v3.26.1
Acquisitions - Schedule of Costs Incurred in Connection with Merger (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Business Combination [Line Items]          
Stock-based compensation expense $ 38 $ 55 $ 85   $ 86
Total Anywhere merger transaction and integration expenses 34 $ 0 217   $ 0
Anywhere Real Estate Inc          
Business Combination [Line Items]          
Legal, investment banking and other transaction-related expenses 3   43    
Severance-related personnel costs 13   75    
Stock-based compensation expense 3   64    
Integration-related costs 15   35    
Total Anywhere merger transaction and integration expenses 34   217 $ 18  
Accrued severance cost, liability $ 33   33    
Severance-related personnel costs     $ 7