$MMM
3M CO Stock $mmm

$mmm Overview Financials Valuation SEC Filings Company Website

2010 Q4 Form 8-K Financial Statement

#000110465911031722 Filed on May 26, 2011

Income Statement

Concept	2010 Q4	2010 Q3	2010 Q1
Revenue	$6.709B	$6.874B	$6.348B
YoY Change	9.59%	11.0%	24.74%
Cost Of Revenue	$3.575B	$3.583B	$3.238B
YoY Change	12.1%	12.99%	16.81%
Gross Profit	$3.134B	$3.291B	$3.110B
YoY Change	6.85%	8.9%	34.23%
Gross Profit Margin	46.71%	47.88%	48.99%
Selling, General & Admin	$1.445B	$1.361B	$1.323B
YoY Change	14.23%	12.57%	11.08%
% of Gross Profit	46.11%	41.36%	42.54%
Research & Development	$388.0M	$354.0M	$342.0M
YoY Change	19.02%	5.67%	5.88%
% of Gross Profit	12.38%	10.76%	11.0%
Depreciation & Amortization	$283.0M	$278.0M	$287.0M
YoY Change	-5.03%	-4.14%	5.9%
% of Gross Profit	9.03%	8.45%	9.23%
Operating Expenses	$1.833B	$1.361B	$1.323B
YoY Change	15.21%	12.57%	11.08%
Operating Profit	$1.301B	$1.576B	$1.445B
YoY Change	-3.06%	6.63%	79.95%
Interest Expense	-$39.00M	-$40.00M	-$42.00M
YoY Change	-9.3%	-14.89%	-4.55%
% of Operating Profit	-3.0%	-2.54%	-2.91%
Other Income/Expense, Net		-$40.00M	-$42.00M
YoY Change		-14.89%	-4.55%
Pretax Income	$1.262B	$1.536B	$1.403B
YoY Change	-2.85%	7.34%	84.85%
Income Tax	$319.0M	$411.0M	$448.0M
% Of Pretax Income	25.28%	26.76%	31.93%
Net Earnings	$928.0M	$1.106B	$930.0M
YoY Change	-0.75%	15.57%	79.54%
Net Earnings / Revenue	13.83%	16.09%	14.65%
Basic Earnings Per Share	$1.30	$1.55	$1.31
Diluted Earnings Per Share	$1.28	$1.53	$1.29
COMMON SHARES
Basic Shares Outstanding		714.0M shares	711.8M shares
Diluted Shares Outstanding		725.2M shares	723.5M shares

Balance Sheet

Concept	2010 Q4	2010 Q3	2010 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments	$5.018B	$6.296B	$4.607B
YoY Change	8.87%	59.96%	145.18%
Cash & Equivalents	$3.377B	$4.466B	$2.848B
Short-Term Investments	$1.641B	$1.830B	$1.759B
Other Short-Term Assets	$967.0M	$1.111B	$1.132B
YoY Change	-13.81%	12.56%	12.19%
Inventory	$3.155B	$3.215B	$2.798B
Prepaid Expenses
Receivables	$3.615B	$3.869B	$3.569B
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$12.22B	$14.05B	$12.11B
YoY Change	13.15%	25.47%	40.0%
LONG-TERM ASSETS
Property, Plant & Equipment	$7.279B	$6.915B	$6.859B
YoY Change	3.99%	-0.12%	1.71%
Goodwill	$6.820B	$5.899B	$5.734B
YoY Change	16.94%	0.65%
Intangibles	$1.820B	$1.279B	$1.287B
YoY Change	35.62%	-8.12%
Long-Term Investments	$686.0M	$579.0M	$698.0M
YoY Change	-26.08%	-7.36%	94.97%
Other Assets	$1.262B	$1.241B	$1.255B
YoY Change	-1.02%	-22.19%	-24.12%
Total Long-Term Assets	$17.94B	$16.02B	$15.92B
YoY Change	9.03%	-2.56%	1.43%
TOTAL ASSETS
Total Short-Term Assets	$12.22B	$14.05B	$12.11B
Total Long-Term Assets	$17.94B	$16.02B	$15.92B
Total Assets	$30.16B	$30.07B	$28.02B
YoY Change	10.66%	8.8%	15.14%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$1.662B	$1.649B	$1.582B
YoY Change	14.38%	17.45%	40.75%
Accrued Expenses	$778.0M	$738.0M	$498.0M
YoY Change	14.41%	7.74%	-11.7%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change
Long-Term Debt Due	$1.269B	$653.0M	$698.0M
YoY Change	107.01%	-29.1%	-26.22%
Total Short-Term Liabilities	$6.089B	$5.395B	$5.148B
YoY Change	24.34%	-6.43%	8.88%
LONG-TERM LIABILITIES
Long-Term Debt	$4.183B	$5.105B	$5.080B
YoY Change	-17.93%	-1.9%	-0.16%
Other Long-Term Liabilities	$1.854B	$1.879B	$1.779B
YoY Change	7.35%	11.45%	-59.39%
Total Long-Term Liabilities	$6.037B	$6.984B	$6.859B
YoY Change	-11.53%	1.36%	-27.56%
TOTAL LIABILITIES
Total Short-Term Liabilities	$6.089B	$5.395B	$5.148B
Total Long-Term Liabilities	$6.037B	$6.984B	$6.859B
Total Liabilities	$14.14B	$14.23B	$14.17B
YoY Change	1.37%	-3.28%	-2.95%
SHAREHOLDERS EQUITY
Retained Earnings	$26.00B	$25.49B	$24.23B
YoY Change	9.44%	9.64%
Common Stock	$3.477B	$3.390B	$3.269B
YoY Change	9.96%	9.43%
Preferred Stock
YoY Change
Treasury Stock (at cost)	$10.27B	$10.01B	$10.19B
YoY Change	-1.26%	-5.73%
Treasury Stock Shares	232.1M shares	229.2M shares	231.0M shares
Shareholders Equity	$15.66B	$15.50B	$13.57B
YoY Change
Total Liabilities & Shareholders Equity	$30.16B	$30.07B	$28.02B
YoY Change	10.66%	8.8%	15.14%

Cashflow Statement

Concept	2010 Q4	2010 Q3	2010 Q1
OPERATING ACTIVITIES
Net Income	$928.0M	$1.106B	$930.0M
YoY Change	-0.75%	15.57%	79.54%
Depreciation, Depletion And Amortization	$283.0M	$278.0M	$287.0M
YoY Change	-5.03%	-4.14%	5.9%
Cash From Operating Activities	$1.631B	$1.323B	$1.082B
YoY Change	56.23%	-23.79%	55.68%
INVESTING ACTIVITIES
Capital Expenditures	-$526.0M	-$228.0M	$157.0M
YoY Change	91.97%	30.29%	-35.66%
Acquisitions			$17.00M
YoY Change			88.89%
Other Investing Activities	-$1.223B	$726.0M	$63.00M
YoY Change	220.16%	-238.02%	-72.12%
Cash From Investing Activities	-$1.749B	$498.0M	-$987.0M
YoY Change	166.62%	-171.04%	5383.33%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net			$20.00M
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-959.0M	-464.0M	-$275.0M
YoY Change	60.64%	60.0%	-69.68%
NET CHANGE
Cash From Operating Activities	1.631B	1.323B	$1.082B
Cash From Investing Activities	-1.749B	498.0M	-$987.0M
Cash From Financing Activities	-959.0M	-464.0M	-$275.0M
Net Change In Cash	-1.077B	1.357B	-$180.0M
YoY Change	415.31%	82.15%	-21.74%
FREE CASH FLOW
Cash From Operating Activities	$1.631B	$1.323B	$1.082B
Capital Expenditures	-$526.0M	-$228.0M	$157.0M
Free Cash Flow	$2.157B	$1.551B	$925.0M
YoY Change	63.66%	-18.84%	105.1%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2009Q4	us-gaap	Inventory Net InventoryNet	2639000000	usd
CY2009Q4	us-gaap	Other Assets Current OtherAssetsCurrent	1122000000	usd
CY2009Q4	us-gaap	Assets Current AssetsCurrent	10795000000	usd
CY2010	dei	Entity Central Index Key EntityCentralIndexKey	0000066740
CY2010	dei	Document Type DocumentType	8-K
CY2010	dei	Document Period End Date DocumentPeriodEndDate	2010-12-31
CY2010	dei	Amendment Flag AmendmentFlag	false
CY2010	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2010	dei	Entity Registrant Name EntityRegistrantName	3M CO
CY2010	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2010	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2010	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2010
CY2010	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2009Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	3040000000	usd
CY2009Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	744000000	usd
CY2009Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3250000000	usd
CY2009Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1255000000	usd
CY2009Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	815000000	usd
CY2009Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	569000000	usd
CY2009Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	825000000	usd
CY2009Q4	us-gaap	Long Term Investments LongTermInvestments	103000000	usd
CY2009Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	19440000000	usd
CY2009Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	7000000000	usd
CY2009Q4	us-gaap	Goodwill Goodwill	5832000000	usd
CY2009Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1342000000	usd
CY2009Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	78000000	usd
CY2009Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1275000000	usd
CY2009Q4	us-gaap	Assets Assets	27250000000	usd
CY2009Q4	us-gaap	Debt Current DebtCurrent	613000000	usd
CY2009Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1453000000	usd
CY2009Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	680000000	usd
CY2009Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	252000000	usd
CY2009Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	1899000000	usd
CY2009Q4	us-gaap	Liabilities Current LiabilitiesCurrent	4897000000	usd
CY2009Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	5097000000	usd
CY2009Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2227000000	usd
CY2009Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1727000000	usd
CY2009Q4	us-gaap	Liabilities Liabilities	13948000000	usd
CY2009Q4	us-gaap	Common Stock Value CommonStockValue	9000000	usd
CY2009Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3153000000	usd
CY2009Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	23753000000	usd
CY2009Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10397000000	usd
CY2009Q4	us-gaap	Stockholders Equity StockholdersEquity	12764000000	usd
CY2009Q4	us-gaap	Minority Interest MinorityInterest	538000000	usd
CY2009Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	13302000000	usd
CY2009Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	27250000000	usd
CY2010	mmm	Highly Inflationary Economic Environment Number Of Years Used In Calculation HighlyInflationaryEconomicEnvironmentNumberOfYearsUsedInCalculation	3	years
CY2010	mmm	Operating Income Of Subsidiary In Highly Inflationary Country Percent Of Consolidated Amount OperatingIncomeOfSubsidiaryInHighlyInflationaryCountryPercentOfConsolidatedAmount	0.01	pure
CY2010	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	11800000	shares
CY2009	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	6200000	shares
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CY2010	mmm	Business Acquisitions Completed Number BusinessAcquisitionsCompletedNumber	10	number
CY2010	us-gaap	Acquired Finite Lived Intangible Asset Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife	11	years
CY2010	mmm	Acquired Finite Lived Intangible Assets Useful Life Range Minimum AcquiredFiniteLivedIntangibleAssetsUsefulLifeRangeMinimum	2	pure
CY2010	mmm	Acquired Finite Lived Intangible Assets Useful Life Range Maximum AcquiredFiniteLivedIntangibleAssetsUsefulLifeRangeMaximum	17	pure
CY2010Q4	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	663000000	usd
CY2009Q4	us-gaap	Finite Lived Patents Gross FiniteLivedPatentsGross	457000000	usd
CY2009Q4	us-gaap	Other Finite Lived Intangible Assets Gross OtherFiniteLivedIntangibleAssetsGross	1528000000	usd
CY2009Q4	mmm	Intangible Assets Finite Lived And Indefinite Lived Gross IntangibleAssetsFiniteLivedAndIndefiniteLivedGross	2114000000	usd
CY2009Q4	mmm	Accumulated Amortization Finite Lived Patents AccumulatedAmortizationFiniteLivedPatents	339000000	usd
CY2009Q4	mmm	Accumulated Amortization Other Finite Lived Intangible Assets AccumulatedAmortizationOtherFiniteLivedIntangibleAssets	433000000	usd
CY2009Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	772000000	usd
CY2010Q4	us-gaap	Finite Lived Patents Gross FiniteLivedPatentsGross	551000000	usd
CY2010Q4	us-gaap	Other Finite Lived Intangible Assets Gross OtherFiniteLivedIntangibleAssetsGross	2016000000	usd
CY2010Q4	mmm	Intangible Assets Finite Lived And Indefinite Lived Gross IntangibleAssetsFiniteLivedAndIndefiniteLivedGross	2692000000	usd
CY2010Q4	mmm	Accumulated Amortization Finite Lived Patents AccumulatedAmortizationFiniteLivedPatents	345000000	usd
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CY2010	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	176000000	usd
CY2010	us-gaap	Future Amortization Expense Year One FutureAmortizationExpenseYearOne	208000000	usd
CY2010	us-gaap	Future Amortization Expense Year Two FutureAmortizationExpenseYearTwo	200000000	usd
CY2010	us-gaap	Future Amortization Expense Year Three FutureAmortizationExpenseYearThree	189000000	usd
CY2010	us-gaap	Future Amortization Expense Year Four FutureAmortizationExpenseYearFour	169000000	usd
