Fair Value Measurements (Tables)

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Fair Value Measurements (Tables)	9 Months Ended
	Sep. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value Assets and liabilities measured on Recurring basis	Assets and liabilities carried at fair value on a recurring basis at September 30, 2013 and December 31, 2012, including financial instruments which the Corporation accounts for under the fair value option, are summarized in the following tables.   September 30, 2013   Fair Value Measurements         (Dollars in millions) Level 1 (1)   Level 2 (1)   Level 3   Netting Adjustments (2)   Assets/Liabilities at Fair Value Assets                   Federal funds sold and securities borrowed or purchased under agreements to resell $ —   $ 102,899   $ —   $ —   $ 102,899 Trading account assets:                   U.S. government and agency securities 46,478   12,772   —   —   59,250 Corporate securities, trading loans and other 974   29,513   3,780   —   34,267 Equity securities 31,911   16,051   338   —   48,300 Non-U.S. sovereign debt 32,134   11,603   388   —   44,125 Mortgage trading loans and ABS —   10,744   4,520   —   15,264 Total trading account assets 111,497   80,683   9,026   —   201,206 Derivative assets (3) 4,329   977,921   7,527   (936,616 )   53,161 AFS debt securities:                   U.S. Treasury securities and agency securities 514   2,457   —   —   2,971 Mortgage-backed securities:                   Agency —   169,025   —   —   169,025 Agency-collateralized mortgage obligations —   27,335   —   —   27,335 Non-agency residential —   6,929   —   —   6,929 Commercial —   2,827   —   —   2,827 Non-U.S. securities 2,467   3,668   105   —   6,240 Corporate/Agency bonds —   1,162   8   —   1,170 Other taxable securities 20   9,132   4,013   —   13,165 Tax-exempt securities —   4,417   817   —   5,234 Total AFS debt securities 3,001   226,952   4,943   —   234,896 Other debt securities carried at fair value:                   Mortgage-backed securities:                   Agency —   18,626   —   —   18,626 Agency-collateralized mortgage obligations —   563   —   —   563 Commercial —   758   —   —   758 Non-U.S. securities 9,740   1,766   —   —   11,506 Total other debt securities carried at fair value 9,740   21,713   —   —   31,453 Loans and leases —   7,180   3,016   —   10,196 Mortgage servicing rights —   —   5,058   —   5,058 Loans held-for-sale —   7,304   913   —   8,217 Other assets 14,009   2,317   1,878   —   18,204 Total assets $ 142,576   $ 1,426,969   $ 32,361   $ (936,616 )   $ 665,290 Liabilities                   Interest-bearing deposits in U.S. offices $ —   $ 1,916   $ —   $ —   $ 1,916 Federal funds purchased and securities loaned or sold under agreements to repurchase —   61,917   —   —   61,917 Trading account liabilities:                   U.S. government and agency securities 24,046   349   —   —   24,395 Equity securities 23,256   3,604   —   —   26,860 Non-U.S. sovereign debt 22,119   1,502   —   —   23,621 Corporate securities and other 529   7,259   49   —   7,837 Total trading account liabilities 69,950   12,714   49   —   82,713 Derivative liabilities (3) 5,167   962,675   6,759   (930,033 )   44,568 Short-term borrowings —   2,844   —   —   2,844 Accrued expenses and other liabilities 8,627   964   31   —   9,622 Long-term debt —   45,338   2,063   —   47,401 Total liabilities $ 83,744   $ 1,088,368   $ 8,902   $ (930,033 )   $ 250,981 (1)  During the nine months ended September 30, 2013, $500 million of other assets were transferred from Level 1 to Level 2 primarily due to a restriction that became effective for a private equity investment. (2)  Amounts represent the impact of legally enforceable master netting agreements and also cash collateral held or placed with the same counterparties. (3)  For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives.   