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Divestitures	6 Months Ended
	Jun. 30, 2025
Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract]
Divestitures	Note 4. Divestitures Refer to Note 4 to the Consolidated Financial Statements in 3M's 2024 Annual Report on Form 10-K for more information on relevant pre-2025 divestitures. In June 2025, 3M completed the sale of its fused silica business, formerly part of the Transportation and Electronics business, for immaterial proceeds slightly below the business's book value.

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- Definition

The entire disclosure for business combinations, including leverage buyout transactions (as applicable), and divestitures. This may include a description of a business combination or divestiture (or series of individually immaterial business combinations or divestitures) completed during the period, including background, timing, and assets and liabilities recognized and reclassified or sold. This element does not include fixed asset sales and plant closings.

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-Topic 205
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-Name Accounting Standards Codification
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-Topic 805
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