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Earnings (Loss) Per Share | 12 Months Ended
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Dec. 31, 2023
Earnings Per Share [Abstract] |
Earnings (Loss) Per Share | NOTE 11. Earnings (Loss) Per Share The difference in the weighted average 3M shares outstanding for calculating basic and diluted earnings per share attributable to 3M common shareholders is the result of the dilution associated with the Company’s stock-based compensation plans. Certain awards outstanding under these stock-based compensation plans during the years 2023, 2022 and 2021 were not included in the computation of diluted earnings per share attributable to 3M common shareholders because they would have had an anti-dilutive effect (36.1 million average shares for 2023, 30.3 million average shares for 2022, and 7.8 million average shares for 2021). In periods of net losses, these anti-dilutive effects include all weighted average awards outstanding and weighted average shares outstanding is the same for the calculations of both basic and diluted loss per share. The computations for basic and diluted earnings per share follow:
(Amounts in millions, except per share amounts) |  |  |  |  |  | 2023 |  | 2022 |  | 2021
Numerator: |  |  |  |  |  |  |  |  |  |
Net income (loss) attributable to 3M |  |  |  |  |  | $ | (6,995) |  |  | $ | 5,777 |  |  | $ | 5,921 |
Denominator: |  |  |  |  |  |  |  |  |  |
Denominator for weighted average 3M common shares outstanding – basic |  |  |  |  |  | 553.9 |  |  | 566.0 |  |  | 579.0 |
Dilution associated with stock-based compensation plans |  |  |  |  |  | — |  |  | 1.6 |  |  | 6.3 |
Denominator for weighted average 3M common shares outstanding – diluted |  |  |  |  |  | 553.9 |  |  | 567.6 |  |  | 585.3 |
Earnings (loss) per share attributable to 3M common shareholders — basic |  |  |  |  |  | $ | (12.63) |  |  | $ | 10.21 |  |  | $ | 10.23 |
Earnings (loss) per share attributable to 3M common shareholders — diluted |  |  |  |  |  | $ | (12.63) |  |  | $ | 10.18 |  |  | $ | 10.12 |

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