of employment discrimination on the basis of age in violation of the federal Age Discrimination in Employment Act. In regard to these claims, plaintiffs seek to represent “all persons who were 46 or older when employed by 3M in the United States in a salaried position below the level of director, or salary grade 18, during the liability period.”  Because federal law protects persons age 40 and older from age discrimination, with respect to their claim of disparate impact only, plaintiffs also propose an alternative definition of similarly situated persons that would begin at age 40. On behalf of this group, plaintiffs seek injunctive relief, unspecified compensatory damages including back and front pay, benefits, liquidated damages and attorneys’ fees.

Certain of the plaintiffs’ and putative class members’ employment terminated under circumstances in which they were eligible for group severance plan benefits and in connection with those plans they signed waivers of claims, including age discrimination claims. Plaintiffs claim the waivers of age discrimination claims were invalid in various respects. This subset of release-signing plaintiffs seeks a declaration that the waivers of age discrimination claims are invalid, other injunctive, but non-monetary, remedies, and attorneys’ fees.

EEOC Age-Discrimination Charges

Six former employees and one current employee, all but one of whom are named plaintiffs in the Garcia lawsuit, have also filed age discrimination charges against the Company with the EEOC and various pertinent state agencies, alleging age discrimination similar to the Whitaker and Garcia lawsuits and claiming that a class of similarly situated persons exists. Of these, three former employees filed charges in 2005 in Minnesota, Texas, and California. These filings include allegations that the release of claims signed by certain former employees in the purported class defined in the charges is invalid for various reasons and assert age discrimination claims on behalf of certain current and former salaried employees in states other than Minnesota and New Jersey. In 2006, a current employee filed an age discrimination charge against the Company with the EEOC and the pertinent state agency in Missouri, asserting claims on behalf of a class of all current and certain former salaried employees who worked in Missouri and states other than Minnesota and New Jersey. In 2007, a former employee filed an age discrimination charge against the Company with the EEOC and the pertinent state agency in California, asserting claims on behalf of a class of all current and certain former salaried employees who worked in California. In January 2009, two former employees filed age discrimination charges against the Company with the EEOC and the pertinent state agency in Minnesota. The filings include allegations that the release of claims signed by certain former employees in the purported class defined in the charges is invalid for various reasons and assert age discrimination claims on behalf of certain current and former salaried employees in states other than Minnesota. The same law firm represents the plaintiffs in the Whitaker lawsuit as well as the claimants in each of these EEOC proceedings.

Compliance Matters

On November 12, 2009, the Company contacted the Department of Justice (DOJ) and Securities and Exchange Commission (SEC) to voluntarily disclose that the Company was conducting an internal investigation as a result of reports it received about its subsidiary in Turkey, alleging bid rigging and bribery and other inappropriate conduct in connection with the supply of certain reflective and other materials and related services to Turkish government entities. The Company also contacted certain affected government agencies in Turkey. The Company retained outside counsel to conduct an assessment of its policies, practices, and controls and to evaluate its overall compliance with the Foreign Corrupt Practices Act, including an ongoing review of our practices in certain other countries and acquired entities. As part of its ongoing review, the Company has also reported to the DOJ and SEC issues arising from transactions in other countries. The Company continues to cooperate with the DOJ and SEC and government agencies in Turkey in the Company’s ongoing investigation of this matter. The Company cannot predict at this time the outcome of its investigation or what regulatory actions may be taken or what other consequences may result.

Other Matters

Commercial Litigation

In September 2010, various parties, on behalf of a purported class of shareholders of Cogent, Inc. (“Cogent”), commenced three lawsuits against the Company, Cogent, and its directors in the Delaware Court of Chancery. Plaintiffs allege that 3M, in connection with its tender offer for Cogent shares, aided and abetted the breach of fiduciary duties by Cogent directors and seek an unspecified amount of damages. The three cases were consolidated, expedited discovery was conducted, and Plaintiffs’ motion for a preliminary injunction to enjoin the acquisition was denied on October 1, 2010. On November 15, 2010, plaintiffs filed an amended complaint that added directors of Cogent, Inc. appointed by 3M, as named defendants, and asserted additional claims of breach of fiduciary duties in connection with the acquisition and a subsequent offering period. The acquisition closed on December 1, 2010. 3M moved to dismiss all claims. In response to 3M’s motion, the plaintiffs filed a second amended complaint in August 2011. 3M has moved to dismiss all claims of the second amended complaint.

In September 2010, various parties, again on behalf of a purported class of Cogent shareholders, commenced six lawsuits against the Company, Cogent and its directors in the Los Angeles Superior Court for the State of California that contained similar claims that 3M had aided and abetted the breach of fiduciary duties by Cogent directors. The parties have reached a resolution of these matters. A separate lawsuit was commenced in September 2010 by an individual, again on behalf of a purported class of Cogent shareholders, against Cogent and its directors in the United States District Court for the Central District of California that raised similar claims; plaintiff later filed an amended complaint that also named the Company. The plaintiff has voluntarily dismissed that lawsuit.

Separately, several purported holders of Cogent shares, representing a total of approximately 5.8 million shares, have asserted appraisal rights under Delaware law. The Company has answered the appraisal petition and is defending this matter vigorously.

3M filed suit against Avery Dennison Corporation in the United States District Court for the District of Minnesota in June 2010, alleging that Avery’s OmniCube™ full cube retroreflective sheeting products, which are used for highway signage, infringe a number of 3M patents. 3M also sought a declaratory judgment from the District Court in Minnesota that 3M’s Diamond Grade™ DG3 full cube retroreflective sheeting does not infringe two Avery patents. In October 2010, Avery Dennison filed a lawsuit against the Company in the United States District Court for the Central District of California, alleging that 3M monopolized or attempted to monopolize the markets for Type XI retroreflective sheeting and for broad high performance sheeting in violation of the Sherman Act, as well as other claims. Avery alleges that 3M manipulated the standards-setting process of the American Society for Testing and Materials (ASTM), a private organization responsible for creating standards for, among other things, retroreflective sheeting used for highway signage; entered into illegal and anticompetitive contracts; and engaged in other anticompetitive acts including false advertising and disparagement. 3M’s motion to transfer the antitrust case to the United States District Court for the District of Minnesota was granted in February 2011. In the patent case, 3M’s motion to preliminarily enjoin the sales of Avery’s OmniCube retroreflective sheeting was denied in December 2010. The District Court also granted Avery’s motion to dismiss 3M’s declaratory judgment suit in March 2011. 3M has appealed the dismissal of the declaratory judgment lawsuit. In the meantime, 3M’s patent infringement lawsuit against Avery and Avery’s antitrust suit against 3M are moving forward in the Minnesota Court.

In December 2010, Meda AB filed a lawsuit in the Supreme Court of the State of New York, County of New York, alleging breach of certain representations and warranties contained in the October 2006 acquisition agreement pursuant to which Meda AB acquired the Company’s European pharmaceutical business. The lawsuit seeks to recover an amount to be determined at trial, but not less than $200 million, in compensatory damages alleging that 3M failed to disclose, during the due diligence period, certain pricing arrangements between 3M’s French subsidiary and the French government agency that determines the eligible levels of reimbursement for prescription pharmaceuticals. The damage amounts specified in complaints are not a meaningful factor in any assessment of the Company’s potential liability. The Company believes it has a number of legal and factual defenses to this claim and will vigorously defend it.

In December 2008, the investors that sold Acolyte Biomedica, Ltd. to the Company’s subsidiary in the United Kingdom filed suit in London’s High Court seeking damages for breach of the acquisition agreement, including damages of 40 million pounds sterling for loss of potential earnout payments under the acquisition agreement. Notwithstanding significant investments and efforts by the Company to support the sales of BacLite™, a methicillin-resistant staphlococcus aureus (MRSA) screening device, the product was not a commercial success. A trial in London’s High Court began on June 13, 2011. The trial concluded July 18, 2011. Written post trial submissions were served July 27, 2011 and oral closing arguments occurred in early October 2011. The Company expects a decision in the next several months.

For commercial litigation matters described in this section for which a liability, if any, has been recorded, the Company believes the amount recorded, as well as the possible loss or range of loss in excess of the established reserve is not material to the Company’s consolidated results of operations or financial condition. For those matters for which a liability has not been recorded, the Company believes that liability is not probable and estimable and the Company is not able to estimate a possible loss or range of loss at this time.

XML

Goodwill and Intangible Assets (Details) (USD $) In Millions	9 Months Ended
	Sep. 30, 2011
Goodwill Information
Goodwill acquired during the period	$ 230
Goodwill acquired during the period which is deductible for tax purposes	7
Increase (decrease) in goodwill related to preliminary allocation of purchase price for prior acquisitions	(2)
Goodwill
Balance at the beginning of the period	6,820
Acquisition activity	228
Translation and other	92
Balance at the end of the period	7,140
Industrial and Transportation
Goodwill
Balance at the beginning of the period	1,783
Acquisition activity	209
Translation and other	25
Balance at the end of the period	2,017
Health Care
Goodwill
Balance at the beginning of the period	1,506
Acquisition activity	(1)
Translation and other	28
Balance at the end of the period	1,533
Display and Graphics
Goodwill
Balance at the beginning of the period	994
Acquisition activity	4
Translation and other	3
Balance at the end of the period	1,001
Consumer and Office
Goodwill
Balance at the beginning of the period	187
Acquisition activity	13
Translation and other	5
Balance at the end of the period	205
Safety, Security and Protection Services
Goodwill
Balance at the beginning of the period	1,670
Acquisition activity	(3)
Translation and other	21
Balance at the end of the period	1,688
Electro and Communications
Goodwill
Balance at the beginning of the period	680
Acquisition activity	6
Translation and other	10
Balance at the end of the period	$ 696

XML

Derivatives

9 Months Ended

Sep. 30, 2011

Derivatives

Derivatives

NOTE 9.  Derivatives

The Company uses interest rate swaps, currency swaps, commodity price swaps, and forward and option contracts to manage risks generally associated with foreign exchange rate, interest rate and commodity price fluctuations. The information that follows explains the various types of derivatives and financial instruments used by 3M, how and why 3M uses such instruments, how such instruments are accounted for, and how such instruments impact 3M’s financial position and performance.

Additional information with respect to the impacts on other comprehensive income of nonderivative hedging and derivative instruments is included in Note 4. Additional information with respect to the fair value of derivative instruments is included in Note 10. References to information regarding derivatives and/or hedging instruments associated with the Company’s long-term debt are also made in Note 10 to the Consolidated Financial Statements in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K).

Types of Derivatives/Hedging Instruments and Inclusion in Income/Other Comprehensive Income

Cash Flow Hedges:

For derivative instruments that are designated and qualify as cash flow hedges, the effective portion of the gain or loss on the derivative is reported as a component of other comprehensive income and reclassified into earnings in the same period during which the hedged transaction affects earnings. Gains and losses on the derivative representing either hedge ineffectiveness or hedge components excluded from the assessment of effectiveness are recognized in current earnings.

Cash Flow Hedging - Foreign Currency Forward and Option Contracts: The Company enters into foreign exchange forward and option contracts to hedge against the effect of exchange rate fluctuations on cash flows denominated in foreign currencies and certain intercompany financing transactions. These transactions are designated as cash flow hedges. The settlement or extension of these derivatives will result in reclassifications (from accumulated other comprehensive income) to earnings in the period during which the hedged transactions affect earnings. Generally, 3M dedesignates these cash flow hedge relationships in advance of the occurrence of the forecasted transaction. The portion of gains or losses on the derivative instrument previously accumulated in other comprehensive income for dedesignated hedges remains in accumulated other comprehensive income until the forecasted transaction occurs. Changes in the value of derivative instruments after dedesignation are recorded in earnings and are included in the Derivatives Not Designated as Hedging Instruments section below. Hedge ineffectiveness and the amount excluded from effectiveness testing recognized in income on cash flow hedges were not material for the three and nine month periods ended September 30, 2011 and 2010. The maximum length of time over which 3M hedges its exposure to the variability in future cash flows for a majority of the forecasted transactions is 12 months and, accordingly, at September 30, 2011, the majority of the Company’s open foreign exchange forward and option contracts had maturities of one year or less. The dollar equivalent gross notional amount of the Company’s foreign exchange forward and option contracts designated as cash flow hedges at September 30, 2011 was approximately $4.2 billion.

