Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Portion At Fair Value Fair Value Disclosure Portion at Fair Value Measurement [Member] Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Subsequent Event Subsequent Event [Member] Carrying value Reported Value Measurement [Member] Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] Schedule of Expected Amortization Expense for Acquired Amortizable Intangible Assets Intangible Asset, Finite-Lived, and Capitalized Cost, Software to be Sold, Leased, or Marketed, Estimated Amortization Expense [Table Text Block] Restructuring Plan [Axis] Restructuring Plan [Axis] Environmental Matters - Regulatory Activities Environmental Matters Regulatory Activities [Member] Regulatory activities involving perfluorinated compounds (PFCs) and perfluorooctanyl compounds (PFOA or PFOS). Other assets Disposal Group, Including Discontinued Operation, Other Assets Accrued payroll Employee-related Liabilities, Current Pension and Postretirement Benefit Plans Retirement Benefits [Text Block] Loss contingency accrual Loss Contingency Accrual Number of sites Number of Work Sites Number of Work Sites Proceeds from maturities and sale of marketable securities and investments Proceeds from Sale, Maturity and Collection of Investments Derivative Instrument [Axis] Derivative Instrument [Axis] Maturities of long-term debt Maturities of Long-Term Debt [Abstract] Approximate number of miles of a river seeking to be cleaned Loss Contingency Approximate Miles Of River To Be Cleaned Number The approximate number of miles of the river plaintiffs are seeking to be cleaned. Measurement Frequency [Axis] Measurement Frequency [Axis] Issuances pursuant to stock option and benefit plans Stock Issued During Period, Value, Stock Options Exercised And Employee Benefit Plan Stock Issued During Period, Value, Stock Options Exercised And Employee Benefit Plan Proceeds from sale of PP&E and other assets Proceeds from Sale of Productive Assets Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Assets held for sale Disposal Group, Including Discontinued Operation, Assets [Abstract] Asset backed securities and certificates of/time deposits Asset-Backed Securities [Member] Property, plant, and equipment Business Combination, Recognized Asset Acquired, Property, Plant, and Equipment Other comprehensive income (loss), net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Acquired intangible assets disclosures Intangible Asset, Finite-Lived, Acquired [Line Items] Claims dismissed Loss Contingency, Claims Dismissed, Number Number of commercial drum conditioning facilities Number Of Commercial Drum Conditioning Facilities The number of commercial drum conditioning facilities. Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Cash and cash equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Reclassification out of Accumulated Other Comprehensive Income (Loss) Reclassification out of Accumulated Other Comprehensive Income [Member] Exchange [Domain] Exchange [Domain] Intangible assets — net Total intangible assets — net Intangible Asset, Excluding Goodwill, after Accumulated Amortization Retirement Benefits [Abstract] Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Number of cases transferred to other cases Number Of Cases Transferred To Other Cases Number Of Cases Transferred To Other Cases Number of business segments Number of Reportable Segments Total current liabilities Liabilities, Current Number of pending cases filed in state court Number Of Pending Cases Filed In State Court Number Of Pending Cases Filed In State Court Short Term Debt Type [Domain] Short-Term Debt, Type [Domain] Europe, Middle East and Africa EMEA [Member] Entity Address, City or Town Entity Address, City or Town Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] International Foreign Plan [Member] Net carrying amount Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Inventories Inventory, Net [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Electrical Markets Electrical Markets [Member] Safety and Industrial - Electrical Markets Total other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] United States UNITED STATES Subsequent Event Type [Axis] Subsequent Event Type [Axis] Germany Litigation PFAS Germany Litigation [Member] PFAS Germany Litigation Cash flow hedging instruments Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Three Point Five Zero Percent Notes Due 2028 Three Point Five Zero Percent Notes Due 2028 [Member] Three Point Five Zero Percent Notes Due 2028 Schedule of Business Segment Information Segment Reporting [Table Text Block] Customer related Customer-Related Intangible Assets [Member] Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Document Period End Date Document Period End Date Liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Foreign currency forward/option contracts and cross-currency swaps Foreign Exchange Forward And Cross-Currency Swaps [Member] Foreign Exchange Forward And Cross-Currency Swaps Principal amount Debt Instrument, Face Amount Term of debt instrument Debt Instrument, Term Treasury stock, at cost Treasury Stock, Common, Value Proceeds from investment by noncontrolling interest Proceeds from Noncontrolling Interests Number of chemical suppliers in complaint Number Of Chemical Suppliers In Complaint Number Of Chemical Suppliers In Complaint Reclassification out of Accumulated Other Comprehensive Income [Domain] Reclassification out of Accumulated Other Comprehensive Income [Domain] Area of land Area of Land Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Consolidation Items [Domain] Consolidation Items [Domain] Five year line of credit Five Year Line Of Credit [Member] Five-year credit facility agreement with JP Morgan Chase, Citigroup and Deutsche Bank Current liability Operating Lease, Liability, Current Definite-lived tradenames Trademarks and Trade Names [Member] Gordon Country, Georgia Gordon Country, Georgia [Member] Gordon Country, Georgia Earnings Per Share Earnings Per Share [Text Block] AFF MDL Personal Injury AFF MDL Personal Injury [Member] AFF MDL Personal Injury Earnings Per Share [Abstract] Face amount of debt designated as a net investment hedge (in euros) Portion Of Debt Instrument Designated As Net Investment Hedge The amount of debt that was designated as a hedging instrument for a net investment hedge relationship. Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol 4.100% Notes due 2034 Notes 4.100 Percent Due 2034 [Member] Notes 4.100 Percent Due 2034 Available-for-sale marketable securities Debt Securities, Available-for-Sale, Excluding Accrued Interest Purchases of property, plant and equipment (PP&E) Payments to Acquire Property, Plant, and Equipment Manufactured PFAS products Manufactured PFAS Products Manufactured PFAS Products Pre-tax charge on product liability Product Liability Accrual, Period Expense Schedule of Purchase Price Allocations Related to the Acquisition Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Credit Facility [Domain] Credit Facility [Domain] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cross Currency Interest Rate Contract Cross Currency Interest Rate Contract [Member] Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Other disease claims Loss Contingency, Other Disease Claims Loss Contingency, Other Disease Claims Environmental Matters Future PFAS-Related Claims Environmental Matters Future PFAS-Related Claims [Member] Environmental Matters Future PFAS-Related Claims Automotive and Aerospace Automotive And Aerospace [Member] Transportation and Electronics - Automotive and Aerospace Madison Fire & Rescue Madison Fire & Rescue [Member] Madison Fire & Rescue Schedule of Assets and Liabilities Classified as Held for Sale Disposal Groups, Including Discontinued Operations [Table Text Block] Other Other Intangible Assets [Member] Other — net Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] CAE Settlement CAE Settlement [Member] CAE Settlement Level 1 Fair Value, Inputs, Level 1 [Member] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Valuation allowance on assets held for sale Disposal Group, Including Discontinued Operation, Valuation Allowance On Assets Held For Sale Disposal Group, Including Discontinued Operation, Valuation Allowance On Assets Held For Sale Available-for-sale marketable securities: Debt Securities, Available-for-Sale [Abstract] Dilution associated with stock-based compensation plans (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Income of consolidated group Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Schedule of Gain (Loss) on Derivative and Non-Derivative Instruments Designated as Net Investment Hedges Schedule of Net Investment Hedges, Statements of Financial Performance and Financial Position, Location [Table Text Block] Right of use assets Operating Lease, Right-of-Use Asset AOCI Attributable to 3M, Net of Tax Roll Forward AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Net assets acquired Business Combination, Recognized Asset Acquired to Liability Assumed, Excess (Less), and Goodwill Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Dividends paid to shareholders Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date 2030 Long-Term Debt, Maturity, Year Four Hedging Relationship [Axis] Hedging Relationship [Axis] Number of locations, samples collected Number Of Locations For Sample Collections Number Of Locations For Sample Collections Respirator Mask/Asbestos Litigation - State of West Virginia Respirator Mask Asbestos Litigation West Virginia [Member] Complaint filed by the State of West Virginia seeking damages for reimbursement of the costs allegedly incurred for worker's compensation and healthcare benefits provided to all workers with occupational pneumoconiosis. Americas Americas [Member] Total equity Balance at the beginning of the period Balance at the end of the period Equity, Including Portion Attributable to Noncontrolling Interest Estimate of possible settlement amount Loss Contingency, Estimate of Possible Loss Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Other Income and Expenses [Abstract] Supplemental Income Statement Information Other Nonoperating Income and Expense [Text Block] Research, development and related expenses Research, development and related expenses Research, Development And Related Expenses The aggregate costs incurred during an accounting period to research and develop new products/technologies when the technological feasibility has not been reached, and related expenses, which primarily include technical support provided by 3M to customers who are using existing 3M products; internally developed patent costs, which include costs and fees incurred to prepare, file, secure and maintain patents; and amortization of acquired patents. Number of tentative trial dates of the lawsuits are set for January 2026 Number Of Tentative Trial Dates Of The Lawsuits Are Set For January 2026 Number Of Tentative Trial Dates Of The Lawsuits Are Set For January 2026 Environmental Matters - Aqueous Film Forming Foam Litigation Environmental Matters Aqueous Film Forming Foam Litigation [Member] Litigation related to Aqueous Film Forming Foam (AFFF) environmental issues. Cash flows from investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Litigation Status [Axis] Litigation Status [Axis] Number of cases to undergo further discovery Loss Contingency, Number Of Cases To Undergo Further Discovery Loss Contingency, Number Of Cases To Undergo Further Discovery Legal Proceedings Legal Costs, Policy [Policy Text Block] Segments [Domain] Segments [Domain] Cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Long-Term Debt and Short-Term Borrowings Debt Disclosure [Text Block] Participation threshold (as a percent) Litigation Settlement, Participation Threshold, Percentage Litigation Settlement, Participation Threshold, Percentage Disposal Group Classification [Domain] Disposal Group Classification [Domain] Non-operating expense Defined Benefit Plan, Nonoperating Expense (Benefit) [Abstract] Defined Benefit Plan, Nonoperating Expense (Benefit) Marketable security, gain (loss) Marketable Security, Gain (Loss) Business Combination [Table] Business Combination [Table] Acquisitions, Redeemable Noncontrolling Interest and Divestitures Mergers, Acquisitions and Dispositions Disclosures [Text Block] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Marketable securities by contractual maturity Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Total operating expenses Total Corporate Costs and Expenses After 2031 Long-Term Debt, Maturity, after Year Five Other comprehensive income (loss), before tax: Other Comprehensive Income (Loss), before Tax Period Change [Abstract] Interest rate Debt Instrument, Interest Rate, Stated Percentage Dividends declared Dividends, Common Stock, Cash Total 3M Company shareholders’ equity Equity, Attributable to Parent Entity Listings, Exchange [Axis] Entity Listings, Exchange [Axis] Repayment of debt (maturities greater than 90 days) Repayments of debt Repayments of Debt, Maturing in More than Three Months Disposal Group, Disposed of by Sale, Not Discontinued Operations Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Miles from the plant Loss Contingency Approximate Miles From The Plant Loss Contingency Approximate Miles From The Plant Assets Assets [Abstract] 2025-2026 Transformation Costs 2025-2026 Transformation Costs [Member] 2025-2026 Transformation Costs Fair Value on a Nonrecurring Basis Fair Value, Nonrecurring [Member] Insider Trading Policies and Procedures [Line Items] Allowances for doubtful accounts receivable Accounts Receivable, Allowance for Credit Loss, Current Product Liability Litigation Product Liability Contingency [Line Items] Company pension and postretirement contributions Payment Of Pension And Other Postretirement Benefit Contributions Amount of payment for pension and other postretirement contributions. Fire Safety and Rescue Fire Safety and Rescue [Member] Fire Safety and Rescue Deferred income taxes Deferred Income Tax Expense (Benefit) Supplemental Balance Sheet Information Supplemental Balance Sheet Disclosures [Text Block] Unsecured Term Loan Facility Unsecured Term Loan Facility [Member] Unsecured