Operating and Reporting Segments (Financial Information Relating to Company's Segments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2020
Segment Reporting Information [Line Items]
Earnings (loss) before income taxes	$ 6,014,566	$ 5,819,058	$ 3,123,788
Lennar Other
Segment Reporting Information [Line Items]
Unrealized gain (loss) on investments	(655,094)	510,802
Operating Segments
Segment Reporting Information [Line Items]
Total revenues	33,671,010	27,130,676	22,488,854
Operating earnings (loss)	6,495,463	6,277,264	3,482,206
Operating Segments | Homebuilding
Segment Reporting Information [Line Items]
Total revenues	31,951,335	25,545,242	20,981,136
Operating earnings (loss)	6,777,317	5,031,762	2,988,907
Earnings (loss) before income taxes	6,777,317	5,031,762	2,988,907
Operating Segments | Financial Services
Segment Reporting Information [Line Items]
Total revenues	809,680	898,745	890,311
Operating earnings (loss)	383,302	491,014	480,952
Earnings (loss) before income taxes	383,302	491,014	480,952
Operating Segments | Financial Services | Court Judgment
Segment Reporting Information [Line Items]
Provision for losses	35,500
Operating Segments | Multifamily
Segment Reporting Information [Line Items]
Total revenues	865,603	665,232	576,328
Operating earnings (loss)	69,493	21,453	22,681
Earnings (loss) before income taxes	69,493	21,453	22,681
Operating Segments | Lennar Other
Segment Reporting Information [Line Items]
Total revenues	44,392	21,457	41,079
Operating earnings (loss)	(734,649)	733,035	(10,334)
Earnings (loss) before income taxes	(734,649)	733,035	(10,334)
Unrealized gain (loss) on investments	(655,094)	510,802	0
Write-down of assets in unconsolidated entities	25,000
Corporate and unallocated
Segment Reporting Information [Line Items]
Corporate general and administrative expenses	(414,498)	(398,381)	(333,446)
Contribution Expense	(66,399)	(59,825)	(24,972)
Earnings (loss) before income taxes	(480,897)	(458,206)	(358,418)
Operating Segments And Corporate Non Segment
Segment Reporting Information [Line Items]
Earnings (loss) before income taxes	$ 6,014,566	$ 5,819,058	$ 3,123,788