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Note 31 SUBSEQUENT EVENTS (Detail) (USD $)
Feb. 15, 2013
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Impaired Financing Receivable, Unpaid Principal Balance $ 107,300,000,000      
Servicing Asset 42,100,000,000      
Loans and Leases Receivable, Gross, Consumer, Mortgage 1,500,000,000      
Business Acquisition, Cost of Acquired Entity, Purchase Price   (765,724,000) (2,670,491,000) (1,165,673,000)
Servicing Assets Unpaid Loan Balance   200,000,000    
Business Acquisition, Cost of Acquired Entity, Cash Paid 840,000,000 22,000,000    
Residential Capital, LLC [Member]
        
Business Acquisition, Cost of Acquired Entity, Purchase Price 2,100,000,000      
Subservicing Contracts [Member]
        
Servicing Asset 25,900,000,000      
Mortgage Servicing Rights [Member]
        
Servicing Assets Unpaid Loan Balance 9,000,000,000      
New Senior Secured Term Loan [Member]
        
Secured Long-term Debt, Noncurrent 1,300,000,000      
Three Servicing Advance Facilities [Member]
        
Line of Credit Facility, Amount Outstanding $ 1,250,000,000