v2.4.0.6
Fair Value, Assets and Liabilities Recorded at Fair Value on a Recurring Basis (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Assets:    
Mortgages held for sale $ 39,183 $ 44,791
Loans held for sale 796 1,176
Loans 6,037 5,916
MSRs (carried at fair value) 13,578 12,603
Fair Value Asset derivatives, net 24,476 27,553
Liabilities:    
Fair Value Liability derivatives, net (13,902) (15,468)
Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 54,405 55,837
Total trading assets (excluding derivatives) 56,608 57,867
Securities available for sale 230,266 222,613
Mortgages held for sale 39,183 44,791
Loans held for sale 796 1,176
Loans 6,037 5,916
MSRs (carried at fair value) 13,578 12,603
Fair Value Asset derivatives, netting (73,643) (81,143)
Fair Value Asset derivatives, net 24,476 27,553
Other Assets, Excluding Derivatives 463 467
Total assets recorded at fair value 371,407 372,986
Liabilities:    
Netting, Derivative Liabilities 81,198 89,990
Fair Value Liability derivatives, net (13,902) (15,468)
Total short sale liabilities (10,521) (10,832)
Other Liabilities, Excluding Derivatives and Short Sale Liabilities (82) (142)
Total liabilities recorded at fair value (24,505) (26,442)
Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 81,544 92,077
Liabilities:    
Total derivative liabilities (78,729) (88,614)
Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 4,728 4,351
Liabilities:    
Total derivative liabilities (4,587) (4,234)
Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 4,081 3,768
Liabilities:    
Total derivative liabilities (4,147) (3,661)
Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 4,855 4,924
Liabilities:    
Total derivative liabilities (2,998) (3,378)
Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 2,910 3,576
Liabilities:    
Total derivative liabilities (4,572) (5,454)
Fair Value, Measurements, Recurring [Member] | Other Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 1 0
Liabilities:    
Total derivative liabilities (67) (117)
Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 227,113 219,196
Other Trading Assets [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading assets (excluding derivatives) 2,203 2,030
US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 8,806 6,980
Securities available for sale 4,678 6,968
Liabilities:    
Total short sale liabilities (4,730) (4,739)
US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 4,166 2,491
Securities available for sale 34,237 32,593
Liabilities:    
Total short sale liabilities (16) (2)
Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 27,933 35,067
Securities available for sale 139,151 132,740
Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 102,665 96,754
Residential [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 17,829 17,836
Commercial [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 18,657 18,150
Collateralized debt obligations [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 1,539 1,582
Securities available for sale 9,163 8,599
Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 7,664 6,576
Securities available for sale 20,173 18,404
Liabilities:    
Total short sale liabilities (4,445) (4,112)
Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 1,020 1,283
Securities available for sale 18,736 18,848
Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 6,975 6,727
Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 955 932
Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 10,806 11,189
Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 975 1,044
Other Securities Sold Not Yet Purchased [Member] | Fair Value, Measurements, Recurring [Member]
   
Liabilities:    
Total short sale liabilities (58) (737)
Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 3,277 1,858
Securities available for sale 3,153 3,417
Liabilities:    
Total short sale liabilities (1,272) (1,242)
Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 2,405 2,527
Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 748 890
Level 1 [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 8,159 5,024
Total trading assets (excluding derivatives) 10,211 6,871
Securities available for sale 2,678 2,552
Mortgages held for sale 0 0
Loans held for sale 0 0
Loans 0 0
MSRs (carried at fair value) 0 0
Fair Value Asset derivatives, netting 0 0
Fair Value Asset derivatives, net 656 506
Other Assets, Excluding Derivatives 94 88
Total assets recorded at fair value 13,639 10,017
Liabilities:    
Netting, Derivative Liabilities 0 0
Fair Value Liability derivatives, net (298) (264)
Total short sale liabilities (5,131) (4,764)
Other Liabilities, Excluding Derivatives and Short Sale Liabilities 0 0
Total liabilities recorded at fair value (5,429) (5,028)
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities (3) (4)
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 624 471
Liabilities:    
Total derivative liabilities (267) (229)
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 32 35
Liabilities:    
Total derivative liabilities (28) (31)
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Level 1 [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Level 1 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 1,378 1,186
Level 1 [Member] | Other Trading Assets [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading assets (excluding derivatives) 2,052 1,847
Level 1 [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 5,208 3,342
Securities available for sale 1,081 869
Liabilities:    
Total short sale liabilities (3,958) (3,820)
Level 1 [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Liabilities:    
Total short sale liabilities 0 0
Level 1 [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Level 1 [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Collateralized debt obligations [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Level 1 [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 297 317
Liabilities:    
Total short sale liabilities 0 0
Level 1 [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Level 1 [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 1 [Member] | Other Securities Sold Not Yet Purchased [Member] | Fair Value, Measurements, Recurring [Member]
   