December 31, 2012   Fair Value Measurements         (Dollars in millions) Level 1 (1)   Level 2 (1)   Level 3   Netting Adjustments (2)   Assets/Liabilities at Fair Value Assets                   Federal funds sold and securities borrowed or purchased under agreements to resell $ —   $ 98,670   $ —   $ —   $ 98,670 Trading account assets:                   U.S. government and agency securities 57,655   29,319   —   —   86,974 Corporate securities, trading loans and other 1,292   32,882   3,726   —   37,900 Equity securities 28,144   14,626   545   —   43,315 Non-U.S. sovereign debt 29,254   13,139   353   —   42,746 Mortgage trading loans and ABS —   11,905   4,935   —   16,840 Total trading account assets 116,345   101,871   9,559   —   227,775 Derivative assets (3) 2,997   1,372,398   8,073   (1,329,971 )   53,497 AFS debt securities:                   U.S. Treasury securities and agency securities 21,514   2,958   —   —   24,472 Mortgage-backed securities:                   Agency —   188,149   —   —   188,149 Agency-collateralized mortgage obligations —   37,538   —   —   37,538 Non-agency residential —   9,494   —   —   9,494 Non-agency commercial —   3,914   10   —   3,924 Non-U.S. securities 2,637   2,981   —   —   5,618 Corporate/Agency bonds —   1,358   92   —   1,450 Other taxable securities 20   8,180   3,928   —   12,128 Tax-exempt securities —   3,072   1,061   —   4,133 Total AFS debt securities 24,171   257,644   5,091   —   286,906 Other debt securities carried at fair value:                   U.S. Treasury securities and agency securities 491   —   —   —   491 Mortgage-backed securities:                   Agency —   13,073   —   —   13,073 Agency-collateralized mortgage obligations —   929   —   —   929 Non-U.S. securities 9,151   300   —   —   9,451 Total other debt securities carried at fair value 9,642   14,302   —   —   23,944 Loans and leases —   6,715   2,287   —   9,002 Mortgage servicing rights —   —   5,716   —   5,716 Loans held-for-sale —   8,926   2,733   —   11,659 Other assets 18,535   4,826   3,129   —   26,490 Total assets $ 171,690   $ 1,865,352   $ 36,588   $ (1,329,971 )   $ 743,659 Liabilities                   Interest-bearing deposits in U.S. offices $ —   $ 2,262   $ —   $ —   $ 2,262 Federal funds purchased and securities loaned or sold under agreements to repurchase —   42,639   —   —   42,639 Trading account liabilities:                   U.S. government and agency securities 22,351   1,079   —   —   23,430 Equity securities 19,852   2,640   —   —   22,492 Non-U.S. sovereign debt 18,875   1,369   —   —   20,244 Corporate securities and other 487   6,870   64   —   7,421 Total trading account liabilities 61,565   11,958   64   —   73,587 Derivative liabilities (3) 2,859   1,355,309   6,605   (1,318,757 )   46,016 Short-term borrowings —   4,074   —   —   4,074 Accrued expenses and other liabilities 15,457   1,122   15   —   16,594 Long-term debt —   46,860   2,301   —   49,161 Total liabilities $ 79,881   $ 1,464,224   $ 8,985   $ (1,318,757 )   $ 234,333 (1)  During 2012, $2.0 billion and $350 million of assets and liabilities were transferred from Level 1 to Level 2, and $785 million and $40 million of assets and liabilities were transferred from Level 2 to Level 1. Of the asset transfers from Level 1 to Level 2, $940 million was due to a restriction that became effective for a private equity investment during 2012, while $535 million of the transfers from Level 2 to Level 1 was due to the lapse of this restriction during 2012. The remaining transfers were the result of additional information associated with certain equities, derivative contracts and private equity investments. (2)  Amounts represent the impact of legally enforceable master netting agreements and also cash collateral held or placed with the same counterparties. (3)  For further disaggregation of derivative assets and liabilities, see Note 3 – Derivatives.