Cash Flow Hedging - Commodity Price Management: The Company manages commodity price risks through negotiated supply contracts, price protection agreements and forward physical contracts. The Company uses commodity price swaps relative to natural gas as cash flow hedges of forecasted transactions to manage price volatility. The related mark-to-market gain or loss on qualifying hedges is included in other comprehensive income to the extent effective, and reclassified into cost of sales in the period during which the hedged transaction affects earnings. Generally, the length of time over which 3M hedges its exposure to the variability in future cash flows for its forecasted natural gas transactions is 12 months. No significant commodity cash flow hedges were discontinued and hedge ineffectiveness was not material for the three and nine month periods ended September 30, 2011 and 2010. The dollar equivalent gross notional amount of the Company’s natural gas commodity price swaps designated as cash flow hedges at September 30, 2011 was $31 million.

Cash Flow Hedging - Forecasted Debt Issuance: In August 2011, in anticipation of the September 2011 issuance of $1 billion in five-year fixed rate notes, 3M executed a pre-issuance cash flow hedge on a notional amount of $400 million by entering into a forward-starting five-year floating-to-fixed interest rate swap. Upon debt issuance in September 2011, 3M terminated the floating-to-fixed interest rate swap. The termination of the swap resulted in a $7 million pre-tax loss ($4 million after-tax) that will be amortized over the five-year life of the note.

As of September 30, 2011, the Company had a balance of $5 million associated with the after tax net unrealized gain associated with cash flow hedging instruments recorded in accumulated other comprehensive income. This includes a $4 million balance (loss) related to a floating-to-fixed interest rate swap (discussed in the preceding paragraph), which will be amortized over the five-year life of the note. 3M expects to reclassify a majority of the remaining balance to earnings over the next 12 months (with the impact offset by cash flows from underlying hedged items).

The location in the consolidated statements of income and comprehensive income and amounts of gains and losses related to derivative instruments designated as cash flow hedges are provided in the following table. Reclassifications of amounts from accumulated other comprehensive income into income include accumulated gains (losses) on dedesignated hedges at the time earnings are impacted by the forecasted transaction.

Three months ended September 30, 2011 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	49		Cost of sales	$	(41	)	Cost of sales	$	—
Foreign currency forward contracts	(56		)	Interest expense	(56		)	Interest expense	—
Commodity price swap contracts	2			Cost of sales	—			Cost of sales	—
Interest rate swap contracts	(7		)	Interest expense	—			Interest expense	—
Total	$	(12	)		$	(97	)		$	—

Nine months ended September 30, 2011 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(12	)	Cost of sales	$	(75	)	Cost of sales	$	—
Foreign currency forward contracts	(55		)	Interest expense	(54		)	Interest expense	—
Commodity price swap contracts	—			Cost of sales	(4		)	Cost of sales	—
Interest rate swap contracts	(7		)	Interest expense	—			Interest expense	—
Total	$	(74	)		$	(133	)		$	—

Three months ended September 30, 2010 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(76	)	Cost of sales	$	5		Cost of sales	$	—
Foreign currency forward contracts	108			Interest expense	108			Interest expense	—
Commodity price swap contracts	(6		)	Cost of sales	(3		)	Cost of sales	—
Total	$	26			$	110			$	—

Nine months ended September 30, 2010 (Millions)	Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective Portion of Derivative			Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income				Ineffective Portion of Gain (Loss) on Derivative and Amount Excluded from Effectiveness Testing Recognized in Income
Derivatives in Cash Flow Hedging Relationships	Amount			Location	Amount			Location	Amount
Foreign currency forward/option contracts	$	(25	)	Cost of sales	$	(48	)	Cost of sales	$	—
Foreign currency forward contracts	41			Interest expense	41			Interest expense	—
Commodity price swap contracts	(13		)	Cost of sales	(6		)	Cost of sales	—
Total	$	3			$	(13	)		$	—

Fair Value Hedges:

For derivative instruments that are designated and qualify as fair value hedges, the gain or loss on the derivatives as well as the offsetting loss or gain on the hedged item attributable to the hedged risk are recognized in current earnings.

Fair Value Hedging - Interest Rate Swaps: The Company manages interest expense using a mix of fixed and floating rate debt. To help manage borrowing costs, the Company may enter into interest rate swaps. Under these arrangements, the Company agrees to exchange, at specified intervals, the difference between fixed and floating interest amounts calculated by reference to an agreed-upon notional principal amount. The mark-to-market of these fair value hedges is recorded as gains or losses in interest expense and is offset by the gain or loss of the underlying debt instrument, which also is recorded in interest expense. These fair value hedges are highly effective and, thus, there is no impact on earnings due to hedge ineffectiveness. The dollar equivalent (based on inception date foreign currency exchange rates) gross notional amount of the Company’s interest rate swaps at September 30, 2011 was $1.1 billion.

At September 30, 2011, the Company had interest rate swaps designated as fair value hedges of underlying fixed rate obligations. In July 2007, in connection with the issuance of a seven-year Eurobond for an amount of 750 million Euros, the Company completed a fixed-to-floating interest rate swap on a notional amount of 400 million Euros as a fair value hedge of a portion of the fixed interest rate Eurobond obligation. In August 2010, the Company terminated 150 million Euros of the notional amount of this swap. As a result, a gain of 18 million Euros, recorded as part of the balance of the underlying debt, will be amortized over this debt’s remaining life. The Company also has two fixed-to-floating interest rate swaps with an aggregate notional amount of $800 million designated as fair value hedges of the fixed interest rate obligation under its $800 million, three-year, 4.50% notes issued in October 2008.

The location in the consolidated statements of income and amounts of gains and losses related to derivative instruments designated as fair value hedges and similar information relative to the hedged items are as follows:

Three months ended September 30, 2011 (Millions)	Gain (Loss) on Derivative Recognized in Income			Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount		Location	Amount
Interest rate swap contracts	Interest expense	$	1	Interest expense	$	(1	)
Total		$	1		$	(1	)

Nine months ended September 30, 2011 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(7	)	Interest expense	$	7
Total		$	(7	)		$	7

Three months ended September 30, 2010 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(16	)	Interest expense	$	16
Total		$	(16	)		$	16

Nine months ended September 30, 2010 (Millions)	Gain (Loss) on Derivative Recognized in Income				Gain (Loss) on Hedged Item Recognized in Income
Derivatives in Fair Value Hedging Relationships	Location	Amount			Location	Amount
Interest rate swap contracts	Interest expense	$	(6	)	Interest expense	$	6
Total		$	(6	)		$	6

Net Investment Hedges:

As circumstances warrant, the Company uses cross currency swaps, forwards and foreign currency denominated debt to hedge portions of the Company’s net investments in foreign operations. For hedges that meet the effectiveness requirements, the net gains or losses attributable to changes in spot exchange rates are recorded in cumulative translation within other comprehensive income. The remainder of the change in value of such instruments is recorded in earnings. Recognition in earnings of amounts previously recorded in cumulative translation is limited to circumstances such as complete or substantially complete liquidation of the net investment in the hedged foreign operation. At September 30, 2011, there were no cross currency swaps and foreign currency forward contracts designated as net investment hedges.

In addition to the derivative instruments used as hedging instruments in net investment hedges, 3M also uses foreign currency denominated debt as nonderivative hedging instruments in certain net investment hedges. In July and December 2007, the Company issued seven-year fixed rate Eurobond securities for amounts of 750 million Euros and 275 million Euros, respectively. 3M designated each of these Eurobond issuances as hedging instruments of the Company’s net investment in its European subsidiaries.

The location in the consolidated statements of income and comprehensive income and amounts of gains and losses related to derivative and nonderivative instruments designated as net investment hedges are as follows. There were no reclassifications of the effective portion of net investment hedges out of accumulated other comprehensive income into income for the periods presented in the table below.

Three months ended September 30, 2011 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument		Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount		Location	Amount
Foreign currency denominated debt	$	85	N/A	$	—
Total	$	85		$	—

Nine months ended September 30, 2011 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument			Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in  Income
Net Investment Hedging Relationships	Amount			Location	Amount
Foreign currency denominated debt	$	(35	)	N/A	$	—
Total	$	(35	)		$	—

Three months ended September 30, 2010 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument			Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount			Location	Amount
Foreign currency denominated debt	$	(148	)	N/A	$	—
Total	$	(148	)		$	—

Nine months ended September 30, 2010 (Millions) Derivative and Nonderivative Instruments in	Pretax Gain (Loss) Recognized as Cumulative Translation within Other Comprehensive Income on Effective Portion of Instrument		Ineffective Portion of Gain (Loss) on Instrument and Amount Excluded from Effectiveness Testing Recognized in Income
Net Investment Hedging Relationships	Amount		Location	Amount
Foreign currency denominated debt	$	77	N/A	$	—
Total	$	77		$	—

Derivatives Not Designated as Hedging Instruments:

Derivatives not designated as hedging instruments include dedesignated foreign currency forward and option contracts that formerly were designated in cash flow hedging relationships (as referenced in the preceding Cash Flow Hedges section). In addition, 3M enters into foreign currency forward contracts and commodity price swaps to offset, in part, the impacts of certain intercompany activities (primarily associated with intercompany licensing arrangements) and fluctuations in costs associated with the use of certain precious metals, respectively. These derivative instruments are not designated in hedging relationships; therefore, fair value gains and losses on these contracts are recorded in earnings. The dollar equivalent gross notional amount of these forward, option and swap contracts not designated as hedging instruments totaled $1.1 billion as of September 30, 2011. The Company does not hold or issue derivative financial instruments for trading purposes.

The location in the consolidated statements of income and amounts of gains and losses related to derivative instruments not designated as hedging instruments are as follows:

(Millions)	Three months ended Sept. 30, 2011 Gain (Loss) on Derivative Recognized in Income			Nine months ended Sept. 30, 2011 Gain (Loss) on Derivative Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount		Location	Amount
Foreign currency forward/option contracts	Cost of sales	$	32	Cost of sales	$	4
Foreign currency forward contracts	Interest expense	6		Interest expense	18
Total		$	38		$	22

(Millions)	Three months ended Sept. 30, 2010 Gain (Loss) on Derivative Recognized in Income				Nine months ended Sept. 30, 2010 Gain (Loss) on Derivative Recognized in Income
Derivatives Not Designated as Hedging Instruments	Location	Amount			Location	Amount
Foreign currency forward/option contracts	Cost of sales	$	(38	)	Cost of sales	$	(12	)
Foreign currency forward contracts	Interest expense	(7		)	Interest expense	(18		)
Total		$	(45	)		$	(30	)

Location and Fair Value Amount of Derivative Instruments

The following tables summarize the fair value of 3M’s derivative instruments, excluding nonderivative instruments used as hedging instruments, and their location in the consolidated balance sheet.

September 30, 2011 (Millions)	Assets			Liabilities
Fair Value of Derivative Instruments	Location	Amount		Location	Amount
Derivatives designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	65	Other current liabilities	$	31
Commodity price swap contracts	Other current assets	—		Other current liabilities	4
Interest rate swap contracts	Other assets	31		Other liabilities	—
Total derivatives designated as hedging instruments		$	96		$	35
Derivatives not designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	18	Other current liabilities	$	11
Total derivatives not designated as hedging instruments		$	18		$	11
Total derivative instruments		$	114		$	46

December 31, 2010 (Millions)	Assets			Liabilities
Fair Value of Derivative Instruments	Location	Amount		Location	Amount
Derivatives designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	26	Other current liabilities	$	48
Commodity price swap contracts	Other current assets	—		Other current liabilities	5
Interest rate swap contracts	Other assets	39		Other liabilities	—
Total derivatives designated as hedging instruments		$	65		$	53
Derivatives not designated as hedging instruments
Foreign currency forward/option contracts	Other current assets	$	12	Other current liabilities	$	34
Total derivatives not designated as hedging instruments		$	12		$	34
Total derivative instruments		$	77		$	87

Additional information with respect to the fair value of derivative instruments is included in Note 10.

Currency Effects and Credit Risk

Currency Effects: 3M estimates that year-on-year currency effects, including hedging impacts, increased net income attributable to 3M by approximately $51 million for the three months ended September 30, 2011 and increased net income attributable to 3M by approximately $131 million for the nine months ended September 30, 2011. This estimate includes the effect of translating profits from local currencies into U.S. dollars and the impact of currency fluctuations on the transfer of goods between 3M operations in the United States and abroad. This estimate also includes year-on-year currency effects from transaction gains and losses, including derivative instruments designed to reduce foreign currency exchange rate risks, which 3M estimates increased net income attributable to 3M by approximately $18 million for the three months ended September 30, 2011 and decreased net income attributable to 3M by approximately $8 million for the nine months ended September 30, 2011.