Liabilities:    
Total short sale liabilities 0 0
Level 1 [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 2,951 1,682
Securities available for sale 1,300 1,366
Liabilities:    
Total short sale liabilities (1,173) (944)
Level 1 [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 607 552
Level 1 [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 693 814
Level 2 [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 44,251 48,779
Total trading assets (excluding derivatives) 44,294 48,847
Securities available for sale 194,098 188,205
Mortgages held for sale 35,853 41,381
Loans held for sale 796 1,176
Loans 6,012 5,893
MSRs (carried at fair value) 0 0
Fair Value Asset derivatives, netting 0 0
Fair Value Asset derivatives, net 94,667 105,202
Other Assets, Excluding Derivatives 141 135
Total assets recorded at fair value 375,861 390,839
Liabilities:    
Netting, Derivative Liabilities 0 0
Fair Value Liability derivatives, net (90,344) (100,618)
Total short sale liabilities (5,390) (6,068)
Other Liabilities, Excluding Derivatives and Short Sale Liabilities (40) (98)
Total liabilities recorded at fair value (95,774) (106,784)
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 80,738 91,022
Liabilities:    
Total derivative liabilities (78,255) (88,164)
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 4,712 4,351
Liabilities:    
Total derivative liabilities (4,557) (4,234)
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 2,721 2,737
Liabilities:    
Total derivative liabilities (2,964) (2,797)
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 4,799 4,873
Liabilities:    
Total derivative liabilities (2,962) (3,324)
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 1,697 2,219
Liabilities:    
Total derivative liabilities (1,606) (2,099)
Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Level 2 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 193,421 187,521
Level 2 [Member] | Other Trading Assets [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading assets (excluding derivatives) 43 68
Level 2 [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 3,598 3,638
Securities available for sale 3,597 6,099
Liabilities:    
Total short sale liabilities (772) (919)
Level 2 [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 4,063 2,438
Securities available for sale 21,723 21,077
Liabilities:    
Total short sale liabilities (16) (2)
Level 2 [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 27,879 34,959
Securities available for sale 138,861 132,447
Level 2 [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 102,665 96,754
Level 2 [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 17,771 17,775
Level 2 [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 18,425 17,918
Level 2 [Member] | Collateralized debt obligations [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Level 2 [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 7,532 6,479
Securities available for sale 19,568 17,792
Liabilities:    
Total short sale liabilities (4,445) (4,112)
Level 2 [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 856 1,093
Securities available for sale 8,697 9,062
Level 2 [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 62 86
Level 2 [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 698 650
Level 2 [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 7,937 8,326
Level 2 [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 975 1,044
Level 2 [Member] | Other Securities Sold Not Yet Purchased [Member] | Fair Value, Measurements, Recurring [Member]
   
