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REAL ESTATE INVENTORY - Schedule of Real Estate Inventory (Details) - USD ($)
$ in Millions
Sep. 30, 2022
Dec. 31, 2021
Inventory Disclosure [Abstract]    
Work in progress $ 642 $ 1,971
Finished goods:    
Listed for sale 4,209 2,325
Under contract for sale 1,242 1,800
Total real estate inventory $ 6,093 $ 6,096