Credit risk: The Company is exposed to credit loss in the event of nonperformance by counterparties in interest rate swaps, currency swaps, commodity price swaps, and forward and option contracts. However, the Company’s risk is limited to the fair value of the instruments. The Company actively monitors its exposure to credit risk through the use of credit approvals and credit limits, and by selecting major international banks and financial institutions as counterparties. The Company does not anticipate nonperformance by any of these counterparties. 3M has credit support agreements in place with two of its primary derivatives counterparties. Under these agreements, either party is required to post eligible collateral when the market value of transactions covered by these agreements exceeds specified thresholds, thus limiting credit exposure for both parties.

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Fair Value Measurements (Details 3) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Financial Instruments
Long-term debt (excluding current portion)	$ 4,955	$ 4,183
Carrying Amount
Financial Instruments
Long-term debt (excluding current portion)	4,955	4,183
Fair Value
Financial Instruments
Long-term debt (excluding current portion)	$ 5,305	$ 4,466

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Acquisitions

9 Months Ended

Sep. 30, 2011

Acquisitions

Acquisitions

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.

	First Nine Months 2011 Acquisition Activity
(Millions) Asset (Liability)	Winterthur Technologie AG			Other Acquisitions			Total
Accounts receivable	$	43		$	40		$	83
Inventory	76			27			103
Other current assets	6			3			9
Property, plant, and equipment	73			81			154
Purchased finite-lived intangible assets	226			58			284
Purchased goodwill	152			76			228
Accounts payable and other liabilities, net of other assets	(76		)	(30		)	(106		)
Interest bearing debt	(79		)	(7		)	(86		)
Deferred tax asset/(liability)	(60		)	(12		)	(72		)
Net assets acquired	$	361		$	236		$	597
Noncontrolling interest	(56		)	—			(56		)
Net assets acquired excluding noncontrolling interest	$	305		$	236		$	541
Supplemental information:
Cash paid	$	327		$	240		$	567
Less: Cash acquired	32			4			36
Cash paid, net of cash acquired	$	295		$	236		$	531
Non-cash	10			—			10
Net assets acquired excluding noncontrolling interest	$	305		$	236		$	541

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.

(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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Income Taxes

9 Months Ended

Sep. 30, 2011

Income Taxes

Income Taxes

NOTE 5.  Income Taxes

The Company files income tax returns in the U.S. federal jurisdiction, and various states and foreign jurisdictions. With few exceptions, the Company is no longer subject to U.S. federal, state and local, or non-U.S. income tax examinations by tax authorities for years before 2003.

The IRS completed its field examination of the Company’s U.S. federal income tax returns for the years 2005 through 2007 in the fourth quarter of 2009. The Company protested certain IRS positions within these tax years and entered into the administrative appeals process with the IRS during the first quarter of 2010. During the first quarter of 2010, the IRS completed its field examination of the Company’s U.S. federal income tax return for the 2008 year. The Company protested certain IRS positions for 2008 and entered into the administrative appeals process with the IRS during the second quarter of 2010. During the first quarter of 2011, the IRS completed its field examination of the Company’s U.S. federal income tax return for the 2009 year. The Company protested certain IRS positions for 2009 and entered into the administrative appeals process with the IRS during the second quarter of 2011. Currently, the Company is under examination by the IRS for its U.S. federal income tax returns for the years 2010 and 2011. It is anticipated that the IRS will complete its examination of the Company for 2010 by the end of the first quarter of 2012, and for 2011 by the end of the first quarter of 2013. As of September 30, 2011, the IRS has not proposed any significant adjustments to the Company’s tax positions for which the Company is not adequately reserved.

During the first quarter of 2010, the Company paid the agreed upon assessments for the 2005 tax year. During the second quarter of 2010, the Company paid the agreed upon assessments for the 2008 tax year. During the second quarter of 2011, the Company received a refund from the IRS for the 2004 tax year. Payments relating to other proposed assessments arising from the 2005 through 2011 examinations may not be made until a final agreement is reached between the Company and the IRS on such assessments or upon a final resolution resulting from the administrative appeals process or judicial action. In addition to the U.S. federal examination, there is also limited audit activity in several U.S. state and foreign jurisdictions.

3M anticipates changes to the Company’s uncertain tax positions due to the closing of the various audit years mentioned above. Currently, the Company is not able to reasonably estimate the amount by which the liability for unrecognized tax benefits will increase or decrease during the next 12 months as a result of the ongoing income tax authority examinations. The total amounts of unrecognized tax benefits that, if recognized, would affect the effective tax rate as of September 30, 2011 and December 31, 2010, respectively, are $319 million and $394 million.

The Company recognizes interest and penalties accrued related to unrecognized tax benefits in tax expense. The Company recognized in the consolidated statement of income on a gross basis approximately $3 million of benefit and $4 million of expense for the three months ended September 30, 2011 and September 30, 2010, respectively, and had an immaterial impact and approximately $5 million of benefit for the nine months ended September 30, 2011 and September 30, 2010, respectively. At September 30, 2011 and December 31, 2010, accrued interest and penalties in the consolidated balance sheet on a gross basis were $58 million and $52 million, respectively. Included in these interest and penalty amounts are interest and penalties related to tax positions for which the ultimate deductibility is highly certain but for which there is uncertainty about the timing of such deductibility. Because of the impact of deferred tax accounting, other than interest and penalties, the disallowance of the shorter deductibility period would not affect the annual effective tax rate but would accelerate the payment of cash to the taxing authority to an earlier period.

The effective tax rate for the first nine months of 2011 was 28.1 percent, compared to 28.3 percent in the first nine months of 2010, a decrease of 0.2 percent. The first nine months of 2010 includes a one-time income tax charge of $84 million as a result of the March 2010 enactment of the Patient Protection and Affordable Care Act, including modifications made in the Health Care and Education Reconciliation Act of 2010, which increased the first nine months 2010 effective tax rate by approximately 1.8 percent. Since future anticipated retiree health care liabilities and related tax subsidies were already reflected in 3M’s financial statements, the change in law resulted in a reduction of the value of the company’s deferred tax asset related to the subsidy. Other factors on a combined net basis increased the effective tax rate for the first nine months of 2011 when compared to the first nine months of 2010 by 1.6 percent, with the most significant item related to international taxes. This was due primarily to the one-time 2010 tax benefits resulting from the corporate alignment transactions that allowed the Company to increase its ownership of a foreign subsidiary. These transactions are described in the section of Note 4 entitled “Purchase and Sale of Subsidiary Shares and Transfers of Ownership Interests Involving Non-Wholly Owned Subsidiaries”. In addition to the transaction noted above, a corporate reorganization of a wholly owned subsidiary provided a one-time benefit to international taxes in the second quarter of 2011. The Company’s effective tax rate also benefited during the first nine months of 2011 from the reinstatement of the research and development credit and adjustments to its income tax reserves.

The provision for income taxes is determined using the asset and liability approach. Under this approach, deferred income taxes represent the expected future tax consequences of temporary differences between the carrying amounts and tax basis of assets and liabilities. The Company records a valuation allowance to reduce its deferred tax assets when uncertainty regarding their realizability exits. As of September 30, 2011 and December 31, 2010, the Company had valuation allowances of $128 million on its deferred tax assets.

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Income Taxes (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Income tax
Net UTB impacting the effective tax rate	$ 319		$ 319		$ 394
Interest and penalties related to unrecognized tax benefits, expense (benefit) recognized on a gross basis	(3)	4		(5)
Interest and penalties related to unrecognized tax benefits, accrued on a gross basis	58		58		52
Effective tax rate (as a percent)			28.10%	28.30%
Change in effective income tax rate from prior reporting period to current reporting period (as a percent)			(0.20%)
Reduction in deferred tax asset, elimination of subsidy				84
Change in effective tax rate as a result of the Medicare Modernization Act (as a percent)				1.80%
Change in effective tax rate from prior reporting period to current reporting period as a result of international tax rates and other items (as a percent)			1.60%
Deferred tax assets valuation allowance	$ 128		$ 128		$ 128

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Acquisitions (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2011 Y Acquistion CounterParties Segment	Sep. 30, 2010	Mar. 31, 2011 Winterthur Technologie AG	Sep. 30, 2011 Winterthur Technologie AG	Sep. 30, 2011 Other Acquisitions
Business Acquisitions Information
Accounts receivable	$ 83			$ 43	$ 40
Inventory	103			76	27
Other current assets	9			6	3
Property, plant, and equipment	154			73	81
Purchased finite-lived intangible assets	284			226	58
Purchased goodwill	228			152	76
Accounts payable and other liabilities, net of other assets	(106)			(76)	(30)
Interest bearing debt	(86)			(79)	(7)
Deferred tax asset/(liability)	(72)			(60)	(12)
Net assets acquired	597			361	236
Noncontrolling interest	(56)			(56)
Net assets acquired excluding noncontrolling interest	541			305	236
Supplemental information:
Cash paid	567			327	240
Less: Cash acquired	36			32	4
Cash paid, net of cash acquired	531	48		295	236
Non-cash	10			10
Net assets acquired excluding noncontrolling interest	$ 541			$ 305	$ 236
Number of business combinations completed	8
Percentage of subsidiary share's owned by entity on the business acquisition date (as a percent)			86.00%
Percentage of subsidiary share's owned by entity as of latest balance sheet date (as a percent)				98.00%
Acquired finite-lived intangible assets, weighted-average life (in years)	14
Acquired finite-lived intangible assets life, low end of range (in years)	3
Acquired finite-lived intangible assets life, high end of range (in years)	20

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Stock-Based Compensation (Details 3) (Stock Option Program, USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2011 M Y	Sep. 30, 2010
Stock Option Program
Balance at the beginning of the period	70,335,044
Granted - Annual	5,514,500
Granted - Progressive (Reload)	234,639
Granted - Other	5,667
Exercised	(11,408,114)
Canceled	(281,801)
Balance at the end of the period	64,399,935
Weighted average exercise price - Beginning balance	$ 74.80
Weighted average exercise price - Annual grants	$ 89.46
Weighted average exercise price - Progressive (Reload)	$ 94.21
Weighted average exercise price - Other	$ 90.42
Weighted average exercise price - Exercised	$ 68.55
Weighted average exercise price - Canceled	$ 74.24
Weighted average exercise price - Ending balance	$ 77.24
Options exercisable	52,765,533
Options exercisable, exercise price	$ 76.81
Weighted Average Remaining Contractual Life for options outstanding (in months)	57
Aggregate Intrinsic Value for options outstanding	$ 192
Weighted Average Remaining Contractual Life for options exercisable (in months)	47
Aggregate Intrinsic Value for options exercisable	152
Compensation expense yet to be recognized for stock options	71
Weighted average life of remaining vesting period for stock options (in years)	1.8
Total intrinsic value of stock options exercised	283	214
Cash received from options exercised	782	433
Tax benefit realized from exercise of stock options	$ 86	$ 63
Annual
Share- based compensation assumptions
Weighted average exercise price	$ 89.47
Risk-free interest rate (as a percent)	2.80%
Dividend yield (as a percent)	2.60%
Expected volatility (as a percent)	22.00%
Expected life (in months)	72
Black-Scholes fair value	$ 16.10

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Business Segments (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2011 Y Acquistion CounterParties Segment	Dec. 31, 2010 Industrial and Transportation	Dec. 31, 2010 Health Care	Dec. 31, 2010 Safety, Security and Protection Services	Dec. 31, 2010 Electro and Communications	Dec. 31, 2010 Elimination of Dual Credit and Corporate and Unallocated
Business Segments
Number of operating business segments	6
Business Segment Information
Increase (decrease) in net sales due to product transfers		$ (152)	$ (8)	$ 8	$ 121	$ 31

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Fair Value Measurements (Details 2) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Reconciliation of items measured at fair value on a recurring basis that used significant unobservable inputs (Level 3)
Balance at the beginning of the period	$ 8	$ 7	$ 7	$ 5
Total gains or losses included in other comprehensive income	(3)	(1)	(2)	1
Balance at the end of the period	$ 5	$ 6	$ 5	$ 6

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Marketable Securities

9 Months Ended

Sep. 30, 2011

Marketable Securities

Marketable Securities

NOTE 6.  Marketable Securities

The Company invests in agency securities, corporate securities, asset-backed securities, treasury securities and other securities. The following is a summary of amounts recorded on the Consolidated Balance Sheet for marketable securities (current and non-current).

