Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] 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. New Jersey NEW JERSEY Maximum Maximum [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. Portion At Fair Value Fair Value Disclosure Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Short-term Debt, Type [Axis] Short-Term Debt, Type [Axis] Title of 12(b) Security Title of 12(b) Security Carrying value Reported Value Measurement [Member] Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Business acquisition-related costs Business Combination, Acquisition-Related Cost, Expense Gross amount of eligible offsetting recognized derivative assets Derivative Liability, Subject to Master Netting Arrangement, Asset Offset 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] 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. 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] Other assets Disposal Group, Including Discontinued Operation, Other Assets Common stock Common Stock, Value, Issued Accrued payroll Employee-related Liabilities, Current Decatur, Alabama Decatur Alabama Plant [Member] Represents information related to 3M's Decatur, Alabama plant. Pension and Postretirement Benefit Plans Retirement Benefits [Text Block] Loss contingency accrual Loss Contingency Accrual Minnesota MINNESOTA Line of Credit Line of Credit [Member] Restatement Determination Date Restatement Determination Date Proceeds from maturities and sale of marketable securities and investments Proceeds from Sale, Maturity and Collection of Investments Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Net income including noncontrolling interest Net Income (Loss) From Continuing Operations, Including Portion Attributable To Noncontrolling Interest Net Income (Loss) From Continuing Operations, Including Portion Attributable To Noncontrolling Interest Derivative Instrument [Axis] Derivative Instrument [Axis] Schedule of Currency Effects Schedule of Effective Income Tax Rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Natural Resources Defense Settlement Natural Resources Defense Settlement [Member] Natural Resources Defense Settlement Measurement Frequency [Axis] Measurement Frequency [Axis] Proceeds from sale of PP&E and other assets Proceeds from Sale of Productive Assets Amendment Flag Amendment Flag Goodwill [Line Items] Goodwill [Line Items] Current liabilities Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Assets held for sale Disposal Group, Including Discontinued Operation, Assets [Abstract] Number of cities, where litigation was received Number Of Cities, Where Litigation Was Received Number Of Cities, Where Litigation Was Received Disposal Group Classification [Axis] Disposal Group Classification [Axis] Asset backed securities and certificates of/time deposits Asset-Backed Securities [Member] Loss Contingencies [Table] Loss Contingencies [Table] Safety and Industrial Safety And Industrial Segment [Member] Business segment - Safety and Industrial Disposal group, Held-for-sale, Not discontinued operations Disposal Group, Held-for-Sale, Not Discontinued Operations [Member] Abrasives Abrasives [Member] Safety and Industrial - Abrasives 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 Present value of possible loss (as a percent) Loss Contingency, Accrual, Discount Rate Loss Contingency, Accrual, Discount Rate Home Improvement Home Improvement [Member] Consumer - Home Improvement Personal Safety Personal Safety [Member] Safety and Industrial - Personal Safety 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 Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Cumulative translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Cash and cash equivalents Disposal Group, Including Discontinued Operation, Cash and Cash Equivalents Capital expenditures Segment Reporting, Long-Lived Asset, Expenditure for Addition Exchange [Domain] Exchange [Domain] Intangible assets — net Total intangible assets — net Intangible Asset, Excluding Goodwill, after Accumulated Amortization April 2026 Revolving Credit Facility April 2026 Revolving Credit Facility [Member] April 2026 Revolving Credit Facility 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 Retirement Benefits [Abstract] Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Fair Value, by Balance Sheet Grouping Fair Value, by Balance Sheet Grouping [Table] Loss contingencies Loss Contingencies [Line Items] Number of business segments Number of Reportable Segments Total current liabilities 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 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 MICHIGAN MICHIGAN MAINE MAINE New Jersey Settlement PFAS New Jersey Settlement [Member] PFAS New Jersey Settlement Interest income Interest and Other Income MASSACHUSETTS MASSACHUSETTS Short Term Debt Type [Domain] Short-Term Debt, Type [Domain] Europe, Middle East and Africa EMEA [Member] Participation threshold (as a percent) Litigation Settlement, Participation Threshold, Percentage Litigation Settlement, Participation Threshold, Percentage Entity Address, City or Town Entity Address, City or Town Pending Litigation Pending Litigation [Member] Benefit Plan Information Defined Benefit Plan Disclosure [Line Items] Commercial paper outstanding Commercial Paper Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Solventum spin-off Solventum spin-off Stockholders' Equity Note, Spinoff Transaction