Document and Entity Information
9 Months Ended
Aug. 31, 2018
Document and Entity Information [Abstract]  
Entity Registrant Name IHS Markit Ltd.
Entity Central Index Key 0001598014
Current Fiscal Year End Date --11-30
Entity Filer Category Large Accelerated Filer
Document Type 10-Q
Document Period End Date Aug. 31, 2018
Document Fiscal Year Focus 2018
Document Fiscal Period Focus Q3
Amendment Flag false
Entity Common Stock, Shares Outstanding 394,165,229