Operating and Reporting Segments (Disclosure Of Assets and Liabilities) (Details) - USD ($) $ in Thousands		3 Months Ended	6 Months Ended
		May 31, 2020	May 31, 2020	Nov. 30, 2019
Segment Reporting Information [Line Items]
Cash and cash equivalents		$ 1,641,921	$ 1,641,921	$ 1,445,996
Restricted cash		14,961	14,961	22,695
Receivables, net		981,297	981,297	906,877
Inventories		18,275,903	18,275,903	18,091,614
Loans held-for-sale		1,163,356	1,163,356	1,644,939
Loans held-for-investment, net		71,268	71,268	73,867
Investments held-to-maturity		164,982	164,982	244,406
Investments available-for-sale		53,585	53,585	51,938
Investments in unconsolidated entities		2,045,458	2,045,458	1,973,913
Goodwill		3,632,058	3,632,058	3,657,875
Other assets		1,264,236	1,264,236	1,245,391
Assets	[1]	29,309,025	29,309,025	29,359,511
Senior notes and other debts payable		8,937,382	8,937,382	9,573,696
Other liabilities		3,739,019	3,739,019	3,751,985
Total liabilities	[2]	12,676,401	12,676,401	13,325,681
Self-insurance reserves		62,400	62,400	60,700
Homebuilding
Segment Reporting Information [Line Items]
Cash and cash equivalents	[1]	1,398,682	1,398,682	1,200,832
Restricted cash	[1]	9,569	9,569	9,698
Receivables, net	[1]	299,494	299,494	329,124
Inventories	[1]	17,947,406	17,947,406	17,776,507
Investments in unconsolidated entities	[1]	973,044	973,044	1,009,035
Goodwill	[1]	3,442,359	3,442,359	3,442,359
Other assets	[1]	1,080,186	1,080,186	1,021,684
Assets	[1]	25,150,740	25,150,740	24,789,239
Other liabilities	[2]	1,900,970	1,900,970	1,900,955
Total liabilities	[2]	10,774,276	10,774,276	11,007,038
Financial Services
Segment Reporting Information [Line Items]
Assets	[1]	2,577,805	2,577,805	3,006,024
Total liabilities		1,663,548	1,663,548	2,056,450	[2]
Multifamily
Segment Reporting Information [Line Items]
Assets	[1]	1,127,929	1,127,929	1,068,831
Total liabilities		222,387	222,387	232,155	[2]
Lennar Other
Segment Reporting Information [Line Items]
Assets	[1]	452,551	452,551	495,417
Total liabilities		16,190	16,190	30,038	[2]
Operating Segments | Financial Services
Segment Reporting Information [Line Items]
Cash and cash equivalents		224,229	224,229	234,113
Restricted cash		5,392	5,392	12,022
Receivables, net		594,620	594,620	500,847
Inventories		0	0	0
Loans held-for-sale		1,163,356	1,163,356	1,644,939
Loans held-for-investment, net		69,846	69,846	73,867
Investments held-to-maturity		164,982	164,982	190,289
Investments available-for-sale		0	0	3,732
Investments in unconsolidated entities		70,844	70,844	0
Goodwill		189,699	189,699	215,516
Other assets		94,837	94,837	130,699
Assets		2,577,805	2,577,805	3,006,024
Senior notes and other debts payable		1,435,538	1,435,538	1,745,755
Other liabilities		228,010	228,010	310,695
Total liabilities		1,663,548	1,663,548	2,056,450
Operating Segments | Multifamily
Segment Reporting Information [Line Items]
Cash and cash equivalents		13,061	13,061	8,711
Restricted cash		0	0	0
Receivables, net		87,183	87,183	76,906
Inventories		328,497	328,497	315,107
Loans held-for-sale		0	0	0
Loans held-for-investment, net		0	0	0
Investments held-to-maturity		0	0	0
Investments available-for-sale		0	0	48,206
Investments in unconsolidated entities		621,465	621,465	561,190
Goodwill		0	0	0
Other assets		77,723	77,723	58,711
Assets		1,127,929	1,127,929	1,068,831
Senior notes and other debts payable		0	0	36,125
Other liabilities		222,387	222,387	196,030
Total liabilities		222,387	222,387	232,155
Operating Segments | Lennar Other
Segment Reporting Information [Line Items]
Cash and cash equivalents		5,949	5,949	2,340
Restricted cash		0	0	975
Receivables, net		0	0	0
Inventories		0	0	0
Loans held-for-sale		0	0	0
Loans held-for-investment, net		1,422	1,422	0
Investments held-to-maturity		0	0	54,117
Investments available-for-sale		53,585	53,585	0
Investments in unconsolidated entities		380,105	380,105	403,688
Goodwill		0	0	0
Other assets		11,490	11,490	34,297
Assets		452,551	452,551	495,417
Senior notes and other debts payable		6,170	6,170	15,178