Level 3 Total Realized and Unrealized Gains (Losses) Included in Earnings	The following tables present a reconciliation of all assets and liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3) during the three and nine months ended September 30, 2013 and 2012, including net realized and unrealized gains (losses) included in earnings and accumulated OCI. Level 3 – Fair Value Measurements (1)   Three Months Ended September 30, 2013         Gross       (Dollars in millions) Balance July 1 2013 Gains (Losses) in Earnings Gains (Losses) in OCI Purchases Sales Issuances Settlements Gross Transfers into Level 3 Gross Transfers out of Level 3 Balance September 30 2013 Trading account assets:                     Corporate securities, trading loans and other $ 2,763 $ 133 $ — $ 2,002 $ (892 ) $ 22 $ (205 ) $ 187 $ (230 ) $ 3,780 Equity securities 464 4 — 20 (16 ) — (100 ) 8 (42 ) 338 Non-U.S. sovereign debt 401 11 — 3 (14 ) — (10 ) — (3 ) 388 Mortgage trading loans and ABS 4,685 (7 ) — 350 (443 ) — (74 ) 13 (4 ) 4,520 Total trading account assets 8,313 141 — 2,375 (1,365 ) 22 (389 ) 208 (279 ) 9,026 Net derivative assets (2) 1,173 (499 ) — 126 (102 ) — (147 ) 116 101 768 AFS debt securities:                     Non-U.S. securities — 5 — — — — — 100 — 105 Corporate/Agency bonds 8 — — — — — — — — 8 Other taxable securities 4,157 2 (2 ) 215 — — (359 ) — — 4,013 Tax-exempt securities 877 2 1 — — — (63 ) — — 817 Total AFS debt securities 5,042 9 (1 ) 215 — — (422 ) 100 — 4,943 Loans and leases (3, 4) 1,901 (20 ) — — — 1,247 (119 ) 12 (5 ) 3,016 Mortgage servicing rights (4) 5,827 71 — — (729 ) 129 (240 ) — — 5,058 Loans held-for-sale (3) 2,153 40 — — — 3 (1,283 ) — — 913 Other assets (5) 1,700 3 — 1 (35 ) — (30 ) 239 — 1,878 Trading account liabilities – Corporate securities and other (55 ) 1 — 6 (9 ) — — — 8 (49 ) Accrued expenses and other liabilities (3) (230 ) 8 — — — — 189 — 2 (31 ) Long-term debt (3) (1,890 ) (62 ) — 47 — (47 ) 46 (485 ) 328 (2,063 ) (1)  Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3. (2)  Net derivatives include derivative assets of $7.5 billion and derivative liabilities of $6.8 billion. (3)  Amounts represent instruments that are accounted for under the fair value option. (4)  Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales. (5)  Other assets is primarily comprised of private equity investments. Level 3 – Fair Value Measurements (1)   Nine Months Ended September 30, 2013         Gross       (Dollars in millions) Balance January 1 2013 Gains (Losses) in Earnings Gains (Losses) in OCI Purchases Sales Issuances Settlements Gross Transfers into Level 3 Gross Transfers out of Level 3 Balance September 30 2013 Trading account assets:                     Corporate securities, trading loans and other $ 3,726 $ 256 $ — $ 3,519 $ (2,817 ) $ 22 $ (444 ) $ 629 $ (1,111 ) $ 3,780 Equity securities 545 54 — 77 (160 ) — (100 ) 45 (123 ) 338 Non-U.S. sovereign debt 353 56 — 29 (15 ) — (32 ) 1 (4 ) 388 Mortgage trading loans and ABS 4,935 165 — 1,981 (1,777 ) — (775 ) 18 (27 ) 4,520 Total trading account assets 9,559 531 — 5,606 (4,769 ) 22 (1,351 ) 693 (1,265 ) 9,026 Net derivative assets (2) 1,468 186 — 509 (762 ) — (1,190 ) (46 ) 603 768 AFS debt securities:                     