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Supplemental Equity and Comprehensive Income Information (Tables) | 6 Months Ended
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Jun. 30, 2025
Stockholders' Equity Note [Abstract] |
Schedule of Consolidated Statement of Changes in Equity | The table below presents the consolidated changes in equity for three and six months ended June 30, 2025 and 2024:
|  |  |  | 3M Company Shareholders |  | Non-controlling interest
(Millions) |  | Total |  | Common stock and additional paid-in capital |  | Retained earnings |  | Treasury stock |  | Accumulated other comprehensive income (loss) |
Balance at March 31, 2025 |  | $ | 4,523 |  |  | $ | 7,310 |  | $ | 37,432 |  | $ | (34,747) |  |  | $ | (5,531) |  |  | $ | 59 |
Net income |  | 725 |  |  |  |  | 723 |  |  |  |  |  |  | 2 |
Other comprehensive income (loss), net of tax |  | 305 |  |  |  |  |  |  |  |  | 305 |  |  | — |
Solventum spin-off |  | (3) |  |  |  |  | (14) |  |  |  |  | 11 |  |  |
Dividends declared |  | (390) |  |  |  |  | (390) |  |  |  |  |  |  |
Purchase of non-controlling interest |  | — |  | — |  |  |  |  |  |  |  |  | — |
Stock-based compensation |  | 44 |  |  | 44 |  |  |  |  |  |  |  |  |
Reacquired stock |  | (946) |  |  |  |  |  |  | (946) |  |  |  |  |
Issuances pursuant to stock option and benefit plans |  | 93 |  |  |  |  | (58) |  |  | 151 |  |  |  |  |
Balance at June 30, 2025 |  | $ | 4,351 |  |  | $ | 7,354 |  |  | $ | 37,693 |  |  | $ | (35,542) |  |  | $ | (5,215) |  |  | $ | 61 |
Balance at March 31, 2024 |  | $ | 4,933 |  |  | $ | 6,982 |  |  | $ | 37,472 |  |  | $ | (32,762) |  |  | $ | (6,826) |  |  | $ | 67 |
Net income |  | 1,151 |  |  |  |  | 1,145 |  |  |  |  |  |  | 6 |
Other comprehensive income (loss), net of tax |  | 674 |  |  |  |  |  |  |  |  | 675 |  |  | (1) |
Solventum spin-off |  | (2,169) |  |  |  |  | (2,753) |  |  |  |  | 584 |  |  |
Dividends declared |  | (386) |  |  |  |  | (386) |  |  |  |  |  |  |
Stock-based compensation |  | 173 |  |  | 173 |  |  |  |  |  |  |  |  |
Reacquired stock |  | (400) |  |  |  |  |  |  | (400) |  |  |  |  |
Issuances pursuant to stock option and benefit plans |  | 12 |  |  |  |  | (3) |  |  | 15 |  |  |  |  |
Balance at June 30, 2024 |  | $ | 3,988 |  |  | $ | 7,155 |  |  | $ | 35,475 |  |  | $ | (33,147) |  |  | $ | (5,567) |  |  | $ | 72 |
Balance at December 31, 2024 |  | $ | 3,894 |  |  | $ | 7,238 |  |  | $ | 36,797 |  |  | $ | (34,462) |  |  | $ | (5,731) |  |  | $ | 52 |
Net income |  | 1,847 |  |  |  |  | 1,839 |  |  |  |  |  |  | 8 |
Other comprehensive income (loss), net of tax |  | 505 |  |  |  |  |  |  |  |  | 505 |  |  |
Solventum spin-off |  | (3) |  |  |  |  | (14) |  |  |  |  | 11 |  |  |
Dividends declared |  | (786) |  |  |  |  | (786) |  |  |  |  |  |  |
Purchase of non-controlling interest |  | 1 |  |  | — |  |  |  |  |  |  |  |  | 1 |
Stock-based compensation |  | 116 |  |  | 116 |  |  |  |  |  |  |  |  |
Reacquired stock |  | (2,221) |  |  |  |  |  |  | (2,221) |  |  |  |  |
Issuances pursuant to stock option and benefit plans |  | 998 |  |  |  |  | (143) |  |  | 1,141 |  |  |  |  |
Balance at June 30, 2025 |  | $ | 4,351 |  |  | $ | 7,354 |  |  | $ | 37,693 |  |  | $ | (35,542) |  |  | $ | (5,215) |  |  | $ | 61 |
Balance at December 31, 2023 |  | $ | 4,868 |  |  | $ | 6,965 |  |  | $ | 37,479 |  |  | $ | (32,859) |  |  | $ | (6,778) |  |  | $ | 61 |
Net income |  | 2,084 |  |  |  |  | 2,073 |  |  |  |  |  |  | 11 |
Other comprehensive income (loss), net of tax |  | 627 |  |  |  |  |  |  |  |  | 627 |  |  | — |
Solventum spin-off |  | (2,169) |  |  |  |  | (2,753) |  |  |  |  | 584 |  |  |
Dividends declared |  | (1,221) |  |  |  |  | (1,221) |  |  |  |  |  |  |
Stock-based compensation |  | 190 |  |  | 190 |  |  |  |  |  |  |  |  |
Reacquired stock |  | (421) |  |  |  |  |  |  | (421) |  |  |  |  |
Issuances pursuant to stock option and benefit plans |  | 30 |  |  |  |  | (103) |  |  | 133 |  |  |  |  |
Balance at June 30, 2024 |  | $ | 3,988 |  |  | $ | 7,155 |  |  | $ | 35,475 |  |  | $ | (33,147) |  |  | $ | (5,567) |  |  | $ | 72 |