Document Information Document Information [Line Items] International Foreign Plan [Member] 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] 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] Accumulated amortization Intangible Asset, Finite-Lived, Accumulated Amortization Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Maximum borrowing capacity including portion subject to lender approval Line of Credit Facility, Maximum Borrowing Capacity Total other comprehensive income (loss), net of tax 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] Consumer Consumer Segment [Member] Business segment - Consumer 2025-2026 Transformation Costs 2025-2026 Transformation Costs [Member] 2025-2026 Transformation Costs United States UNITED STATES Subsequent Event Type [Axis] Subsequent Event Type [Axis] 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] Automotive Aftermarket Automotive Aftermarket [Member] Safety and Industrial - Automotive Aftermarket Settlement, duration (in years) Loss Contingency, Accrual, Duration Loss Contingency, Accrual, Duration New Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Litigation Case [Axis] Litigation Case [Axis] Noncontrolling interest Noncontrolling Interest [Member] Solventum ownership - change in value Gain (Loss) on Disposition of Stock in Subsidiary or Equity Method Investee Schedule of Business Segment Information Segment Reporting [Table Text Block] Environmental Matters - Regulatory Activities Environmental Matters Regulatory Activities [Member] Regulatory activities involving perfluorinated compounds (PFCs) and perfluorooctanyl compounds (PFOA or PFOS). Domestic Plan Domestic Plan [Member] Unsecured Debt Unsecured Debt [Member] Total other comprehensive income (loss), before tax Other Comprehensive Income (Loss), before Tax Number of cases tried Loss Contingency, Number Of Cases Tried Loss Contingency, Number Of Cases Tried 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 Changes in assets and liabilities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Number of unnamed defendant Number of Unnamed Defendants The number of unnamed defendants. 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] Liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities, Current Germany Litigation PFAS Germany Litigation [Member] PFAS Germany Litigation Principal amount Debt Instrument, Face Amount Automotive and Aerospace Automotive And Aerospace [Member] Transportation and Electronics - Automotive and Aerospace Supplemental Equity and Comprehensive Income Information Equity [Text Block] 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 Operating expenses Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Number of cases, conditional transfer orders issued Number Of Cases, Conditional Transfer Orders Issued Number Of Cases, Conditional Transfer Orders Issued Term of debt instrument Debt Instrument, Term Treasury stock, at cost Treasury Stock, Common, Value Miles from the plant Loss Contingency Approximate Miles From The Plant Loss Contingency Approximate Miles From The Plant Area of land Area of Land Schedule of Supplemental Balance Sheet Information Condensed Balance Sheet [Table Text Block] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Belgian Civil Litigation PFAS Belgian Civil Litigation [Member] PFAS Belgian Civil Litigation Consolidation Items [Domain] Consolidation Items [Domain] Current liability Operating Lease, Liability, Current Business Segments Segment Reporting, Policy [Policy Text Block] 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. Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Definite-lived tradenames Trademarks and Trade Names [Member] Earnings Per Share Earnings Per Share [Text Block] 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 Name Outstanding Recovery, Individual Name Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] 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 Available-for-sale marketable securities Debt Securities, Available-for-Sale, Excluding Accrued Interest Geographical Area [Domain] Geographical [Domain] Purchases of property, plant and equipment (PP&E) Payments to Acquire Property, Plant, and Equipment 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] Number of additional cases selected for discovery Number Of Additional Cases Selected For Discovery Number Of Additional Cases Selected For Discovery Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Pre-tax charge on product liability Product Liability Accrual, Period Expense Company Selected Measure Name Company Selected Measure Name Pre tax charge Gain (Loss) from Litigation Settlement Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Pension and postretirement benefits Disposal Group, Including Discontinued Operation, Pension And Postretirement Benefits Disposal Group, Including Discontinued Operation, Pension And Postretirement Benefits Defined benefit pension and postretirement plans adjustment Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] Credit Facility [Domain] Credit Facility [Domain] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Present value of estimated possible loss Loss Contingency, Present Value Of Estimated Possible Loss Loss Contingency, Present Value Of Estimated Possible Loss Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Number of citations issued Loss Contingency, Number Of Citations Issued Loss Contingency, Number