Cover Page	3 Months Ended
	Feb. 29, 2020 shares
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Feb. 29, 2020
Document Transition Report	false
Entity Registrant Name	IHS MARKIT LTD.
Entity Incorporation, State or Country Code	D0
Entity File Number	001-36495
Entity Tax Identification Number	98-1166311
Entity Address, Address Line One	4th Floor, Ropemaker Place
Entity Address, Address Line Two	25 Ropemaker Street
Entity Address, City or Town	London
Entity Address, Country	GB
Entity Address, Postal Zip Code	EC2Y 9LY
Country Region	44
City Area Code	20
Local Phone Number	7260 2000
Title of 12(b) Security	Common Shares, $0.01 par value per share
Trading Symbol	INFO
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding	398,916,408
Entity Central Index Key	0001598014
Current Fiscal Year End Date	--11-30
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q1
Amendment Flag	false