Term Loan Facility Weighted average number of antidilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Schedule of Goodwill Goodwill [Table Text Block] Entity Central Index Key Entity Central Index Key Three Point Nine Zero Percent Notes Due 2031 Three Point Nine Zero Percent Notes Due 2031 [Member] Three Point Nine Zero Percent Notes Due 2031 Floyd County and Whitfield County, Georgia Floyd County And Whitfield County, Georgia [Member] Floyd County And Whitfield County, Georgia Investment by noncontrolling interest Adjustments To Additional Paid In Capital, Investment By Noncontrolling Interest Adjustments To Additional Paid In Capital, Investment By Noncontrolling Interest Less: accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Additional paid-in capital Additional Paid in Capital, Common Stock Electronics Electronics [Member] Transportation and Electronics - Electronics Equity Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Remainder of 2026 Long-Term Debt, Maturity, Remainder of Fiscal Year Total liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities Belgian Civil Litigation PFAS Belgian Civil Litigation [Member] PFAS Belgian Civil Litigation Present value of estimated possible loss Loss Contingency, Present Value Of Estimated Possible Loss Loss Contingency, Present Value Of Estimated Possible Loss Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Foreign currency denominated debt Foreign Currency Denominated Debt [Member] This element represents foreign currency denominated debt. Accumulated other comprehensive income (loss) AOCI AOCI Attributable to Parent [Member] Number of separate lawsuits filed Number Of Separate Lawsuits Filed Number Of Separate Lawsuits Filed All Individuals All Individuals [Member] Total non-current assets Assets, Noncurrent Total assets Assets Earnings per share attributable to 3M common shareholders: Earnings per share attributable to 3M common shareholders: Earnings Per Share Attributable To 3M Common shareholder [Abstract] Earnings Per Share Attributable To 3M Common shareholder Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Schedule of Net Deferred Tax Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Operating Segments Operating Segments [Member] Interest expense Interest Expense, Nonoperating PEO PEO [Member] Product Liability Contingency [Table] Product Liability Contingency [Table] 2028 Long-Term Debt, Maturity, Year Two Other liabilities Other Liabilities, Noncurrent Goodwill Goodwill Balance at the beginning of the period Balance at the end of the period Goodwill Retirement Plan Type [Axis] Retirement Plan Type [Axis] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Retained earnings Retained Earnings [Member] Noncurrent liability Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Net loss (income) attributable to noncontrolling interests Net Income (Loss) Attributable to Nonredeemable Noncontrolling Interest Depreciation and amortization Depreciation, Depletion And Amortization, Adjusted Depreciation, Depletion And Amortization, Adjusted Increase (decrease) in equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Cumulative translation adjustment Accumulated Foreign Currency Adjustment Attributable to Parent [Member] Schedule of Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table Text Block] Corporate debt Corporate Debt Securities [Member] Earnings per share — diluted (in dollars per share) Earnings Per Share, Diluted Unrealized gain on investments Unrealized Gain (Loss) on Investments Litigation Case [Domain] Litigation Case [Domain] Amortization expense Intangible Asset, Finite-Lived, Amortization Expense Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Schedule of Offsetting Assets Offsetting Assets [Table Text Block] Number of unnamed defendant Number of Unnamed Defendants The number of unnamed defendants. Number of additional putative nationwide class action lawsuits filed Number Of Additional Putative Nationwide Class Action Lawsuits Filed Number Of Additional Putative Nationwide Class Action Lawsuits Filed Number of cases moved to federal court Number Of Cases Moved To Federal Court Number Of Cases Moved To Federal Court Net sales Revenue from Contract with Customer, Excluding Assessed Tax Inventories Disposal Group, Including Discontinued Operation, Inventory Accrual, net Loss Contingency Accrual, Product Liability, Net Other comprehensive income (loss), net of tax Other Comprehensive Income (Loss), Net Of Tax, Including Portion Attributable To Nonredeemable Noncontrolling Interest Other Comprehensive Income (Loss), Net Of Tax, Including Portion Attributable To Nonredeemable Noncontrolling Interest Indefinite lived intangible assets Indefinite-Lived Trade Names Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Current Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Abrasives Abrasives [Member] Safety and Industrial - Abrasives Inventories Inventories, Adjusted Inventories, Adjusted Schedule of Future Maturities of Long-Term Debt Schedule of Maturities of Long-Term Debt [Table Text Block] Other PFAS-Related And Environmental Litigation Other PFAS-Related And Environmental Litigation [Member] Other PFAS-Related And Environmental Litigation Operating income Operating Income (Loss) Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost Respirator Mask/Asbestos Litigation Respirator Mask Asbestos Litigation [Member] Litigation with multiple co-defendants alleging personal injury resulting from use of the entity's mask and respirator products or workplace injury resulting from the manufacture of the entity's products. Long-lived asset impairment charges Asset, Impairment Loss Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Common stock, issued (in shares) Common Stock, Shares, Issued Finished goods Inventory, Finished Goods, Gross Venture-related net put right Venture-Related Net Put Right, Fair Value Venture-Related Net Put Right, Fair Value Alabama ALABAMA Roofing Granules Roofing Granules [Member] Safety and Industrial - Roofing Granules Accounts receivable Increase (Decrease) in Accounts Receivable Products and Services [Domain] Product and Service [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Gain (loss) on derivative recognized in income Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net Amount Reclassified from Accumulated Other Comprehensive Income Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items] Termination Date Trading Arrangement Termination Date Pension and postretirement benefits Disposal Group, Including Discontinued Operation, Pension And Postretirement Benefits Disposal Group, Including Discontinued Operation, Pension And Postretirement Benefits Number of respirators sold Loss Contingency, Number Of Respirators Sold Loss Contingency, Number Of Respirators Sold Dalton, Georgia Dalton, Georgia [Member] Dalton, Georgia Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Defined benefit pension and postretirement plans adjustment Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Number of defendant remains in the action, preventing the dismissal order from becoming final Number Of Defendant Remains In The Action, Preventing The Dismissal Order From Becoming Final Number Of Defendant Remains In The Action, Preventing The Dismissal Order From Becoming Final Other current liabilities Other Liabilities, Current Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Goodwill [Table] Goodwill [Table] Increase (decrease) in redeemable noncontrolling interest Increase (Decrease) in Temporary Equity [Roll Forward] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Number of total claims the Company prevailed after being taken to trial Loss Contingency Claims Prevailed After Taken To Trial Number The number of claims that the Company prevailed after being taken to trial. Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Gross carrying amount Intangible Asset, Finite-Lived, before Accumulated Amortization Net sales Revenues Expected payment Loss Contingency, Expected Payment Loss Contingency, Expected Payment Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Total marketable securities Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Goodwill Goodwill [Roll Forward] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Outstanding balances of confirmed invoices Supplier Finance Program, Obligation All Award Types Award Type [Domain] Fair Value Measurements and Marketable Securities Fair Value Disclosures [Text Block] NYSE Texas, Inc. NYSE TEXAS, INC. [Member] Level 3 Fair Value, Inputs, Level 3 [Member] 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One Business Combination, Separately Recognized Transaction [Table] Business Combination, Separately Recognized Transaction [Table] Geographical [Axis] Geographical [Axis] Legal Entity [Axis] Legal Entity [Axis] Interest expense related to outstanding debt Interest Expense, Debt Carrying value of the hedged (and formerly hedged) liabilities Hedged Liability, Fair Value Hedge Reacquired stock Treasury Stock, Value, Acquired, Cost Method Commercial Branding and Transportation Commercial Branding And Transportation [Member] Transportation and Electronics - Commercial Solutions Cash and cash equivalents at beginning of year Cash and cash equivalents at end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Non-NEOs Non-NEOs [Member] Cash paid Payments to Acquire Businesses, Gross 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Other AFFF Cases Other AFFF Cases [Member] Other AFFF Cases Packaging and Expression Packaging And Expression [Member] Packaging And Expression Proceeds from debt (maturities greater than 90 days) Proceeds from Debt, Maturing in More than Three Months Environmental Matters - Chambers Works And Other Elements Environmental Matters Chambers Works And Other Elements [Member] Environmental Matters Chambers Works And Other Elements Net amount of derivative liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral 2027 Long-Term Debt, Maturity, Year One Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Participating claimants in settlement (as a percentage) Claimants Participating Percentage In Settlement Claimants Participating Percentage In Settlement Purchases of treasury stock Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Cost of sales Cost of Revenue Award Type Award Type [Axis] Accounts payable and other liabilities Business Combination, Recognized Liability Assumed, Accounts Payable And Other Liabilities Business Combination, Recognized Liability Assumed, Accounts Payable And Other Liabilities Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Investment by noncontrolling interest Noncontrolling Interest, Investment By Redeemable Noncontrolling Interest Noncontrolling Interest, Investment By Redeemable Noncontrolling Interest Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Product and Service [Axis] Product and Service [Axis] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Pension Plan Pension Plan [Member] Common Stock, Par Value $.01 Per Share Common Stock [Member] Reclassification out of Accumulated Other Comprehensive Income [Table] Reclassification out of Accumulated Other Comprehensive Income [Table] Net costs for significant litigation and PFAS exit Litigation Settlement, Fee Expense Expected amortization expense for acquired intangible assets recorded as of balance sheet date Intangible Asset, Finite-Lived, after Accumulated Amortization, Estimated Amortization Expense, Fiscal Year Maturity [Abstract] Derivative Contract [Domain] Derivative Contract [Domain] Translation and other Goodwill, Foreign Currency Translation, Gain (Loss) Number of cities, where litigation was received Number Of Cities, Where Litigation Was Received Number Of Cities, Where Litigation Was Received Settlement, duration (in years) Loss Contingency, Accrual, Duration Loss Contingency, Accrual, Duration Total liabilities, redeemable noncontrolling interest and equity Liabilities and Equity Employee Stock Option Share-Based Payment Arrangement, Option [Member] Number of cases sought to be moved to federal court Number Of Cases Sought To Be Moved To Federal Court Number Of Cases Sought To Be Moved To Federal Court Amounts reclassified out Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Nonredeemable noncontrolling interest Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location Schedule of Fair Value Hedging Instruments, Statements of Financial Performance and Financial Position, Location [Table Text Block] Restructuring charges Restructuring Charges Tabular List, Table Tabular List [Table Text Block] 2029 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Three Corporate-level (expense) income Other Operating Income (Expense), Net Remainder of 2026 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Remainder of Fiscal Year Name Awards Close in Time to MNPI Disclosures, Individual Name Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Cumulative translation adjustment attributable to noncontrolling interests Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Noncontrolling Interest April 2026 Revolving Credit Facility April 2026 Revolving Credit Facility [Member] April 2026 Revolving Credit Facility Raw materials and supplies Inventory, Raw Materials and Supplies, Gross Quarterly fee paid to Cabot to retain responsibility and liability for products Quarterly Fee Paid to Co Defendant for Retention of Liability The quarterly fee paid to a co-defendant to retain responsibility, and liability for and indemnify the entity's subsidiary against product liability claims for respirators manufactured prior to July 11, 1995. Adjustment to Compensation: Adjustment to Compensation [Axis] Marketable security, unrealized gain (loss) Marketable Security, Unrealized Gain (Loss) Schedule of Finite-Lived Asset Weighted Average Lives Business Combination, Intangible Asset, Acquired, Finite-Lived [Table Text Block] Restructuring Cost and Reserve Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Marketable securities Debt Securities, Available-for-Sale, Excluding Accrued Interest, Current Hedging Designation [Axis] Hedging Designation [Axis] Credit Facility [Axis] Credit Facility [Axis] Restructuring Actions Restructuring and Related Activities