Of Citations Issued 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 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 Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Cross Currency Interest Rate Contract Cross Currency Interest Rate Contract [Member] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] 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] Schedule of Assets and Liabilities Classified as Held for Sale Disposal Groups, Including Discontinued Operations [Table Text Block] Gross amount of derivative liabilities presented in the consolidated balance sheet Derivative liability, fair value Derivative Liability, Subject to Master Netting Arrangement, before Offset Company contributions Defined Benefit Plan, Plan Assets, Contributions by Employer 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. Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Virginia VIRGINIA Other Other Intangible Assets [Member] Other — net Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Home and Auto Care Home And Auto Care [Member] Home And Auto Care Treasury stock Treasury Stock, Common [Member] Intangible Asset, Goodwill and Other [Abstract] Intangible Asset, Goodwill and Other [Abstract] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Level 1 Fair Value, Inputs, Level 1 [Member] Non-operating expense Defined Benefit Plan, Nonoperating Expense (Benefit) [Abstract] Defined Benefit Plan, Nonoperating Expense (Benefit) Effective tax rate Effective Income Tax Rate Reconciliation, Percent Organization, Consolidation and Presentation of Financial Statements [Abstract] Amount of punitive damages awarded Litigation Settlement Expense, Punitive The amount of punitive damages awarded. Litigation Status [Domain] Litigation Status [Domain] Dilution associated with stock-based compensation plans (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements 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. Proceeds from issuance of treasury stock pursuant to stock option and benefit plans Proceeds from Sale of Treasury Stock Income of consolidated group Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Environmental Matters Future PFAS-Related Claims Environmental Matters Future PFAS-Related Claims [Member] Environmental Matters Future PFAS-Related Claims 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) Madison Fire & Rescue Madison Fire & Rescue [Member] Madison Fire & Rescue Schedule of Net Periodic Benefit Cost (Benefit) Schedule of Net Benefit Costs [Table Text Block] 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] Number of pending cases filed in state court Number Of Pending Cases Filed In State Court Number Of Pending Cases Filed In State Court Scenario [Domain] Scenario [Domain] Consumer Safety and Well-Being Consumer Safety And Well-Being [Member] Consumer Safety And Well-Being 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] Schedule of Computations for Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Business Segments Segment Reporting [Text Block] Number of chemicals of concern in the sediment Number Of Chemicals Of Concern The number of chemicals of concern in the sediment. Minimum Minimum [Member] Number of additional plaintiffs Number Of Additional Plaintiffs Number Of Additional Plaintiffs Dividends paid to shareholders Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Hedging Relationship [Axis] Hedging Relationship [Axis] Number of plaintiffs filed motions to vacate the conditional transfer orders Number Of Plaintiffs Filed Motions To Vacate The Conditional Transfer Orders Number Of Plaintiffs Filed Motions To Vacate The Conditional Transfer Orders Schedule of Disaggregated Revenue Disaggregation of Revenue [Table Text Block] Liabilities 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] 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 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] Estimate of possible settlement amount Loss Contingency, Estimate of Possible Loss 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) Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Other Income and Expenses [Abstract] Manufactured PFAS products Manufactured PFAS Products Manufactured PFAS Products Common stock, authorized (in shares) Common Stock, Shares Authorized Accumulated Other Comprehensive Income (Loss) Accumulated Other Comprehensive Income (Loss) [Line Items] Supplemental Income Statement Information Other Nonoperating Income and Expense [Text Block] Number of commercial drum conditioning facilities Number Of Commercial Drum Conditioning Facilities The number of commercial drum conditioning facilities. Exercise Price Award Exercise Price Schedule of Restructuring and Related Costs [Table] Restructuring Cost [Table] Cash flows from investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Litigation Status [Axis] Litigation Status [Axis] Fair Value, Recurring Fair Value, Recurring [Member] Business Segment Information Segment Reporting [Line Items] Document Quarterly Report Document Quarterly Report Legal Proceedings Legal Costs, Policy [Policy Text Block] 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] Segments [Domain] Segments [Domain] Settled Litigation Settled Litigation [Member] U.S. municipal securities US States and Political Subdivisions Debt Securities [Member] Cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Including Discontinued Operation