Other liabilities		10,020	10,020	14,860
Total liabilities		16,190	16,190	30,038
Write-down of investments in unconsolidated entities		25,000	25,000
Operating Segments And Corporate | Homebuilding
Segment Reporting Information [Line Items]
Cash and cash equivalents		1,398,682	1,398,682	1,200,832
Restricted cash		9,569	9,569	9,698
Receivables, net		299,494	299,494	329,124
Inventories		17,947,406	17,947,406	17,776,507
Loans held-for-sale		0	0	0
Loans held-for-investment, net		0	0	0
Investments held-to-maturity		0	0	0
Investments available-for-sale		0	0	0
Investments in unconsolidated entities		973,044	973,044	1,009,035
Goodwill		3,442,359	3,442,359	3,442,359
Other assets		1,080,186	1,080,186	1,021,684
Assets		25,150,740	25,150,740	24,789,239
Senior notes and other debts payable		7,495,674	7,495,674	7,776,638
Other liabilities		3,278,602	3,278,602	3,230,400
Total liabilities		10,774,276	10,774,276	11,007,038
Mortgage loan commitments | Financial Services
Segment Reporting Information [Line Items]
Other asset		45,000	45,000	16,300
Forward contracts | Financial Services
Segment Reporting Information [Line Items]
Other asset		4,700	4,700	3,900
Level 3 | Lennar Other
Segment Reporting Information [Line Items]
Investments available-for-sale		53,585	53,585	0
Level 3 | Fair Value, Measurements, Recurring | Financial Services
Segment Reporting Information [Line Items]
Mortgage servicing rights		$ 1,238	$ 1,238	$ 24,679

[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, or any of its subsidiaries, has any obligations. As of May 31, 2020, total assets include $873.0 million related to consolidated VIEs of which $9.1 million is included in Homebuilding cash and cash equivalents, $0.2 million in Homebuilding receivables, net, $110.6 million in Homebuilding finished homes and construction in progress, $308.4 million in Homebuilding land and land under development, $391.6 million in Homebuilding consolidated inventory not owned, $2.0 million in Homebuilding investments in unconsolidated entities, $8.0 million in Homebuilding other assets and $43.3 million in Multifamily assets. As of November 30, 2019, total assets include $980.2 million related to consolidated VIEs of which $15.5 million is included in Homebuilding cash and cash equivalents, $0.2 million in Homebuilding receivables, net, $97.5 million in Homebuilding finished homes and construction in progress, $283.2 million in Homebuilding land and land under development, $301.0 million in Homebuilding consolidated inventory not owned, $2.5 million in Homebuilding investments in unconsolidated entities, $10.0 million in Homebuilding other assets, $221.2 million in Financial Services assets and $49.1 million in Multifamily assets.

[2] Under certain provisions of ASC 810, the Company is required to separately disclose on its condensed consolidated balance sheets the assets owned by consolidated VIEs and liabilities of consolidated VIEs as to which neither Lennar Corporation, or any of its subsidiaries, has any obligations. As of May 31, 2020, total liabilities include $450.4 million related to consolidated VIEs as to which there was no recourse against the Company, of which $20.9 million is included in Homebuilding accounts payable, $335.5 million in Homebuilding liabilities related to consolidated inventory not owned, $74.5 million in Homebuilding senior notes and other debts payable, $8.6 million in Homebuilding other liabilities and $11.0 million in Multifamily liabilities. As of November 30, 2019, total liabilities include $549.7 million related to consolidated VIEs as to which there was no recourse against the Company, of which $13.7 million is included in Homebuilding accounts payable, $247.5 million in Homebuilding liabilities related to consolidated inventory not owned, $47.1 million in Homebuilding senior notes and other debt payable, $8.9 million in Homebuilding other liabilities, $231.1 million in Financial Services liabilities and $1.4 million in Multifamily liabilities.