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Supplemental Equity and Comprehensive Income Information (Tables) | 3 Months Ended
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Mar. 31, 2019
Supplemental Equity and Comprehensive Income Information |
Consolidated Statement of Changes in Equity | Three months ended March 31, 2019
|  |  |  |  | 3M Company Shareholders |  |  |  |
|  |  |  |  | Common |  |  |  |  |  |  |  | Accumulated |  |  |  |
|  |  |  |  | Stock and |  |  |  |  |  |  |  | Other |  |  |  |
|  |  |  |  | Additional |  |  |  |  |  |  |  | Comprehensive |  | Non- |
|  |  |  |  | Paid-in |  | Retained |  | Treasury |  | Income |  | controlling |
(Millions) |  | Total |  | Capital |  | Earnings |  | Stock |  | (Loss) |  | Interest |
Balance at December 31, 2018 |  | $ | 9,848 |  | $ | 5,652 |  | $ | 40,636 |  | $ | (29,626) |  | $ | (6,866) |  | $ | 52 |
Impact of adoption of ASU No. 2018-02 (See Note 1) |  |  | — |  |  |  |  |  | 853 |  |  |  |  |  | (853) |  |  |  |
Impact of adoption of ASU No. 2016-02 (See Note 1) |  |  | 14 |  |  |  |  |  | 14 |  |  |  |  |  |  |  |  |  |
Net income |  |  | 893 |  |  |  |  |  | 891 |  |  |  |  |  |  |  |  | 2 |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative translation adjustment |  |  | 77 |  |  |  |  |  |  |  |  |  |  |  | 77 |  |  | — |
Defined benefit pension and post-retirement plans adjustment |  |  | 84 |  |  |  |  |  |  |  |  |  |  |  | 84 |  |  | — |
Cash flow hedging instruments |  |  | 6 |  |  |  |  |  |  |  |  |  |  |  | 6 |  |  | — |
Total other comprehensive income (loss), net of tax |  |  | 167 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared |  |  | (830) |  |  |  |  |  | (830) |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  | 112 |  |  | 112 |  |  |  |  |  |  |  |  |  |  |  |  |
Reacquired stock |  |  | (666) |  |  |  |  |  |  |  |  | (666) |  |  |  |  |  |  |
Issuances pursuant to stock option and benefit plans |  |  | 219 |  |  |  |  |  | (405) |  |  | 624 |  |  |  |  |  |  |
Balance at March 31, 2019 |  | $ | 9,757 |  | $ | 5,764 |  | $ | 41,159 |  | $ | (29,668) |  | $ | (7,552) |  | $ | 54 |
Three months ended March 31, 2018
|  |  |  |  | 3M Company Shareholders |  |  |  |
|  |  |  |  | Common |  |  |  |  |  |  |  | Accumulated |  |  |  |
|  |  |  |  | Stock and |  |  |  |  |  |  |  | Other |  |  |  |
|  |  |  |  | Additional |  |  |  |  |  |  |  | Comprehensive |  | Non- |
|  |  |  |  | Paid-in |  | Retained |  | Treasury |  | Income |  | controlling |
(Millions) |  | Total |  | Capital |  | Earnings |  | Stock |  | (Loss) |  | Interest |
Balance at December 31, 2017 |  | $ | 11,622 |  | $ | 5,361 |  | $ | 39,115 |  | $ | (25,887) |  | $ | (7,026) |  | $ | 59 |
Net income |  |  | 606 |  |  |  |  |  | 602 |  |  |  |  |  |  |  |  | 4 |
Other comprehensive income (loss), net of tax: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cumulative translation adjustment |  |  | 167 |  |  |  |  |  |  |  |  |  |  |  | 168 |  |  | (1) |
Defined benefit pension and post-retirement plans adjustment |  |  | 116 |  |  |  |  |  |  |  |  |  |  |  | 116 |  |  | — |
Cash flow hedging instruments |  |  | (61) |  |  |  |  |  |  |  |  |  |  |  | (61) |  |  | — |
Total other comprehensive income (loss), net of tax |  |  | 222 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividends declared |  |  | (810) |  |  |  |  |  | (810) |  |  |  |  |  |  |  |  |  |
Stock-based compensation |  |  | 144 |  |  | 144 |  |  |  |  |  |  |  |  |  |  |  |  |
Reacquired stock |  |  | (972) |  |  |  |  |  |  |  |  | (972) |  |  |  |  |  |  |
Issuances pursuant to stock option and benefit plans |  |  | 227 |  |  |  |  |  | (454) |  |  | 681 |  |  |  |  |  |  |
