XML 111 R97.htm IDEA: XBRL DOCUMENT v2.4.0.8
Fair Value of Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) (USD $)
In Millions, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Securities available for sale    
Securities available for sale $ 43,132 $ 63,979
Other assets    
Mortgage servicing rights 83 55
Derivative assets 988 1,848
Retained interests in securitizations and other 201 204
Total assets 44,404 66,086
Other liabilities:    
Derivative liabilities 587 400
Total liabilities 587 400
U.S. Treasury Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 837 1,552
U.S. Agency Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 1 302
Corporate Debt Securities Guaranteed by U.S. Government Agencies [Member]
   
Securities available for sale    
Securities available for sale 1,272 1,012
Residential Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 25,684 43,873
Commercial Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 5,758 7,629
Other Asset-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 7,656 8,458
Other Securities [Member]
   
Securities available for sale    
Securities available for sale 1,924 1,153
Level 1 [Member]
   
Securities available for sale    
Securities available for sale 971 1,697
Other assets    
Mortgage servicing rights 0 0
Derivative assets 5 1
Retained interests in securitizations and other 0 0
Total assets 976 1,698
Other liabilities:    
Derivative liabilities 8 1
Total liabilities 8 1
Level 1 [Member] | U.S. Treasury Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 837 1,552
Level 1 [Member] | U.S. Agency Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 1 [Member] | Corporate Debt Securities Guaranteed by U.S. Government Agencies [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 1 [Member] | Residential Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 1 [Member] | Commercial Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 1 [Member] | Other Asset-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 1 [Member] | Other Securities [Member]
   
Securities available for sale    
Securities available for sale 134 145
Level 2 [Member]
   
Securities available for sale    
Securities available for sale 39,259 59,593
Other assets    
Mortgage servicing rights 25 0
Derivative assets 929 1,757
Retained interests in securitizations and other 0 0
Total assets 40,213 61,350
Other liabilities:    
Derivative liabilities 540 361
Total liabilities 540 361
Level 2 [Member] | U.S. Treasury Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 2 [Member] | U.S. Agency Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 1 302
Level 2 [Member] | Corporate Debt Securities Guaranteed by U.S. Government Agencies [Member]
   
Securities available for sale    
Securities available for sale 346 362
Level 2 [Member] | Residential Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 24,363 42,538
Level 2 [Member] | Commercial Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 5,454 7,042
Level 2 [Member] | Other Asset-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 7,343 8,356
Level 2 [Member] | Other Securities [Member]
   
Securities available for sale    
Securities available for sale 1,752 993
Level 3 [Member]
   
Securities available for sale    
Securities available for sale 2,902 2,689
Other assets    
Mortgage servicing rights 58 55
Derivative assets 54 90
Retained interests in securitizations and other 201 204
Total assets 3,215 3,038
Other liabilities:    
Derivative liabilities 39 38
Total liabilities 39 38
Level 3 [Member] | U.S. Treasury Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 3 [Member] | U.S. Agency Debt Obligations [Member]
   
Securities available for sale    
Securities available for sale 0 0
Level 3 [Member] | Corporate Debt Securities Guaranteed by U.S. Government Agencies [Member]
   
Securities available for sale    
Securities available for sale 926 650
Level 3 [Member] | Residential Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 1,321 1,335
Level 3 [Member] | Commercial Mortgage-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 304 587
Level 3 [Member] | Other Asset-Backed Securities [Member]
   
Securities available for sale    
Securities available for sale 313 102
Level 3 [Member] | Other Securities [Member]
   
Securities available for sale    
Securities available for sale $ 38 $ 15