Disclosure [Text Block] Income from unconsolidated subsidiaries, net of taxes Income (Loss) from Subsidiaries, Net of Tax Proceeds from (payments for) sale of businesses, net of cash sold Payments For (Proceeds From) Divestiture Of Business Payments For (Proceeds From) Divestiture Of Business Name Measure Name Pay vs Performance Disclosure [Line Items] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Transformation costs Transformation Costs Transformation Costs Debt instrument [Line Items] Debt Instrument [Line Items] Non-AFFF Firefighter Turnout Gear MDL Non-AFFF Firefighter Turnout Gear MDL [Member] Non-AFFF Firefighter Turnout Gear MDL Safety and Industrial Safety And Industrial Segment [Member] Business segment - 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Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Property, plant and equipment — net Disposal Group, Including Discontinued Operation, Property, Plant, and Equipment Property, Plant & Equipment Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province Total number of named claimants Loss Contingency, Number of Plaintiffs PEO Total Compensation Amount PEO Total Compensation Amount Cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Assets: Assets, Fair Value Disclosure [Abstract] Capital expenditures Segment Reporting, Long-Lived Asset, Expenditure for Addition Derivative, notional amount Derivative, Notional Amount Weighted average 3M common shares outstanding — basic (in shares) Weighted average 3M common shares outstanding – basic (in shares) Weighted Average Number of Shares Outstanding, Basic Goodwill, accumulated impairment loss Goodwill, Impaired, Accumulated Impairment Loss Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table] Loss contingencies Loss Contingencies [Line Items] Number of existing lawsuits added Number Of Existing Lawsuits Added Number Of Existing Lawsuits Added MICHIGAN MICHIGAN Murray, Whitfield, Gordon, and Catoosa Murray, Whitfield, Gordon, And Catoosa [Member] Murray, Whitfield, Gordon, And Catoosa MAINE MAINE Current and other assets Business Combination, Recognized Asset Acquired, Other Current And Noncurrent Business Combination, Recognized Asset Acquired, Other Current And Noncurrent Interest income Interest and Other Income MASSACHUSETTS MASSACHUSETTS Pending Litigation Pending Litigation [Member] Benefit Plan Information Defined Benefit Plan Disclosure [Line Items] Commercial paper outstanding Commercial Paper Solventum spin-off Solventum spin-off Stockholders' Equity Note, Spinoff Transaction Supplemental information: Business Combination, Consideration Transferred [Abstract] Document Information Document Information [Line Items] Total assets held for sale Disposal Group, Including Discontinued Operation, Assets Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Accumulated amortization Intangible Asset, Finite-Lived, Accumulated Amortization Maximum borrowing capacity including portion subject to lender approval Line of Credit Facility, Maximum Borrowing Capacity Number of initial plaintiffs Number Of Initial Plaintiffs Number Of Initial Plaintiffs New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] Nonredeemable noncontrolling interest Noncontrolling Interest [Member] Solventum ownership - change in value Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee Domestic Plan Domestic Plan [Member] Unsecured Debt Unsecured Debt [Member] Total other comprehensive income (loss), before tax Other Comprehensive Income (Loss), before Tax Finite-lived intangible assets: Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Excluding Goodwill Total Long-Term Debt Changes in assets and liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Net cash provided by (used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Supplemental Equity, Redeemable Noncontrolling Interest, and Comprehensive Income Information Equity [Text Block] Operating expenses Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Schedule of Supplemental Balance Sheet Information Condensed Balance Sheet [Table Text Block] PFAS Contamination PFAS Contamination [Member] PFAS Contamination Business Segments Segment Reporting, Policy [Policy Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Name Outstanding Recovery, Individual Name Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Automotive Aftermarket Automotive Aftermarket [Member] Safety and Industrial - Automotive Aftermarket Geographical Area [Domain] Geographical [Domain] Advanced Materials Advanced Materials [Member] Transportation and Electronics - Advanced Materials Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Pre tax charge Gain (Loss) from Litigation Settlement Natural Resources Defense Settlement Natural Resources Defense Settlement [Member] Natural Resources Defense Settlement Accordion feature, higher borrowing capacity option Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Line of Credit Facility, Accordion Feature, Higher Borrowing Capacity Option Number of decades involved in claims Loss Contingency, Number Of Decades Involved In Claims Loss Contingency, Number Of Decades Involved In Claims Defined benefit pension and postretirement plans adjustment Defined benefit pension and postretirement plans adjustment Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Total of kidney cancer plaintiffs Loss Contingency, Total Of Kidney Cancer Plaintiffs Loss Contingency, Total Of Kidney Cancer Plaintiffs Compensation Amount Outstanding Recovery Compensation Amount Net increase (decrease) in cash and cash equivalents, including cash classified within assets held for sale Net Increase (Decrease) In Cash And Cash Equivalents Including Cash Classified Within Assets Held For Sale Net Increase (Decrease) In Cash And Cash Equivalents Including Cash Classified Within Assets Held For Sale Individual: Individual [Axis] Percentage of voting equity interest acquired Business Combination, Voting Equity Interest Acquired, Percentage Weighted average 3M common shares outstanding — diluted (in shares) Weighted average 3M common shares outstanding – diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Bain Capital Bain Capital [Member] Bain Capital Pension and postretirement benefits Liability, Defined Benefit Plan, Noncurrent Underlying Security Market Price Change Underlying Security Market Price Change, Percent Commercial paper Commercial Paper [Member] Derivatives Derivative Instruments and Hedging Activities Disclosure [Text Block] Number of facilities Loss Contingency, Number Of Facilities Loss Contingency, Number Of Facilities Gross amount of derivative liabilities presented in the consolidated balance sheet Derivative instruments Derivative Liability, Subject to Master Netting Arrangement, before Offset Valuation allowance on liabilities held for sale Disposal Group, Including Discontinued Operation, Valuation Allowance On Liabilities Held For Sale Disposal Group, Including Discontinued Operation, Valuation Allowance On Liabilities Held For Sale Company contributions Defined Benefit Plan, Plan Assets, Contributions by Employer Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Virginia