Operating and Reporting Segments (Financial Information Related to Segments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2025	Feb. 29, 2024
Segment Reporting Information [Line Items]
Revenues	$ 7,631,545	$ 7,312,930
Operating Segments And Corporate
Segment Reporting Information [Line Items]
Operating earnings (loss)	698,238	930,786
Operating Segments
Segment Reporting Information [Line Items]
Revenues	7,631,545	7,312,930
Operating Segments | Homebuilding
Segment Reporting Information [Line Items]
Revenues	7,283,870	6,930,991
Operating earnings (loss)	809,273	1,028,796
Operating Segments | Lennar Financial Services
Segment Reporting Information [Line Items]
Revenues	277,077	249,720
Operating earnings (loss)	143,483	131,296
Operating Segments | Multifamily
Segment Reporting Information [Line Items]
Revenues	63,196	129,677
Operating earnings (loss)	(23)	(15,639)
Operating Segments | Lennar Other
Segment Reporting Information [Line Items]
Revenues	7,402	2,542
Operating earnings (loss)	(89,283)	(39,548)
Corporate and Unallocated
Segment Reporting Information [Line Items]
Operating earnings (loss)	$ (165,212)	$ (174,119)