(Millions)	Sept. 30, 2011		Dec. 31, 2010
U.S. government agency securities	$	257	$	246
Foreign government agency securities	—		52
Corporate debt securities	389		280
Commercial paper	138		55
Certificates of deposit/time deposits	117		29
U.S. treasury securities	—		55
U.S. municipal securities	6		20
Asset-backed securities:
Automobile loan related	388		253
Credit card related	144		79
Equipment lease related	35		24
Other	10		8
Asset-backed securities total	577		364
Other securities	2		—
Current marketable securities	$	1,486	$	1,101
U.S. government agency securities	$	132	$	63
Foreign government agency securities	3		3
Corporate debt securities	106		192
U.S. treasury securities	34		44
U.S. municipal securities	3		3
Asset-backed securities:
Automobile loan related	81		144
Credit card related	56		70
Equipment lease related	23		14
Asset-backed securities total	160		228
Auction rate securities	5		7
Non-current marketable securities	$	443	$	540
Total marketable securities	$	1,929	$	1,641

Classification of marketable securities as current or non-current is dependent upon management’s intended holding period, the security’s maturity date and liquidity considerations based on market conditions. If management intends to hold the securities for longer than one year as of the balance sheet date, they are classified as non-current. At September 30, 2011, gross unrealized losses totaled approximately $11 million (pre-tax), while gross unrealized gains totaled approximately $2 million (pre-tax). At December 31, 2010, gross unrealized losses totaled approximately $9 million (pre-tax), while gross unrealized gains totaled approximately $5 million (pre-tax). Gross realized gains and losses on sales or maturities of marketable securities for the first nine months of 2011 and 2010 were not material. Cost of securities sold use the first in, first out (FIFO) method. Since these marketable securities are classified as available-for-sale securities, changes in fair value will flow through other comprehensive income, with amounts reclassified out of other comprehensive income into earnings upon sale or “other-than-temporary” impairment.

3M reviews impairments associated with its marketable securities in accordance with the measurement guidance provided by ASC 320, Investments-Debt and Equity Securities, when determining the classification of the impairment as “temporary” or “other-than-temporary”. A temporary impairment charge results in an unrealized loss being recorded in the other comprehensive income component of shareholders’ equity. Such an unrealized loss does not reduce net income attributable to 3M for the applicable accounting period because the loss is not viewed as other-than-temporary. The factors evaluated to differentiate between temporary and other-than-temporary include the projected future cash flows, credit ratings actions, and assessment of the credit quality of the underlying collateral, as well as other factors.

The balances at September 30, 2011 for marketable securities by contractual maturity are shown below. Actual maturities may differ from contractual maturities because the issuers of the securities may have the right to prepay obligations without prepayment penalties.

(Millions)	Sept. 30, 2011
Due in one year or less	$	1,013
Due after one year through three years	805
Due after three years through five years	96
Due after five years	15
Total marketable securities	$	1,929

3M has a diversified marketable securities portfolio of $1.929 billion as of September 30, 2011. Within this portfolio, current and long-term asset-backed securities (estimated fair value of $737 million) are primarily comprised of interests in automobile loans and credit cards. At September 30, 2011, the asset-backed securities credit ratings were AAA or A-1+, with the exception of two securities rated A1 or A3 with a fair market value of $7 million.

3M’s marketable securities portfolio includes auction rate securities that represent interests in investment grade credit default swaps; however, currently these holdings comprise less than one percent of this portfolio. The estimated fair value of auction rate securities is $5 million at September 30, 2011 and $7 million at December 31, 2010. Gross unrealized losses within accumulated other comprehensive income related to auction rate securities totaled $8 million (pre-tax) at September 30, 2011 and $6 million (pre-tax) at December 31, 2010. As of September 30, 2011, auction rate securities associated with these balances have been in a loss position for more than 12 months. Since the second half of 2007, these auction rate securities failed to auction due to sell orders exceeding buy orders. Liquidity for these auction-rate securities is typically provided by an auction process that resets the applicable interest rate at pre-determined intervals, usually every 7, 28, 35, or 90 days. The funds associated with failed auctions will not be accessible until a successful auction occurs or a buyer is found outside of the auction process. Refer to Note 10 for a table that reconciles the beginning and ending balances of auction rate securities.

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Marketable Securities (Details 2) (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Marketable securities by contractual maturity
Due in one year or less	$ 1,013
Due after one year through three years	805
Due after three years through five years	96
Due after five years	15
Total marketable securities	$ 1,929	$ 1,641

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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation

Stock-Based Compensation Expense

	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Cost of sales	$	5		$	6		$	25		$	26
Selling, general and administrative expenses	28			45			159			174
Research, development and related expenses	5			6			26			28
Stock-based compensation expenses	$	38		$	57		$	210		$	228
Income tax benefits	$	(12	)	$	(13	)	$	(68	)	$	(68	)
Stock-based compensation expenses, net of tax	$	26		$	44		$	142		$	160

Stock Option Activity

Stock Option Program

					Remaining	Aggregate
	Number of		Exercise		Contractual	Intrinsic Value
	Options		Price*		Life* (months)	(millions)
Under option —
January 1	70,335,044		$	74.80
Granted
Annual	5,514,500		89.46
Progressive (Reload)	234,639		94.21
Other	5,667		90.42
Exercised	(11,408,114	)	68.55
Canceled	(281,801	)	74.24
September 30	64,399,935		$	77.24	57	$	192
Options exercisable
September 30	52,765,533		$	76.81	47	$	152

*Weighted average

Stock Option Assumptions

	Annual
Stock Option Assumptions	2011
Exercise price	$	89.47
Risk-free interest rate	2.8		%
Dividend yield	2.6		%
Expected volatility	22.0		%
Expected life (months)	72
Black-Scholes fair value	$	16.10

Restricted Stock and Restricted Stock Units Activity

Restricted Stock and Restricted Stock Units	Number of Awards		Grant Date Fair Value*
Nonvested balance —
As of January 1	5,573,302		$	70.43
Granted
Annual	889,448		89.46
Performance shares	375,146		83.34
Other	335,164		87.55
Vested	(1,277,111	)	72.33
Forfeited	(106,367	)	71.58
As of September 30	5,789,582		$	74.74

*Weighted average

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Document and Entity Information	9 Months Ended
	Sep. 30, 2011
Document and Entity Information
Entity Registrant Name	3M CO
Entity Central Index Key	0000066740
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	700,844,681
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3

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Goodwill and Intangible Assets (Details 2) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010
Goodwill and Intangible Assets
Intangible assets (excluding goodwill) acquired through business combinations during the period	$ 284		$ 284
Acquired intangible assets disclosures
Total gross carrying amount	2,897		2,897		2,567
Total accumulated amortization	(1,071)		(1,071)		(872)
Total finite-lived intangible assets - net	1,826		1,826		1,695
Non-amortizable intangible assets (tradenames)	126		126		125
Total intangible assets - net	1,952		1,952		1,820
Amortization expense for acquired intangible assets	59	44	176	130
Expected amortization expense for acquired intangible assets recorded as of balance sheet date
Last Quarter 2011			59
2012			223
2013			212
2014			189
2015			177
2016			164
After 2016			802
Patents
Acquired intangible assets disclosures
Total gross carrying amount	568		568		551
Total accumulated amortization	(371)		(371)		(345)
Other amortizable intangible assets (primarily tradenames and customer related intangibles)
Acquired intangible assets disclosures
Total gross carrying amount	2,329		2,329		2,016
Total accumulated amortization	$ (700)		$ (700)		$ (527)

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Marketable Securities (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2011 D M	Dec. 31, 2010
Marketable securities classification
Current marketable securities	$ 1,486	$ 1,101
Non-current marketable securities	443	540
Total marketable securities	1,929	1,641
Gross unrealized losses on marketable securities (pre-tax)	11	9
Gross unrealized gains on marketable securities (pre-tax)	2	5
U.S. government agency securities
Marketable securities classification
Current marketable securities	257	246
Non-current marketable securities	132	63
Foreign government agency securities
Marketable securities classification
Current marketable securities		52
Non-current marketable securities	3	3
Corporate debt securities
Marketable securities classification
Current marketable securities	389	280
Non-current marketable securities	106	192
Commercial paper
Marketable securities classification
Current marketable securities	138	55
Certificates of deposit/time deposits
Marketable securities classification
Current marketable securities	117	29
U.S. treasury securities
Marketable securities classification
Current marketable securities		55
Non-current marketable securities	34	44
U.S. municipal securities
Marketable securities classification
Current marketable securities	6	20
Non-current marketable securities	3	3
Asset-backed securities:
Marketable securities classification
Current marketable securities	577	364
Non-current marketable securities	160	228
Estimated fair value of current and long-term asset-backed securities	737
Number of securities rated A1 or A3	2
Estimated fair value of asset-backed securities rated A1 or A3	7
Asset-backed securities Automobile loan related
Marketable securities classification
Current marketable securities	388	253
Non-current marketable securities	81	144
Asset-backed securities Credit card related
Marketable securities classification
Current marketable securities	144	79
Non-current marketable securities	56	70
Asset-backed securities Equipment lease related
Marketable securities classification
Current marketable securities	35	24
Non-current marketable securities	23	14
Asset-backed securities Other asset-backed securities
Marketable securities classification
Current marketable securities	10	8
Auction rate securities
Marketable securities classification
Non-current marketable securities	5	7
Percentage of interests in auction rate securities to portfolio, maximum (as a percent)	1.00%
Estimated fair value of auction-rate securities	5	7
Gross unrealized losses (pre-tax) within accumulated other comprehensive income related to auction rate securities	8	6
Minimum period that auction rate securities have been in a loss position (in months)	12
Pre-determined intervals during which liquidity for auction rate securities is typically provided 1 (in days)	7
Pre-determined intervals during which liquidity for auction rate securities is typically provided 2 (in days)	28
Pre-determined intervals during which liquidity for auction rate securities is typically provided 3 (in days)	35
Pre-determined intervals during which liquidity for auction rate securities is typically provided 4 (in days)	90
Other securities
Marketable securities classification
Current marketable securities	$ 2

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Significant Accounting Policies (Details) (USD $) In Millions, except Per Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011	Mar. 31, 2011	Sep. 30, 2010	Mar. 31, 2010	Sep. 30, 2011	Sep. 30, 2010
Supplemental Balance Sheet Information
Revision of amounts previously presented related to purchase of additional shares of non-wholly owned consolidated subsidiaries, which increased cash used in financing activities and decreased cash used in investing activities		$ 33		$ 63
Earnings per share
Options outstanding not included in computation of diluted earnings per share (in shares)	29.7		30.2		12.3	30.4
Numerator:
Net income attributable to 3M	$ 1,088		$ 1,106		$ 3,329	$ 3,157
Denominator:
Denominator for weighted average 3M common shares outstanding - basic (in shares)	707.7		714.0		710.9	713.4
Dilution associated with the Company's stock-based compensation plans (in shares)	7.8		11.2		11.9	11.4
Denominator for weighted average 3M common shares outstanding - diluted (in shares)	715.5		725.2		722.8	724.8
Earnings per share attributable to 3M common shareholders - basic (in dollars per share)	$ 1.54		$ 1.55		$ 4.68	$ 4.42
Earnings per share attributable to 3M common shareholders - diluted (in dollars per share)	$ 1.52		$ 1.53		$ 4.61	$ 4.36

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Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2011

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.

