| Component: (Network and Table) | |
|---|---|
| Network | 40801 - Disclosure - Income Taxes - Income Before Taxes (Details) (http://www.mmm.com/role/DisclosureIncomeTaxesIncomeBeforeTaxesDetails) |
| Table | (Implied) |
| Reporting Entity [Axis] | 0000066740 (http://www.sec.gov/CIK) |
| Income Taxes | Period [Axis] | ||
|---|---|---|---|
2016-01-01 - 2016-12-31 | 2015-01-01 - 2015-12-31 | 2014-01-01 - 2014-12-31 | |
Income Taxes | |||
Income Before Income Taxes | |||
United States | |||
International | |||
Income before income taxes | 7,053,000,000 | 6,823,000,000 | 7,026,000,000 |