Significant Accounting Policies - Foreign Currency Translation (Details) $ in Millions, VEF in Billions |
Dec. 31, 2017
VEF
|
Dec. 31, 2017
USD ($)
|
|---|---|---|
| Foreign Currency Translation | ||
| Maximum balance of company's net monetary assets in Venezuelan bolivars | VEF | VEF 10.0 | |
| Exchange rate established by Venezuelan government from bolivars to dollars - DIPRO | 10 | 10 |
| Exchange rate established by Venezuelan government from bolivars to dollars - DICOM2 | 3,300 | 3,300 |
| Accumulated other comprehensive loss that 3M Company has recorded from its Venezuelan subsidiary | $ | $ 145 |