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Stock-Based Compensation (Details)	9 Months Ended
	Sep. 30, 2011 Y Acquistion CounterParties Segment
Stock-Based Compensation
Vesting period, low end of range (in years)	1
Vesting period, high end of range (in years)	3
Expiration of annual grants (in years)	10
Retirement age eligibility for employees (in years)	55
Retirement eligibility for employees, minimum years of service required (in years)	5
Percent of stock-based compensation related to retiree-eligible population (as a percent)	28.00%
Number of shares available for grant	21,936,920

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Business Segments (Details 2) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Business Segment Information
Net sales	$ 7,531	$ 6,874	$ 22,522	$ 19,953
Operating Income (Loss)	1,581	1,576	4,814	4,617
Industrial and Transportation
Business Segment Information
Net sales	2,580	2,171	7,671	6,328
Operating Income (Loss)	525	434	1,585	1,340
Health Care
Business Segment Information
Net sales	1,246	1,092	3,770	3,316
Operating Income (Loss)	367	325	1,100	1,015
Display and Graphics
Business Segment Information
Net sales	935	1,065	2,851	2,981
Operating Income (Loss)	179	282	631	802
Consumer and Office
Business Segment Information
Net sales	1,096	1,026	3,134	2,892
Operating Income (Loss)	244	235	661	665
Safety, Security and Protection Services
Business Segment Information
Net sales	954	811	2,894	2,468
Operating Income (Loss)	202	164	643	544
Electro and Communications
Business Segment Information
Net sales	838	803	2,538	2,254
Operating Income (Loss)	181	183	559	506
Corporate and Unallocated
Business Segment Information
Net sales	1	4	9	12
Operating Income (Loss)	(91)	(26)	(289)	(190)
Elimination of Dual Credit
Business Segment Information
Net sales	(119)	(98)	(345)	(298)
Operating Income (Loss)	$ (26)	$ (21)	$ (76)	$ (65)

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Long-Term Debt and Short-Term Borrowings

9 Months Ended

Sep. 30, 2011

Long-Term Debt and Short-Term Borrowings

Long-Term Debt and Short-Term Borrowings

NOTE 7.  Long-Term Debt and Short-Term Borrowings

As discussed in Note 10 in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K), 3M’s Convertible Notes were originally issued on November 15, 2002, with partial redemptions in 2005 and 2007. In September 2011, 3M redeemed all remaining Convertible Notes, which were otherwise due in 2032. As a result, in September 2011, 3M paid out cash of approximately $227 million (with no gain or loss on extinguishment). Of this amount, $24 million was classified as cash flows from operating activities (for accretion/accreted interest on debt), with the remainder classified as cash flows from financing activities (repayment of debt).

The Company has a “well-known seasoned issuer” shelf registration statement, effective August 5, 2011, which registers an indeterminate amount of debt or equity securities for future sales. The Company intends to use the proceeds from future securities sales off this shelf for general corporate purposes. This replaced 3M’s previous shelf registration dated February 17, 2009. In September 2011, in connection with the August 5, 2011 “well-known seasoned issuer” registration statement, 3M established a $3 billion medium-term notes program (Series F), from which 3M issued a five-year $1 billion fixed rate note with a coupon rate of 1.375%. Proceeds will be used for general corporate purposes, including repayment of $800 million (principal amount) of medium-term notes due in November 2011.

In August 2011, 3M entered into a $1.5 billion, five-year multi-currency revolving credit agreement, which replaced the existing agreement that was due to expire in April 2012. This credit agreement includes a provision under which 3M may request an increase of up to $500 million, bringing the total facility up to $2 billion (at the lenders’ discretion). This facility was undrawn at September 30, 2011. Also, in August 2011, 3M entered into a $200 million, one-year letter of credit agreement with HSBC Bank USA. This agreement replaced the sublimit for letters of credit that was previously encompassed in the $1.5 billion five-year facility. As of September 30, 2011, 3M letters of credit issued under this $200 million facility totaled $121 million. An additional $102 million in U.S. letters of credit was outstanding with other banking partners. These letters of credit are utilized in connection with normal business activities. Under both the $1.5 billion and $200 million credit agreements, the Company is required to maintain its EBITDA to Interest Ratio as of the end of each fiscal quarter at not less than 3.0 to 1. This is calculated (as defined in the agreement) as the ratio of consolidated total EBITDA for the four consecutive quarters then ended to total interest expense on all funded debt for the same period. At September 30, 2011, this ratio was approximately 38 to 1.

As disclosed in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K), in the fourth quarter of 2010, the Company entered into a 100.5 million Canadian Dollar loan, with four equal installments due in April 2011, July 2011, October 2011 and January 2012. During March 2011, this loan agreement was amended to increase the loan amount to 201 million Canadian Dollars and to allow for repayment of the total loan in July 2012, instead of in four equal installments. However, 3M has the option to repay the principal amount of this loan before July 2012. All other terms and conditions of the loan agreement remain in full force. In the third quarter of 2011, 3M repaid principal of 50.25 million Canadian Dollars, resulting in a remaining principal amount of 150.75 million Canadian Dollars as of September 30, 2011.

As also disclosed in 3M’s Current Report on Form 8-K dated May 26, 2011 (which updated 3M’s 2010 Annual Report on Form 10-K), during the first quarter of 2010, the Company entered into a floating rate note payable of 17.4 billion Japanese Yen (approximately $188 million based on exchange rates at that time) in connection with the purchase of additional interest in the Company’s Sumitomo 3M Limited subsidiary as discussed in Note 4. This note was due in three equal installments of 5.8 billion Japanese Yen, with one installment paid on September 30, 2010, one installment paid on March 30, 2011, and the final installment paid on September 30, 2011. Interest accrued on the note based on the three-month Tokyo Interbank Offered Rate (TIBOR) plus 40 basis points.

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Goodwill and Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2011

Goodwill and Intangible Assets

Goodwill

(Millions)	Dec. 31, 2010 Balance		Acquisition activity			Translation and other		Sept. 30, 2011 Balance
Industrial and Transportation	$	1,783	$	209		$	25	$	2,017
Health Care	1,506		(1		)	28		1,533
Display and Graphics	994		4			3		1,001
Consumer and Office	187		13			5		205
Safety, Security and Protection Services	1,670		(3		)	21		1,688
Electro and Communications	680		6			10		696
Total Company	$	6,820	$	228		$	92	$	7,140

Acquired Intangible Assets

(Millions)	Sept. 30, 2011			Dec. 31, 2010
Patents	$	568		$	551
Other amortizable intangible assets (primarily tradenames and customer related intangibles)	2,329			2,016
Total gross carrying amount	$	2,897		$	2,567
Accumulated amortization — patents	(371		)	(345		)
Accumulated amortization — other	(700		)	(527		)
Total accumulated amortization	$	(1,071	)	$	(872	)
Total finite-lived intangible assets — net	$	1,826		$	1,695
Non-amortizable intangible assets (tradenames)	126			125
Total intangible assets — net	$	1,952		$	1,820

Schedule of amortization expense for acquired intangible assets

	Three months ended September 30,				Nine months ended September 30,
(Millions)	2011		2010		2011		2010
Amortization expense	$	59	$	44	$	176	$	130

Schedule of expected amortization expense for acquired amortizable intangible assets

Millions)	Last Quarter 2011		2012		2013		2014		2015		2016		After 2016
Amortization expense	$	59	$	223	$	212	$	189	$	177	$	164	$	802

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Supplemental Equity and Comprehensive Income Information (Details 6) In Millions, unless otherwise specified	3 Months Ended					9 Months Ended		6 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Jun. 30, 2010 USD ($)	Mar. 31, 2010 USD ($)	Mar. 31, 2010 JPY (¥)	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Dec. 31, 2009 Sumitomo 3M Limited USD ($)	Mar. 31, 2010 Sumitomo 3M Limited
Transactions with Sumitomo 3M
3M's effective ownership before transaction (as a percent)								75.00%	71.50%
3M's effective ownership after transaction (as a percent)								71.50%	75.00%
Increase in noncontrolling interest								$ 81
Cash paid to acquire additional shares				63	5,800
Note payable issued to Sumitomo Electric Industries				188	17,400
Purchase of subsidiary shares including other transfers from noncontrolling interest				278
Net income attributable to 3M	1,088	1,106				3,329	3,157
Transfer from noncontrolling interest			24	22			46
Change in 3M Company shareholders' equity from net income attributable to 3M and transfers from noncontrolling interest							$ 3,203

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Business Segments (Tables)

9 Months Ended

Sep. 30, 2011

Business Segments

Business Segment Information

Business Segment Information	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Net Sales
Industrial and Transportation	$	2,580		$	2,171		$	7,671		$	6,328
Health Care	1,246			1,092			3,770			3,316
Display and Graphics	935			1,065			2,851			2,981
Consumer and Office	1,096			1,026			3,134			2,892
Safety, Security and Protection Services	954			811			2,894			2,468
Electro and Communications	838			803			2,538			2,254
Corporate and Unallocated	1			4			9			12
Elimination of Dual Credit	(119		)	(98		)	(345		)	(298		)
Total Company	$	7,531		$	6,874		$	22,522		$	19,953
Operating Income
Industrial and Transportation	$	525		$	434		$	1,585		$	1,340
Health Care	367			325			1,100			1,015
Display and Graphics	179			282			631			802
Consumer and Office	244			235			661			665
Safety, Security and Protection Services	202			164			643			544
Electro and Communications	181			183			559			506
Corporate and Unallocated	(91		)	(26		)	(289		)	(190		)
Elimination of Dual Credit	(26		)	(21		)	(76		)	(65		)
Total Company	$	1,581		$	1,576		$	4,814		$	4,617

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Significant Accounting Policies

9 Months Ended

Sep. 30, 2011

Significant Accounting Policies

Significant Accounting Policies

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:

Earnings Per Share Computations

	Three months ended September 30,				Nine months ended  September 30,
(Amounts in millions, except per share amounts)	2011		2010		2011		2010
Numerator:
Net income attributable to 3M	$	1,088	$	1,106	$	3,329	$	3,157
Denominator:
Denominator for weighted average 3M common shares outstanding – basic	707.7		714.0		710.9		713.4
Dilution associated with the Company’s stock-based compensation plans	7.8		11.2		11.9		11.4
Denominator for weighted average 3M common shares outstanding – diluted	715.5		725.2		722.8		724.8
Earnings per share attributable to 3M common shareholders – basic	$	1.54	$	1.55	$	4.68	$	4.42
Earnings per share attributable to 3M common shareholders – diluted	$	1.52	$	1.53	$	4.61	$	4.36

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.

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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Supplemental Equity and Comprehensive Income Information (Tables)

9 Months Ended

Sep. 30, 2011

Supplemental Equity and Comprehensive Income Information

Consolidated Statement of Changes in Equity

Consolidated Statement of Changes in Equity

3M Company and Subsidiaries

Three months ended September 30, 2011

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at June 30, 2011	$	17,742		$	3,692	$	27,110		$	(10,511	)	$	(2,961	)	$	412
Net income	1,103					1,088									15
Cumulative translation adjustment	(490		)									(507		)	17
Defined benefit pension and post-retirement plans adjustment	77											77			—
Debt and equity securities - unrealized gain (loss)	(2		)									(2		)	—
Cash flow hedging instruments - unrealized gain (loss)	54											54			—
Total comprehensive income	742
Dividends paid	(388		)			(388		)
Stock-based compensation, net of tax impacts	42			42
Reacquired stock	(837		)						(837		)
Issuances pursuant to stock option and benefit plans	111					(26		)	137
Balance at Sept. 30, 2011	$	17,412		$	3,734	$	27,784		$	(11,211	)	$	(3,339	)	$	444

3M Company and Subsidiaries

Nine months ended September 30, 2011

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital			Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at Dec. 31, 2010	$	16,017		$	3,477		$	25,995		$	(10,266	)	$	(3,543	)	$	354
Net income	3,383						3,329									54
Cumulative translation adjustment	(14		)										(34		)	20
Defined benefit pension and post- retirement plans adjustment	207												206			1
Debt and equity securities - unrealized gain (loss)	(5		)										(5		)	—
Cash flow hedging instruments - unrealized gain (loss)	37												37			—
Total comprehensive income	3,608
Dividends paid	(1,171		)				(1,171		)
Business combination allocation to noncontrolling interest	56															56
Purchase and sale of subsidiary shares - net	(42		)	(1		)										(41		)
Stock-based compensation, net of tax impacts	258			258
Reacquired stock	(2,181		)							(2,181		)
Issuances pursuant to stock option and benefit plans	867						(369		)	1,236
Balance at Sept. 30, 2011	$	17,412		$	3,734		$	27,784		$	(11,211	)	$	(3,339	)	$	444

3M Company and Subsidiaries

Three months ended September 30, 2010

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at June 30, 2010	$	14,263		$	3,345	$	24,788		$	(10,146	)	$	(4,016	)	$	292
Net income	1,125					1,106									19
Cumulative translation adjustment	669											651			18
Defined benefit pension and postretirement plans adjustment	48											48			—
Debt and equity securities - unrealized gain (loss)	3											3			—
Cash flow hedging instruments - unrealized gain (loss)	(52		)									(52		)	—
Total comprehensive income	1,793
Dividends paid	(375		)			(375		)
Stock-based compensation, net of tax impacts	45			45
Reacquired stock	(11		)						(11		)
Issuances pursuant to stock option and benefit plans	118					(26		)	144
Balance at Sept. 30, 2010	$	15,833		$	3,390	$	25,493		$	(10,013	)	$	(3,366	)	$	329