CY2010	us-gaap	Future Amortization Expense Year Five FutureAmortizationExpenseYearFive	157000000	usd
CY2010	mmm	Future Amortization Expense After Year Five FutureAmortizationExpenseAfterYearFive	772000000	usd
CY2009	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	181000000	usd
CY2008	us-gaap	Finite Lived Intangible Assets Amortization Expense FiniteLivedIntangibleAssetsAmortizationExpense	122000000	usd
CY2010	mmm	Intangible Assets Acquired IntangibleAssetsAcquired	663000000	usd
CY2008Q4	mmm	Restructuring And Related Cost Positions Eliminated Number RestructuringAndRelatedCostPositionsEliminatedNumber	2400	number
CY2009Q1	mmm	Restructuring And Related Cost Positions Eliminated Number RestructuringAndRelatedCostPositionsEliminatedNumber	1200	number
CY2009Q3	mmm	Restructuring And Related Cost Positions Eliminated Number RestructuringAndRelatedCostPositionsEliminatedNumber	200	number
CY2009Q2	mmm	Restructuring And Related Cost Positions Eliminated Number RestructuringAndRelatedCostPositionsEliminatedNumber	900	number
CY2009Q3	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	26000000	usd
CY2009	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	266000000	usd
CY2009Q4	us-gaap	Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	6000000	usd
CY2009Q4	us-gaap	Price Risk Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value PriceRiskDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	1000000	usd
CY2010Q4	us-gaap	Derivative Asset Not Designated As Hedging Instrument Fair Value DerivativeAssetNotDesignatedAsHedgingInstrumentFairValue	12000000	usd
CY2009Q4	us-gaap	Restructuring Reserve RestructuringReserve	76000000	usd
CY2010Q4	us-gaap	Restructuring Reserve RestructuringReserve	22000000	usd
CY2009Q4	us-gaap	Marketable Securities MarketableSecurities	1569000000	usd
CY2010Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	794000000	usd
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CY2010Q4	mmm	Available For Sale Securities Debt Maturities After Three Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterThreeThroughFiveYearsFairValue	17000000	usd
CY2010Q4	mmm	Available For Sale Securities Debt Maturities After Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveYearsFairValue	34000000	usd
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CY2010	us-gaap	Maximum Length Of Time Hedged In Foreign Currency Cash Flow Hedge MaximumLengthOfTimeHedgedInForeignCurrencyCashFlowHedge	12 months
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CY2010	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	-9000000	usd
CY2009Q1	us-gaap	Notional Amount Of Foreign Currency Fair Value Hedge Derivatives NotionalAmountOfForeignCurrencyFairValueHedgeDerivatives	255000000	usd
CY2010	us-gaap	Increase Decrease In Fair Value Of Interest Rate Fair Value Hedging Instruments IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments	-16000000	usd
CY2009	us-gaap	Increase Decrease In Fair Value Of Interest Rate Fair Value Hedging Instruments IncreaseDecreaseInFairValueOfInterestRateFairValueHedgingInstruments	16000000	usd
CY2010	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments ChangeInUnrealizedGainLossOnFairValueHedgingInstruments	-16000000	usd
CY2009	us-gaap	Change In Unrealized Gain Loss On Fair Value Hedging Instruments ChangeInUnrealizedGainLossOnFairValueHedgingInstruments	16000000	usd
CY2010	us-gaap	Increase Decrease In Fair Value Of Hedged Item In Interest Rate Fair Value Hedge IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge	16000000	usd
CY2009	us-gaap	Increase Decrease In Fair Value Of Hedged Item In Interest Rate Fair Value Hedge IncreaseDecreaseInFairValueOfHedgedItemInInterestRateFairValueHedge	-16000000	usd
CY2010	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge	16000000	usd
CY2009	us-gaap	Change In Unrealized Gain Loss On Hedged Item In Fair Value Hedge ChangeInUnrealizedGainLossOnHedgedItemInFairValueHedge	-16000000	usd
CY2010Q4	us-gaap	Foreign Currency Cash Flow Hedge Asset At Fair Value ForeignCurrencyCashFlowHedgeAssetAtFairValue	26000000	usd
CY2009Q4	us-gaap	Foreign Currency Cash Flow Hedge Asset At Fair Value ForeignCurrencyCashFlowHedgeAssetAtFairValue	17000000	usd
CY2009Q4	us-gaap	Price Risk Cash Flow Hedge Asset At Fair Value PriceRiskCashFlowHedgeAssetAtFairValue	1000000	usd
CY2010Q4	us-gaap	Interest Rate Fair Value Hedge Asset At Fair Value InterestRateFairValueHedgeAssetAtFairValue	39000000	usd
CY2009Q4	us-gaap	Interest Rate Fair Value Hedge Asset At Fair Value InterestRateFairValueHedgeAssetAtFairValue	54000000	usd
CY2010Q4	us-gaap	Derivative Asset Designated As Hedging Instrument Fair Value DerivativeAssetDesignatedAsHedgingInstrumentFairValue	65000000	usd
CY2009Q4	us-gaap	Derivative Asset Designated As Hedging Instrument Fair Value DerivativeAssetDesignatedAsHedgingInstrumentFairValue	72000000	usd
CY2010Q4	us-gaap	Foreign Currency Derivative Instruments Not Designated As Hedging Instruments Asset At Fair Value ForeignCurrencyDerivativeInstrumentsNotDesignatedAsHedgingInstrumentsAssetAtFairValue	12000000	usd
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CY2010Q4	us-gaap	Derivative Fair Value Of Derivative Asset DerivativeFairValueOfDerivativeAsset	77000000	usd
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CY2010Q4	us-gaap	Foreign Currency Cash Flow Hedge Liability At Fair Value ForeignCurrencyCashFlowHedgeLiabilityAtFairValue	48000000	usd
CY2009Q4	us-gaap	Foreign Currency Cash Flow Hedge Liability At Fair Value ForeignCurrencyCashFlowHedgeLiabilityAtFairValue	41000000	usd
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CY2010Q4	us-gaap	Derivative Liability Not Designated As Hedging Instrument Fair Value DerivativeLiabilityNotDesignatedAsHedgingInstrumentFairValue	34000000	usd
CY2010	mmm	Research Development And Related Expenses ResearchDevelopmentAndRelatedExpenses	1434000000	usd
CY2009	mmm	Research Development And Related Expenses ResearchDevelopmentAndRelatedExpenses	1293000000	usd
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CY2010	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	5479000000	usd
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CY2010	us-gaap	Costs And Expenses CostsAndExpenses	20744000000	usd
CY2009Q4	us-gaap	Derivative Liability Not Designated As Hedging Instrument Fair Value DerivativeLiabilityNotDesignatedAsHedgingInstrumentFairValue	52000000	usd
CY2010Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	87000000	usd
CY2009Q4	us-gaap	Derivative Fair Value Of Derivative Liability DerivativeFairValueOfDerivativeLiability	94000000	usd
CY2010	mmm	Year On Year Currency Effects On Net Income YearOnYearCurrencyEffectsOnNetIncome	15000000	usd
CY2009	mmm	Year On Year Currency Effects On Net Income YearOnYearCurrencyEffectsOnNetIncome	-220000000	usd
CY2010	mmm	Year On Year Derivative And Other Transaction Gain Loss Impact On Net Income YearOnYearDerivativeAndOtherTransactionGainLossImpactOnNetIncome	-115000000	usd
CY2009Q2	mmm	Impairment Of Long Lived Assets Held For Abandonment ImpairmentOfLongLivedAssetsHeldForAbandonment	13000000	usd
CY2010Q4	mmm	Fair Value Liabilities Measured On Recurring Basis Long Term Debt Noncurrent FairValueLiabilitiesMeasuredOnRecurringBasisLongTermDebtNoncurrent	4466000000	usd
CY2009Q4	mmm	Fair Value Liabilities Measured On Recurring Basis Long Term Debt Noncurrent FairValueLiabilitiesMeasuredOnRecurringBasisLongTermDebtNoncurrent	5355000000	usd
CY2008Q2	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	35000000	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Authorized ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized	64000000	shares
CY2010Q2	mmm	Additional Shares Approved Under Share Based Compensation Arrangement Number Of Shares Authorized AdditionalSharesApprovedUnderShareBasedCompensationArrangementNumberOfSharesAuthorized	29000000	shares
CY2010Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options And Stock Appreciation Rights Ratio Applied For Calculation Of Awards Against Limit Numerator After Grant Date ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAndStockAppreciationRightsRatioAppliedForCalculationOfAwardsAgainstLimitNumeratorAfterGrantDate	2.87	shares
CY2010Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Number Of Shares Available For Grant ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAvailableForGrant	31825085	shares
CY2010	mmm	Share Based Compensation Arrangement By Share Based Payment Award Expense Recognition Eligible For Retirement Age ShareBasedCompensationArrangementByShareBasedPaymentAwardExpenseRecognitionEligibleForRetirementAge	55	years
CY2010	mmm	Share Based Compensation Arrangement By Share Based Payment Award Expense Recognition Years Of Service Number ShareBasedCompensationArrangementByShareBasedPaymentAwardExpenseRecognitionYearsOfServiceNumber	5	number
CY2010	mmm	Share Based Compensation Arrangement By Share Based Payment Award Expense Portion Attributable To Retiree Eligible Population Percent High Low Of Range ShareBasedCompensationArrangementByShareBasedPaymentAwardExpensePortionAttributableToRetireeEligiblePopulationPercentHighLowOfRange	0.25	pure
CY2010	mmm	Share Based Compensation Arrangement By Share Based Payment Award Expense Portion Attributable To Retiree Eligible Population Percent High End Of Range ShareBasedCompensationArrangementByShareBasedPaymentAwardExpensePortionAttributableToRetireeEligiblePopulationPercentHighEndOfRange	0.30	pure
CY2010Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options And Stock Appreciation Rights Ratio Applied For Calculation Of Awards Against Limit Numerator ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsAndStockAppreciationRightsRatioAppliedForCalculationOfAwardsAgainstLimitNumerator	3.38	shares
CY2011Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	711805978	shares
CY2010	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	978000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	1000000	usd
CY2010	us-gaap	Goodwill Allocation Adjustment GoodwillAllocationAdjustment	2000000	usd
CY2010	mmm	Segments Number SegmentsNumber	6	number
CY2010	mmm	Cumulative Inflation Rate Of Subsidiary In Highly Inflationary Country Percent Range Minimum CumulativeInflationRateOfSubsidiaryInHighlyInflationaryCountryPercentRangeMinimum	1.00	pure
CY2009	us-gaap	Commitments And Contingencies2009 CommitmentsAndContingencies2009
CY2010	us-gaap	Sales Revenue Net SalesRevenueNet	26662000000	usd
CY2009	us-gaap	Sales Revenue Net SalesRevenueNet	23123000000	usd
CY2008	us-gaap	Sales Revenue Net SalesRevenueNet	25269000000	usd
CY2010	us-gaap	Cost Of Revenue CostOfRevenue	13831000000	usd
CY2009	us-gaap	Cost Of Revenue CostOfRevenue	12109000000	usd
CY2008	us-gaap	Cost Of Revenue CostOfRevenue	13379000000	usd
CY2008	us-gaap	Selling General And Administrative Expense SellingGeneralAndAdministrativeExpense	5245000000	usd
CY2009	us-gaap	Costs And Expenses CostsAndExpenses	18309000000	usd
CY2008	us-gaap	Costs And Expenses CostsAndExpenses	20051000000	usd
CY2008	us-gaap	Disposal Group Not Discontinued Operation Gain Loss On Disposal DisposalGroupNotDiscontinuedOperationGainLossOnDisposal	-23000000	usd
CY2010	us-gaap	Operating Income Loss OperatingIncomeLoss	5918000000	usd
CY2009	us-gaap	Operating Income Loss OperatingIncomeLoss	4814000000	usd
CY2008	us-gaap	Interest And Debt Expense InterestAndDebtExpense	215000000	usd
