Homebuilding Senior Notes and Other Debts Payable (Narrative) (Details) - Homebuilding - USD ($)		Feb. 28, 2022	Nov. 30, 2021
Debt Instrument [Line Items]
Senior notes and other debts payable, net	[1]	$ 4,639,222,000	$ 4,652,338,000
Unsecured revolving credit facility | Credit Agreement
Debt Instrument [Line Items]
Maximum borrowings		2,500,000,000
Accordion feature		300,000,000
Maximum borrowing capacity after accordion feature		2,800,000,000
Letter of Credit | Credit Agreement
Debt Instrument [Line Items]
Maximum borrowings		500,000,000
Senior Notes
Debt Instrument [Line Items]
Debt issuance cost		$ 10,100,000	$ 11,000,000

[1] As of February 28, 2022, total liabilities include $236.4 million related to consolidated VIEs as to which there was no recourse against the Company, of which $23.8 million is included in Homebuilding accounts payable, $182.7 million in Homebuilding liabilities related to consolidated inventory not owned, $18.4 million in Homebuilding senior notes and other debts payable, $7.8 million in Homebuilding other liabilities and $3.8 million in Multifamily liabilities.As of November 30, 2021, total liabilities include $258.5 million related to consolidated VIEs as to which there was no recourse against the Company, of which $26.6 million is included in Homebuilding accounts payable, $196.6 million in Homebuilding liabilities related to consolidated inventory not owned, $20.1 million in Homebuilding senior notes and other debt payable, $12.3 million in Homebuilding other liabilities and $2.8 million in Multifamily liabilities.