Quarterly report pursuant to Section 13 or 15(d)

Securities (Details 2)

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Securities (Details 2) (USD $)
In Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2011
Sep. 30, 2010
Sep. 30, 2011
Sep. 30, 2010
Corporation recorded other-than-temporary impairment losses on AFS debt securities        
Total OTTI losses $ (114) $ (156) $ (271) $ (1,616)
OTTI losses recognized in accumulated OCI 29 33 53 766
Net impairment losses recognized in earnings (85) (123) (218) (850)
Non-agency residential [Member]
        
Corporation recorded other-than-temporary impairment losses on AFS debt securities        
Total OTTI losses 114 154 269 925
OTTI losses recognized in accumulated OCI (29) (33) (53) (460)
Net impairment losses recognized in earnings 85 121 216 465
Non-agency commercial [Member]
        
Corporation recorded other-than-temporary impairment losses on AFS debt securities        
Total OTTI losses 0 0 0 1
OTTI losses recognized in accumulated OCI 0 0 0 0
Net impairment losses recognized in earnings 0 0 0 1
Non-U.S. securities [Member]
        
Corporation recorded other-than-temporary impairment losses on AFS debt securities        
Total OTTI losses 0 2 0 213
OTTI losses recognized in accumulated OCI 0 0 0 (16)
Net impairment losses recognized in earnings 0 2 0 197
Corporate/Agency bonds [Member]
        
Corporation recorded other-than-temporary impairment losses on AFS debt securities        
Total OTTI losses 0 0 0 2
OTTI losses recognized in accumulated OCI 0 0 0 0
Net impairment losses recognized in earnings 0 0 0 2
Other Taxable Securities, Debt [Member]
        
Corporation recorded other-than-temporary impairment losses on AFS debt securities        
Total OTTI losses 0 0 2 475
OTTI losses recognized in accumulated OCI 0 0 0 (290)
Net impairment losses recognized in earnings $ 0 $ 0 $ 2 $ 185