CY2010	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	38000000	usd
CY2009	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	37000000	usd
CY2008	us-gaap	Operating Income Loss OperatingIncomeLoss	5218000000	usd
CY2010	us-gaap	Interest And Debt Expense InterestAndDebtExpense	201000000	usd
CY2009	us-gaap	Interest And Debt Expense InterestAndDebtExpense	219000000	usd
CY2008	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	105000000	usd
CY2010	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-163000000	usd
CY2009	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-182000000	usd
CY2008	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-110000000	usd
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	5755000000	usd
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4632000000	usd
CY2008	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	5108000000	usd
CY2010	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1592000000	usd
CY2009	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1388000000	usd
CY2008	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1588000000	usd
CY2010	us-gaap	Profit Loss ProfitLoss	4163000000	usd
CY2010	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	78000000	usd
CY2009	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	51000000	usd
CY2008	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	60000000	usd
CY2010	us-gaap	Net Income Loss NetIncomeLoss	4085000000	usd
CY2009	us-gaap	Net Income Loss NetIncomeLoss	3193000000	usd
CY2008	us-gaap	Net Income Loss NetIncomeLoss	3460000000	usd
CY2010	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	713700000	shares
CY2009	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	700500000	shares
CY2008	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	699200000	shares
CY2010	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	5.72
CY2009	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.56
CY2008	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	4.95
CY2010	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	725500000	shares
CY2009	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	706700000	shares
CY2008	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	707200000	shares
CY2010	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	5.63
CY2009	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.52
CY2008	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	4.89
CY2010	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.10
CY2009	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.04
CY2008	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	2.00
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	3377000000	usd
CY2010Q4	us-gaap	Marketable Securities Current MarketableSecuritiesCurrent	1101000000	usd
CY2010Q4	us-gaap	Accounts Receivable Net Current AccountsReceivableNetCurrent	3615000000	usd
CY2010Q4	us-gaap	Inventory Finished Goods InventoryFinishedGoods	1476000000	usd
CY2010Q4	us-gaap	Inventory Work In Process InventoryWorkInProcess	950000000	usd
CY2010Q4	us-gaap	Inventory Raw Materials And Supplies InventoryRawMaterialsAndSupplies	729000000	usd
CY2010Q4	us-gaap	Inventory Net InventoryNet	3155000000	usd
CY2010Q4	us-gaap	Other Assets Current OtherAssetsCurrent	967000000	usd
CY2010Q4	us-gaap	Assets Current AssetsCurrent	12215000000	usd
CY2010Q4	us-gaap	Marketable Securities Noncurrent MarketableSecuritiesNoncurrent	540000000	usd
CY2010Q4	us-gaap	Long Term Investments LongTermInvestments	146000000	usd
CY2010Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	20253000000	usd
CY2010Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2010Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	98000000	usd
CY2010Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	30156000000	usd
CY2010Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	7279000000	usd
CY2010Q4	us-gaap	Goodwill Goodwill	6820000000	usd
CY2010Q4	us-gaap	Intangible Assets Net Excluding Goodwill IntangibleAssetsNetExcludingGoodwill	1820000000	usd
CY2010Q4	us-gaap	Defined Benefit Plan Assets For Plan Benefits Noncurrent DefinedBenefitPlanAssetsForPlanBenefitsNoncurrent	74000000	usd
CY2010Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	1262000000	usd
CY2010Q4	us-gaap	Assets Assets	30156000000	usd
CY2010Q4	us-gaap	Debt Current DebtCurrent	1269000000	usd
CY2010Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	1662000000	usd
CY2010Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	778000000	usd
CY2010Q4	us-gaap	Accrued Income Taxes Current AccruedIncomeTaxesCurrent	358000000	usd
CY2010Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	2022000000	usd
CY2010Q4	us-gaap	Liabilities Current LiabilitiesCurrent	6089000000	usd
CY2010Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	4183000000	usd
CY2010Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Liabilities Noncurrent PensionAndOtherPostretirementDefinedBenefitPlansLiabilitiesNoncurrent	2013000000	usd
CY2010Q4	us-gaap	Other Liabilities Noncurrent OtherLiabilitiesNoncurrent	1854000000	usd
CY2010Q4	us-gaap	Liabilities Liabilities	14139000000	usd
CY2010Q4	us-gaap	Common Stock Value CommonStockValue	9000000	usd
CY2010Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	3468000000	usd
CY2010Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	25995000000	usd
CY2010Q4	us-gaap	Treasury Stock Value TreasuryStockValue	10266000000	usd
CY2010Q4	us-gaap	Stockholders Equity StockholdersEquity	15663000000	usd
CY2010Q4	us-gaap	Minority Interest MinorityInterest	354000000	usd
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	16017000000	usd
CY2009Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	109000000	usd
CY2010	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1120000000	usd
CY2009	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1157000000	usd
CY2008	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	1153000000	usd
CY2010	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	618000000	usd
CY2009	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	792000000	usd
CY2008	us-gaap	Pension And Other Postretirement Benefit Contributions PensionAndOtherPostretirementBenefitContributions	474000000	usd
CY2010	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	322000000	usd
CY2009	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	223000000	usd
CY2008	us-gaap	Pension And Other Postretirement Benefit Expense PensionAndOtherPostretirementBenefitExpense	105000000	usd
CY2010	us-gaap	Share Based Compensation ShareBasedCompensation	274000000	usd
CY2009	us-gaap	Share Based Compensation ShareBasedCompensation	217000000	usd
CY2008	us-gaap	Share Based Compensation ShareBasedCompensation	202000000	usd
CY2010	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	-170000000	usd
CY2009	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	701000000	usd
CY2008	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	99000000	usd
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	53000000	usd
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	14000000	usd
CY2008	us-gaap	Excess Tax Benefit From Share Based Compensation Operating Activities ExcessTaxBenefitFromShareBasedCompensationOperatingActivities	21000000	usd
CY2010	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	189000000	usd
CY2009	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-55000000	usd
CY2008	us-gaap	Increase Decrease In Receivables IncreaseDecreaseInReceivables	-197000000	usd
CY2009	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	-453000000	usd
CY2008	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	127000000	usd
CY2010	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	146000000	usd
CY2009	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	109000000	usd
CY2008	us-gaap	Increase Decrease In Accounts Payable IncreaseDecreaseInAccountsPayable	-224000000	usd
CY2010	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	255000000	usd
CY2010	us-gaap	Increase Decrease In Inventories IncreaseDecreaseInInventories	404000000	usd
CY2009	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-147000000	usd
CY2008	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-143000000	usd
CY2010	mmm	Change In Product And Other Insurance Receivables And Claims ChangeInProductAndOtherInsuranceReceivablesAndClaims	49000000	usd
CY2009	mmm	Change In Product And Other Insurance Receivables And Claims ChangeInProductAndOtherInsuranceReceivablesAndClaims	64000000	usd
CY2008	mmm	Change In Product And Other Insurance Receivables And Claims ChangeInProductAndOtherInsuranceReceivablesAndClaims	153000000	usd
CY2010	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-279000000	usd
CY2009	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	329000000	usd
CY2008	us-gaap	Increase Decrease In Other Operating Capital Net IncreaseDecreaseInOtherOperatingCapitalNet	-70000000	usd
CY2010	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	5174000000	usd
CY2009	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4941000000	usd
CY2008	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	4533000000	usd
CY2010	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1091000000	usd
CY2009	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	903000000	usd
CY2008	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1471000000	usd
CY2010	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	25000000	usd
CY2009	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	74000000	usd
CY2008	us-gaap	Proceeds From Sale Of Productive Assets ProceedsFromSaleOfProductiveAssets	87000000	usd
CY2010	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	3287000000	usd
CY2009	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2240000000	usd
CY2008	us-gaap	Payments To Acquire Investments PaymentsToAcquireInvestments	2211000000	usd
CY2010	mmm	Proceeds From Sale Of Marketable Securities And Investments ProceedsFromSaleOfMarketableSecuritiesAndInvestments	1995000000	usd
CY2009	mmm	Proceeds From Sale Of Marketable Securities And Investments ProceedsFromSaleOfMarketableSecuritiesAndInvestments	718000000	usd
CY2008	mmm	Proceeds From Sale Of Marketable Securities And Investments ProceedsFromSaleOfMarketableSecuritiesAndInvestments	1810000000	usd
CY2010	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	1565000000	usd
CY2009	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	683000000	usd
CY2008	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	692000000	usd
CY2009	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	5000000	usd
CY2008	us-gaap	Proceeds From Divestiture Of Businesses ProceedsFromDivestitureOfBusinesses	88000000	usd
CY2010	us-gaap	Payments For Proceeds From Other Investing Activities PaymentsForProceedsFromOtherInvestingActivities	66000000	usd
CY2010	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2689000000	usd
CY2009	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-1732000000	usd
CY2008	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-2399000000	usd
CY2010	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-24000000	usd
CY2009	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	-536000000	usd
CY2008	us-gaap	Proceeds From Repayments Of Short Term Debt Maturing In Three Months Or Less ProceedsFromRepaymentsOfShortTermDebtMaturingInThreeMonthsOrLess	361000000	usd
