Investments in Unconsolidated Entities (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended
		Feb. 28, 2022	Nov. 30, 2021
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Total equity commitments		$ 1,600,000
Equity commitments raised during period		350,000
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Total equity commitments		125,000
Total acquisition funding		4,000,000
Homebuilding
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		205,000	$ 241,000
Lennar's carrying value of investments	[1]	1,066,256	972,084
Multifamily
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		985,100	$ 855,200
Multifamily | Lennar Multifamily Fund
Schedule of Equity Method Investments [Line Items]
Total equity commitments		$ 1,000,000
Fund ownership percentage		4.00%
Lennar's carrying value of investments		$ 10,300

[1] Under certain provisions of Accounting Standards Codification ("ASC") Topic 810, Consolidations ("ASC 810"), the Company is required to separately disclose on its condensed consolidated balance sheets the assets owned by consolidated variable interest entities ("VIEs") and liabilities of consolidated VIEs as to which neither Lennar Corporation, nor any of its subsidiaries, has any obligations. As of February 28, 2022, total assets include $1.1 billion related to consolidated VIEs of which $66.9 million is included in Homebuilding cash and cash equivalents, $0.3 million in Homebuilding receivables, net, $703.4 million in Homebuilding land and land under development, $218.3 million in Homebuilding consolidated inventory not owned, $1.1 million in Homebuilding investments in unconsolidated entities, $22.1 million in Homebuilding other assets and $59.4 million in Multifamily assets. As of November 30, 2021, total assets include $1.1 billion related to consolidated VIEs of which $60.9 million is included in Homebuilding cash and cash equivalents, $4.4 million in Homebuilding receivables, net, $14.3 million in Homebuilding finished homes and construction in progress, $697.1 million in Homebuilding land and land under development, $239.2 million in Homebuilding consolidated inventory not owned, $1.1 million in Homebuilding investments in unconsolidated entities, $17.4 million in Homebuilding other assets and $80.6 million in Multifamily assets.