Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights - Sensitivity Impacts (Details)

v3.2.0.727
Mortgage Servicing Rights - Sensitivity Impacts (Details) - Jun. 30, 2015 - USD ($)
$ in Millions
Total
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]  
Prepayment rates, impact of 10 percent decrease $ 200
Prepayment rates, impact of 20 percent decrease 424
Prepayment rates, impact of 10 percent increase (181)
Prepayment rates, impact of 20 percent increase (344)
OAS level, impact of 100 bps decrease 156
OAS level, impact of 200 bps decrease 327
OAS level, impact of 100 bps increase (144)
OAS level, impact of 200 bps increase $ (278)
Fixed  
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]  
Impact of 10 percent decrease 2 months 23 days
Impact of 20 percent decrease 5 months 26 days
Impact of 10 percent increase 2 months 15 days
Impact of 20 percent increase 4 months 20 days
Adjustable  
Sensitivity Analysis of Fair Value of Interests Continued to be Held by Transferor, Servicing Assets or Liabilities, Impact of Adverse Change in Assumption [Line Items]  
Impact of 10 percent decrease 2 months 12 days
Impact of 20 percent decrease 5 months 4 days
Impact of 10 percent increase 2 months 4 days
Impact of 20 percent increase 3 months 29 days