Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights (Details 2)

v2.3.0.15
Mortgage Servicing Rights (Details 2) (USD $)
In Millions
3 Months Ended
Sep. 30, 2011
Fixed Rate Residential Mortgage [Member]
 
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]  
Change in Weighted average lives, Impact Of 20% in years P0.62Y
Fixed Rate Residential Mortgage [Member] | Decrease [Member]
 
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]  
Change in Weighted average lives, Impact Of 10% in years P0.29Y
Fixed Rate Residential Mortgage [Member] | Increase [Member]
 
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]  
Change in Weighted average lives, Impact Of 10% in years P(0.25)Y
Change in Weighted average lives, Impact Of 20% in years P(0.47)Y
Adjustable Rate Residential Mortgage [Member]
 
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]  
Change in Weighted average lives, Impact Of 20% in years P0.32Y
Adjustable Rate Residential Mortgage [Member] | Decrease [Member]
 
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]  
Change in Weighted average lives, Impact Of 10% in years P0.15Y
Adjustable Rate Residential Mortgage [Member] | Increase [Member]
 
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]  
Change in Weighted average lives, Impact Of 10% in years P(0.13)Y
Change in Weighted average lives, Impact Of 20% in years P(0.24)Y
Decrease [Member]
 
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]  
Change in Fair Value, Impact of 10% 660
Change in Fair Value, Impact of 20% 1,418
Change in Fair Value, Impact of 100 bps 392
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of Impact Of 200 Bps Adverse Change In Option Adjusted Spread 817
Increase [Member]
 
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]  
Change in Fair Value, Impact of 10% (580)
Change in Fair Value, Impact of 20% (1,094)
Change in Fair Value, Impact of 100 bps (362)
Sensitivity Analysis Of Fair Value Of Interests Continued To Be Held By Transferor Servicing Assets Or Liabilities Impact Of Impact Of 200 Bps Adverse Change In Option Adjusted Spread (697)