Environmental Matters - Other Environmental Litigation Environmental Matters Other Environmental Litigation [Member] Other litigation related to environmental issues. Indefinite lived intangible assets, life Indefinite Lived Intangible Assets, Life Indefinite Lived Intangible Assets, Life 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 Environmental Matters - Other Environmental Remediation Regulatory Activities And Litigation [Member] Regulatory activities and litigation related to environmental issues. Long-Term Debt and Short-Term Borrowings Debt Disclosure [Text Block] Other PFAS-Related And Environmental Litigation Other PFAS-Related And Environmental Litigation [Member] Other PFAS-Related And Environmental Litigation Scenario [Axis] Scenario [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Marketable security, gain (loss) Marketable Security, Gain (Loss) Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Accrued restructuring actions Restructuring Reserve Packaging and Expression Packaging And Expression [Member] Packaging And Expression Equity Components [Domain] Equity Component [Domain] Business Combination [Table] Business Combination [Table] Acquisitions and Divestitures Mergers, Acquisitions and Dispositions Disclosures [Text Block] Watson Grinding Watson Grinding [Member] Watson Grinding PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount 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. Patents and technology Patented Technology [Member] Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Foreign Exchange Contract Foreign currency forward/option contracts and cross-currency swaps Foreign Exchange Contract [Member] Depreciation and amortization Depreciation, Depletion And Amortization, Adjusted Depreciation, Depletion And Amortization, Adjusted Number of separate lawsuits filed Number Of Separate Lawsuits Filed Number Of Separate Lawsuits Filed Marketable securities by contractual maturity Debt Securities, Available-for-Sale, Fair Value, Fiscal Year Maturity [Abstract] Total operating expenses Total Corporate Costs and Expenses Adoption Date Trading Arrangement Adoption Date Schedule of Other Expense (Income), Net Schedule of Other Nonoperating Income (Expense) [Table Text Block] Other comprehensive income (loss), before tax: Other Comprehensive Income (Loss), before Tax Period Change [Abstract] Dividends declared Dividends, Common Stock, Cash Total 3M Company shareholders’ equity Equity, Attributable to Parent Other expense (income), net Total Other expense/(income), net Nonoperating Income (Expense) Entity Listings, Exchange [Axis] Entity Listings, Exchange [Axis] Repayment of debt (maturities greater than 90 days) 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] Solventum common stock Equity Securities, FV-NI, Current Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount 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. Accounting Policies [Abstract] Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] 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 Fair Value on a Nonrecurring Basis Fair Value, Nonrecurring [Member] Insider Trading Policies and Procedures [Line Items] Transformation costs Transformation Costs Transformation Costs Other — net Proceeds from (Payment for) Other Financing Activity Allowances for doubtful accounts receivable Accounts Receivable, Allowance for Credit Loss, Current Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Product Liability Litigation Product Liability Contingency [Line Items] Operating expense Defined Benefit Plan, Operating Expense (Benefit) [Abstract] Defined Benefit Plan, Operating Expense (Benefit) Derivatives in Cash Flow Hedging Relationships Derivative Instruments, Gain (Loss) [Line Items] Deferred income taxes Deferred Income Tax Expense (Benefit) Selling, general and administrative expenses Selling, general and administrative expenses Selling, General and Administrative Expense Supplemental Balance Sheet Information Supplemental Balance Sheet Disclosures [Text Block] 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] Weighted average number of antidilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount AFFF MDL Personal Injury Bellwether Cases AFFF MDL Personal Injury Bellwether Cases [Member] AFFF MDL Personal Injury Bellwether Cases 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] Schedule of Goodwill Goodwill [Table Text Block] Number of significant categories of legal proceedings Number Of Significant Categories Of Legal Proceedings Number Of Significant Categories Of Legal Proceedings Entity Central Index Key Entity Central Index Key Occupational Safety And Health Administration (“OSHA”) Occupational Safety And Health Administration (“OSHA”) [Member] Occupational Safety And Health Administration (“OSHA”) Number of cases filed in state court Number Of Cases Filed In State Court Number Of Cases Filed In State Court Less: accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Net periodic benefit cost (benefit) Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract] Additional paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Business Combination [Axis] Business Combination [Axis] 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] 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. Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Total of kidney cancer plaintiffs Loss Contingency, Total Of Kidney Cancer Plaintiffs Loss Contingency, Total Of Kidney Cancer Plaintiffs Total liabilities held for sale Disposal Group, Including Discontinued Operation, Liabilities 3M Company shareholders’ equity: Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Number of actions filed Number Of Actions Filed Number Of Actions Filed Derivatives designated as hedging instruments Designated as Hedging Instrument [Member] Restructuring Plan [Domain] Restructuring Plan [Domain] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Acquired Intangible Assets Intangible Asset, Finite-Lived [Table Text Block] Intangible Asset, Finite-Lived, Acquired [Table] Intangible Asset, Finite-Lived, Acquired [Table] City Area Code City Area Code Accumulated other comprehensive income (loss) Total accumulated other comprehensive income (loss) AOCI Attributable to Parent [Member] Document Information [Table] Document Information [Table] All Individuals All Individuals [Member] Proceeds from (payments for) sale of businesses, net of cash sold Payments for (Proceeds from) Businesses and Interest in Affiliates 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] Redemption restriction period Business Combination, Redemption Restriction Period Business Combination, Redemption Restriction Period Total non-current assets Assets, Noncurrent Total assets Assets Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan [Table] Entity [Domain] Entity [Domain] Schedule of Net Deferred Tax Assets Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Amortization of prior service benefit Defined Benefit Plan, Amortization of Prior Service Cost (Credit) 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 Operating Segments Operating Segments [Member] Interest expense Interest Expense, Nonoperating Total number of putative nationwide class action lawsuits filed Number Of Total Putative Nationwide Class Action Lawsuits Filed Number Of Total Putative Nationwide Class Action Lawsuits Filed Amounts before reclassifications Other Comprehensive Income (Loss), before Reclassifications, before Tax PEO PEO [Member] Product Liability Contingency [Table] Product Liability Contingency [Table] New York Stock Exchange NEW YORK STOCK EXCHANGE, INC. [Member] Advanced Materials Advanced Materials [Member] Transportation and Electronics - Advanced Materials Measurement Basis [Axis] Measurement Basis [Axis] Gross amount of eligible offsetting recognized derivative liabilities Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Other liabilities Other Liabilities, Noncurrent 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 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 Other AFFF Cases Other AFFF Cases [Member] Other AFFF Cases 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] Number of cases remanded to state court Number Of Cases Remanded To State Court Number Of Cases Remanded To State Court Retained earnings Retained Earnings [Member] Noncurrent liability Operating Lease, Liability, Noncurrent Revolving Credit Facility Revolving Credit Facility [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] 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 Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Current Reporting Status Entity Current Reporting Status Number of initial plaintiffs Number Of Initial Plaintiffs Number Of Initial Plaintiffs 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 Unrealized gain on investments Unrealized Gain (Loss) on Investments Litigation Case [Domain] Litigation Case [Domain] Amortization expense Intangible Asset, Finite-Lived, Amortization Expense Number of claims pending Number Of Claims Pending Number Of Claims Pending Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Inventories Inventories, Adjusted Inventories, Adjusted Foreign currency denominated debt Foreign Currency Denominated Debt [Member] This element represents foreign currency denominated debt. Schedule of Offsetting Assets Offsetting Assets [Table Text Block] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Net sales Revenue from Contract with Customer, Excluding Assessed Tax 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 Schedule of Consolidated Statement of Changes in Equity Schedule of Stockholders Equity [Table Text Block] Interest cost Defined Benefit Plan, Interest Cost Inventories Disposal Group, Including Discontinued Operation, Inventory Accrual, net Loss Contingency Accrual, Product Liability, Net Financial Instruments [Domain] Financial Instruments [Domain] Number of companies neighboring the Zwijndrecht facility Number Of Companies Neighboring The Zwijndrecht Facility Number Of Companies Neighboring The Zwijndrecht Facility Indefinite lived intangible assets Indefinite-Lived Trade Names Assets held for sale Disposal Group, Including Discontinued Operation, Assets, Current Annual sales Disposal Group, Including Discontinued Operation, Average Annual Revenue Disposal Group, Including Discontinued Operation, Average Annual Revenue Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Offsetting Offsetting [Abstract] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Proceeds from business acquisition Proceeds From Business Acquisition Proceeds From Business Acquisition Goodwill and Intangible Assets Intangible Asset and Goodwill [Text Block] Underlying Securities Award Underlying Securities Amount Comprehensive (income) attributable to noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Fair