Commercial MBS 10 — — — — — (10 ) — — — Non-U.S. securities — 5 — 1 (1 ) — — 100 — 105 Corporate/Agency bonds 92 — 4 — — — — — (88 ) 8 Other taxable securities 3,928 5 10 825 — — (750 ) — (5 ) 4,013 Tax-exempt securities 1,061 3 15 — — — (94 ) — (168 ) 817 Total AFS debt securities 5,091 13 29 826 (1 ) — (854 ) 100 (261 ) 4,943 Loans and leases (3, 4) 2,287 80 — 71 — 1,252 (665 ) 12 (21 ) 3,016 Mortgage servicing rights (4) 5,716 1,531 — — (1,774 ) 399 (814 ) — — 5,058 Loans held-for-sale (3) 2,733 20 — 8 (390 ) 3 (1,492 ) 34 (3 ) 913 Other assets (5) 3,129 (324 ) — 43 (218 ) — (936 ) 239 (55 ) 1,878 Trading account liabilities – Corporate securities and other (64 ) 7 — 24 (40 ) (5 ) — (9 ) 38 (49 ) Accrued expenses and other liabilities (3) (15 ) 30 — — — (751 ) 703 (1 ) 3 (31 ) Long-term debt (3) (2,301 ) 41 — 306 (4 ) (149 ) 172 (1,017 ) 889 (2,063 ) (1)  Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3. (2)  Net derivatives include derivative assets of $7.5 billion and derivative liabilities of $6.8 billion. (3)  Amounts represent instruments that are accounted for under the fair value option. (4)  Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales. (5)  Other assets is primarily comprised of private equity investments. Level 3 – Fair Value Measurements (1)   Three Months Ended September 30, 2012         Gross       (Dollars in millions) Balance July 1 2012 Gains (Losses) in Earnings Gains (Losses) in OCI Purchases Sales Issuances Settlements Gross Transfers into Level 3 Gross Transfers out of Level 3 Balance September 30 2012 Trading account assets:                     Corporate securities, trading loans and other $ 4,459 $ 69 $ — $ 750 $ (848 ) $ — $ (101 ) $ 158 $ (314 ) $ 4,173 Equity securities 597 15 — 43 (12 ) — (9 ) 5 (66 ) 573 Non-U.S. sovereign debt 389 7 — 30 (112 ) — (4 ) — (7 ) 303 Mortgage trading loans and ABS 4,818 111 — 380 (279 ) — (124 ) 3 (3 ) 4,906 Total trading account assets 10,263 202 — 1,203 (1,251 ) — (238 ) 166 (390 ) 9,955 Net derivative assets (2) 4,601 (256 ) — 78 (211 ) — (918 ) (350 ) 16 2,960 AFS debt securities:                     Mortgage-backed securities:                     Non-agency residential 1 — — — — — — — — 1 Non-agency commercial 24 — — — — — (1 ) — — 23 Corporate/Agency bonds 93 — — — — — — — — 93 Other taxable securities 4,558 — 28 600 — — (65 ) — — 5,121 Tax-exempt securities 1,140 7 (7 ) — (63 ) — (16 ) — — 1,061 Total AFS debt securities 5,816 7 21 600 (63 ) — (82 ) — — 6,299 Loans and leases (3, 4) 1,635 69 — 317 (150 ) — (65 ) 450 (3 ) 2,253 Mortgage servicing rights (4) 5,708 (360 ) — — (15 ) 100 (346 ) — — 5,087 Loans held-for-sale (3) 2,741 86 — 596 (19 ) — (104 ) 13 — 3,313 Other assets (5) 3,136 24 — 40 (183 ) — (39 ) — — 2,978 Trading account liabilities – Corporate securities and other (143 ) 4 — 17 (45 ) — — — 2 (165 ) Short-term borrowings (3) — — — — — (232 ) — — — (232 ) Accrued expenses and other liabilities (3) (2 ) — — — — (7 ) — — — (9 ) Long-term debt (3) (2,388 ) (91 ) — 70 — (115 ) 391 (531 ) 374 (2,290 ) (1)  Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3. (2)  Net derivatives include derivative assets of $10.0 billion and derivative liabilities of $7.0 billion. (3)  Amounts