CY2010	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	556000000	usd
CY2010	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	53000000	usd
CY2009	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	519000000	usd
CY2008	us-gaap	Repayments Of Other Debt RepaymentsOfOtherDebt	1080000000	usd
CY2010	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	108000000	usd
CY2009	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	41000000	usd
CY2008	us-gaap	Proceeds From Other Debt ProceedsFromOtherDebt	1756000000	usd
CY2010	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	854000000	usd
CY2009	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	17000000	usd
CY2008	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	1631000000	usd
CY2010	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	666000000	usd
CY2009	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	431000000	usd
CY2008	us-gaap	Proceeds From Sale Of Treasury Stock ProceedsFromSaleOfTreasuryStock	289000000	usd
CY2010	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1500000000	usd
CY2009	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1431000000	usd
CY2008	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1398000000	usd
CY2008	us-gaap	Payments Of Dividends Minority Interest PaymentsOfDividendsMinorityInterest	23000000	usd
CY2009	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	14000000	usd
CY2008	us-gaap	Excess Tax Benefit From Share Based Compensation Financing Activities ExcessTaxBenefitFromShareBasedCompensationFinancingActivities	21000000	usd
CY2010	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-14000000	usd
CY2009	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	3000000	usd
CY2008	us-gaap	Proceeds From Payments For Other Financing Activities ProceedsFromPaymentsForOtherFinancingActivities	-61000000	usd
CY2010	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2121000000	usd
CY2009	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-2014000000	usd
CY2008	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-1766000000	usd
CY2010	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-27000000	usd
CY2009	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-4000000	usd
CY2008	us-gaap	Effect Of Exchange Rate On Cash And Cash Equivalents EffectOfExchangeRateOnCashAndCashEquivalents	-415000000	usd
CY2010	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	337000000	usd
CY2009	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1191000000	usd
CY2008	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-47000000	usd
CY2008Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1849000000	usd
CY2007Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	1896000000	usd
CY2010	us-gaap	Commitments And Contingencies2009 CommitmentsAndContingencies2009
CY2010	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-42000000	usd
CY2010	us-gaap	Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease	3000000	usd
CY2010	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	4000000	usd
CY2010	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	4372000000	usd
CY2010	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1500000000	usd
CY2010	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	311000000	usd
CY2010	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	880000000	usd
CY2010	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	668000000	usd
CY2010	mmm	Minority Interest Decrease From Purchase Of Subsidiary Shares And Transfers MinorityInterestDecreaseFromPurchaseOfSubsidiarySharesAndTransfers	256000000	usd
CY2010	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	115000000	usd
CY2010	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	4257000000	usd
CY2009	us-gaap	Profit Loss ProfitLoss	3244000000	usd
CY2008	us-gaap	Profit Loss ProfitLoss	3520000000	usd
CY2009	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease	273000000	usd
CY2008	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease	-806000000	usd
CY2009	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-314000000	usd
CY2008	us-gaap	Other Comprehensive Income Defined Benefit Plans Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDefinedBenefitPlansAdjustmentNetOfTaxPeriodIncreaseDecrease	-2092000000	usd
CY2009	us-gaap	Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease	10000000	usd
CY2009	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	-80000000	usd
CY2009	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-111000000	usd
CY2009	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	3133000000	usd
CY2009	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	33000000	usd
CY2009	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	3100000000	usd
CY2008	us-gaap	Other Comprehensive Income Available For Sale Securities Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeAvailableForSaleSecuritiesAdjustmentNetOfTaxPeriodIncreaseDecrease	-11000000	usd
CY2008	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Period Increase Decrease OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPeriodIncreaseDecrease	72000000	usd
CY2008	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	-2837000000	usd
CY2008	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	683000000	usd
CY2008	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	122000000	usd
CY2008	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	561000000	usd
CY2010	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	10572666	shares
CY2010	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	-11951155	shares
CY2009	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	254419	shares
CY2008	us-gaap	Treasury Stock Shares Acquired TreasuryStockSharesAcquired	21424003	shares
CY2009	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	-17310251	shares
CY2008	us-gaap	Stock Issued During Period Shares Treasury Stock Reissued StockIssuedDuringPeriodSharesTreasuryStockReissued	-5811259	shares
CY2009Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	233433937	shares
CY2008Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	250489769	shares
CY2007Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	234877025	shares
CY2010Q4	us-gaap	Treasury Stock Shares TreasuryStockShares	232055448	shares
CY2009	mmm	Goodwill Acquired During Period And Allocation Adjustments GoodwillAcquiredDuringPeriodAndAllocationAdjustments	-25000000	usd
CY2009	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	104000000	usd
CY2010	mmm	Goodwill Acquired During Period And Allocation Adjustments GoodwillAcquiredDuringPeriodAndAllocationAdjustments	980000000	usd
CY2010	us-gaap	Goodwill Translation And Purchase Accounting Adjustments GoodwillTranslationAndPurchaseAccountingAdjustments	8000000	usd
CY2008Q4	us-gaap	Goodwill Goodwill	5753000000	usd
CY2009	mmm	Business Acquisitions Completed Number BusinessAcquisitionsCompletedNumber	4	number
CY2009	us-gaap	Goodwill Acquired During Period GoodwillAcquiredDuringPeriod	15000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Expected Tax Deductible Amount BusinessAcquisitionPurchasePriceAllocationGoodwillExpectedTaxDeductibleAmount	9000000	usd
CY2009	us-gaap	Goodwill Allocation Adjustment GoodwillAllocationAdjustment	-40000000	usd
CY2010	mmm	Minority Interest Decrease To Noncontrolling Interest Transfers Of Ownership MinorityInterestDecreaseToNoncontrollingInterestTransfersOfOwnership	43000000	usd
CY2009	mmm	Minority Interest Increase From Distributions To Noncontrolling Interest Transfer Of Shares MinorityInterestIncreaseFromDistributionsToNoncontrollingInterestTransferOfShares	-81000000	usd
CY2010Q4	us-gaap	Marketable Securities MarketableSecurities	1641000000	usd
CY2010	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Earnings Net CashFlowHedgeGainLossReclassifiedToEarningsNet	-15000000	usd
CY2009	us-gaap	Unrealized Gain Loss On Cash Flow Hedging Instruments UnrealizedGainLossOnCashFlowHedgingInstruments	-21000000	usd
CY2009	us-gaap	Cash Flow Hedge Gain Loss Reclassified To Earnings Net CashFlowHedgeGainLossReclassifiedToEarningsNet	109000000	usd
CY2010	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2010	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2010Q2	dei	Entity Public Float EntityPublicFloat	56300000000	usd
CY2008	mmm	Business Acquisitions Completed Number BusinessAcquisitionsCompletedNumber	18	number
CY2010Q4	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed	1700000000
CY2010Q4	us-gaap	Noncash Or Part Noncash Acquisition Value Of Liabilities Assumed NoncashOrPartNoncashAcquisitionValueOfLiabilitiesAssumed	18000000	usd
CY2009Q4	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	20000000	usd
CY2009	us-gaap	Acquired Finite Lived Intangible Asset Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife	8	years
CY2009	mmm	Acquired Finite Lived Intangible Assets Useful Life Range Minimum AcquiredFiniteLivedIntangibleAssetsUsefulLifeRangeMinimum	3	years
CY2009	mmm	Acquired Finite Lived Intangible Assets Useful Life Range Maximum AcquiredFiniteLivedIntangibleAssetsUsefulLifeRangeMaximum	12	years
CY2008	us-gaap	Acquired Finite Lived Intangible Asset Weighted Average Useful Life AcquiredFiniteLivedIntangibleAssetWeightedAverageUsefulLife	13	years
CY2008	mmm	Acquired Finite Lived Intangible Assets Useful Life Range Minimum AcquiredFiniteLivedIntangibleAssetsUsefulLifeRangeMinimum	1	pure
CY2008	mmm	Acquired Finite Lived Intangible Assets Useful Life Range Maximum AcquiredFiniteLivedIntangibleAssetsUsefulLifeRangeMaximum	19	pure
CY2009Q4	us-gaap	Acquired Indefinite Lived Intangible Asset Amount AcquiredIndefiniteLivedIntangibleAssetAmount	8000000	usd
CY2010Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Options Restricted Stock And Restricted Stock Units Number Of Participants ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOptionsRestrictedStockAndRestrictedStockUnitsNumberOfParticipants	13524	number
CY2010Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Vesting Period Prior To May2005 Msop ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriodPriorToMay2005MSOP	1	years
CY2010Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Vesting Period After May2005 Msop ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriodAfterMay2005MSOP	3	years
CY2010Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Expiration Period ShareBasedCompensationArrangementByShareBasedPaymentAwardExpirationPeriod	10	years
CY2010Q4	mmm	Product And Other Insurance Receivables Current ProductAndOtherInsuranceReceivablesCurrent	92000000	usd
CY2010Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	84000000	usd
CY2010Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	21000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	648000000	usd
CY2010Q4	mmm	Product And Other Insurance Receivables Noncurrent ProductAndOtherInsuranceReceivablesNoncurrent	143000000	usd
CY2010Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	213000000	usd
CY2010Q4	mmm	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	258000000	usd
CY2010Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	369000000	usd
CY2010Q4	us-gaap	Loss Contingency Accrual Product Liability Net LossContingencyAccrualProductLiabilityNet	324000000	usd
CY2010Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	94000000	usd
CY2009	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	209000000	usd