3M Company and Subsidiaries

Nine months ended September 30, 2010

				3M Company Shareholders
(Millions)	Total			Common Stock andAdditionalPaid-in Capital		Retained Earnings			Treasury Stock			Accumulated Other Comprehensive Income (Loss)			Non- controlling Interest
Balance at Dec. 31, 2009	$	13,302		$	3,162	$	23,753		$	(10,397	)	$	(3,754	)	$	538
Net income	3,220					3,157									63
Cumulative translation adjustment	216											187			29
Defined benefit pension and postretirement plans adjustment	147											146			1
Debt and equity securities - unrealized gain (loss)	5											5			—
Cash flow hedging instruments - unrealized gain (loss)	11											11			—
Total comprehensive income	3,599
Dividends paid	(1,124		)			(1,124		)
Purchase of subsidiary shares and transfers from noncontrolling interest	(256		)	7								39			(302		)
Stock-based compensation, net of tax impacts	221			221
Reacquired stock	(415		)						(415		)
Issuances pursuant to stock option and benefit plans	506					(293		)	799
Balance at Sept. 30, 2010	$	15,833		$	3,390	$	25,493		$	(10,013	)	$	(3,366	)	$	329

Accumulated Other Comprehensive Income (Loss) Attributable to 3M

Accumulated Other Comprehensive Income (Loss) Attributable to 3M

	Sept. 30,			Dec. 31,
(Millions)	2011			2010
Cumulative translation adjustment	$	340		$	374
Defined benefit pension and postretirement plans adjustment	(3,673		)	(3,879		)
Debt and equity securities, unrealized gain (loss)	(11		)	(6		)
Cash flow hedging instruments, unrealized gain (loss)	5			(32		)
Total accumulated other comprehensive income (loss)	$	(3,339	)	$	(3,543	)

Consolidated Statement of Comprehensive Income (Loss) and Components of Comprehensive Income (Loss) Attributable to 3M

Consolidated Statement of Comprehensive Income (Loss)

	Three months endedSeptember 30,						Nine months endedSeptember 30,
(Millions)	2011			2010			2011			2010
Net income including noncontrolling interest	$	1,103		$	1,125		$	3,383		$	3,220
Other comprehensive income, net of tax:
Cumulative translation adjustment	(490		)	669			(14		)	216
Defined benefit pension and postretirement plans adjustment	77			48			207			147
Debt and equity securities, unrealized gain (loss)	(2		)	3			(5		)	5
Cash flow hedging instruments, unrealized gain (loss)	54			(52		)	37			11
Total other comprehensive income (loss), net of tax	(361		)	668			225			379
Comprehensive income (loss) including noncontrolling interest	742			1,793			3,608			3,599
Comprehensive (income) loss attributable to noncontrolling interest	(32		)	(37		)	(75		)	(93		)
Comprehensive income (loss) attributable to 3M	$	710		$	1,756		$	3,533		$	3,506

Components of Comprehensive Income (Loss) Attributable to 3M

	Three months endedSeptember 30,						Nine months endedSeptember 30,
(Millions)	2011			2010			2011			2010
Net income attributable to 3M	$	1,088		$	1,106		$	3,329		$	3,157
Cumulative translation	(489		)	586			(63		)	185
Tax effect	(18		)	65			29			2
Cumulative translation - net of tax	(507		)	651			(34		)	187
Defined benefit pension and postretirement plans adjustment	120			75			358			231
Tax effect	(43		)	(27		)	(152		)	(85		)
Defined benefit pension and postretirement plans adjustment - net of tax	77			48			206			146
Debt and equity securities, unrealized gain (loss)	(3		)	3			(8		)	7
Tax effect	1			—			3			(2		)
Debt and equity securities, unrealized gain (loss) - net of tax	(2		)	3			(5		)	5
Cash flow hedging instruments, unrealized gain (loss)	85			(84		)	59			16
Tax effect	(31		)	32			(22		)	(5		)
Cash flow hedging instruments, unrealized gain (loss) - net of tax	54			(52		)	37			11
Total comprehensive income (loss) attributable to 3M	$	710		$	1,756		$	3,533		$	3,506

Change in 3M Company shareholders' equity from net income attributable to 3M and transfers from (to) noncontrolling interest

(Millions)	Nine months ended Sept. 30, 2010
Net income attributable to 3M	$	3,157
Transfers from noncontrolling interest	46
Change in 3M Company shareholders’ equity from net income attributable to 3M and transfers from noncontrolling interest	$	3,203

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Pension and Postretirement Benefit Plans (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended
	Sep. 30, 2011	Mar. 31, 2011 LimitedPartner	Jun. 30, 2010 Qualified and Non-qualified Pension Benefits	Sep. 30, 2011 Qualified and Non-qualified Pension Benefits	Sep. 30, 2011 United States Qualified and Non-qualified Pension Benefits	Sep. 30, 2010 United States Qualified and Non-qualified Pension Benefits	Sep. 30, 2011 United States Qualified and Non-qualified Pension Benefits	Sep. 30, 2010 United States Qualified and Non-qualified Pension Benefits	Sep. 30, 2011 International Qualified and Non-qualified Pension Benefits	Sep. 30, 2010 International Qualified and Non-qualified Pension Benefits	Sep. 30, 2011 International Qualified and Non-qualified Pension Benefits	Sep. 30, 2010 International Qualified and Non-qualified Pension Benefits	Sep. 30, 2011 Postretirement Benefits	Sep. 30, 2010 Postretirement Benefits	Sep. 30, 2011 Postretirement Benefits	Sep. 30, 2010 Postretirement Benefits
Net periodic benefit cost (benefit)
Service cost					$ 51	$ 50	$ 154	$ 151	$ 27	$ 28	$ 83	$ 83	$ 16	$ 13	$ 46	$ 41
Interest cost					157	160	470	479	62	62	186	187	23	22	69	66
Expected return on plan assets					(231)	(233)	(695)	(697)	(70)	(71)	(209)	(214)	(20)	(20)	(59)	(62)
Amortization of transition (asset) obligation												1
Amortization of prior service cost (benefit)					2	4	8	10	(3)	(1)	(10)	(3)	(18)	(23)	(54)	(70)
Amortization of net actuarial (gain) loss					83	55	250	165	28	21	84	64	25	21	77	64
Net periodic benefit cost (benefit)					62	36	187	108	44	39	134	118	26	13	79	39
Settlements, curtailments, special termination benefits and other												(22)
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other					62	36	187	108	44	39	134	96	26	13	79	39
Contributions made to the Company's plans				310											63
Expected future employer contributions in next fiscal year, low end of range				500
Expected future employer contributions in next fiscal year, high end of range				600
Curtailment gain			$ 22
Number of additional limited partners of WG Trading Company, in addition to 3M, who objected and appealed the court's order to the United States Court of Appeals for the Second Circuit		6
Percentage of the entity's total fair value investments held with WG Trading Company, maximum (as a percent)	1.00%

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Pension and Postretirement Benefit Plans (Tables)

9 Months Ended

Sep. 30, 2011

Pension and Postretirement Benefit Plans

Components of net periodic benefit cost (benefit)

Benefit Plan Information

	Three months ended September 30,
	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Net periodic benefit cost (benefit)
Service cost	$	51		$	50		$	27		$	28		$	16		$	13
Interest cost	157			160			62			62			23			22
Expected return on plan assets	(231		)	(233		)	(70		)	(71		)	(20		)	(20		)
Amortization of transition (asset) obligation	—			—			—			—			—			—
Amortization of prior service cost (benefit)	2			4			(3		)	(1		)	(18		)	(23		)
Amortization of net actuarial (gain) loss	83			55			28			21			25			21
Net periodic benefit cost (benefit)	$	62		$	36		$	44		$	39		$	26		$	13
Settlements, curtailments, special termination benefits and other	—			—			—			—			—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	62		$	36		$	44		$	39		$	26		$	13

	Nine months ended September 30,
	Qualified and Non-qualified Pension Benefits												Postretirement
	United States						International						Benefits
(Millions)	2011			2010			2011			2010			2011			2010
Net periodic benefit cost (benefit)
Service cost	$	154		$	151		$	83		$	83		$	46		$	41
Interest cost	470			479			186			187			69			66
Expected return on plan assets	(695		)	(697		)	(209		)	(214		)	(59		)	(62		)
Amortization of transition (asset) obligation	—			—			—			1			—			—
Amortization of prior service cost (benefit)	8			10			(10		)	(3		)	(54		)	(70		)
Amortization of net actuarial (gain) loss	250			165			84			64			77			64
Net periodic benefit cost (benefit)	$	187		$	108		$	134		$	118		$	79		$	39
Settlements, curtailments, special termination benefits and other	—			—			—			(22		)	—			—
Net periodic benefit cost (benefit) after settlements, curtailments, special termination benefits and other	$	187		$	108		$	134		$	96		$	79		$	39

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Goodwill and Intangible Assets

9 Months Ended

Sep. 30, 2011

Goodwill and Intangible Assets

Goodwill and Intangible Assets

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

(Millions)	Dec. 31, 2010 Balance		Acquisition activity			Translation and other		Sept. 30, 2011 Balance
Industrial and Transportation	$	1,783	$	209		$	25	$	2,017
Health Care	1,506		(1		)	28		1,533
Display and Graphics	994		4			3		1,001
Consumer and Office	187		13			5		205
Safety, Security and Protection Services	1,670		(3		)	21		1,688
Electro and Communications	680		6			10		696
Total Company	$	6,820	$	228		$	92	$	7,140

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.

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:

(Millions)	Sept. 30, 2011			Dec. 31, 2010
Patents	$	568		$	551
Other amortizable intangible assets (primarily tradenames and customer related intangibles)	2,329			2,016
Total gross carrying amount	$	2,897		$	2,567
Accumulated amortization — patents	(371		)	(345		)
Accumulated amortization — other	(700		)	(527		)
Total accumulated amortization	$	(1,071	)	$	(872	)
Total finite-lived intangible assets — net	$	1,826		$	1,695
Non-amortizable intangible assets (tradenames)	126			125
Total intangible assets — net	$	1,952		$	1,820

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

	Three months ended September 30,				Nine months ended September 30,
(Millions)	2011		2010		2011		2010
Amortization expense	$	59	$	44	$	176	$	130

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

(Millions)	Last Quarter 2011		2012		2013		2014		2015		2016		After 2016
Amortization expense	$	59	$	223	$	212	$	189	$	177	$	164	$	802

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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Stock-Based Compensation

9 Months Ended

Sep. 30, 2011

Stock-Based Compensation

Stock-Based Compensation

NOTE 12. Stock-Based Compensation

The Company’s annual stock option and restricted stock unit grant is made in February to provide a strong and immediate link between the performance of individuals during the preceding year and the size of their annual stock compensation grants. The grant to eligible employees uses the closing stock price on the grant date. Stock options vest over a period from one year to three years with the expiration date at 10 years from date of grant. Accounting rules require recognition of expense under a non-substantive vesting period approach, requiring compensation expense recognition when an employee is eligible to retire. Employees are considered eligible to retire at age 55 and after having completed five years of service. This retiree-eligible population represents 28 percent of the 2011 annual grant stock-based compensation award expense dollars; therefore, higher stock-based compensation expense is recognized in the first quarter. The remaining total shares available for grant under the 2008 Long Term Incentive Plan Program are 21,936,920 as of September 30, 2011.

Amounts recognized in the financial statements with respect to stock-based compensation programs, which include stock options, restricted stock, restricted stock units and the General Employees’ Stock Purchase Plan (GESPP), are provided in the following table. The income tax benefits shown in the table can fluctuate by period due to the amount of employee “disqualifying dispositions” related to Incentive Stock Options (ISOs). The Company last granted ISOs in 2002.