represent instruments that are accounted for under the fair value option. (4)  Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales. (5)  Other assets is primarily comprised of net monoline exposure to a single counterparty and private equity investments. Level 3 – Fair Value Measurements (1)   Nine Months Ended September 30, 2012         Gross       (Dollars in millions) Balance January 1 2012 Gains (Losses) in Earnings Gains (Losses) in OCI Purchases Sales Issuances Settlements Gross Transfers into Level 3 Gross Transfers out of Level 3 Balance September 30 2012 Trading account assets:                     Corporate securities, trading loans and other (2) $ 6,880 $ 192 $ — $ 1,995 $ (3,498 ) $ — $ (846 ) $ 315 $ (865 ) $ 4,173 Equity securities 544 24 — 167 (159 ) — 27 38 (68 ) 573 Non-U.S. sovereign debt 342 5 — 338 (359 ) — (4 ) — (19 ) 303 Mortgage trading loans and ABS (2) 3,689 194 — 1,747 (915 ) — (386 ) 745 (168 ) 4,906 Total trading account assets 11,455 415 — 4,247 (4,931 ) — (1,209 ) 1,098 (1,120 ) 9,955 Net derivative assets (3) 5,866 17 — 791 (833 ) — (2,228 ) (283 ) (370 ) 2,960 AFS debt securities:                     Mortgage-backed securities:                     Agency 37 — — — — — (4 ) — (33 ) — Non-agency residential 860 (69 ) 19 — (305 ) — (2 ) — (502 ) 1 Non-agency commercial 40 — — — (11 ) — (6 ) — — 23 Corporate/Agency bonds 162 (2 ) — (2 ) — — (38 ) — (27 ) 93 Other taxable securities 4,265 7 51 1,558 — — (551 ) — (209 ) 5,121 Tax-exempt securities 2,648 61 18 — (132 ) — (1,534 ) — — 1,061 Total AFS debt securities 8,012 (3 ) 88 1,556 (448 ) — (2,135 ) — (771 ) 6,299 Loans and leases (4, 5) 2,744 284 — 317 (1,308 ) — (229 ) 450 (5 ) 2,253 Mortgage servicing rights (5) 7,378 (1,297 ) — — (113 ) 268 (1,149 ) — — 5,087 Loans held-for-sale (4) 3,387 265 — 606 (40 ) — (330 ) 57 (632 ) 3,313 Other assets (6) 4,235 (110 ) — 89 (950 ) — (275 ) — (11 ) 2,978 Trading account liabilities – Corporate securities and other (114 ) 4 — 72 (114 ) — — (65 ) 52 (165 ) Short-term borrowings (4) — — — — — (232 ) — — — (232 ) Accrued expenses and other liabilities (4) (14 ) 4 — 5 — (7 ) — — 3 (9 ) Long-term debt (4) (2,943 ) (239 ) — 188 (33 ) (253 ) 1,099 (1,569 ) 1,460 (2,290 ) (1)  Assets (liabilities). For assets, increase / (decrease) to Level 3 and for liabilities, (increase) / decrease to Level 3. (2)  During the nine months ended September 30, 2012, approximately $900 million was reclassified from Trading account assets - Corporate securities, trading loans and other to Trading account assets - Mortgage trading loans and ABS. In the table above, this reclassification is presented as a sale of Trading account assets - Corporate securities, trading loans and other and a purchase of Trading account assets - Mortgage trading loans and ABS. (3)  Net derivatives include derivative assets of $10.0 billion and derivative liabilities of $7.0 billion. (4)  Amounts represent instruments that are accounted for under the fair value option. (5)  Issuances represent loan originations and mortgage servicing rights retained following securitizations or whole loan sales. (6)  Other assets is primarily comprised of net monoline exposure to a single counterparty and private equity investments.
