Document And Entity Information	6 Months Ended
	May 31, 2019 shares
Class of Stock [Line Items]
Entity Registrant Name	LENNAR CORP /NEW/
Entity Central Index Key	0000920760
Current Fiscal Year End Date	--11-30
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	May 31, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Emerging Growth Company	false
Entity Small Business	false
Entity Current Reporting Status	Yes
Entity Shell Company	false
Class A Common Stock
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding	284,403,290
Class B Common Stock
Class of Stock [Line Items]
Entity Common Stock, Shares Outstanding	37,743,090