CY2008Q4	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	229000000	usd
CY2009Q1	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	67000000	usd
CY2009Q2	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	116000000	usd
CY2009	us-gaap	Restructuring Reserve Settled Without Cash RestructuringReserveSettledWithoutCash	53000000	usd
CY2010	us-gaap	Restructuring Reserve Settled With Cash RestructuringReserveSettledWithCash	54000000	usd
CY2008	us-gaap	Restructuring Reserve Settled Without Cash RestructuringReserveSettledWithoutCash	43000000	usd
CY2010Q4	mmm	Number Of Countries In Which Retirement Plans Sponsored NumberOfCountriesInWhichRetirementPlansSponsored	24	pure
CY2010Q4	mmm	Limited Partnership Interests With Wg Trading Company LimitedPartnershipInterestsWithWGTradingCompany	0.01	pure
CY2010Q4	us-gaap	Prescription Drug Subsidy Receipts Year One PrescriptionDrugSubsidyReceiptsYearOne	13000000	usd
CY2010Q4	us-gaap	Prescription Drug Subsidy Receipts Year Two PrescriptionDrugSubsidyReceiptsYearTwo	14000000	usd
	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	68000000	usd
CY2010Q4	mmm	Prepaid Expenseand Other Assets Current PrepaidExpenseandOtherAssetsCurrent	555000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	282000000	usd
CY2010Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	38000000	usd
CY2010Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	87000000	usd
CY2010Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	22000000	usd
CY2010Q4	mmm	Employee Related Liabilities Excluding Pension And Postretirement Benefits Current EmployeeRelatedLiabilitiesExcludingPensionAndPostretirementBenefitsCurrent	167000000	usd
CY2010Q4	us-gaap	Loss Contingency Accrual Product Liability Undiscounted Due Within One Year LossContingencyAccrualProductLiabilityUndiscountedDueWithinOneYear	132000000	usd
CY2010Q4	mmm	Taxes Other Than Income Taxes Payable Current TaxesOtherThanIncomeTaxesPayableCurrent	196000000	usd
CY2010Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	41000000	usd
CY2010Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	26000000	usd
CY2010Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	506000000	usd
CY2010Q4	us-gaap	Drafts Payable DraftsPayable	82000000	usd
CY2010Q4	mmm	Employee Benefits Liability Noncurrent EmployeeBenefitsLiabilityNoncurrent	524000000	usd
CY2010Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	18000000	usd
CY2010Q4	mmm	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	69000000	usd
CY2009Q4	mmm	Employee Benefits Liability Noncurrent EmployeeBenefitsLiabilityNoncurrent	491000000	usd
CY2009Q4	us-gaap	Loss Contingency Accrual Product Liability Net LossContingencyAccrualProductLiabilityNet	330000000	usd
CY2010Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	198000000	usd
CY2009Q4	us-gaap	Capital Lease Obligations Noncurrent CapitalLeaseObligationsNoncurrent	107000000	usd
CY2009Q4	us-gaap	Deferred Revenue Noncurrent DeferredRevenueNoncurrent	23000000	usd
CY2009Q4	us-gaap	Deferred Tax Liabilities Noncurrent DeferredTaxLiabilitiesNoncurrent	91000000	usd
CY2009Q4	mmm	Other Sundry Liabilities Noncurrent OtherSundryLiabilitiesNoncurrent	74000000	usd
CY2009	us-gaap	Cash Paid For Capitalized Interest CashPaidForCapitalizedInterest	27000000	usd
CY2008	us-gaap	Cash Paid For Capitalized Interest CashPaidForCapitalizedInterest	28000000	usd
CY2009	mmm	Amortization Period Of It Investment Years AmortizationPeriodOfITInvestmentYears	7	years
CY2009	us-gaap	Capital Lease Obligations Incurred CapitalLeaseObligationsIncurred	50000000	usd
CY2009Q4	us-gaap	Deferred Revenue Current DeferredRevenueCurrent	316000000	usd
CY2009Q4	us-gaap	Derivative Liabilities Current DerivativeLiabilitiesCurrent	94000000	usd
CY2009Q4	us-gaap	Restructuring Reserve Current RestructuringReserveCurrent	76000000	usd
CY2009Q4	mmm	Employee Related Liabilities Excluding Pension And Postretirement Benefits Current EmployeeRelatedLiabilitiesExcludingPensionAndPostretirementBenefitsCurrent	150000000	usd
CY2009Q4	us-gaap	Loss Contingency Accrual Product Liability Undiscounted Due Within One Year LossContingencyAccrualProductLiabilityUndiscountedDueWithinOneYear	123000000	usd
CY2009Q4	mmm	Taxes Other Than Income Taxes Payable Current TaxesOtherThanIncomeTaxesPayableCurrent	198000000	usd
CY2009Q4	us-gaap	Pension And Other Postretirement Defined Benefit Plans Current Liabilities PensionAndOtherPostretirementDefinedBenefitPlansCurrentLiabilities	41000000	usd
CY2009Q4	us-gaap	Deferred Tax Liabilities Current DeferredTaxLiabilitiesCurrent	27000000	usd
CY2009Q4	us-gaap	Other Accrued Liabilities Current OtherAccruedLiabilitiesCurrent	410000000	usd
CY2009Q4	us-gaap	Drafts Payable DraftsPayable	83000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Net Noncurrent DeferredTaxAssetsNetNoncurrent	625000000	usd
CY2009Q4	mmm	Product And Other Insurance Receivables Noncurrent ProductAndOtherInsuranceReceivablesNoncurrent	171000000	usd
CY2009Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	202000000	usd
CY2009Q4	mmm	Other Assets Miscellaneous Noncurrent OtherAssetsMiscellaneousNoncurrent	277000000	usd
CY2009Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	73000000	usd
CY2009Q4	us-gaap	Available For Sale Securities Noncurrent AvailableForSaleSecuritiesNoncurrent	11000000	usd
CY2009Q4	mmm	Prepaid Expenseand Other Assets Current PrepaidExpenseandOtherAssetsCurrent	657000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Net Current DeferredTaxAssetsNetCurrent	330000000	usd
CY2009Q4	us-gaap	Derivative Assets Current DerivativeAssetsCurrent	25000000	usd
CY2009Q4	mmm	Product And Other Insurance Receivables Current ProductAndOtherInsuranceReceivablesCurrent	110000000	usd
CY2010	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1509000000	usd
CY2009	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	834000000	usd
CY2008	us-gaap	Income Taxes Paid Net IncomeTaxesPaidNet	1778000000	usd
CY2010	us-gaap	Interest Paid InterestPaid	201000000	usd
CY2009	us-gaap	Interest Paid InterestPaid	236000000	usd
CY2008	us-gaap	Interest Paid InterestPaid	196000000	usd
CY2010	us-gaap	Cash Paid For Capitalized Interest CashPaidForCapitalizedInterest	17000000	usd
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2778000000	usd
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2338000000	usd
CY2008	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	2251000000	usd
CY2010	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2977000000	usd
CY2009	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2294000000	usd
CY2008	us-gaap	Income Loss From Continuing Operations Before Income Taxes Foreign IncomeLossFromContinuingOperationsBeforeIncomeTaxesForeign	2857000000	usd
CY2010	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	837000000	usd
CY2009	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	88000000	usd
CY2008	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	882000000	usd
CY2010	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	73000000	usd
CY2009	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	13000000	usd
CY2008	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	14000000	usd
CY2010	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	796000000	usd
CY2009	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	586000000	usd
CY2008	us-gaap	Current Foreign Tax Expense Benefit CurrentForeignTaxExpenseBenefit	820000000	usd
CY2010	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	55000000	usd
CY2009	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	489000000	usd
CY2008	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-168000000	usd
CY2010	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	43000000	usd
CY2009	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	56000000	usd
CY2008	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	34000000	usd
CY2010	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	-212000000	usd
CY2009	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	156000000	usd
CY2008	us-gaap	Deferred Foreign Income Tax Expense Benefit DeferredForeignIncomeTaxExpenseBenefit	6000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	99000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	168000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	724000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Pensions DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsPensions	852000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	501000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	473000000	usd
CY2009Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	5000000	usd
CY2010Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	695000000	usd
CY2009Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	571000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	46000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	706000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	837000000	usd
CY2010	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.012	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.01	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.008	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.071	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.053	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation Foreign Income Tax Rate Differential EffectiveIncomeTaxRateReconciliationForeignIncomeTaxRateDifferential	-0.041	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	-0.005	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Restructuring Charges EffectiveIncomeTaxRateReconciliationNondeductibleExpenseRestructuringCharges	0.004	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	0.01	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	-0.002	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation Deductions Medicare Prescription Drug Benefit EffectiveIncomeTaxRateReconciliationDeductionsMedicarePrescriptionDrugBenefit	-0.002	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.014	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.008	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation Prior Year Income Taxes EffectiveIncomeTaxRateReconciliationPriorYearIncomeTaxes	0.008	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.005	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation Deductions Qualified Production Activities EffectiveIncomeTaxRateReconciliationDeductionsQualifiedProductionActivities	-0.008	pure
CY2010	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003	pure
CY2009	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.005	pure
CY2008	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.003	pure
CY2010	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.277	pure
CY2009	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.30	pure
CY2008	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.311	pure
CY2010Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	622000000	usd
CY2009Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	618000000	usd
CY2008Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	557000000	usd
CY2007Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	680000000	usd
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	128000000	usd
CY2009	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	121000000	usd
CY2008	us-gaap	Unrecognized Tax Benefits Increases Resulting From Current Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromCurrentPeriodTaxPositions	126000000	usd