Stock-Based Compensation Expense

	Three months ended						Nine months ended
	September 30,						September 30,
(Millions)	2011			2010			2011			2010
Cost of sales	$	5		$	6		$	25		$	26
Selling, general and administrative expenses	28			45			159			174
Research, development and related expenses	5			6			26			28
Stock-based compensation expenses	$	38		$	57		$	210		$	228
Income tax benefits	$	(12	)	$	(13	)	$	(68	)	$	(68	)
Stock-based compensation expenses, net of tax	$	26		$	44		$	142		$	160

The following table summarizes stock option activity during the nine months ended September 30, 2011:

Stock Option Program

					Remaining	Aggregate
	Number of		Exercise		Contractual	Intrinsic Value
	Options		Price*		Life* (months)	(millions)
Under option —
January 1	70,335,044		$	74.80
Granted
Annual	5,514,500		89.46
Progressive (Reload)	234,639		94.21
Other	5,667		90.42
Exercised	(11,408,114	)	68.55
Canceled	(281,801	)	74.24
September 30	64,399,935		$	77.24	57	$	192
Options exercisable
September 30	52,765,533		$	76.81	47	$	152

*Weighted average

As of September 30, 2011, there was $71 million of compensation expense that has yet to be recognized related to non-vested stock option based awards. This expense is expected to be recognized over the remaining weighted-average vesting period of 1.8 years. The total intrinsic values of stock options exercised were $283 million and $214 million during the nine months ended September 30, 2011 and 2010, respectively. Cash received from options exercised was $782 million and $433 million for the nine months ended September 30, 2011 and 2010, respectively. The Company’s actual tax benefits realized for the tax deductions related to the exercise of employee stock options were $86 million and $63 million for the nine months ended September 30, 2011 and 2010, respectively. Capitalized stock-based compensation amounts were not material at September 30, 2011.

For the primary 2011 annual stock option grant, the weighted average fair value at the date of grant was calculated using the Black-Scholes option-pricing model and the assumptions that follow.

	Annual
Stock Option Assumptions	2011
Exercise price	$	89.47
Risk-free interest rate	2.8		%
Dividend yield	2.6		%
Expected volatility	22.0		%
Expected life (months)	72
Black-Scholes fair value	$	16.10

Expected volatility is a statistical measure of the amount by which a stock price is expected to fluctuate during a period. For the 2011 annual grant date, the Company estimated the expected volatility based upon the average of the most recent one year volatility, the median of the term of the expected life rolling volatility, the median of the most recent term of the expected life volatility of 3M stock, and the implied volatility on the grant date. The expected term assumption is based on the weighted average of historical grants.

The following table summarizes restricted stock and restricted stock unit activity during the nine months ended September 30, 2011:

Restricted Stock and Restricted Stock Units	Number of Awards		Grant Date Fair Value*
Nonvested balance —
As of January 1	5,573,302		$	70.43
Granted
Annual	889,448		89.46
Performance shares	375,146		83.34
Other	335,164		87.55
Vested	(1,277,111	)	72.33
Forfeited	(106,367	)	71.58
As of September 30	5,789,582		$	74.74

*Weighted average

As of September 30, 2011, there was $121 million of compensation expense that has yet to be recognized related to non-vested restricted stock and restricted stock units. This expense is expected to be recognized over the remaining weighted-average vesting period of 2.0 years. The total grant date fair value of restricted stock and restricted stock units that vested during the nine months ended September 30, 2011 and 2010 was $92 million and $60 million, respectively. The Company’s actual tax benefits realized for the tax deductions related to the vesting of restricted stock and restricted stock units was $42 million and $20 million for the nine months ended September 30, 2011 and 2010, respectively.

Restricted stock units granted under the 3M 2008 Long-Term Incentive Plan generally vest three years following the grant date assuming continued employment. The one-time “buyout” restricted stock unit grant in 2007 vests at the end of five years. Restricted stock unit grants issued in 2008 and prior did not accrue dividends during the vesting period. Beginning in 2009, dividend equivalents equal to the dividends payable on the same number of shares of 3M common stock accrue on these restricted stock units during the vesting period, although no dividend equivalents are paid on any of these restricted stock units that are forfeited prior to the vesting date. Dividends are paid out in cash at the vest date on restricted stock units, except for performance shares which do not earn dividends. Since the rights to dividends are forfeitable, there is no impact on basic earnings per share calculations. Weighted average restricted stock unit shares outstanding are included in the computation of diluted earnings per share.

In addition, the Company issues cash settled Restricted Stock Units and Stock Appreciation Rights in certain countries. These grants do not result in the issuance of Common Stock and are considered immaterial by the Company.

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Commitments and Contingencies (Details 3) In Millions, unless otherwise specified	9 Months Ended				9 Months Ended
	Sep. 30, 2011 Commercial Litigation - Cogent Inc. Delaware Court of Chancery Claim	Sep. 30, 2011 Commercial Litigation - Cogent Inc. Los Angeles Superior Court Claim	Sep. 30, 2011 Commercial Litigation - Avery Dennison Patent	Sep. 30, 2011 Commercial Litigation - Meda AB USD ($)	Sep. 30, 2011 Commercial Litigation - Acolyte Biomedica Ltd. GBP (£)
Loss contingencies
Damages sought by plaintiff					£ 40
Number of Avery patents for which 3M seeks a declaratory judgment			2
Number of new lawsuits filed	3	6
Number of Cogent, Inc. shares held by subsidiary shareholders that have asserted appraisal rights	5.8
The estimated minimum amount the lawsuit seeks to recover				$ 200

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Stock-Based Compensation (Details 4) (Restricted Stock and Restricted Stock Units, USD $) In Millions, except Share data, unless otherwise specified	9 Months Ended
	Sep. 30, 2011 Y	Sep. 30, 2010	Dec. 31, 2007 Y
Restricted Stock and Restricted Stock Units
Restricted Stock and Restricted Stock Unit Activity:
Number of Awards - Nonvested - Beginning balance	5,573,302
Number of Awards - Granted - Annual	889,448
Number of Awards - Granted - Performance shares	375,146
Number of Awards - Granted - Other	335,164
Number of Awards - Vested	(1,277,111)
Number of Awards - Forfeited	(106,367)
Number of Awards - Nonvested - Ending balance	5,789,582
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures
Weighted Average Grant Date Fair Value - Nonvested - Beginning balance	$ 70.43
Weighted Average Grant Date Fair Value - Annual	$ 89.46
Weighted Average Grant Date Fair Value - Performance Shares	$ 83.34
Weighted Average Grant Date Fair Value - Other	$ 87.55
Weighted Average Grant Date Fair Value - Vested	$ 72.33
Weighted Average Grant Date Fair Value - Forfeited	$ 71.58
Weighted Average Grant Date Fair Value - Nonvested - Ending balance	$ 74.74
Compensation expense yet to be recognized for restricted stock and restricted stock units	$ 121
Weighted average life for remaining vesting period of restricted stock and restricted stock units (in years)	2.0
Vesting period, generally (in years)	3
Vesting period of "buyout" grant of restricted stock units (in years)			5
Fair value of restricted stock and restricted stock units that vested	92	60
Tax benefit realized from vesting of restricted stock and restricted stock units	$ 42	$ 20

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Supplemental Equity and Comprehensive Income Information (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Increase (decrease) in equity
Balance at the beginning of the period	$ 17,742	$ 14,263	$ 16,017	$ 13,302
Net income	1,103	1,125	3,383	3,220
Cumulative translation adjustment	(490)	669	(14)	216
Defined benefit pension and postretirement plans adjustment	77	48	207	147
Debt and equity securities - unrealized gain (loss)	(2)	3	(5)	5
Cash flow hedging instruments - unrealized gain (loss)	54	(52)	37	11
Total comprehensive income	742	1,793	3,608	3,599
Dividends paid	(388)	(375)	(1,171)	(1,124)
Business combination allocation to noncontrolling interest			56
Purchase and sale of subsidiary shares - net			(42)
Purchase of subsidiary shares and transfers from noncontrolling interest				(256)
Stock-based compensation, net of tax impacts	42	45	258	221
Reacquired stock	(837)	(11)	(2,181)	(415)
Issuances pursuant to stock option and benefit plans	111	118	867	506
Balance at the end of the period	17,412	15,833	17,412	15,833
Common Stock and Additional Paid-in Capital
Increase (decrease) in equity
Balance at the beginning of the period	3,692	3,345	3,477	3,162
Purchase and sale of subsidiary shares - net			(1)
Purchase of subsidiary shares and transfers from noncontrolling interest				7
Stock-based compensation, net of tax impacts	42	45	258	221
Balance at the end of the period	3,734	3,390	3,734	3,390
Retained Earnings
Increase (decrease) in equity
Balance at the beginning of the period	27,110	24,788	25,995	23,753
Net income	1,088	1,106	3,329	3,157
Dividends paid	(388)	(375)	(1,171)	(1,124)
Issuances pursuant to stock option and benefit plans	(26)	(26)	(369)	(293)
Balance at the end of the period	27,784	25,493	27,784	25,493
Treasury Stock
Increase (decrease) in equity
Balance at the beginning of the period	(10,511)	(10,146)	(10,266)	(10,397)
Reacquired stock	(837)	(11)	(2,181)	(415)
Issuances pursuant to stock option and benefit plans	137	144	1,236	799
Balance at the end of the period	(11,211)	(10,013)	(11,211)	(10,013)
Accumulated Other Comprehensive Income (Loss)
Increase (decrease) in equity
Balance at the beginning of the period	(2,961)	(4,016)	(3,543)	(3,754)
Cumulative translation adjustment	(507)	651	(34)	187
Defined benefit pension and postretirement plans adjustment	77	48	206	146
Debt and equity securities - unrealized gain (loss)	(2)	3	(5)	5
Cash flow hedging instruments - unrealized gain (loss)	54	(52)	37	11
Purchase of subsidiary shares and transfers from noncontrolling interest				39
Balance at the end of the period	(3,339)	(3,366)	(3,339)	(3,366)
Noncontrolling Interest
Increase (decrease) in equity
Balance at the beginning of the period	412	292	354	538
Net income	15	19	54	63
Cumulative translation adjustment	17	18	20	29
Defined benefit pension and postretirement plans adjustment			1	1
Business combination allocation to noncontrolling interest			56
Purchase and sale of subsidiary shares - net			(41)
Purchase of subsidiary shares and transfers from noncontrolling interest				(302)
Balance at the end of the period	$ 444	$ 329	$ 444	$ 329

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Acquisitions (Tables)

9 Months Ended

Sep. 30, 2011

Acquisitions

Allocation of purchase price

	First Nine Months 2011 Acquisition Activity
(Millions) Asset (Liability)	Winterthur Technologie AG			Other Acquisitions			Total
Accounts receivable	$	43		$	40		$	83
Inventory	76			27			103
Other current assets	6			3			9
Property, plant, and equipment	73			81			154
Purchased finite-lived intangible assets	226			58			284
Purchased goodwill	152			76			228
Accounts payable and other liabilities, net of other assets	(76		)	(30		)	(106		)
Interest bearing debt	(79		)	(7		)	(86		)
Deferred tax asset/(liability)	(60		)	(12		)	(72		)
Net assets acquired	$	361		$	236		$	597
Noncontrolling interest	(56		)	—			(56		)
Net assets acquired excluding noncontrolling interest	$	305		$	236		$	541
Supplemental information:
Cash paid	$	327		$	240		$	567
Less: Cash acquired	32			4			36
Cash paid, net of cash acquired	$	295		$	236		$	531
Non-cash	10			—			10
Net assets acquired excluding noncontrolling interest	$	305		$	236		$	541

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Consolidated Balance Sheet (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 3,376	$ 3,377
Marketable securities - current	1,486	1,101
Accounts receivable - net	4,259	3,615
Inventories
Finished goods	1,652	1,476
Work in process	1,088	950
Raw materials and supplies	864	729
Total inventories	3,604	3,155
Other current assets	944	967
Total current assets	13,669	12,215
Marketable securities - non-current	443	540
Investments	162	146
Property, plant and equipment	21,038	20,253
Less: Accumulated depreciation	(13,529)	(12,974)
Property, plant and equipment - net	7,509	7,279
Goodwill	7,140	6,820
Intangible assets - net	1,952	1,820
Prepaid pension benefits	87	74
Other assets	1,153	1,262
Total assets	32,115	30,156
Current liabilities
Short-term borrowings and current portion of long-term debt	1,204	1,269
Accounts payable	1,689	1,662
Accrued payroll	654	778
Accrued income taxes	421	358
Other current liabilities	2,197	2,022
Total current liabilities	6,165	6,089
Long-term debt	4,955	4,183
Pension and postretirement benefits	1,704	2,013
Other liabilities	1,879	1,854
Total liabilities	14,703	14,139
Commitments and contingencies (Note 11)
3M Company shareholders' equity:
Common stock par value, $.01 par value, 944,033,056 shares issued	9	9
Additional paid-in capital	3,725	3,468
Retained earnings	27,784	25,995
Treasury stock, at cost: 243,188,375 shares at Sept. 30, 2011; 232,055,448 shares at Dec. 31, 2010	(11,211)	(10,266)
Accumulated other comprehensive income (loss)	(3,339)	(3,543)
Total 3M Company shareholders' equity	16,968	15,663
Noncontrolling interest	444	354
Total equity	17,412	16,017
Total liabilities and equity	$ 32,115	$ 30,156

