Document and Entity Information
3 Months Ended
Feb. 28, 2019
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 Feb. 28, 2019
Document Fiscal Year Focus 2019
Document Fiscal Period Focus Q1
Amendment Flag false
Entity Small Business false
Entity Emerging Growth Company false
Entity Common Stock, Shares Outstanding 399,748,336