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Acquisitions and Divestitures - Divestitures Narrative (Details) $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
May 31, 2020 USD ($) | Jan. 31, 2020 USD ($) | Aug. 31, 2019 USD ($) | Sep. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) businessDivested | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Number of businesses sold | businessDivested |  |  |  |  | 0 |  |
Proceeds from divestiture of businesses |  |  |  |  | $ 0 | $ 576 | $ 236
Noncontrolling interest in the new company |  |  |  |  | 71 | 64 |
Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Operating income of businesses held for sale |  |  |  |  | 120 | $ 160 | $ 160
Floor products business | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Annual sales of business sold |  |  |  |  | $ 30 |  |
Food Safety Division business | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Forecast |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Proceeds from divestiture of businesses |  |  |  | $ 1,000 |  |  |
Food Safety Division business | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | NEOGEN | Forecast |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Ownership interest after spinoff (as a percent) |  |  |  | 49.90% |  |  |
Food Safety Division business | Discontinued Operations, Disposed of by Means Other than Sale, Spinoff | Shareholders Of 3M | Forecast |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Ownership interest after spinoff (as a percent) |  |  |  | 50.10% |  |  |
Advanced ballistic protection business | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Annual sales of business sold |  | $ 85 |  |  |  |  |
Proceeds from divested businesses |  | 86 |  |  |  |  |
Maximum contingent consideration receivable depending on outcome of pending tenders |  | $ 25 |  |  |  |  |
Drug delivery business | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Annual sales of business sold | $ 380 |  |  |  |  |  |
Proceeds from divestiture of businesses | 487 |  |  |  |  |  |
Consideration from sale of business | 617 |  |  |  |  |  |
Interest-bearing security received in divestiture | 70 |  |  |  |  |  |
Noncontrolling interest in the new company | $ 60 |  |  |  |  |  |
Noncontrolling interest in new company (as a percent) | 17.00% |  |  |  |  |  |
Pre-tax gain on sale | $ 387 |  |  |  |  |  |
Gas and flame detection business | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Annual sales of business sold |  |  | $ 120 |  |  |  |
Gas and flame detection business | Safety and Industrial | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |  |  |  |
Pre-tax gain on sale |  |  | $ 112 |  |  |  |

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