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Supplemental Equity and Comprehensive Income Information (Details 3) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Consolidated Statement of Comprehensive Income (Loss)
Net income including noncontrolling interest	$ 1,103	$ 1,125	$ 3,383	$ 3,220
Other comprehensive income, net of tax:
Cumulative translation adjustment	(490)	669	(14)	216
Defined benefit pension and postretirement plans adjustment	77	48	207	147
Debt and equity securities, unrealized gain (loss)	(2)	3	(5)	5
Cash flow hedging instruments, unrealized gain (loss)	54	(52)	37	11
Total other comprehensive income (loss), net of tax	(361)	668	225	379
Comprehensive income (loss) including noncontrolling interest	742	1,793	3,608	3,599
Comprehensive (income) loss attributable to noncontrolling interest	(32)	(37)	(75)	(93)
Comprehensive income (loss) attributable to 3M	$ 710	$ 1,756	$ 3,533	$ 3,506

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Derivatives (Details 5) (USD $) In Millions, unless otherwise specified	3 Months Ended	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2011 Y Acquistion CounterParties Segment	Dec. 31, 2010
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Assets	$ 114	$ 114	$ 77
Fair Value of Derivative Instruments, Liabilities	46	46	87
Year-on-year currency effects, including hedging impact	51	131
Year-on-year derivative and other transaction gains and (losses) impact	18	(8)
Primary derivative counterparties		2
Foreign currency forward/option contracts | Derivatives designated as hedging instruments | Other current assets
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Assets	65	65	26
Foreign currency forward/option contracts | Derivatives designated as hedging instruments | Other current liabilities
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Liabilities	31	31	48
Commodity price swap contracts | Derivatives designated as hedging instruments | Other current liabilities
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Liabilities	4	4	5
Interest rate swap contracts | Derivatives designated as hedging instruments | Other assets
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Assets	31	31	39
Derivatives designated as hedging instruments
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Assets	96	96	65
Fair Value of Derivative Instruments, Liabilities	35	35	53
Foreign currency forward/option contracts | Derivatives not designated as hedging instruments | Other current assets
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Assets	18	18	12
Foreign currency forward/option contracts | Derivatives not designated as hedging instruments | Other current liabilities
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Liabilities	11	11	34
Derivatives not designated as hedging instruments
Location and Fair Value Amount of Derivative Instruments
Fair Value of Derivative Instruments, Assets	18	18	12
Fair Value of Derivative Instruments, Liabilities	$ 11	$ 11	$ 34

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Stock-Based Compensation (Details 2) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 38	$ 57	$ 210	$ 228
Income tax benefits	(12)	(13)	(68)	(68)
Stock-based compensation expenses, net of tax	26	44	142	160
Cost of Sales
Amounts recognized in the financial statements
Stock-based compensation programs expense	5	6	25	26
Selling, general and administrative expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	28	45	159	174
Research, development and related expenses
Amounts recognized in the financial statements
Stock-based compensation programs expense	$ 5	$ 6	$ 26	$ 28

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Derivatives (Details) (USD $)			3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended			3 Months Ended	9 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2011 Foreign currency forward/option contracts Cash flow hedge	Sep. 30, 2010 Foreign currency forward/option contracts Cash flow hedge	Sep. 30, 2011 Foreign currency forward/option contracts Cash flow hedge	Sep. 30, 2010 Foreign currency forward/option contracts Cash flow hedge	Sep. 30, 2011 Foreign currency forward/option contracts Cash flow hedge Cost of Sales	Sep. 30, 2010 Foreign currency forward/option contracts Cash flow hedge Cost of Sales	Sep. 30, 2011 Foreign currency forward/option contracts Cash flow hedge Cost of Sales	Sep. 30, 2010 Foreign currency forward/option contracts Cash flow hedge Cost of Sales	Sep. 30, 2011 Foreign currency forward contracts Cash flow hedge	Sep. 30, 2010 Foreign currency forward contracts Cash flow hedge	Sep. 30, 2011 Foreign currency forward contracts Cash flow hedge	Sep. 30, 2010 Foreign currency forward contracts Cash flow hedge	Sep. 30, 2011 Foreign currency forward contracts Cash flow hedge Interest expense	Sep. 30, 2010 Foreign currency forward contracts Cash flow hedge Interest expense	Sep. 30, 2011 Foreign currency forward contracts Cash flow hedge Interest expense	Sep. 30, 2010 Foreign currency forward contracts Cash flow hedge Interest expense	Sep. 30, 2011 Commodity price swap contracts Cash flow hedge	Sep. 30, 2010 Commodity price swap contracts Cash flow hedge	Sep. 30, 2011 Commodity price swap contracts Cash flow hedge	Sep. 30, 2010 Commodity price swap contracts Cash flow hedge	Sep. 30, 2010 Commodity price swap contracts Cash flow hedge Cost of Sales	Sep. 30, 2011 Commodity price swap contracts Cash flow hedge Cost of Sales	Sep. 30, 2010 Commodity price swap contracts Cash flow hedge Cost of Sales	Sep. 30, 2011 Forecasted debt issuance contracts Cash flow hedge	Sep. 30, 2011 Interest rate swap contracts Cash flow hedge	Sep. 30, 2011 Interest rate swap contracts Cash flow hedge	Sep. 30, 2011 Cash flow hedge	Sep. 30, 2010 Cash flow hedge	Sep. 30, 2011 Cash flow hedge	Sep. 30, 2010 Cash flow hedge
Derivatives gain (loss)
Maximum length of time hedged (in months)					12M																12M
Maximum length of time hedged (in years)																										5Y
Dollar equivalent gross notional amount, foreign exchange forward and option contracts designated as cash flow hedges			$ 4,200,000,000		$ 4,200,000,000
Dollar equivalent gross notional amount, natural gas commodity price swaps designated as cash flow hedges																			31,000,000		31,000,000
Dollar equivalent gross notional amount, forecasted debt issuance contracts designated as cash flow hedges																										400,000,000
Pretax Gain (Loss) Recognized in Other Comprehensive Income on Effective portion of Derivative			49,000,000	(76,000,000)	(12,000,000)	(25,000,000)					(56,000,000)	108,000,000	(55,000,000)	41,000,000					2,000,000	(6,000,000)		(13,000,000)					(7,000,000)	(7,000,000)	(12,000,000)	26,000,000	(74,000,000)	3,000,000
Pretax Gain (Loss) Recognized in Income on Effective Portion of Derivative as a Result of Reclassification from Accumulated Other Comprehensive Income							(41,000,000)	5,000,000	(75,000,000)	(48,000,000)					(56,000,000)	108,000,000	(54,000,000)	41,000,000					(3,000,000)	(4,000,000)	(6,000,000)				(97,000,000)	110,000,000	(133,000,000)	(13,000,000)
Accumulated other comprehensive income (loss), unrealized gain (loss) on cash flow hedges	$ 5,000,000	$ (32,000,000)																									$ (4,000,000)	$ (4,000,000)	$ 5,000,000		$ 5,000,000
The time period estimated for the anticipated transfer of gains (losses), net from accumulated other comprehensive income into earnings (in months)																												5Y			12M

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Derivatives (Details 2) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended		9 Months Ended		1 Months Ended				1 Months Ended	12 Months Ended
	Sep. 30, 2011 Interest rate swap contracts Derivatives designated as hedging instruments Fair value hedges Interest expense USD ($)	Sep. 30, 2010 Interest rate swap contracts Derivatives designated as hedging instruments Fair value hedges Interest expense USD ($)	Sep. 30, 2011 Interest rate swap contracts Derivatives designated as hedging instruments Fair value hedges Interest expense USD ($)	Sep. 30, 2010 Interest rate swap contracts Derivatives designated as hedging instruments Fair value hedges Interest expense USD ($)	Sep. 30, 2011 Derivatives designated as hedging instruments Fair value hedges USD ($)	Sep. 30, 2010 Derivatives designated as hedging instruments Fair value hedges USD ($)	Sep. 30, 2011 Derivatives designated as hedging instruments Fair value hedges USD ($)	Sep. 30, 2010 Derivatives designated as hedging instruments Fair value hedges USD ($)	Oct. 31, 2008 Floating rate Medium-term note due November 2011 Interest rate swap contracts USD ($) Y Derivative	Jul. 31, 2007 Fixed rate Eurobond Due 2014 Interest rate swap contracts EUR (€) Y	Aug. 31, 2010 Fixed rate Eurobond Due 2014 Interest rate swap contracts EUR (€)	Sep. 30, 2011 Interest rate swap contracts Fair value hedges USD ($)	Jul. 31, 2007 Net Investment Hedges EUR (€) Y	Dec. 31, 2007 Net Investment Hedges EUR (€) Y
Derivatives in Fair Value Hedging Relationships or Net Investment Hedges
Notional amount, interest rate swaps designated as fair value hedges									$ 800	€ 400		$ 1,100
Term of debt instrument (in years)									3	7			7	7
Face amount									800.0	750.0			750.0	275.0
Termination of notional amount of fixed-to-floating interest rate swap											150
Gain (loss) on termination of fixed-to-floating interest rate swap will be amortized over this debt's remaining life											18
Number of fixed-to-floating interest rate swaps									2
Interest rate, stated percentage (as a percent)									4.50%
Gain (Loss) on Derivative Recognized in income	1	(16)	(7)	(6)	1	(16)	(7)	(6)
Gain (Loss) on Hedged Item Recognized in Income	$ (1)	$ 16	$ 7	$ 6	$ (1)	$ 16	$ 7	$ 6

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Commitments and Contingencies (Details 2) (USD $)	9 Months Ended
	Sep. 30, 2011 Claimant Claim Y
Employment Litigation - Whitaker lawsuit
Loss contingencies
Current employees filing lawsuit	1
Former employees filing lawsuit	1
Threshold age for members of class action (in years)	46
Punitive damages, statutory limit per claimant	$ 8,500
Number of additional named plaintiffs	4
Number of claims dismissed and settled	1
Employment Litigation - Garcia lawsuit
Loss contingencies
Current employees filing lawsuit	1
Former employees filing lawsuit	5
Threshold age for members of class action (in years)	46
Total number of named plaintiffs	6
Approximate number of current or former employees who have signed "opt-in" forms	130
Upper end of salary grade level involved in lawsuit	18
Threshold age for federal protection from age discrimination	40
EEOC age-discrimination charges
Loss contingencies
Current employees filing lawsuit	1
Former employees filing lawsuit	6
Number of claimants not involved in Garcia lawsuit	1
EEOC age-discrimination charges | Minnesota, Texas and California
Loss contingencies
Former employees filing lawsuit	3
EEOC age-discrimination charges | Minnesota
Loss contingencies
Former employees filing lawsuit	2

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Supplemental Equity and Comprehensive Income Information (Details 4) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Components of Comprehensive Income (Loss) Attributable to 3M
Net income attributable to 3M	$ 1,088	$ 1,106	$ 3,329	$ 3,157
Cumulative translation	(489)	586	(63)	185
Tax effect	(18)	65	29	2
Cumulative translation - net of tax	(507)	651	(34)	187
Defined benefit pension and postretirement plans adjustment	120	75	358	231
Tax effect	(43)	(27)	(152)	(85)
Defined benefit pension and postretirement plans adjustment - net of tax	77	48	206	146
Debt and equity securities, unrealized gain (loss)	(3)	3	(8)	7
Tax effect	1		3	(2)
Debt and equity securities, unrealized gain (loss) - net of tax	(2)	3	(5)	5
Cash flow hedging instruments, unrealized gain (loss)	85	(84)	59	16
Tax effect	(31)	32	(22)	(5)
Cash flow hedging instruments, unrealized gain (loss) - net of tax	54	(52)	37	11
Total Comprehensive income (loss) attributable to 3M	710	1,756	3,533	3,506
Reclassification to earnings from accumulated other comprehensive income including noncontrolling interest that related to pension and postretirement expense in the income statement, before tax	117	77	355	231
Reclassification to earnings from accumulated other comprehensive income including noncontrolling interest that related to pension and postretirement expense in the income statement, after tax	$ 77	$ 48	$ 207	$ 147