XML 21 R1.htm IDEA: XBRL DOCUMENT v3.10.0.1
Document and Entity Information
6 Months Ended
Jun. 30, 2018
$ / shares
shares
Entity Registrant Name SIMON PROPERTY GROUP INC /DE/
Entity Central Index Key 0001063761
Document Type 10-Q
Document Period End Date Jun. 30, 2018
Amendment Flag false
Current Fiscal Year End Date --12-31
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
Document Fiscal Year Focus 2018
Document Fiscal Period Focus Q2
Common stock  
Entity Common Stock, Shares Outstanding | shares 309,209,683
Entity Listing, Par Value Per Share | $ / shares $ 0.0001
Class B common stock  
Entity Common Stock, Shares Outstanding | shares 8,000
Entity Listing, Par Value Per Share | $ / shares $ 0.0001