Liabilities:    
Total short sale liabilities (58) (737)
Level 2 [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 323 172
Securities available for sale 677 684
Liabilities:    
Total short sale liabilities (99) (298)
Level 2 [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 625 631
Level 2 [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 52 53
Level 3 [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 1,995 2,034
Total trading assets (excluding derivatives) 2,103 2,149
Securities available for sale 33,490 31,856
Mortgages held for sale 3,330 3,410
Loans held for sale 0 0
Loans 25 23
MSRs (carried at fair value) 13,578 12,603
Fair Value Asset derivatives, netting 0 0
Fair Value Asset derivatives, net 2,796 2,988
Other Assets, Excluding Derivatives 228 244
Total assets recorded at fair value 55,550 53,273
Liabilities:    
Netting, Derivative Liabilities 0 0
Fair Value Liability derivatives, net (4,458) (4,576)
Total short sale liabilities 0 0
Other Liabilities, Excluding Derivatives and Short Sale Liabilities (42) (44)
Total liabilities recorded at fair value (4,500) (4,620)
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 806 1,055
Liabilities:    
Total derivative liabilities (471) (446)
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 16 0
Liabilities:    
Total derivative liabilities (30) 0
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 736 560
Liabilities:    
Total derivative liabilities (916) (635)
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 24 16
Liabilities:    
Total derivative liabilities (8) (23)
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 1,213 1,357
Liabilities:    
Total derivative liabilities (2,966) (3,355)
Level 3 [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 1 0
Liabilities:    
Total derivative liabilities (67) (117)
Level 3 [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 32,314 30,489
Level 3 [Member] | Other Trading Assets [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading assets (excluding derivatives) 108 115
Level 3 [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Liabilities:    
Total short sale liabilities 0 0
Level 3 [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 103 53
Securities available for sale 12,514 11,516
Liabilities:    
Total short sale liabilities 0 0
Level 3 [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 54 108
Securities available for sale 290 293
Level 3 [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 3 [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 58 61
Level 3 [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 232 232
Level 3 [Member] | Collateralized debt obligations [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 1,539 1,582
Securities available for sale 9,163 8,599
Level 3 [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 132 97
Securities available for sale 308 295
Liabilities:    
Total short sale liabilities 0 0
Level 3 [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 164 190
Securities available for sale 10,039 9,786
Level 3 [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 6,913 6,641
Level 3 [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 257 282
Level 3 [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 2,869 2,863
Level 3 [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Level 3 [Member] | Other Securities Sold Not Yet Purchased [Member] | Fair Value, Measurements, Recurring [Member]
   
Liabilities:    
Total short sale liabilities 0 0
Level 3 [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 3 4
Securities available for sale 1,176 1,367
Liabilities:    
Total short sale liabilities 0 0
Level 3 [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 1,173 1,344
Level 3 [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 3 23
Netting [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Total trading assets (excluding derivatives) 0 0
Securities available for sale 0 0
Mortgages held for sale 0 0
Loans held for sale 0 0
Loans 0 0
MSRs (carried at fair value) 0 0
Fair Value Asset derivatives, netting (73,643) (81,143)
Fair Value Asset derivatives, net (73,643) (81,143)
Other Assets, Excluding Derivatives 0 0
Total assets recorded at fair value (73,643) (81,143)
Liabilities:    
Netting, Derivative Liabilities 81,198 89,990
Fair Value Liability derivatives, net 81,198 89,990
Total short sale liabilities 0 0
Other Liabilities, Excluding Derivatives and Short Sale Liabilities 0 0
Total liabilities recorded at fair value 81,198 89,990
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Interest Rate Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Commodity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Equity Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Foreign Exchange Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Credit Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Netting [Member] | Fair Value, Measurements, Recurring [Member] | Other Contract [Member]
   
Assets:    
Derivative Asset, Fair Value 0 0
Liabilities:    
Total derivative liabilities 0 0
Netting [Member] | Debt Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Other Trading Assets [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading assets (excluding derivatives) 0 0
Netting [Member] | US Treasury and Government [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Liabilities:    
Total short sale liabilities 0 0
Netting [Member] | US States and Political Subdivisions [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Liabilities:    
Total short sale liabilities 0 0
Netting [Member] | Mortgage Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Netting [Member] | Federal agencies [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Residential [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Commercial [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Collateralized debt obligations [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Netting [Member] | Corporate debt securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Liabilities:    
Total short sale liabilities 0 0
Netting [Member] | Total asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Netting [Member] | Auto loans and leases [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Home Equity Loans [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Other asset-backed securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Other Debt Securities, Excluding Asset Backed Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Other Securities Sold Not Yet Purchased [Member] | Fair Value, Measurements, Recurring [Member]
   
Liabilities:    
Total short sale liabilities 0 0
Netting [Member] | Equity Securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Total trading securities 0 0
Securities available for sale 0 0
Liabilities:    
Total short sale liabilities 0 0
Netting [Member] | Perpetual preferred securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale 0 0
Netting [Member] | Other equity securities [Member] | Fair Value, Measurements, Recurring [Member]
   
Assets:    
Securities available for sale $ 0 $ 0