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Divestitures	9 Months Ended
	Sep. 30, 2024
Business Combination, Asset Acquisition, and Joint Venture Formation [Abstract]
Divestitures	NOTE 4. Divestitures Refer to Note 3 to the Consolidated Financial Statements in 3M's 2023 Annual Report on Form 10-K for more information on relevant pre-2024 divestitures. One of the 2023 divestitures, the dental local anesthetic business, mentioned therein was part of the former Health Care business segment. Because this anesthetic business was divested prior to the separation of Solventum, its operations are not reflected as discontinued operations and instead are reflected herein as part of "Other" for all applicable periods presented as discussed in Note 19. On April 1, 2024, 3M completed the separation of its Health Care business (the Separation) through a pro rata distribution of 80.1% of the outstanding shares of Solventum Corporation (Solventum) to 3M stockholders. See Note 2 for additional detail, including information regarding reporting the historical net income of Solventum and applicable assets and liabilities included in the Separation in 3M's consolidated financial statements as discontinued operations.

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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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