|
Stock-Based Compensation (Details)
|
3 Months Ended |
|
Mar. 31, 2015
|
| Share-based Compensation Arrangement by Share-based Payment Award Activity |
|
| Retirement age eligibility for employees |
55 years |
| Retirement eligibility for employees, minimum years of service required |
5 years |
| Percent of stock-based compensation related to retiree-eligible population (as a percent) |
35.00% |
| 3M Long Term Incentive Plan |
|
| Share-based Compensation Arrangement by Share-based Payment Award Activity |
|
| Number of shares authorized |
100,000,000 |
| Number of shares available for grant under the 2008 Long Term Incentive Plan Program (including additional subsequent shareholder approvals) |
19,593,667 |