v2.4.0.6
Intangible Assets (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Amortized intangible assets:      
Gross carrying value $ 20,620 $ 20,341  
Accumulated amortization (10,262) (8,171)  
Net carrying Value 10,358 12,170  
MSRs (carried at fair value) 12,603 14,467  
Goodwill 25,115 24,770 24,812
Trademark 14 14  
Amortized MSRs [Member]
     
Amortized intangible assets:      
Gross carrying value 2,383 2,131  
Accumulated amortization (975) (712)  
Net carrying Value 1,408 1,419  
Core deposit intangibles [Member]
     
Amortized intangible assets:      
Gross carrying value 15,079 15,133  
Accumulated amortization (7,768) (6,229)  
Net carrying Value 7,311 8,904  
Customer Relationships And Other [Member]
     
Amortized intangible assets:      
Gross carrying value 3,158 3,077  
Accumulated amortization (1,519) (1,230)  
Net carrying Value $ 1,639 $ 1,847