CY2010	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	142000000	usd
CY2009	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	164000000	usd
CY2008	us-gaap	Unrecognized Tax Benefits Increases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsIncreasesResultingFromPriorPeriodTaxPositions	98000000	usd
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	161000000	usd
CY2009	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	177000000	usd
CY2008	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Prior Period Tax Positions UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions	180000000	usd
CY2008	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	101000000	usd
CY2010	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	54000000	usd
CY2009	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	47000000	usd
CY2008	us-gaap	Unrecognized Tax Benefits Reductions Resulting From Lapse Of Applicable Statute Of Limitations UnrecognizedTaxBenefitsReductionsResultingFromLapseOfApplicableStatuteOfLimitations	66000000	usd
CY2010Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	394000000	usd
CY2009Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	425000000	usd
CY2008Q4	us-gaap	Unrecognized Tax Benefits That Would Impact Effective Tax Rate UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate	334000000	usd
CY2010	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	-9000000	usd
CY2009	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	6000000	usd
CY2008	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Expense UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestExpense	8000000	usd
CY2010Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	52000000	usd
CY2009Q4	us-gaap	Unrecognized Tax Benefits Income Tax Penalties And Interest Accrued UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued	53000000	usd
CY2010	mmm	Deferred Tax Asset Reduction Prescription Drug Subsidy DeferredTaxAssetReductionPrescriptionDrugSubsidy	84000000	usd
CY2010	mmm	Income Tax Rate Reconciliation Tax Status Of Certain Foreign Subsidiaries IncomeTaxRateReconciliationTaxStatusOfCertainForeignSubsidiaries	69000000	usd
CY2009	mmm	Income Tax Rate Reconciliation Tax Status Of Certain Foreign Subsidiaries IncomeTaxRateReconciliationTaxStatusOfCertainForeignSubsidiaries	50000000	usd
CY2008	mmm	Income Tax Rate Reconciliation Tax Status Of Certain Foreign Subsidiaries IncomeTaxRateReconciliationTaxStatusOfCertainForeignSubsidiaries	44000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	128000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	23000000	usd
CY2010Q4	mmm	Deferred Tax Liability Not Recognized Undistributed Foreign Earnings DeferredTaxLiabilityNotRecognizedUndistributedForeignEarnings	5600000000	usd
CY2010	mmm	Highly Inflationary Economic Environment Inflation Threshold Percent HighlyInflationaryEconomicEnvironmentInflationThresholdPercent	1.00	pure
CY2010Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	74000000	usd
CY2009Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	64000000	usd
CY2010	mmm	Finite Lived Intangible Assets Useful Life Low End Of Range FiniteLivedIntangibleAssetsUsefulLifeLowEndOfRange	1	years
CY2010	mmm	Finite Lived Intangible Assets Useful Life High End Of Range FiniteLivedIntangibleAssetsUsefulLifeHighEndOfRange	20	years
CY2010	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	919000000	usd
CY2009	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	838000000	usd
CY2008	us-gaap	Research And Development Expense ResearchAndDevelopmentExpense	851000000	usd
CY2010	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	26300000	shares
CY2009	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	54300000	shares
CY2008	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	41000000	shares
CY2010Q4	us-gaap	Available For Sale Securities Fair Value Disclosure AvailableForSaleSecuritiesFairValueDisclosure	592000000	usd
CY2010	mmm	Employee Stock Ownership Plan Esop Compensation Expense Cash Contributions EmployeeStockOwnershipPlanESOPCompensationExpenseCashContributions	97000000	usd
CY2009Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	14473474	shares
CY2008Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Allocated Shares EmployeeStockOwnershipPlanESOPNumberOfAllocatedShares	14240026	shares
CY2008Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Committed To Be Released Shares EmployeeStockOwnershipPlanESOPNumberOfCommittedToBeReleasedShares	27201	shares
CY2008Q4	us-gaap	Employee Stock Ownership Plan Esop Number Of Suspense Shares EmployeeStockOwnershipPlanESOPNumberOfSuspenseShares	1333692	shares
CY2008	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	33000000	usd
CY2008	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	14000000	usd
CY2008	us-gaap	Employee Stock Ownership Plan Esop Interest Payments From Esop EmployeeStockOwnershipPlanESOPInterestPaymentsFromESOP	3000000	usd
CY2008	mmm	Employee Stock Ownership Plan Esop Compensation Expense Debt Service EmployeeStockOwnershipPlanESOPCompensationExpenseDebtService	9000000	usd
CY2008	mmm	Employee Stock Ownership Plan Esop Compensation Expense Treasury Shares EmployeeStockOwnershipPlanESOPCompensationExpenseTreasuryShares	3000000	usd
CY2009	us-gaap	Employee Stock Ownership Plan Esop Dividends Paid To Esop EmployeeStockOwnershipPlanESOPDividendsPaidToESOP	31000000	usd
CY2009	us-gaap	Employee Stock Ownership Plan Esop Cash Contributions To Esop EmployeeStockOwnershipPlanESOPCashContributionsToESOP	16000000	usd
CY2009	us-gaap	Employee Stock Ownership Plan Esop Interest Payments From Esop EmployeeStockOwnershipPlanESOPInterestPaymentsFromESOP	1000000	usd
CY2009	mmm	Employee Stock Ownership Plan Esop Compensation Expense Debt Service EmployeeStockOwnershipPlanESOPCompensationExpenseDebtService	10000000	usd
CY2009	mmm	Employee Stock Ownership Plan Esop Compensation Expense Treasury Shares EmployeeStockOwnershipPlanESOPCompensationExpenseTreasuryShares	25000000	usd
CY2009	mmm	Employee Stock Ownership Plan Esop Compensation Expense Cash Contributions EmployeeStockOwnershipPlanESOPCompensationExpenseCashContributions	6000000	usd
CY2008Q4	us-gaap	Assets Assets	25793000000	usd
CY2010Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.29
CY2010Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.31
CY2010Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.57
CY2010Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.54
CY2010Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.55
CY2010Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.53
CY2010Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.30
CY2010Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.28
CY2010Q1	us-gaap	Sales Revenue Net SalesRevenueNet	6348000000	usd
CY2010Q1	us-gaap	Cost Of Revenue CostOfRevenue	3238000000	usd
CY2010Q1	us-gaap	Net Income Loss NetIncomeLoss	930000000	usd
CY2010Q2	us-gaap	Net Income Loss NetIncomeLoss	1121000000	usd
CY2010Q2	us-gaap	Cost Of Revenue CostOfRevenue	3435000000	usd
CY2010Q2	us-gaap	Sales Revenue Net SalesRevenueNet	6731000000	usd
CY2010Q3	us-gaap	Sales Revenue Net SalesRevenueNet	6874000000	usd
CY2010Q3	us-gaap	Cost Of Revenue CostOfRevenue	3583000000	usd
CY2010Q3	us-gaap	Net Income Loss NetIncomeLoss	1106000000	usd
CY2010Q4	us-gaap	Sales Revenue Net SalesRevenueNet	6709000000	usd
CY2010Q4	us-gaap	Cost Of Revenue CostOfRevenue	3575000000	usd
CY2010Q4	us-gaap	Net Income Loss NetIncomeLoss	928000000	usd
CY2009Q1	us-gaap	Sales Revenue Net SalesRevenueNet	5089000000	usd
CY2009Q1	us-gaap	Cost Of Revenue CostOfRevenue	2772000000	usd
CY2009Q1	us-gaap	Net Income Loss NetIncomeLoss	518000000	usd
CY2009Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.75
CY2009Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.74
CY2009Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.12
CY2009Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.12
CY2009Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.36
CY2009Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.35
CY2009Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.32
CY2009Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.30
CY2009Q2	us-gaap	Sales Revenue Net SalesRevenueNet	5719000000	usd
CY2009Q2	us-gaap	Cost Of Revenue CostOfRevenue	2977000000	usd
CY2009Q2	us-gaap	Net Income Loss NetIncomeLoss	783000000	usd
CY2009Q3	us-gaap	Sales Revenue Net SalesRevenueNet	6193000000	usd
CY2009Q3	us-gaap	Cost Of Revenue CostOfRevenue	3171000000	usd
CY2009Q3	us-gaap	Net Income Loss NetIncomeLoss	957000000	usd
CY2009Q4	us-gaap	Sales Revenue Net SalesRevenueNet	6122000000	usd
CY2009Q4	us-gaap	Cost Of Revenue CostOfRevenue	3189000000	usd
CY2009Q4	us-gaap	Net Income Loss NetIncomeLoss	935000000	usd
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CY2010	mmm	Prescription Drug Benefit Subsidy And Modifications In Health Care And Education Reconciliation Act Of2010 Effect On Diluted Earnings Per Share PrescriptionDrugBenefitSubsidyAndModificationsInHealthCareAndEducationReconciliationActOf2010EffectOnDilutedEarningsPerShare	.12
CY2009	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome	119000000	usd
CY2009	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet	0.17
CY2009Q1	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome	45000000	usd
CY2009Q1	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet	0.07
CY2009Q2	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome	60000000	usd
CY2009Q2	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet	0.08
CY2009Q3	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome	14000000	usd
CY2009Q3	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet	0.02
CY2010Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	711977608	shares
CY2009Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	710599119	shares
CY2010	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-42000000	usd
CY2007Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	12072000000	usd
CY2008	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1421000000	usd
CY2008	us-gaap	Amortization Of Esop Award AmortizationOfESOPAward	39000000	usd
CY2008	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	217000000	usd
CY2008	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	1603000000	usd
CY2008	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	317000000	usd
CY2008Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	10304000000	usd
CY2009	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	1431000000	usd
CY2009	us-gaap	Amortization Of Esop Award AmortizationOfESOPAward	40000000	usd
CY2009	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	213000000	usd
CY2009	us-gaap	Treasury Stock Value Acquired Cost Method TreasuryStockValueAcquiredCostMethod	17000000	usd
CY2009	us-gaap	Stock Issued During Period Value Treasury Stock Reissued StockIssuedDuringPeriodValueTreasuryStockReissued	1060000000	usd
CY2010Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	3000000000	shares
CY2010Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	944033056	shares
CY2010Q4	us-gaap	Preferred Stock No Par Value PreferredStockNoParValue
CY2010Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2010Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2010Q4	us-gaap	Long Term Debt LongTermDebt	5368000000	usd
CY2009Q4	us-gaap	Long Term Debt LongTermDebt	5619000000	usd
CY2010Q4	mmm	Floating Rate Long Term Debt Maturities Repayments Of Principal In Next Twelve Months FloatingRateLongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	160000000	usd
CY2010Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	1185000000	usd
CY2010Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	752000000	usd
CY2010Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	922000000	usd
CY2010Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	1413000000	usd
CY2010Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	0	usd
CY2010Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	1096000000	usd
CY2010Q4	us-gaap	Notional Amount Of Interest Rate Fair Value Hedge Derivatives NotionalAmountOfInterestRateFairValueHedgeDerivatives	1100000000	usd
CY2010Q4	us-gaap	Notional Amount Of Other Derivatives Not Designated As Hedging Instruments NotionalAmountOfOtherDerivativesNotDesignatedAsHedgingInstruments	883000000	usd
CY2010	us-gaap	Other Comprehensive Income Foreign Currency Transaction And Translation Adjustment Net Of Tax Period Increase Decrease OtherComprehensiveIncomeForeignCurrencyTransactionAndTranslationAdjustmentNetOfTaxPeriodIncreaseDecrease	244000000	usd
CY2010	mmm	Change In Functional Currency Of Subsidiary In Highly Inflationary Country Percent Associated Remeasurement ChangeInFunctionalCurrencyOfSubsidiaryInHighlyInflationaryCountryPercentAssociatedRemeasurement	0.667	pure
CY2009Q4	mmm	Acquired Intangible Asset Amount AcquiredIntangibleAssetAmount	28000000	usd
CY2007Q2	mmm	Medium Term Notes Program Established With Prior Shelf Registration MediumTermNotesProgramEstablishedWithPriorShelfRegistration	3000000000	usd
CY2007Q2	mmm	Debt Securities Issued Under Medium Term Notes Program Number DebtSecuritiesIssuedUnderMediumTermNotesProgramNumber	3	number
CY2003Q4	mmm	Medium Term Notes Program Established With Prior Shelf Registration MediumTermNotesProgramEstablishedWithPriorShelfRegistration	1500000000	usd
CY2009Q2	mmm	Voluntary Early Retirement Benefits Participants VoluntaryEarlyRetirementBenefitsParticipants	700	number
CY2010Q1	mmm	Minority Interest Decrease To Noncontrolling Interest Related To Purchase Of Subsidiary Shares Including Other Transfers From Noncontrolling Interest MinorityInterestDecreaseToNoncontrollingInterestRelatedToPurchaseOfSubsidiarySharesIncludingOtherTransfersFromNoncontrollingInterest	278000000	usd
CY2008	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	5000000	usd
CY2009	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	3000000	usd
CY2010Q2	mmm	Prescription Drug Benefit Subsidy And Modifications In Health Care And Education Reconciliation Act Of2010 Effect On Diluted Earnings Per Share PrescriptionDrugBenefitSubsidyAndModificationsInHealthCareAndEducationReconciliationActOf2010EffectOnDilutedEarningsPerShare
CY2010Q3	mmm	Prescription Drug Benefit Subsidy And Modifications In Health Care And Education Reconciliation Act Of2010 Effect On Diluted Earnings Per Share PrescriptionDrugBenefitSubsidyAndModificationsInHealthCareAndEducationReconciliationActOf2010EffectOnDilutedEarningsPerShare
CY2010Q4	mmm	Prescription Drug Benefit Subsidy And Modifications In Health Care And Education Reconciliation Act Of2010 Effect On Diluted Earnings Per Share PrescriptionDrugBenefitSubsidyAndModificationsInHealthCareAndEducationReconciliationActOf2010EffectOnDilutedEarningsPerShare
CY2010Q1	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome		usd
CY2010Q2	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome		usd
CY2010Q3	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome		usd
CY2010Q4	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome		usd
CY2010Q1	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet
CY2010Q2	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet
CY2010Q3	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet
CY2010Q4	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet
CY2009Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2008Q4	us-gaap	Acquired Indefinite Lived Intangible Asset Amount AcquiredIndefiniteLivedIntangibleAssetAmount	58000000	usd
CY2010Q4	mmm	Accumulated Depreciation For Capital Leases AccumulatedDepreciationForCapitalLeases	50000000	usd
CY2009Q4	mmm	Accumulated Depreciation For Capital Leases AccumulatedDepreciationForCapitalLeases	50000000	usd
CY2010Q4	mmm	Deferred Tax Assets Operating Loss And Capital Loss Carryforwards DeferredTaxAssetsOperatingLossAndCapitalLossCarryforwards	437000000	usd
CY2010Q4	mmm	Deferred Tax Liabilities Product And Other Insurance Receivables DeferredTaxLiabilitiesProductAndOtherInsuranceReceivables	59000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	2283000000	usd
CY2010Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	823000000	usd
CY2009Q4	mmm	Deferred Tax Liabilities Product And Other Insurance Receivables DeferredTaxLiabilitiesProductAndOtherInsuranceReceivables	80000000	usd
CY2010Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1577000000	usd
CY2010Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2411000000	usd
CY2010	us-gaap	Advertising Expense AdvertisingExpense	512000000	usd
CY2009	us-gaap	Advertising Expense AdvertisingExpense	414000000	usd
CY2008	us-gaap	Advertising Expense AdvertisingExpense	468000000	usd
CY2010Q4	mmm	Real Estate And Other Investments RealEstateAndOtherInvestments	41000000	usd
CY2009Q4	mmm	Real Estate And Other Investments RealEstateAndOtherInvestments	19000000	usd
CY2010Q4	mmm	Accrued Trade Payables AccruedTradePayables	476000000	usd
CY2009Q4	mmm	Accrued Trade Payables AccruedTradePayables	464000000	usd
CY2010Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	627000000	usd
CY2009Q4	us-gaap	Accrued Income Taxes Noncurrent AccruedIncomeTaxesNoncurrent	611000000	usd
CY2010	mmm	Effective Income Tax Rate Reconciliation Tax Credits Us Business EffectiveIncomeTaxRateReconciliationTaxCreditsUSBusiness	-0.002	pure
CY2009	mmm	Effective Income Tax Rate Reconciliation Tax Credits Us Business EffectiveIncomeTaxRateReconciliationTaxCreditsUSBusiness	-0.003	pure
CY2008	mmm	Effective Income Tax Rate Reconciliation Tax Credits Us Business EffectiveIncomeTaxRateReconciliationTaxCreditsUSBusiness	-0.005	pure
CY2010	mmm	Deferred Tax Asset Reduction Prescription Drug Subsidy Impact On Diluted Earnings Per Share DeferredTaxAssetReductionPrescriptionDrugSubsidyImpactOnDilutedEarningsPerShare	0.12
CY2010Q4	mmm	Deferred Tax Assets Deferred Expense Product And Other Claims DeferredTaxAssetsDeferredExpenseProductAndOtherClaims	148000000	usd
CY2009Q4	mmm	Deferred Tax Assets Deferred Expense Product And Other Claims DeferredTaxAssetsDeferredExpenseProductAndOtherClaims	160000000	usd
CY2010	mmm	Income Tax Rate Reconciliation Tax Status Of Certain Foreign Subsidiaries Impact On Diluted Earnings Per Share IncomeTaxRateReconciliationTaxStatusOfCertainForeignSubsidiariesImpactOnDilutedEarningsPerShare	0.10
CY2009	mmm	Income Tax Rate Reconciliation Tax Status Of Certain Foreign Subsidiaries Impact On Diluted Earnings Per Share IncomeTaxRateReconciliationTaxStatusOfCertainForeignSubsidiariesImpactOnDilutedEarningsPerShare	0.07
CY2008	mmm	Income Tax Rate Reconciliation Tax Status Of Certain Foreign Subsidiaries Impact On Diluted Earnings Per Share IncomeTaxRateReconciliationTaxStatusOfCertainForeignSubsidiariesImpactOnDilutedEarningsPerShare	0.06
CY2010	us-gaap	Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseGrossOfTax	111000000	usd
CY2009	us-gaap	Translation Adjustment For Net Investment Hedge Increase Decrease Gross Of Tax TranslationAdjustmentForNetInvestmentHedgeIncreaseDecreaseGrossOfTax	-39000000	usd
CY2009Q4	mmm	Prescription Drug Benefit Subsidy And Modifications In Health Care And Education Reconciliation Act Of2010 Effect On Diluted Earnings Per Share PrescriptionDrugBenefitSubsidyAndModificationsInHealthCareAndEducationReconciliationActOf2010EffectOnDilutedEarningsPerShare
CY2010	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome		usd
CY2009Q4	mmm	Unusual Or Infrequent Items Effect On Net Income UnusualOrInfrequentItemsEffectOnNetIncome		usd
CY2010	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet
CY2009Q4	mmm	Unusual Or Infrequent Items Diluted Earnings Per Share Impact Net UnusualOrInfrequentItemsDilutedEarningsPerShareImpactNet
CY2010Q2	mmm	Brazillian Defined Benefit Plan Curtailment Gain BrazillianDefinedBenefitPlanCurtailmentGain	22000000	usd
CY2009Q4	mmm	Deferred Tax Assets Operating Loss And Capital Loss Carryforwards DeferredTaxAssetsOperatingLossAndCapitalLossCarryforwards	59000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	2178000000	usd
CY2009Q4	us-gaap	Deferred Tax Liabilities Goodwill And Intangible Assets Intangible Assets DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets	662000000	usd
CY2009Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	1318000000	usd
CY2009Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	2155000000	usd
CY2010	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	262000000	usd
CY2009	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	244000000	usd
CY2008	us-gaap	Lease And Rental Expense LeaseAndRentalExpense	247000000	usd
CY2010Q4	mmm	Primary Capital Leases Number PrimaryCapitalLeasesNumber	2	number
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due Current CapitalLeasesFutureMinimumPaymentsDueCurrent	17000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due In Two Years CapitalLeasesFutureMinimumPaymentsDueInTwoYears	18000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due In Three Years CapitalLeasesFutureMinimumPaymentsDueInThreeYears	18000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due In Four Years CapitalLeasesFutureMinimumPaymentsDueInFourYears	17000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due In Five Years CapitalLeasesFutureMinimumPaymentsDueInFiveYears	4000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due Thereafter CapitalLeasesFutureMinimumPaymentsDueThereafter	37000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Due CapitalLeasesFutureMinimumPaymentsDue	111000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Interest Included In Payments CapitalLeasesFutureMinimumPaymentsInterestIncludedInPayments	5000000	usd
CY2010Q4	us-gaap	Capital Lease Obligations Current CapitalLeaseObligationsCurrent	12000000	usd
CY2010Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	139000000	usd
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CY2010Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	41000000	usd
CY2010Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	25000000	usd
CY2010Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	64000000	usd
CY2010Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	442000000	usd
CY2010Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	27000000	usd
CY2009Q4	us-gaap	Standard Product Warranty Accrual StandardProductWarrantyAccrual	25000000	usd
CY2010	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1830000000	usd
CY2009	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	69000000	usd
CY2008	us-gaap	Payments To Acquire Businesses Net Of Cash Acquired PaymentsToAcquireBusinessesNetOfCashAcquired	1394000000	usd