Balance at March 31, 2018 |  | $ | 11,039 |  | $ | 5,505 |  | $ | 38,453 |  | $ | (26,178) |  | $ | (6,803) |  | $ | 62 |
Changes in Accumulated Other Comprehensive Income (Loss) Attributable to 3M | Three months ended March 31, 2019
|  |  |  |  |  |  |  |  |  |  | Total |
|  |  |  |  | Defined Benefit |  | Cash Flow |  | Accumulated |
|  |  |  |  | Pension and |  | Hedging |  | Other |
|  | Cumulative |  | Postretirement |  | Instruments, |  | Comprehensive |
|  | Translation |  | Plans |  | Unrealized |  | Income |
(Millions) |  | Adjustment |  | Adjustment |  | Gain (Loss) |  | (Loss) |
Balance at December 31, 2018, net of tax: |  | $ | (2,098) |  | $ | (4,832) |  | $ | 64 |  | $ | (6,866) |
Impact of adoption of ASU No. 2018-02 (See Note 1) |  |  | (13) |  |  | (817) |  |  | (23) |  |  | (853) |
Other comprehensive income (loss), before tax: |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts before reclassifications |  |  | 103 |  |  | — |  |  | 13 |  |  | 116 |
Amounts reclassified out |  |  | — |  |  | 104 |  |  | (7) |  |  | 97 |
Total other comprehensive income (loss), before tax |  |  | 103 |  |  | 104 |  |  | 6 |  |  | 213 |
Tax effect |  |  | (26) |  |  | (20) |  |  | — |  |  | (46) |
Total other comprehensive income (loss), net of tax |  |  | 77 |  |  | 84 |  |  | 6 |  |  | 167 |
Balance at March 31, 2019, net of tax: |  | $ | (2,034) |  | $ | (5,565) |  | $ | 47 |  | $ | (7,552) |
Three months ended March 31, 2018
|  |  |  |  |  |  |  |  |  |  | Total |
|  |  |  |  | Defined Benefit |  | Cash Flow |  | Accumulated |
|  |  |  |  | Pension and |  | Hedging |  | Other |
|  | Cumulative |  | Postretirement |  | Instruments, |  | Comprehensive |
|  | Translation |  | Plans |  | Unrealized |  | Income |
(Millions) |  | Adjustment |  | Adjustment |  | Gain (Loss) |  | (Loss) |
Balance at December 31, 2017, net of tax: |  | $ | (1,638) |  | $ | (5,276) |  | $ | (112) |  | $ | (7,026) |
Other comprehensive income (loss), before tax: |  |  |  |  |  |  |  |  |  |  |  |  |
Amounts before reclassifications |  |  | 129 |  |  | — |  |  | (82) |  |  | 47 |
Amounts reclassified out |  |  | — |  |  | 151 |  |  | 34 |  |  | 185 |
Total other comprehensive income (loss), before tax |  |  | 129 |  |  | 151 |  |  | (48) |  |  | 232 |
Tax effect |  |  | 39 |  |  | (35) |  |  | (13) |  |  | (9) |
Total other comprehensive income (loss), net of tax |  |  | 168 |  |  | 116 |  |  | (61) |  |  | 223 |
Balance at March 31, 2018, net of tax: |  | $ | (1,470) |  | $ | (5,160) |  | $ | (173) |  | $ | (6,803) |
Reclassifications Out of Accumulated Other Comprehensive Income |
|  | Amount Reclassified from |  |
Details about Accumulated Other |  | Accumulated Other Comprehensive Income |  |
Comprehensive Income Components |  | Three months ended March 31, |  | Location on Income
(Millions) |  | 2019 |  | 2018 |  | Statement
Gains (losses) associated with defined benefit pension and postretirement plans amortization |  |  |  |  |  |  |  |
Prior service benefit |  | $ | 16 |  | $ | 19 |  | See Note 11
Net actuarial loss |  |  | (120) |  |  | (170) |  | See Note 11
Total before tax |  |  | (104) |  |  | (151) |  |
Tax effect |  |  | 20 |  |  | 35 |  | Provision for income taxes
Net of tax |  | $ | (84) |  | $ | (116) |  |
Cash flow hedging instruments gains (losses) |  |  |  |  |  |  |  |
Foreign currency forward/option contracts |  | $ | 7 |  | $ | (34) |  | Cost of sales
Total before tax |  |  | 7 |  |  | (34) |  |
Tax effect |  |  | (1) |  |  | 8 |  | Provision for income taxes
Net of tax |  | $ | 6 |  | $ | (26) |  |
Total reclassifications for the period, net of tax |  | $ | (78) |  | $ | (142) |  |

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