Quarterly report pursuant to Section 13 or 15(d)

Mortgage Servicing Rights (Details 2)

 v2.3.0.11
Mortgage Servicing Rights (Details 2) (USD $)
In Millions
Jun. 30, 2011
Fixed [Member] | Increase [Member]
 
Sensitivity of the weighted-average lives and fair value of MSRs  
Change in Weighted average lives, Impact Of 10% in years -P0.27Y
Change in Weighted average lives, Impact Of 20% in years -P0.52Y
Fixed [Member] | Decrease [Member]
 
Sensitivity of the weighted-average lives and fair value of MSRs  
Change in Weighted average lives, Impact Of 10% in years P0.30Y
Change in Weighted average lives, Impact Of 20% in years P0.65Y
Adjustable [Member] | Increase [Member]
 
Sensitivity of the weighted-average lives and fair value of MSRs  
Change in Weighted average lives, Impact Of 10% in years -P0.15Y
Change in Weighted average lives, Impact Of 20% in years -P0.28Y
Adjustable [Member] | Decrease [Member]
 
Sensitivity of the weighted-average lives and fair value of MSRs  
Change in Weighted average lives, Impact Of 10% in years P0.17Y
Change in Weighted average lives, Impact Of 20% in years P0.37Y
Increase [Member]
 
Sensitivity of the weighted-average lives and fair value of MSRs  
Change in Fair Value, Impact of 10% (719)
Change in Fair Value, Impact of 20% (1,370)
Change in Fair Value, Impact of 100 bps (677)
Change in Fair Value, Impact of 200 bps (1,298)
Decrease [Member]
 
Sensitivity of the weighted-average lives and fair value of MSRs  
Change in Fair Value, Impact of 10% 800
Change in Fair Value, Impact of 20% 1,696
Change in Fair Value, Impact of 100 bps 740
Change in Fair Value, Impact of 200 bps 1,551