Operating and Reporting Segments (Financial Information Relating to Company's Segments) (Details) - USD ($) $ in Thousands	12 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2022
Segment Reporting Information [Line Items]
Total revenues	$ 35,441,452	$ 34,233,366	$ 33,671,010
Earnings before income taxes	5,184,908	5,202,304	6,014,566
Lennar Other
Segment Reporting Information [Line Items]
Unrealized gain (loss) on investments	25,180	(50,162)
Operating Segments
Segment Reporting Information [Line Items]
Total revenues	35,441,452	34,233,366	33,671,010
Operating Segments | Homebuilding
Segment Reporting Information [Line Items]
Total revenues	33,906,426	32,660,987	31,951,335
Operating earnings (loss):	5,342,252	5,527,707	6,777,317
Operating Segments | Financial Services
Segment Reporting Information [Line Items]
Total revenues	1,109,263	976,859	809,680
Operating earnings (loss):	577,184	509,461	383,302
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	411,537	573,485	865,603
Operating earnings (loss):	42,635	(50,651)	69,493
Operating Segments | Lennar Other
Segment Reporting Information [Line Items]
Total revenues	14,226	22,035	44,392
Operating earnings (loss):	(47,967)	(209,788)	(734,649)
Unrealized gain (loss) on investments	25,180	(50,162)	(655,094)
Other realized gain	46,500
Write Off of non public technology		65,000
Corporate and unallocated
Segment Reporting Information [Line Items]
Operating earnings (loss):	(729,196)	(574,425)	(480,897)
Operating Segments And Corporate Non Segment
Segment Reporting Information [Line Items]
Operating earnings (loss):	$ 5,184,908	$ 5,202,304	$ 6,014,566