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Commitments and Contingencies - Product Liability (Details)
9 Months Ended 12 Months Ended
Sep. 30, 2017
USD ($)
lawsuit
case
item
Dec. 31, 2016
item
Product Liability - Filters    
Product Liability Litigation    
Number of customers who obtained an order in the French Courts against 3M Purification SAS 1  
Number of cases settled in principle in period 2  
Product liability - Bair Hugger    
Product Liability Litigation    
Number of lawsuits filed 3,850 1,260
Accrued loss contingency reserve | $ $ 0  
Number of federal bellwether cases with trial-ready dates set | case 2  
Product liability - Bair Hugger | U.S. District Court for the Western District of Tennessee    
Product Liability Litigation    
Number of lawsuits filed | case 1  
Product Liability Lava Ultimate Dental Restorative Material    
Product Liability Litigation    
Number of lawsuits filed | lawsuit 2  
Product Liability Lava Ultimate Dental Restorative Material | U.S. District Court for the District of Minnesota    
Product Liability Litigation    
Number of lawsuits filed | lawsuit 1  
Number of plaintiffs 39  
Number of states involved in lawsuit 13