value Estimate of Fair Value Measurement [Member] 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 China/Hong Kong China And Hong Kong [Member] This element represents the China Hong/Kong geographic region. Transportation and Electronics Transportation And Electronics Segment [Member] Business Segment - Transportation and Electronics Other — net Payment for (Proceeds from) Other Investing Activity Inventories Increase (Decrease) in Inventories 1.500% Notes due 2031 Notes1.500 Percent Due2031 [Member] Notes bearing 1.500% due 2031. Industrial Adhesives and Tapes Industrial Adhesives And Tapes [Member] Safety and Industrial - Industrial Adhesives & Tapes Segment Reporting [Table] Segment Reporting [Table] 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] Operating income Operating Income (Loss) 1.500% Notes due 2026 Notes 1.500 Percent Due 2026 [Member] Notes bearing 1.500% due 2026. 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] 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 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 Number of facilities Loss Contingency, Number Of Facilities Loss Contingency, Number Of Facilities Company pension and postretirement contributions Payment Of Pension And Other Postretirement Benefit Contributions Amount of payment for pension and other postretirement contributions. Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Service cost Defined Benefit Plan, Service Cost After 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, after Year Five Schedule of Marketable Securities by Contractual Maturity Investments Classified by Contractual Maturity Date [Table Text Block] Long-lived asset impairment charges Asset, Impairment Loss Recovery of Erroneously Awarded Compensation Disclosure [Line Items] 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 Measure: Measure [Axis] Finished goods Inventory, Finished Goods, Gross Alabama ALABAMA Treasury stock (in shares) Treasury Stock, Common, Shares Equity Components [Axis] Equity Components [Axis] Accounts receivable Increase (Decrease) in Accounts Receivable Liabilities held for sale Liabilities Held for Sale [Abstract] Liabilities Held for Sale Products and Services [Domain] Product and Service [Domain] Electronics Electronics [Member] Transportation and Electronics - Electronics Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Entity Interactive Data Current Entity Interactive Data Current Less: net income attributable to noncontrolling interest Net Income (Loss) Attributable to Noncontrolling Interest 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 Dalton, Georgia Dalton, Georgia [Member] Dalton, Georgia Entity Small Business Entity Small Business Comprehensive income attributable to 3M Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Environmental Matters - Chambers Works And Other Elements Environmental Matters Chambers Works And Other Elements [Member] Environmental Matters Chambers Works And Other Elements 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 MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other current liabilities Other Liabilities, Current Other assets Other Assets, Noncurrent Document Type Document Type Assets and Liabilities Measured on Recurring Basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value Significant Accounting Policies Significant Accounting Policies [Text Block] 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 Schedule of Goodwill [Table] Goodwill [Table] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Local Phone Number Local Phone Number Expected payment Loss Contingency, Expected Payment Loss Contingency, Expected Payment Postretirement benefits Other Postretirement Benefits Plan [Member] Work in process Inventory, Work in Process, Gross Deferred tax liability Deferred Tax Liabilities, Gross Consolidation Items [Axis] Consolidation Items [Axis] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Net Investment Hedges Net Investment Hedging [Member] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 15) Commitments and Contingencies Gross carrying amount Intangible Asset, Finite-Lived, before Accumulated Amortization Net sales Revenues Property, plant and equipment Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Number of cases moved to federal court Number Of Cases Moved To Federal Court Number Of Cases Moved To Federal Court 2030 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Four Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Gordon County and Murray County, Georgia Gordon County And Murray County, Georgia [Member] Gordon County And Murray County, Georgia Total marketable securities Debt Securities, Available-for-Sale, Maturity, Allocated and Single Maturity Date, Fair Value Tax effect Other Comprehensive Income (Loss), Tax 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] Number of cases declined to transfer Number Of Cases Declined To Transfer Number Of Cases Declined To Transfer Outstanding balances of confirmed invoices Supplier Finance Program, Obligation Inventories Total inventories Inventory, Net All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Unsecured Term Loan Facility Unsecured Term Loan Facility [Member] Unsecured Term Loan Facility 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] 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. 