Level 3 Changes in Unrealized Gains (Losses) Relating to Assets and Liabilities Still Held at Reporting Date	The following tables summarize changes in unrealized gains (losses) recorded in earnings during the three and nine months ended September 30, 2013 and 2012 for Level 3 assets and liabilities that were still held at September 30, 2013 and 2012. These amounts include changes in fair value on loans, LHFS, loan commitments and structured liabilities that are accounted for under the fair value option. Level 3 – Changes in Unrealized Gains (Losses) Relating to Assets and Liabilities Still Held at Reporting Date   Three Months Ended September 30, 2013 (Dollars in millions) Equity Investment Income (Loss)   Trading Account Profits (Losses)   Mortgage Banking Income (Loss) (1)   Other Income (Loss)   Total Trading account assets:                   Corporate securities, trading loans and other $ —   $ (6 )   $ —   $ —   $ (6 ) Equity securities —   4   —   —   4 Non-U.S. sovereign debt —   5   —   —   5 Mortgage trading loans and ABS —   (55 )   —   —   (55 ) Total trading account assets —   (52 )   —   —   (52 ) Net derivative assets —   (754 )   91   —   (663 ) Loans and leases (2) —   —   (35 )   27   (8 ) Mortgage servicing rights —   —   (14 )   —   (14 ) Loans held-for-sale (2) —   —   —   35   35 Other assets 17   —   11   (13 )   15 Long-term debt (2) —   (31 )   —   (31 )   (62 ) Total $ 17   $ (837 )   $ 53   $ 18   $ (749 )                       Three Months Ended September 30, 2012 Trading account assets:                   Corporate securities, trading loans and other $ —   $ 36   $ —   $ —   $ 36 Equity securities —   13   —   —   13 Non-U.S. sovereign debt —   8   —   —   8 Mortgage trading loans and ABS —   89   —   —   89 Total trading account assets —   146   —   —   146 Net derivative assets —   (1,202 )   566   —   (636 ) Loans and leases (2) —   —   —   76   76 Mortgage servicing rights —   —   (552 )   —   (552 ) Loans held-for-sale (2) —   —   15   68   83 Other assets 115   —   (14 )   4   105 Accrued expenses and other liabilities (2) —   —   —   (2 )   (2 ) Long-term debt (2) —   (46 )   —   (46 )   (92 ) Total $ 115   $ (1,102 )   $ 15   $ 100   $ (872 ) (1)  Mortgage banking income does not reflect the impact of Level 1 and Level 2 hedges on MSRs. (2)  Amounts represent instruments that are accounted for under the fair value option. Level 3 – Changes in Unrealized Gains (Losses) Relating to Assets and Liabilities Still Held at Reporting Date   Nine Months Ended September 30, 2013 (Dollars in millions) Equity Investment Income (Loss)   Trading Account Profits (Losses)   Mortgage Banking Income (Loss) (1)   Other Income (Loss)   Total Trading account assets:                   Corporate securities, trading loans and other $ —   $ 48   $ —   $ —   $ 48 Equity securities —   26   —   —   26 Non-U.S. sovereign debt —   70   —   —   70 Mortgage trading loans and ABS —   5   —   —   5 Total trading account assets —   149   —   —   149 Net derivative assets —   (853 )   92   —   (761 ) Loans and leases (2) —   —   (35 )   133   98 Mortgage servicing rights —   —   1,276   —   1,276 Loans held-for-sale (2) —   —   6   25   31 Other assets 23   —   159   (51 )   131 Long-term debt (2) —   6   —   (9 )   (3 ) Total $ 23   $ (698 )   $ 1,498   $ 98   $ 921                       Nine Months Ended September 30, 2012 Trading account assets:                   Corporate securities, trading loans and other $ —   $ 95   $ —   $ —   $ 95 Equity securities —   24   —   —   24 Non-U.S. sovereign debt —   16   —   —   16 Mortgage trading loans and ABS —   119   —   —   119 Total trading account assets —   254   —   —   254 Net derivative assets —   (2,526 )   627   —   (1,899 ) Loans and leases (2) —   —   —   172   172 Mortgage servicing rights —   —   (1,804 )   —   (1,804 ) Loans held-for-sale (2) —   —   65   127   192 Other assets 90   —   (54 )   (95 )   (59 ) Trading account liabilities – Corporate securities and other —   3   —   —   3 Long-term debt (2) —   (105 )   —   (134 )   (239 ) Total $ 90   $ (2,374 )   $ (1,166 )   $ 70   $ (3,380 ) (1)  Mortgage banking income does not reflect the impact of Level 1 and Level 2 hedges on MSRs. (2)  Amounts represent instruments that are accounted for under the fair value option.
