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Earnings (Loss) Per Share | 3 Months Ended
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Mar. 31, 2024
Earnings Per Share [Abstract] |
Earnings (Loss) Per Share | NOTE 9. Earnings (Loss) Per Share
|  | Three months ended March 31, |  |  |
(Amounts in millions, except per share amounts) |  | 2024 |  | 2023 |  |  |  |  |  |
Numerator: |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to 3M |  | $ | 928 |  |  | $ | 976 |  |  |  |  |  |  |
Denominator: |  |  |  |  |  |  |  |  |  |
Denominator for weighted average 3M common shares outstanding – basic |  | 555.0 |  |  | 552.7 |  |  |  |  |  |  |
Dilution associated with stock-based compensation plans |  | 0.9 |  |  | 0.5 |  |  |  |  |  |  |
Denominator for weighted average 3M common shares outstanding – diluted |  | 555.9 |  |  | 553.2 |  |  |  |  |  |  |
Earnings (loss) per share attributable to 3M common shareholders – basic |  | $ | 1.67 |  |  | $ | 1.77 |  |  |  |  |  |  |
Earnings (loss) per share attributable to 3M common shareholders – diluted |  | $ | 1.67 |  |  | $ | 1.76 |  |  |  |  |  |  |

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