v3.26.3
Homebuilding Senior Notes and Other Debts Payable (Narrative) (Details) - USD ($)
9 Months Ended
Aug. 31, 2026
Aug. 31, 2025
Jun. 26, 2026
Nov. 30, 2025
Debt Instrument [Line Items]        
Redemption of senior notes $ 400,000,000 $ 500,000,000    
Proceeds from issuance of senior notes 0 $ 700,000,000    
Unsecured revolving credit facility | Delayed Draw Term Loan Facility        
Debt Instrument [Line Items]        
Maximum borrowings 1,700,000,000      
Line of Credit Facility, Accordion Feature 400,000,000      
Homebuilding | Letter of Credit        
Debt Instrument [Line Items]        
Maximum borrowings 477,500,000      
Homebuilding | Unsecured revolving credit facility        
Debt Instrument [Line Items]        
Maximum borrowings 3,125,000,000      
Homebuilding | Unsecured revolving credit facility | Commitments - maturing in November 2029        
Debt Instrument [Line Items]        
Maximum borrowings 2,900,000,000      
Homebuilding | Senior Notes        
Debt Instrument [Line Items]        
Debt issuance cost $ 10,100,000     $ 7,000,000.0
Homebuilding | Senior Notes | 5.20% senior notes due 2030        
Debt Instrument [Line Items]        
Interest rate (percent) 5.20%      
Homebuilding | Senior Notes | 5.25% senior notes due 2026        
Debt Instrument [Line Items]        
Interest rate (percent) 5.25%   5.25%