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Commitments and Contingencies - Environmental (Details) € in Millions | 1 Months Ended | 3 Months Ended | 6 Months Ended | 9 Months Ended | 35 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 31, 2022 EUR (€) defendant individual | Feb. 28, 2022 USD ($) | Dec. 31, 2021 USD ($) | Oct. 31, 2021 lawsuit bill | Sep. 30, 2021 EUR (€) | May 31, 2021 individual | Feb. 28, 2021 case lawsuit | Jun. 30, 2020 lawsuit | Apr. 30, 2020 subsidiary | Jul. 31, 2019 landfill | Jun. 30, 2019 lawsuit | May 31, 2019 lawsuit | Apr. 30, 2019 USD ($) | Mar. 31, 2019 facility lawsuit | Jul. 31, 2018 USD ($) facility chemical defendant mi | Aug. 31, 2016 individual | Oct. 31, 2015 water_work | Jun. 30, 2022 USD ($) | Jun. 30, 2022 USD ($) | Sep. 30, 2022 USD ($) lawsuit case party perfluorinated_material individual | Sep. 30, 2022 USD ($) plaintiff party lawsuit | Nov. 30, 2022 party | Mar. 31, 2022 EUR (€) | Nov. 30, 2021 USD ($)
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in liabilities, gross | € 571 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 355,000,000 | $ 500,000,000 |  |  |  |  |
King Case |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs | plaintiff |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37 |  |  |
Zwijndrecht Site |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment plan for environmental remediation | € |  |  |  |  | € 125 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | € 150 |
Investment plan for environmental remediation, period (in years) |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
City of Decatur, Decatur Utilities, and Morgan County |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment plan for environmental remediation | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 99,000,000
City Of Guin Water Works And Sewer Board |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement amount paid | $ |  |  | $ 30,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Belgium |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits pending | party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9 | 9 |  |  |
Belgium | Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits pending | party |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |
Environmental Matters - Remediation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued loss contingency reserve | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 29,000,000 | $ 29,000,000 |  |  |
Number of years remediation payments expected to be paid for applicable sites |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20 years |  |  |  |
Environmental Matters - Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued loss contingency reserve | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | 0 |  |  |
Insurance receivables | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 8,000,000 | $ 8,000,000 |  |  |
Environmental Matters - Regulatory Activities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of years after phase-out decision in May 2000 that the Company stopped manufacturing and using vast majority of perfluorooctanyl compounds |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |  |
Environmental Matters - Regulatory Activities | California |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of bills signed into law that prohibit use of PFAS in children's products and food packaging | bill |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Litigation | Alabama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of local water works for whom the water authority supplies water | water_work |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |  |  |  |
Litigation settlement awarded | $ |  |  |  |  |  |  |  |  |  |  |  |  | $ 35,000,000 |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Litigation | Decatur, Alabama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of putative class action and other lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Number of closed municipal landfills | landfill |  |  |  |  |  |  |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Litigation | New Jersey |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  | 2 |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |
Number of additional new claims filed |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Litigation | Salem County, New Jersey |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of facilities related to the manufacture and disposal of PFAS | facility |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |
Environmental Matters - Litigation | State Court of Lawrence County, Alabama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs | individual |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,900 |  |  |  |
Environmental Matters - Litigation | State Court of Lawrence County, Alabama | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs | individual |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200 |  |  |  |  |  |  |  |
Environmental Matters - Litigation | New Hampshire |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Litigation | Vermont |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Aqueous Film Forming Foam Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of putative class action and other lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,095 |  |  |  |
Number of class action lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 33 |  |  |  |
Number of public water system lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 200 | 200 |  |  |
Environmental Matters - Aqueous Film Forming Foam Litigation | U.S. Judicial Panel on Multidistrict Litigation (MDL) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of water supplier cases |  |  |  |  |  |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of water supplier cases selected |  |  |  | 3 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Aqueous Film Forming Foam Litigation | Various state courts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits pending |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 | 5 |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  |  |  |  | 8 |  |  |  |  |  |  |  |  |  |  |  |  |
Number of cases stayed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |
Number of lawsuits served |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 24 |  |  |  |
Environmental Matters - Aqueous Film Forming Foam Litigation | State court in Wisconsin |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of subsidiaries of plaintiff | subsidiary |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters - Aqueous Film Forming Foam Litigation | Federal court |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits pending |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 2 |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase (decrease) accrued loss contingency reserve | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 626,000,000 |  |  |  |
Litigation payments | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 394,000,000 |  |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | U.S. District Court of New York State |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of plaintiffs | individual | 8 |  |  |  |  | 24 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Settlement amount paid | $ |  | $ 65,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39 |  |  |  |
Number of additional new claims filed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5 |  |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | U.S. District Court of Eastern District of New York |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits pending |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13 | 13 |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | Decatur, Alabama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of perfluorinated materials (FBSA and FBSEE) the company cannot release into "the waters of the United States." | perfluorinated_material |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | Alabama and Georgia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of putative class action and other lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | Cities located downstream along the Coosa River |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of putative class action and other lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 |  |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | New Jersey |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 26 |  |  |  |
Number of lawsuits seeking medical monitoring and damages | case |  |  |  |  |  |  | 10 |  |  |  |  |  |  |  |  |  |  |  |  | 10 |  |  |  |
Environmental Matters - Other PFAS-related Environmental Litigation | Delaware. |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of putative class action and other lawsuits |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 |  |  |  |
Environmental Matters - Other Environmental Litigation |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Accrued loss contingency reserve | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 644,000,000 | $ 644,000,000 |  |  |
Environmental Matters - Other Environmental Litigation | New Jersey |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Approximate number of miles of a river seeking to be cleaned | mi |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 |  |  |  |  |  |  |  |  |
The value the award the plaintiff seeks | $ |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 165,000,000 |  |  |  |  |  |  |  |  |
Number of chemicals of concern in the sediment | chemical |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8 |  |  |  |  |  |  |  |  |
Number of commercial drum conditioning facilities | facility |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |
Environmental Matters - Other Environmental Litigation | New Jersey | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of unnamed defendant | defendant |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 120 |  |  |  |  |  |  |  |  |
Environmental Matters, AFFF Related Lawsuit | Massachusetts |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of defendants | defendant | 18 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Environmental Matters Other Pfc Related Environmental Litigation, Individual Cases | New Jersey |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss contingencies |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits filed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 16 |  |  |  |

X
- Definition Accrual For Environmental Loss Contingencies, Period + References No definition available. + Details
Name: | mmm_AccrualForEnvironmentalLossContingenciesPeriod
Namespace Prefix: | mmm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of years the Company expects it will pay the amounts recorded over the periods of remediation for the applicable sites. + References No definition available. + Details
Name: | mmm_LossContingencyAccrualAtCarryingValueRemediationPaymentsYears
Namespace Prefix: | mmm_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total number of additional new claims filed pertaining to a loss contingency during the period. + References No definition available. + Details
Name: | mmm_LossContingencyAdditionalNewClaimsFiledNumber
Namespace Prefix: | mmm_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The approximate number of miles of the river plaintiffs are seeking to be cleaned. + References No definition available. + Details
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