Commitments and Contingencies - Environmental (Details)	1 Months Ended													3 Months Ended		6 Months Ended	9 Months Ended
	May 31, 2023 EUR (€) party	Mar. 31, 2023 party	Feb. 28, 2023 plaintiff	Aug. 31, 2022 plaintiff	Jul. 31, 2022 EUR (€)	Dec. 31, 2021 USD ($)	Sep. 30, 2021 EUR (€)	Jun. 30, 2020 lawsuit	Jun. 30, 2019 lawsuit	May 31, 2019 lawsuit	Apr. 30, 2019 USD ($)	Mar. 31, 2019 facility lawsuit	Jul. 31, 2018 USD ($) facility chemical defendant mi	Sep. 30, 2023 USD ($) lawsuit party	Jun. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) lawsuit case perfluorinated_material party plaintiff	Mar. 31, 2022 EUR (€)	Nov. 30, 2021 USD ($)
Product Liability Litigation
Increase in liabilities, gross					€ 571,000,000										$ 355,000,000	$ 500,000,000
Belgian Civil Litigation
Product Liability Litigation
Number of lawsuits pending | party														8			8
Settlement amount paid | €	€ 500
Number of family members awarded | party	4
City of Muscle Shoals, Alabama vs. 3M
Product Liability Litigation
Total number of named claimants | plaintiff			2
PFAS Contamination
Product Liability Litigation
Number of lawsuits filed | party	2	2
PWS Settlement | Pending Litigation
Product Liability Litigation
Estimate of possible settlement amount | $														$ 12,500,000,000			$ 12,500,000,000
Pre-tax charge on settlement | $														$ 10,300,000,000
Present value of possible loss														5.20%			5.20%
Putative Class Action
Product Liability Litigation
Number of lawsuits filed | party																	1
Minimum | PWS Settlement | Pending Litigation
Product Liability Litigation
Estimate of possible settlement amount | $														$ 10,500,000,000			$ 10,500,000,000
Maximum | PWS Settlement | Pending Litigation
Product Liability Litigation
Estimate of possible settlement amount | $														$ 12,500,000,000			$ 12,500,000,000
Zwijndrecht Site
Product Liability Litigation
Investment plan for environmental remediation | €							€ 125,000,000											€ 150,000,000
Investment plan for environmental remediation, period (in years)							3 years
City of Decatur, Decatur Utilities, and Morgan County
Product Liability Litigation
Investment plan for environmental remediation | $																			$ 99,000,000
Damages awarded | $											$ 35,000,000
Total number of named claimants | plaintiff				37
City Of Guin Water Works And Sewer Board
Product Liability Litigation
Settlement amount paid | $						$ 30,000,000
Environmental Matters - Regulatory Activities
Product Liability Litigation
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 - Litigation | New Jersey
Product Liability Litigation
Number of lawsuits filed								2				2
Number of additional new claims filed								2
Environmental Matters - Litigation | Salem County, New Jersey
Product Liability Litigation
Number of facilities related to the manufacture and disposal of PFAS | facility												2
Environmental Matters - Litigation | New Hampshire
Product Liability Litigation
Number of lawsuits filed										2
Environmental Matters - Litigation | Vermont
Product Liability Litigation
Number of lawsuits filed									2
Environmental Matters - Aqueous Film Forming Foam Litigation
Product Liability Litigation
Number of putative class action and other lawsuits																	6,006
Number of class action lawsuits																	48
Number of public water system lawsuits														689			689
Environmental Matters - Aqueous Film Forming Foam Litigation | Various state courts
Product Liability Litigation
Number of lawsuits pending														5			5
Number of lawsuits filed									8
Number of lawsuits served																	194
Environmental Matters - Aqueous Film Forming Foam Litigation | Federal court
Product Liability Litigation
Number of lawsuits pending														2			2
Environmental Matters - Other PFAS-related Environmental Litigation
Product Liability Litigation
Increase (decrease) accrued loss contingency reserve | $																	$ 10,500,000,000
Litigation payments | $																	$ 201,000,000
Environmental Matters - Other PFAS-related Environmental Litigation | New Jersey
Product Liability Litigation
Number of lawsuits filed																	30
Number of lawsuits seeking medical monitoring and damages | case																	10
Environmental Matters - Other PFAS-related Environmental Litigation | U.S. District Court of New York State
Product Liability Litigation
Settlement amount paid | $																	$ 65,000,000
Number of lawsuits filed																	10
Total number of named claimants | plaintiff																	20
Number of cases settled																	32
Environmental Matters - Other PFAS-related Environmental Litigation | U.S. District Court of Eastern District of New York
Product Liability Litigation
Number of lawsuits pending														22			22
Environmental Matters - Other PFAS-related Environmental Litigation | Alabama and Georgia
Product Liability Litigation
Number of putative class action and other lawsuits																	2
Environmental Matters - Other PFAS-related Environmental Litigation | Delaware.
Product Liability Litigation
Number of putative class action and other lawsuits																	1
Environmental Matters - Other PFAS-related Environmental Litigation | Decatur, Alabama
Product Liability Litigation
Number of perfluorinated materials (FBSA and FBSEE) | perfluorinated_material																	2
Environmental Matters Other Pfc Related Environmental Litigation, Individual Cases | New Jersey
Product Liability Litigation
Number of lawsuits filed																	20
Environmental Matters - Other Environmental Litigation
Product Liability Litigation
Accrued loss contingency reserve | $														$ 10,900,000,000			$ 10,900,000,000
Environmental Matters - Other Environmental Litigation | Other current liabilities
Product Liability Litigation
Accrued loss contingency reserve | $														3,100,000,000			3,100,000,000
Environmental Matters - Other Environmental Litigation | Other liabilities
Product Liability Litigation
Accrued loss contingency reserve | $														7,800,000,000			7,800,000,000
Environmental Matters - Other Environmental Litigation | New Jersey
Product Liability Litigation
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
Product Liability Litigation
Number of unnamed defendant | defendant													120
Environmental Matters - Remediation
Product Liability Litigation
Accrued loss contingency reserve | $														35,000,000			$ 35,000,000
Number of years remediation payments expected to be paid for applicable sites																	20 years
Environmental Matters - Other
Product Liability Litigation
Accrued loss contingency reserve | $														0			$ 0
Insurance receivables | $														$ 8,000,000			$ 8,000,000