2027 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year One PEO Name PEO Name Geographical [Axis] Geographical [Axis] Cash flow hedging instruments, unrealized gain (loss) Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] 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. Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Floyd County and Whitfield County, Georgia Floyd County And Whitfield County, Georgia [Member] Floyd County And Whitfield County, Georgia Entity Tax Identification Number Entity Tax Identification Number Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Legal Entity [Axis] Legal Entity [Axis] Interest expense related to outstanding debt Interest Expense, Debt Number of decades involved in claims Loss Contingency, Number Of Decades Involved In Claims Loss Contingency, Number Of Decades Involved In Claims 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 Reacquired stock Treasury Stock, Value, Acquired, Cost Method 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 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] Non-NEOs Non-NEOs [Member] 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. 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 interest 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] PFAS Contamination PFAS Contamination [Member] PFAS Contamination Stock-based compensation expense Share-Based Payment Arrangement, Noncash Expense 2028 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Two Proceeds from debt (maturities greater than 90 days) Proceeds from Debt, Maturing in More than Three Months Whitfield, Gordon, and Murray Whitfield, Gordon, and Murray [Member] Whitfield, Gordon, and Murray Net amount of derivative liabilities Derivative Liability, Subject to Master Netting Arrangement, before Offset of Collateral PWS Settlement PWS Settlement [Member] PWS Settlement 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 Purchases of treasury stock Payments for Repurchase of Common Stock Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Number of tentative trial dates of the lawsuits are set between December 2026 and March 2027 Number Of Tentative Trial Dates Of The Lawsuits Are Set Between December 2026 And March 2027 Number Of Tentative Trial Dates Of The Lawsuits Are Set Between December 2026 And March 2027 Long-term debt Long-Term Debt, Excluding Current Maturities Operating Leases Assets and Liabilities, Lessee [Abstract] Cost of sales Cost of Revenue Award Type Award Type [Axis] Industrial Specialties Division Industrial Specialties Division [Member] Industrial Specialties Division Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts receivable — net of allowances of $51 and $61 Accounts Receivable, after Allowance for Credit Loss, Current Retained earnings Retained Earnings (Accumulated Deficit) Restructuring and Related Activities [Abstract] Restructuring and Related Activities [Abstract] Product and Service [Axis] Product and Service [Axis] Gordon Country, Georgia Gordon Country, Georgia [Member] Gordon Country, Georgia Roofing Granules Roofing Granules [Member] Safety and Industrial - Roofing Granules Number of plaintiffs Number Of Plaintiffs Number Of Plaintiffs 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] Murray, Whitfield, Gordon, and Catoosa Murray, Whitfield, Gordon, And Catoosa [Member] Murray, Whitfield, Gordon, And Catoosa 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] Loss on divestitures Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Fair Value Measurement [Domain] Fair Value Measurement [Domain] Net costs for significant litigation and PFAS exit Litigation Settlement, Fee Expense Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] 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] Stock-based compensation APIC, Share-Based Payment Arrangement, Recognition and Exercise Translation and other Goodwill, Foreign Currency Translation, Gain (Loss) Equity Awards Adjustments Equity Awards Adjustments [Member] CAE Settlement CAE Settlement [Member] CAE Settlement Hedging Relationship [Domain] Hedging Relationship [Domain] Total liabilities and equity Liabilities and Equity Net deferred tax assets Deferred Tax Assets, Net Employee Stock Option Share-Based Payment Arrangement, Option [Member] Short-term borrowings and current portion of long-term debt Debt, Current Financial Instruments Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Amounts reclassified out Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax Noncontrolling interest Equity, Attributable to Noncontrolling Interest Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Restructuring charges Restructuring Charges Tabular List, Table Tabular List [Table Text Block] Pre-tax charge on settlement Loss Contingency Accrual, Loss (Reversal of Loss) 2031 Intangible Asset, Finite-Lived, Estimated Amortization Expense, Year Five 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. 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 Purchases of marketable securities and investments Payments to Acquire Investments 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] 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 Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Location and Fair Value Amount of Derivative Instruments Derivatives, Fair Value [Line Items] Raw materials and supplies Inventory, Raw Materials and Supplies, Gross Environmental Matters - Remediation Environmental Remediation [Member] Adjustment to Compensation: Adjustment to Compensation [Axis] Number of lawsuits pending Loss Contingency, Pending Claims, Number Marketable security, unrealized gain (loss) Marketable Security, Unrealized Gain (Loss) Hedging Designation [Domain] Hedging Designation [Domain] Class of Stock [Domain] Class of Stock [Domain] 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 Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] 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. 