VIRGINIA Environmental Matters - Other PFAS-related Environmental Litigation Environmental Matters Other Pfc Related Environmental Litigation [Member] Litigation related to Environmental Matters Other PFC Related Environmental Litigation. Treasury stock Treasury Stock, Common [Member] Effective portion of net investment hedge reclassified out of other comprehensive income into income Derivatives used in Net Investment Hedge, Gain (Loss), Reclassified to Earnings, Net of Tax Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] PWS Settlement PWS Settlement [Member] PWS Settlement Litigation Status [Domain] Litigation Status [Domain] Proceeds from issuance of treasury stock pursuant to stock option and benefit plans Proceeds from Sale of Treasury Stock All Executive Categories All Executive Categories [Member] U.S. government and treasury securities US Government Debt Securities [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Marketable security, realized gain (loss) Marketable Security, Realized Gain (Loss) Number of additional cases selected for discovery Number Of Additional Cases Selected For Discovery Number Of Additional Cases Selected For Discovery Schedule of Net Periodic Benefit Cost (Benefit) Schedule of Net Benefit Costs [Table Text Block] Redeemable noncontrolling interest Balance at the beginning of the period Balance at the end of the period Redeemable Noncontrolling Interest, Equity, Carrying Amount Home and Auto Care Home And Auto Care [Member] Home And Auto Care Schedule of Computations for Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Business Segments Segment Reporting [Text Block] Minimum Minimum [Member] Number of cross claims filed Number Of Cross Claims Filed Number Of Cross Claims Filed Number of putative class action and other lawsuits Number Of Putative Class Action And Other Lawsuits The number of putative class action and other lawsuits. Schedule of Disaggregated Revenue Disaggregation of Revenue [Table Text Block] Liabilities, redeemable noncontrolling interest and equity Liabilities [Abstract] Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Schedule of Amortization Expense Intangible Asset, Finite-Lived, Amortization Expense [Table Text Block] Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Business Combination [Line Items] Business Combination [Line Items] Pension and postretirement net periodic benefit cost (benefit) Total net periodic benefit cost (benefit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Common stock, authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Fair Value, Recurring Fair Value, Recurring [Member] Business Segment Information Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report China/Hong Kong China And Hong Kong [Member] This element represents the China Hong/Kong geographic region. Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Number of family members awarded Litigation Settlement, Amount Awarded To Other Party, Number Of Plaintiffs Awarded Litigation Settlement, Amount Awarded To Other Party, Number Of Plaintiffs Awarded Settled Litigation Settled Litigation [Member] U.S. municipal securities US States and Political Subdivisions Debt Securities [Member] Common stock and additional paid-in capital Common Stock Including Additional Paid in Capital [Member] Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Accrued restructuring actions Restructuring Reserve Equity Components [Domain] Equity Component [Domain] Patents and technology Patented Technology [Member] Foreign Exchange Contract Foreign currency forward/option contracts and cross-currency swaps Foreign Exchange Contract [Member] Debt instrument, covenant interest ratio Debt Instrument, Covenant, Leverage Ratio, Maximum Debt Instrument, Covenant, Leverage Ratio, Maximum Number of companies neighboring the Zwijndrecht facility Number Of Companies Neighboring The Zwijndrecht Facility Number Of Companies Neighboring The Zwijndrecht Facility Adoption Date Trading Arrangement Adoption Date Schedule of Other Expense (Income), Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Other expense (income), net Total Other expense/(income), net Nonoperating Income (Expense) Solventum common stock Equity Securities, FV-NI, Current Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Consumer Safety and Well-Being Consumer Safety And Well-Being [Member] Consumer Safety And Well-Being Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Number of cases filed in state court Number Of Cases Filed In State Court Number Of Cases Filed In State Court New Jersey Settlement PFAS New Jersey Settlement [Member] PFAS New Jersey Settlement Other — net Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Derivatives in Cash Flow Hedging Relationships Derivative Instruments, Gain (Loss) [Line Items] Selling, general and administrative expenses Selling, general and administrative expenses Selling, General and Administrative Expense Watson Grinding Watson Grinding [Member] Watson Grinding Business Combination [Domain] Business Combination [Domain] Purchase of noncontrolling interest Noncontrolling Interest, Increase from Subsidiary Equity Issuance Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Number of cases declined to transfer Number Of Cases Declined To Transfer Number Of Cases Declined To Transfer Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Net periodic benefit cost (benefit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Business Combination [Axis] Business Combination [Axis] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation 3M Company shareholders’ equity: Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Restructuring Plan [Domain] Restructuring Plan [Domain] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Number of perfluorinated materials (FBSA and FBSEE) Number Of Perfluorinated materials F B S A And F B S E E The number of perfluorinated materials (FBSA and FBSEE) the company cannot release into "the waters of the United States." Schedule of Acquired Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] Number of years after phase-out decision in May 2000 that the company stopped manufacturing and using vast majority of perfluorooctyl compounds (in years) Number Of Years After Phase Out Decision In May 2000 That Company Stopped Manufacturing Plus Using Vast Majority Of Perfluorooctanoyl Compounds Number of years after phase-out decision in May 2000 that the Company stopped manufacturing and using vast majority of perfluorooctanyl compounds. Number of actions filed Number Of Actions Filed Number Of Actions Filed Intangible Asset, Finite-Lived, Acquired [Table] Intangible Asset, Finite-Lived, Acquired [Table] City Area Code City Area Code Environmental Matters - Other Environmental Remediation Regulatory Activities And Litigation [Member] Regulatory activities and litigation related to environmental issues. Document Information [Table] Document Information [Table] Long-term debt, excluding current portion Debt Instrument, Fair Value Disclosure Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Operating expense Defined Benefit Plan, Operating