XML 107 R49.htm IDEA: XBRL DOCUMENT v3.2.0.727
Securitizations and Variable Interest Entities - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Servicing Assets at Fair Value [Line Items]          
Average period to securitization     30 days    
Percentage of loan transferred through securitization 60 days or more past due     5.90%   5.10%
Charge-offs, net of recoveries associated with transferred loans $ 0   $ 0    
Mortgage Servicing Rights - Amortized Costs [Member]          
Servicing Assets at Fair Value [Line Items]          
Acquisitions 9,800,000 $ 9,800,000 18,300,000 $ 21,400,000  
HMBS - Related Borrowings [Member]          
Servicing Assets at Fair Value [Line Items]          
Secured borrowings 2,000,000,000   2,000,000,000   $ 1,400,000,000
Lending [Member] | HECM [Member]          
Servicing Assets at Fair Value [Line Items]          
Loans pledged as collateral $ 2,100,000,000   $ 2,100,000,000   $ 1,600,000,000