Investments in Unconsolidated Entities (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		May 31, 2022	May 31, 2022	May 31, 2021	Nov. 30, 2021
Schedule of Equity Method Investments [Line Items]
Distributions of capital from unconsolidated entities			$ 239,123	$ 231,545
Operating Segments
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		$ 2,047,682	2,047,682		$ 1,972,383
Upward America Venture
Schedule of Equity Method Investments [Line Items]
Total equity commitments		1,600,000	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	125,000
Lennar's carrying value of investments		33,300	33,300		13,300
Homebuilding
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		184,100	184,100		241,000
Lennar's carrying value of investments	[1]	1,083,813	1,083,813		972,084
Homebuilding | Operating Segments
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		1,083,813	1,083,813		972,084
Multifamily
Schedule of Equity Method Investments [Line Items]
Non-recourse debt with completion guarantees		1,000,000	1,000,000		855,200
Multifamily | Operating Segments
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		638,559	638,559		654,029
Multifamily | Lennar Multifamily Fund
Schedule of Equity Method Investments [Line Items]
Total equity commitments		1,000,000	1,000,000
Lennar's carrying value of investments		$ (600)	$ (600)
Fund ownership percentage		4.00%	4.00%
Distributions of capital from unconsolidated entities		$ 11,400
Lennar Other | Operating Segments
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		325,310	$ 325,310		346,270
Lennar Other | Rialto Funds and Investment Vehicles | Operating Segments
Schedule of Equity Method Investments [Line Items]
Lennar's carrying value of investments		$ 201,600	$ 201,600		$ 200,600

[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 May 31, 2022, total assets include $1.6 billion related to consolidated VIEs of which $73.9 million is included in Homebuilding cash and cash equivalents, $0.6 million in Homebuilding receivables, net, $37.2 million in Homebuilding finished homes and construction in progress, $837.6 million in Homebuilding land and land under development, $591.2 million in Homebuilding consolidated inventory not owned, $1.0 million in Homebuilding investments in unconsolidated entities, $22.9 million in Homebuilding other assets and $34.7 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.