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) Attributable to 3M | The table below presents the changes in accumulated other comprehensive income (loss) attributable to 3M (AOCI), including the reclassifications out of AOCI by component for the three and six months ended June 30, 2025 and 2024:
(Millions) |  | Cumulative translation adjustment |  | Defined benefit pension and postretirement plans adjustment |  | Cash flow hedging instruments, unrealized gain (loss) |  | Total accumulated other comprehensive income (loss)
Balance at March 31, 2025, net of tax: |  | $ | (2,782) |  |  | $ | (2,705) |  |  | $ | (44) |  |  | $ | (5,531) |
Other comprehensive income (loss), before tax: |  |  |  |  |  |  |  |
Amounts before reclassifications |  | 287 |  |  | (7) |  |  | (91) |  |  | 189 |
Amounts reclassified out |  | — |  |  | 71 |  |  | (14) |  | 57 |
Total other comprehensive income (loss), before tax |  | 287 |  |  | 64 |  |  | (105) |  |  | 246 |
Tax effect 5 |  | 52 |  |  | (15) |  |  | 22 |  |  | 59 |
Total other comprehensive income (loss), net of tax |  | 339 |  |  | 49 |  |  | (83) |  |  | 305 |
Solventum spin-off |  | — |  |  | 11 |  |  | — |  |  | 11 |
Balance at June 30, 2025, net of tax: |  | $ | (2,443) |  |  | $ | (2,645) |  |  | $ | (127) |  |  | $ | (5,215) |
Balance at March 31, 2024, net of tax: |  | $ | (2,715) |  |  | $ | (4,083) |  |  | $ | (28) |  |  | $ | (6,826) |
Other comprehensive income (loss), before tax: |  |  |  |  |  |  |  |
Amounts before reclassifications |  | (148) |  |  | 218 |  |  | 23 |  |  | 93 |
Amounts reclassified out |  | 11 |  |  | 876 |  |  | (30) |  |  | 857 |
Total other comprehensive income (loss), before tax |  | (137) |  |  | 1,094 |  |  | (7) |  |  | 950 |
Tax effect 2 |  | (7) |  |  | (268) |  |  | — |  |  | (275) |
Total other comprehensive income (loss), net of tax |  | (144) |  |  | 826 |  |  | (7) |  |  | 675 |
Solventum spin-off |  | 64 |  |  | 520 |  |  | — |  |  | 584 |
Balance at June 30, 2024, net of tax: |  | $ | (2,795) |  |  | $ | (2,737) |  |  | $ | (35) |  |  | $ | (5,567) |
Balance at December 31, 2024, net of tax: |  | $ | (2,953) |  |  | $ | (2,763) |  |  | $ | (15) |  |  | $ | (5,731) |
Other comprehensive income (loss), before tax: |  |  |  |  |  |  |  |
Amounts before reclassifications |  | 436 |  |  | (7) |  |  | (105) |  |  | 324 |
Amounts reclassified out |  | — |  |  | 147 |  |  | (37) |  |  | 110 |
Total other comprehensive income (loss), before tax |  | 436 |  |  | 140 |  |  | (142) |  |  | 434 |
Tax effect 5 |  | 74 |  |  | (33) |  |  | 30 |  |  | 71 |
Total other comprehensive income (loss), net of tax |  | 510 |  |  | 107 |  |  | (112) |  |  | 505 |
Solventum spin-off |  | — |  |  | 11 |  |  | — |  |  | 11 |
Balance at June 30, 2025, net of tax: |  | $ | (2,443) |  |  | $ | (2,645) |  |  | $ | (127) |  |  | $ | (5,215) |
Balance at December 31, 2023, net of tax: |  | $ | (2,506) |  |  | $ | (4,218) |  |  | $ | (54) |  |  | $ | (6,778) |
Other comprehensive income (loss), before tax: |  |  |  |  |  |  |  |
Amounts before reclassifications |  | (401) |  |  | 285 |  |  | 84 |  |  | (32) |
Amounts reclassified out |  | 68 |  |  | 972 |  |  | (57) |  |  | 983 |
Total other comprehensive income (loss), before tax |  | (333) |  |  | 1,257 |  |  | 27 |  |  | 951 |
Tax effect 5 |  | (20) |  |  | (296) |  |  | (8) |  |  | (324) |
Total other comprehensive income (loss), net of tax |  | (353) |  |  | 961 |  |  | 19 |  |  | 627 |
Solventum spin-off |  | 64 |  |  | 520 |  |  | — |  |  | 584 |
Balance at June 30, 2024, net of tax: |  | $ | (2,795) |  |  | $ | (2,737) |  |  | $ | (35) |  |  | $ | (5,567) |
5 Includes tax expense (benefit) reclassified out of AOCI related to the following:
|  |  | Three months ended June 30, |  | Six months ended June 30, |  |  |
| (Millions) |  | 2025 |  | 2024 |  | 2025 |  | 2024 |  |  |
| Cumulative translation adjustment |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  |  |
| Defined benefit pension and postretirement plans adjustment |  | (17) |  |  | (216) |  |  | (35) |  |  | (229) |  |  |  |
| Cash flow hedging instruments, realized gain/loss |  | 4 |  |  | 7 |  |  | 9 |  |  | 13 |  |  |  |

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