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 Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Other disease claims Loss Contingency, Other Disease Claims Loss Contingency, Other Disease Claims 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 Number of chemical suppliers in complaint Number Of Chemical Suppliers In Complaint Number Of Chemical Suppliers In Complaint Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Debt instrument [Line Items] Debt Instrument [Line Items] Bain Capital Bain Capital [Member] Bain Capital Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Total purchase price Business Combination, Consideration Transferred 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] Number of existing lawsuits added Number Of Existing Lawsuits Added Number Of Existing Lawsuits Added Name Trading Arrangement, Individual Name Retirement Plan Sponsor Location [Axis] Retirement Plan Sponsor Location [Axis] Number of cases settled Loss Contingency, Claims Settled, Number Number of locations, samples collected Number Of Locations For Sample Collections Number Of Locations For Sample Collections Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Company Selected Measure Amount Company Selected Measure Amount Derivatives not designated as hedging instruments Not Designated as Hedging Instrument [Member] Depreciation and amortization Depreciation, Depletion and Amortization Retirement Plan Sponsor Location [Domain] Retirement Plan Sponsor Location [Domain] Commercial Branding and Transportation Commercial Branding And Transportation [Member] Transportation and Electronics - Commercial Solutions 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 Net income including noncontrolling interest Net income including noncontrolling interest Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Current assets Assets, Current [Abstract] 1.750% Notes due 2030 Notes 1.750 Percent Due 2030 [Member] Notes bearing 1.750% due 2030. Insurance recovery benefits Insurance Recoveries Participating claimants in settlement (as a percentage) Claimants Participating Percentage In Settlement Claimants Participating Percentage In Settlement Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One Provision for income taxes Income Tax Expense (Benefit) Year-on-year change in pre-tax income (loss) from foreign currency transactions Gain (Loss), Foreign Currency Transaction, before Tax Adjustments to reconcile net income including noncontrolling interest 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] Cost of sales Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Number of cases transferred to other cases Number Of Cases Transferred To Other Cases Number Of Cases Transferred To Other Cases Forecast Forecast [Member] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Numerator: Net Income (Loss) Attributable to Parent [Abstract] Deferred tax asset (net of valuation allowance) Deferred Tax Assets, Net of Valuation Allowance Number of respirators sold Loss Contingency, Number Of Respirators Sold Loss Contingency, Number Of Respirators Sold Electrical Markets Electrical Markets [Member] Safety and Industrial - Electrical Markets Company pension and postretirement expense Pension and Other Postretirement Benefits Expense (Reversal of Expense), Noncash Amortization of net actuarial loss Defined Benefit Plan, Amortization of Gain (Loss) Net income attributable to 3M Net income attributable to 3M Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Increase in liabilities, gross Liability for Asbestos and Environmental Claims, Gross, Period Increase (Decrease) Balance Sheet Location [Axis] Location, Statement of Financial Position, Balance [Axis] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] Restatement Determination Date: Restatement Determination Date [Axis] Schedule of Changes in Accumulated Other Comprehensive Income (Loss) Attributable to 3M Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] 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 Settlement amount paid Litigation Settlement, Amount Awarded to Other Party 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." 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 assets, fair value Derivative Asset, Subject to Master Netting Arrangement, before Offset Number of lawsuits filed Loss Contingency, New Claims Filed, Number Total Other Comprehensive Income (Loss), Net Investment Hedge, Gain (Loss), before Reclassification and Tax Proceeds from short-term debt Proceeds from Short-Term Debt Other liabilities Disposal Group, Including Discontinued Operation, Other Liabilities Estimated discount interest rate (as a percent) Product Liability Contingency, Accrual, Discount Rate Number of cross claims filed Number Of Cross Claims Filed Number Of Cross Claims Filed The value the award the plaintiff seeks Loss Contingency, Damages Sought, Value Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract]