Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights - Sensitivity Impacts (Details)

v2.4.0.8
Mortgage Servicing Rights - Sensitivity Impacts (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2014
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 increase $ 244
Prepayment rates, impact of 20 percent increase 515
Prepayment rates, impact of 10 percent decrease (220)
Prepayment rates, impact of 20 percent decrease (420)
OAS level, impact of 100 bps decrease 202
OAS level, impact of 200 bps decrease 423
OAS level, impact of 100 bps increase (186)
OAS level, impact of 200 bps increase $ (358)
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 26 days
Impact of 20 percent decrease 6 months
Impact of 10 percent increase 2 months 15 days
Impact of 20 percent increase 4 months 24 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 8 days
Impact of 20 percent decrease 4 months 24 days
Impact of 10 percent increase 1 month 27 days
Impact of 20 percent increase 3 months 21 days