v3.26.3
Commitments and Contingencies (Details)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
housing_unit
Dec. 31, 2025
USD ($)
Loss Contingencies [Line Items]    
Number of housing units | housing_unit 5  
Funded loans unpaid principal $ 51,500  
Letters of credit outstanding 395  
Accrued loan loss 95 $ 79
Assets available for recourse 969  
Guarantees total 307  
Recognized revenue included in contract liability (282)  
Deferred and contingent consideration 107 130
Indirect tax liabilities primarily related to sales and use tax 114 90
Commitments to investment in future real estate investment $ 172  
Commitments to investment in future real estate investment (as a percent) 0.50  
Commitment to investment in consolidated projects $ 16  
Commitments to investment in unconsolidated real estate subsidiary 68  
Accounts payable, accrued expenses and long-term deferred and contingent consideration    
Loss Contingencies [Line Items]    
Recognized revenue included in contract liability 122 149
Performance guarantee    
Loss Contingencies [Line Items]    
Loss contingency, estimate of possible loss 1,000 1,000
Warehouse receivable    
Loss Contingencies [Line Items]    
Warehouse receivables 358  
Funded loan subject to loss sharing arrangements    
Loss Contingencies [Line Items]    
Funded loans unpaid principal 49,000  
Letters of credit outstanding 185 165
SBL program    
Loss Contingencies [Line Items]    
Letters of credit outstanding $ 5 $ 5
Percentage of maximum original principal amount loan loss 10.00%  
Funded loan not subject to loss sharing arrangements    
Loss Contingencies [Line Items]    
Letters of credit outstanding $ 190