CY2010	mmm	Increase Decrease In Parent Company Equity Due To Transactions With Noncontrolling Interests IncreaseDecreaseInParentCompanyEquityDueToTransactionsWithNoncontrollingInterests	4128000000	usd
CY2009	mmm	Increase Decrease In Parent Company Equity Due To Transactions With Noncontrolling Interests IncreaseDecreaseInParentCompanyEquityDueToTransactionsWithNoncontrollingInterests	3112000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Receivables BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables	93000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Inventory BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory	77000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Prepaid Expense And Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaidExpenseAndOtherAssets	43000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Marketable Securities BusinessAcquisitionPurchasePriceAllocationCurrentAssetsMarketableSecurities	380000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	106000000	usd
CY2010Q4	mmm	Business Acquisition Purchase Price Allocation Amortizable And Not Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableAndNotAmortizableIntangibleAssets	663000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	980000000	usd
CY2010Q4	mmm	Business Acquisition Purchase Price Allocation Current Liabilities Accounts Payable And Other Liabilities Net Of Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccountsPayableAndOtherLiabilitiesNetOfOtherAssets	164000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Notes Payable And Long Term Debt BusinessAcquisitionPurchasePriceAllocationNotesPayableAndLongTermDebt	105000000	usd
CY2010Q4	mmm	Business Acquisition Purchase Price Allocation Liabilities Deferred Business Acquisition Purchase Price Allocation Deferred Income Taxes Asset Liability Net BusinessAcquisitionPurchasePriceAllocationLiabilitiesDeferredBusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesAssetLiabilityNet	-225000000	usd
CY2010Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	1848000000	usd
CY2010Q4	us-gaap	Business Acquisition Cost Of Acquired Entity Equity Interests Issued And Issuable BusinessAcquisitionCostOfAcquiredEntityEquityInterestsIssuedAndIssuable	18000000	usd
CY2010	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	2105000000	usd
CY2010	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	275000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Receivables BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables	31000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Inventory BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory	10000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	15000000	usd
CY2009Q4	mmm	Business Acquisition Purchase Price Allocation Amortizable And Not Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableAndNotAmortizableIntangibleAssets	93000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	-25000000	usd
CY2009Q4	mmm	Business Acquisition Purchase Price Allocation Current Liabilities Accounts Payable And Other Liabilities Net Of Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccountsPayableAndOtherLiabilitiesNetOfOtherAssets	21000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Notes Payable And Long Term Debt BusinessAcquisitionPurchasePriceAllocationNotesPayableAndLongTermDebt	18000000	usd
CY2009Q4	mmm	Business Acquisition Purchase Price Allocation Liabilities Deferred Business Acquisition Purchase Price Allocation Deferred Income Taxes Asset Liability Net BusinessAcquisitionPurchasePriceAllocationLiabilitiesDeferredBusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesAssetLiabilityNet	-16000000	usd
CY2009Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	69000000	usd
CY2009	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	73000000	usd
CY2009	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	4000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Receivables BusinessAcquisitionPurchasePriceAllocationCurrentAssetsReceivables	146000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Inventory BusinessAcquisitionPurchasePriceAllocationCurrentAssetsInventory	170000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Current Assets Prepaid Expense And Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentAssetsPrepaidExpenseAndOtherAssets	15000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Property Plant And Equipment BusinessAcquisitionPurchasePriceAllocationPropertyPlantAndEquipment	161000000	usd
CY2008Q4	mmm	Business Acquisition Purchase Price Allocation Amortizable And Not Amortizable Intangible Assets BusinessAcquisitionPurchasePriceAllocationAmortizableAndNotAmortizableIntangibleAssets	794000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Goodwill Amount BusinessAcquisitionPurchasePriceAllocationGoodwillAmount	1392000000	usd
CY2008Q4	mmm	Business Acquisition Purchase Price Allocation Current Liabilities Accounts Payable And Other Liabilities Net Of Other Assets BusinessAcquisitionPurchasePriceAllocationCurrentLiabilitiesAccountsPayableAndOtherLiabilitiesNetOfOtherAssets	304000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Notes Payable And Long Term Debt BusinessAcquisitionPurchasePriceAllocationNotesPayableAndLongTermDebt	809000000	usd
CY2008Q4	mmm	Business Acquisition Purchase Price Allocation Liabilities Deferred Business Acquisition Purchase Price Allocation Deferred Income Taxes Asset Liability Net BusinessAcquisitionPurchasePriceAllocationLiabilitiesDeferredBusinessAcquisitionPurchasePriceAllocationDeferredIncomeTaxesAssetLiabilityNet	-171000000	usd
CY2008Q4	us-gaap	Business Acquisition Purchase Price Allocation Assets Acquired Liabilities Assumed Net BusinessAcquisitionPurchasePriceAllocationAssetsAcquiredLiabilitiesAssumedNet	1394000000	usd
CY2008	us-gaap	Payments To Acquire Businesses Gross PaymentsToAcquireBusinessesGross	1459000000	usd
CY2008	us-gaap	Cash Acquired From Acquisition CashAcquiredFromAcquisition	65000000	usd
CY2010Q4	mmm	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	9000000	usd
CY2009Q4	mmm	Available For Sale Securities Gross Unrealized Losses1 AvailableForSaleSecuritiesGrossUnrealizedLosses1	12000000	usd
CY2010Q4	mmm	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	5000000	usd
CY2009Q4	mmm	Availableforsale Securities Gross Unrealized Gain AvailableforsaleSecuritiesGrossUnrealizedGain	3000000	usd
CY2010Q4	mmm	Deferred Tax Assets Deferred Expense Miscellaneous Accruals DeferredTaxAssetsDeferredExpenseMiscellaneousAccruals	175000000	usd
CY2009Q4	mmm	Deferred Tax Assets Deferred Expense Miscellaneous Accruals DeferredTaxAssetsDeferredExpenseMiscellaneousAccruals	180000000	usd
CY2010Q4	mmm	Deferred Tax Assets Foreign Tax Credits DeferredTaxAssetsForeignTaxCredits	281000000	usd
CY2009Q4	mmm	Deferred Tax Assets Foreign Tax Credits DeferredTaxAssetsForeignTaxCredits	286000000	usd
CY2010Q4	mmm	Available For Sale Securities Fair Value Lesser Credit Ratings Disclosure AvailableForSaleSecuritiesFairValueLesserCreditRatingsDisclosure	2000000	usd
CY2010Q4	mmm	Available For Sale Securities Fair Value Number Of Securities Disclosure AvailableForSaleSecuritiesFairValueNumberOfSecuritiesDisclosure	2
CY2010Q4	mmm	Convertible Notes Long Term Debt Maturities Repayments Of Principal In Next Twenty Four Months ConvertibleNotesLongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwentyFourMonths	226000000	usd
CY2010Q4	mmm	Floating Rate Long Term Debt Maturities Repayments Of Principal In Next Thirty Six Months FloatingRateLongTermDebtMaturitiesRepaymentsOfPrincipalInNextThirtySixMonths	73000000	usd
CY2010	us-gaap	Unrecognized Tax Benefits Decreases Resulting From Settlements With Taxing Authorities UnrecognizedTaxBenefitsDecreasesResultingFromSettlementsWithTaxingAuthorities	51000000	usd
CY2010Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	125000000	usd
CY2009Q4	us-gaap	Indefinite Lived Trade Names IndefiniteLivedTradeNames	129000000	usd
CY2010	mmm	Derivative Instruments Gain Loss Reclassification From Accumulated Oci To Income Estimate Of Time To Transfer DerivativeInstrumentsGainLossReclassificationFromAccumulatedOCIToIncomeEstimateOfTimeToTransfer	12 months
CY2007Q4	mmm	Share Based Compensation Arrangement By Share Based Payment Award Vesting Period Buyout Grant Of Restricted Stock Units ShareBasedCompensationArrangementByShareBasedPaymentAwardVestingPeriodBuyoutGrantOfRestrictedStockUnits	5	years
CY2008Q4	us-gaap	Acquired Finite Lived Intangible Asset Amount AcquiredFiniteLivedIntangibleAssetAmount	794000000	usd
CY2008	us-gaap	Restructuring Reserve Period Expense RestructuringReservePeriodExpense	229000000	usd
CY2010Q4	us-gaap	Capital Leases Future Minimum Payments Present Value Of Net Minimum Payments CapitalLeasesFutureMinimumPaymentsPresentValueOfNetMinimumPayments	106000000	usd
CY2010	mmm	Cash And Cash Equivalents Classification When Aquired Maturity Period Maximum CashAndCashEquivalentsClassificationWhenAquiredMaturityPeriodMaximum	3	years
CY2010	mmm	Marketable Securities Classification Noncurrent Holding Period Minimum MarketableSecuritiesClassificationNoncurrentHoldingPeriodMinimum	1	years
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3754000000	usd
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-3543000000	usd
CY2009	us-gaap	Derivative Instruments Not Designated As Hedging Instruments Gain Loss Net DerivativeInstrumentsNotDesignatedAsHedgingInstrumentsGainLossNet	-20000000	usd
CY2010Q2	mmm	Minority Interest Decrease To Noncontrolling Interest Transfers Of Ownership MinorityInterestDecreaseToNoncontrollingInterestTransfersOfOwnership	24000000	usd
CY2010Q1	mmm	Minority Interest Decrease To Noncontrolling Interest Transfers Of Ownership MinorityInterestDecreaseToNoncontrollingInterestTransfersOfOwnership	22000000	usd
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	374000000	usd
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Foreign Currency Translation Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentNetOfTax	122000000	usd
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3879000000	usd
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Defined Benefit Pension And Other Postretirement Plans Net Of Tax AccumulatedOtherComprehensiveIncomeLossDefinedBenefitPensionAndOtherPostretirementPlansNetOfTax	3831000000	usd
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-6000000	usd
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax AccumulatedOtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	-9000000	usd
CY2010Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-32000000	usd
CY2009Q4	us-gaap	Accumulated Other Comprehensive Income Loss Cumulative Changes In Net Gain Loss From Cash Flow Hedges Effect Net Of Tax AccumulatedOtherComprehensiveIncomeLossCumulativeChangesInNetGainLossFromCashFlowHedgesEffectNetOfTax	-36000000	usd
CY2010	us-gaap	Other Comprehensive Income Loss Net Of Tax Period Increase Decrease OtherComprehensiveIncomeLossNetOfTaxPeriodIncreaseDecrease	209000000	usd
CY2010Q4	mmm	Defined Benefit Plan Number Of Plans Worldwide Minimum DefinedBenefitPlanNumberOfPlansWorldwideMinimum	60	pure

Files In Submission

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2010 Q4 Form 8-K Financial Statement

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2010 Q4 Form 8-K Financial Statement

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3M CO Stock $mmm