Expense (Benefit) [Abstract] Defined Benefit Plan, Operating Expense (Benefit) Entity [Domain] Entity [Domain] Gordon County and Murray County, Georgia Gordon County And Murray County, Georgia [Member] Gordon County And Murray County, Georgia Amortization of prior service benefit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) Respirator Mask/Asbestos Litigation - Aearo Technologies Respirator Mask Asbestos Litigation Aearo [Member] Litigation with multiple co-defendants alleging personal injury resulting from use of the mask and respirator products of a subsidiary acquired by the entity or workplace injury resulting from the manufacture of the subsidiary's products. Amounts before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax New York Stock Exchange NEW YORK STOCK EXCHANGE, INC. [Member] Industrial Specialties Division Industrial Specialties Division [Member] Industrial Specialties Division Puttable restriction period Business Combination, Puttable Restriction Period Business Combination, Puttable Restriction Period Number of citations issued Loss Contingency, Number Of Citations Issued Loss Contingency, Number Of Citations Issued Measurement Basis [Axis] Measurement Basis [Axis] Gross amount of eligible offsetting recognized derivative liabilities Derivative Asset, Subject to Master Netting Arrangement, Liability Offset 1.500% Notes due 2031 Notes1.500 Percent Due2031 [Member] Notes bearing 1.500% due 2031. Acquisition activity Goodwill, Acquired During Period Due in one year or less Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, Year One Subsequent Event Type [Domain] Subsequent Event Type [Domain] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount 1.750% Notes due 2030 Notes 1.750 Percent Due 2030 [Member] Notes bearing 1.750% due 2030. Liabilities: Liabilities, Fair Value Disclosure [Abstract] Number of additional defendants Loss Contingency, Number Of Parties Jointly And Severally Liable In Litigation Loss Contingency, Number Of Parties Jointly And Severally Liable In Litigation 2029 Long-Term Debt, Maturity, Year Three Number of plaintiffs Number Of Plaintiffs Number Of Plaintiffs Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Business Combination, Separately Recognized Transaction [Line Items] Business Combination, Separately Recognized Transaction [Line Items] Cash flows from financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property, plant and equipment — net Property, plant and equipment — net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Number of cases tried Loss Contingency, Number Of Cases Tried Loss Contingency, Number Of Cases Tried Schedule of Consolidated Statement of Changes in Equity Schedule of Stockholders Equity [Table Text Block] Interest cost Defined Benefit Plan, Interest Cost Financial Instruments [Domain] Financial Instruments [Domain] Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Offsetting Offsetting [Abstract] Goodwill and Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Comprehensive (income) attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Fair value Estimate of Fair Value Measurement [Member] Total non-operating expense (benefit) Defined Benefit Plan Nonoperating Expense Benefit Amount of nonoperating expense (benefit) recognized in net periodic cost (benefit) of the defined benefit plan. Revenue Revenue from Contract with Customer [Text Block] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Prepaids Prepaid Expense, Current Other — net Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories Number of years remediation payments expected to be paid for applicable sites (in years) Loss Contingency Accrual at Carrying Value Remediation Payments Years The number of years the Company expects it will pay the amounts recorded over the periods of remediation for the applicable sites. Segment Reporting [Table] Segment Reporting [Table] Adjustment to redeemable noncontrolling interest Noncontrolling Interest, Adjustment to Redeemable Noncontrolling Interest Noncontrolling Interest, Adjustment to Redeemable Noncontrolling Interest Net loss Temporary Equity, Net Income Business combination, net sales since acquisition date Business Combination, Acquiree's Revenue since Acquisition Date, Actual Other current assets All other current assets Other Assets, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Asia Pacific Asia Pacific [Member] Current Fiscal Year End Date Current Fiscal Year End Date Loss on business divestitures Loss on business divestitures (Loss) gain on business divestitures Gain (Loss) on Disposition of Business Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Net investment hedges Derivative [Line Items] Indefinite lived intangible assets, life Indefinite Lived Intangible Assets, Life Indefinite Lived Intangible Assets, Life Fair value measurement, liability, measurement input Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Measurement Input Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Liability Measurement Input Net amount of derivative assets Derivative Asset, Subject to Master Netting Arrangement, before Offset of Collateral Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Dividends declared in period (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number After 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, after Year Five Liabilities held for sale Liabilities Held for Sale [Abstract] Liabilities Held for Sale Schedule of Marketable Securities by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Dividend to noncontrolling interest Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Measure: Measure [Axis] Treasury stock (in shares) Treasury Stock, Common, Shares Equity Components [Axis] Equity Components [Axis] Entity Interactive Data Current Entity Interactive Data Current Net income (loss) attributable to NCIs and adjustment to redeemable NCI Net Income (Loss) Attributable to Noncontrolling Interest Entity Small Business Entity Small Business Comprehensive income attributable to 3M Comprehensive Income (Loss), Net of Tax, Attributable to Parent Finite-lived intangible asset weighted average lives (years) Intangible Asset, Finite-Lived, Acquired, Weighted-Average Amortization Period MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Decatur, Alabama Decatur Alabama Plant [Member] Represents information related to 3M's Decatur, Alabama plant. Other assets Other Assets, Noncurrent Document Type Document Type Acquisitions, net of cash acquired Proceeds from business acquisition Cash paid, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Assets and Liabilities Measured on Recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Significant Accounting Policies Significant Accounting Policies [Text Block] Local Phone Number Local Phone Number Postretirement benefits Other Postretirement Benefits Plan [Member] Work in process Inventory, Work in Process, Gross Deferred tax liability Deferred Tax Liabilities, Gross Net Investment Hedges Net Investment Hedging [Member] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Commitments and contingencies (Note 15) Commitments and Contingencies