XML 15 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information
3 Months Ended
Mar. 31, 2018
shares
Document and Entity Information  
Entity Registrant Name 3M Company
Trading Symbol mmm
Entity Central Index Key 0000066740
Document Type 10-Q
Document Period End Date Mar. 31, 2018
Amendment Flag false
Current Fiscal Year End Date --12-31
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Entity Common Stock, Shares Outstanding 593,692,282
Document Fiscal Year Focus 2018
Document Fiscal Period Focus Q1