Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Revenues [Abstract]
Revenues	$ 6,203,516	$ 5,325,468
Cost and expenses:
Corporate general and administrative	113,661	110,531
Charitable foundation contribution	12,538	12,314
Total costs and expenses	5,123,151	4,474,294
Homebuilding equity in loss from unconsolidated entities	(9,752)	(7,897)
Earnings (loss) before income taxes	676,735	1,327,014
Provision for income taxes	(167,420)	(310,105)
Net earnings (including net earnings attributable to noncontrolling interests)	509,315	1,016,909
Less: Net earnings attributable to noncontrolling interests	5,734	15,540
Net earnings attributable to Lennar	503,581	1,001,369
Other comprehensive income (loss), net of tax:
Net unrealized gain (loss) on securities available-for-sale	742	(942)
Reclassification adjustments for gain included in earnings, net of tax	2,285	0
Total other comprehensive income (loss), net of tax	3,027	(942)
Total comprehensive income attributable to Lennar	506,608	1,000,427
Total comprehensive income attributable to noncontrolling interests	$ 5,734	$ 15,540
Basic earnings per share (in dollars per share)	$ 1.70	$ 3.20
Diluted earnings per share (in dollars per share)	$ 1.69	$ 3.20
Homebuilding
Revenues [Abstract]
Revenues	$ 5,752,205	$ 4,943,056
Lennar Other
Cost and expenses:
Lennar Other unrealized gain (loss) from technology investments	(395,170)	469,745
Operating Segments | Homebuilding
Revenues [Abstract]
Revenues	5,752,205	4,943,056
Cost and expenses:
Cost and expenses	4,641,898	4,118,286
Corporate general and administrative	0	0
Charitable foundation contribution	0	0
Homebuilding equity in loss from unconsolidated entities	(286)	(4,565)
Homebuilding other income (expense), net	(171)	12,975
Earnings (loss) before income taxes	1,109,850	833,180
Operating Segments | Financial Services
Revenues [Abstract]
Revenues	176,701	244,069
Cost and expenses:
Cost and expenses	85,910	97,862
Corporate general and administrative	0	0
Charitable foundation contribution	0	0
Earnings (loss) before income taxes	90,791	146,207
Operating Segments | Multifamily
Revenues [Abstract]
Revenues	267,359	131,443
Cost and expenses:
Cost and expenses	263,737	131,049
Corporate general and administrative	0	0
Charitable foundation contribution	0	0
Multifamily equity in earnings (loss) from unconsolidated entities and other gain	1,805	(1,268)
Earnings (loss) before income taxes	5,427	(874)
Operating Segments | Lennar Other
Revenues [Abstract]
Revenues	7,251	6,900
Cost and expenses:
Cost and expenses	5,407	4,252
Corporate general and administrative	0	0
Charitable foundation contribution	0	0
Lennar Other unrealized gain (loss) from technology investments	(395,170)	469,745
Lennar Other equity in loss from unconsolidated entities and other expense, net, and other gain	(9,808)	(1,047)
Earnings (loss) before income taxes	(403,134)	471,346
Corporate and Unallocated
Revenues [Abstract]
Revenues	0	0
Cost and expenses:
Corporate general and administrative	113,661	110,531
Charitable foundation contribution	12,538	12,314
Earnings (loss) before income taxes	$ (126,199)	$ (122,845)