Property, plant and equipment Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Reclassification out of Accumulated Other Comprehensive Income [Axis] Reclassification out of Accumulated Other Comprehensive Income [Axis] 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Executive Category: Executive Category [Axis] Tax effect Other Comprehensive Income (Loss), Tax Number of additional putative nationwide class action lawsuits filed create new multidistrict litigation Number Of Additional Putative Nationwide Class Action Lawsuits Filed Create New Multidistrict Litigation Number Of Additional Putative Nationwide Class Action Lawsuits Filed Create New Multidistrict Litigation Inventories Total inventories Inventory, Net Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount PEO Name PEO Name Cash flow hedging instruments, unrealized gain (loss) Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Four Point One Zero Percent Notes Due 2034 Four Point One Zero Percent Notes Due 2034 [Member] Four Point One Zero Percent Notes Due 2034 Less: cash acquired Cash Acquired from Acquisition Whitfield, Gordon, and Murray Whitfield, Gordon, and Murray [Member] Whitfield, Gordon, and Murray Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Comprehensive income including noncontrolling interests Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Fair Value, Measurement Frequency [Domain] Measurement Frequency [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense Number of chemicals of concern in the sediment Number Of Chemicals Of Concern The number of chemicals of concern in the sediment. Schedule of Location, Fair Value, and Gross Notional Amounts of Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Earnings per share — basic (in dollars per share) Earnings Per Share, Basic Total current assets Assets, Current Personal Safety Personal Safety [Member] Safety and Industrial - Personal Safety Insider Trading Arrangements [Line Items] Number of additional plaintiffs Number Of Additional Plaintiffs Number Of Additional Plaintiffs Long-term debt Long-Term Debt, Excluding Current Maturities Operating Leases Assets and Liabilities, Lessee [Abstract] Fixed rate medium term note Fixed Rate Medium Term Note [Member] Fixed Rate Medium Term Note Cumulative amount of fair value hedging adjustment included in carrying value of hedged liabilities for Hedged Liability, Fair Value Hedge, Cumulative Increase (Decrease) Accounts receivable — net of allowances of $52 and $61 Accounts Receivable, after Allowance for Credit Loss, Current Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Loss on divestitures Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Fair Value Measurement [Domain] Fair Value Measurement [Domain] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] 3.500% Notes due 2028 Notes 3.500 Percent Due 2028 [Member] Notes 3.500 Percent Due 2028 Stock-based compensation APIC, Share-Based Payment Arrangement, Recognition and Exercise Equity Awards Adjustments Equity Awards Adjustments [Member] Hedging Relationship [Domain] Hedging Relationship [Domain] Net deferred tax assets Deferred Tax Assets, Net Short-term borrowings and current portion of long-term debt Debt, Current Financial Instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Pre-tax charge on settlement Loss Contingency Accrual, Loss (Reversal of Loss) 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five Purchases of marketable securities and investments Payments to Acquire Investments Environmental Matters - Other Environmental Litigation Environmental Matters Other Environmental Litigation [Member] Other litigation related to environmental issues. Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Location and Fair Value Amount of Derivative Instruments Derivatives, Fair Value [Line Items] Environmental Matters - Remediation Environmental Remediation [Member] Adjustment to redeemable noncontrolling interest Adjustment To Redeemable Noncontrolling Interest Adjustment To Redeemable Noncontrolling Interest Number of cases remanded to state court Number Of Cases Remanded To State Court Number Of Cases Remanded To State Court Number of lawsuits pending Loss Contingency, Pending Claims, Number Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Industrial Adhesives and Tapes Industrial Adhesives And Tapes [Member] Safety and Industrial - Industrial Adhesives & Tapes Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Deferred taxes and accrued income taxes Business Combination, Recognized Liability Assumed, Deferred Tax Asset/(Liability) And Accrued Income Taxes Business Combination, Recognized Liability Assumed, Deferred Tax Asset/(Liability) And Accrued Income Taxes Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current 1.500% Notes due 2026 Notes 1.500 Percent Due 2026 [Member] Notes bearing 1.500% due 2026. Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Total purchase price Business Combination, Consideration Transferred Present value of possible loss (as a percent) Loss Contingency, Accrual, Discount Rate Loss Contingency, Accrual, Discount Rate Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Retirement Plan Type [Domain] Entity Filer Category Entity Filer Category Schedule of Offsetting Liabilities Offsetting Liabilities [Table Text Block] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Entity Address, Address Line Two Entity Address, Address Line Two Net income including noncontrolling interests Net income including noncontrolling interests (NCIs) Net income including noncontrolling interests Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Current assets Assets, Current [Abstract] Insurance recovery benefits Insurance Recoveries Entity Address, Address Line One Entity Address, Address Line One Provision for income taxes Income Tax Expense (Benefit) Fair Value Hedge Fair Value Hedging [Member] Adjustments to reconcile net income including noncontrolling interests to net cash provided by (used in) operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Less: net increase (decrease) in cash classified within assets held for sale Net Increase (Decrease) In Cash Classified Within Assets Held For Sale Net Increase (Decrease) In Cash Classified Within Assets Held For Sale Increase in liabilities, gross Liability for Asbestos and Environmental Claims, Gross, Period Increase (Decrease) Occupational Safety And Health Administration (“OSHA”) Occupational Safety And Health Administration (“OSHA”) [Member] Occupational Safety And Health Administration (“OSHA”) Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Gross amount of derivative assets presented in the consolidated balance sheet Derivative instruments Derivative Asset, Subject to Master Netting Arrangement, before Offset Home Improvement Home Improvement [Member] Consumer - Home Improvement Proceeds from short-term debt Proceeds from Short-Term Debt Estimated discount interest rate (as a percent) Product Liability Contingency, Accrual, Discount Rate The value the award the plaintiff seeks Loss Contingency, Damages Sought, Value Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]