Fair Value Inputs, Assets and Liabilities, Quantitative Information	The following tables present information about significant unobservable inputs related to the Corporation's material categories of Level 3 financial assets and liabilities at September 30, 2013 and December 31, 2012. Quantitative Information about Level 3 Fair Value Measurements at September 30, 2013   (Dollars in millions)     Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average Loans and Securities (1)           Instruments backed by residential real estate assets $ 3,331 Discounted cash flow, Market comparables Yield 2% to 25% 7  % Trading account assets – Mortgage trading loans and ABS 356 Prepayment speed 0% to 35% CPR 9  % Loans and leases 2,366 Default rate 0% to 20% CDR 7  % Loans held-for-sale 609 Loss severity 0% to 85% 37  % Commercial loans, debt securities and other $ 11,973 Discounted cash flow, Market comparables Yield 0% to 45% 3  % Trading account assets – Corporate securities, trading loans and other 3,686 Enterprise value/EBITDA multiple 0x to 19x 6  x Trading account assets – Mortgage trading loans and ABS 4,164 Prepayment speed 5% to 40% 20  % AFS debt securities – Other taxable securities 3,169 Default rate 1% to 5% 4  % Loans and leases 650 Loss severity 25% to 40% 35  % Loans held-for-sale 304       Auction rate securities $ 1,755 Discounted cash flow, Market comparables Projected tender price/Re-financing level 50% to 100% 95  % Trading account assets – Corporate securities, trading loans and other 94     AFS debt securities – Other taxable securities 844       AFS debt securities – Tax-exempt securities 817       Structured liabilities           Long-term debt $ (2,063 ) Industry standard derivative pricing (2) Equity correlation 18% to 98% 66  %     Long-dated volatilities 4% to 69% 25  %           Net derivatives assets           Credit derivatives $ 1,300 Discounted cash flow, Stochastic recovery correlation model Yield 4% to 25% 16  %     Credit spreads 29 bps to 183 bps 170 bps     Upfront points 0 points to 100 points 63 points     Spread to index -1,731 bps to 1,681 bps 207 bps     Credit correlation 21% to 73% 45  %     Prepayment speed 3% to 40% CPR 14  %     Default rate 1% to 5% CDR 3  %     Loss severity 20% to 42% 35  % Equity derivatives $ (918 ) Industry standard derivative pricing (2) Equity correlation 18% to 98% 66 %     Long-dated volatilities 4% to 69% 25 %           Commodity derivatives $ 11 Discounted cash flow, Industry standard derivative pricing (2) Natural gas forward price $3/MMBtu to $12/MMBtu $7/MMBtu     Correlation 47% to 94% 81  %     Volatilities 9% to 84% 29  % Interest rate derivatives $ 375 Industry standard derivative pricing (3) Correlation (IR/IR) 24% to 99% 61  %     Correlation (FX/IR) -65% to 50% -2  %     Long-dated inflation volatilities 0% to 2% 1  % Total net derivative assets $ 768         (1)  The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 237: Trading account assets – Corporate securities, trading loans and other of $3.8 billion, Trading account assets – Mortgage trading loans and ABS of $4.5 billion, AFS debt securities – Other taxable securities of $4.0 billion, AFS debt securities – Tax-exempt securities of $817 million, Loans and leases of $3.0 billion and LHFS of $913 million. (2)  Includes models such as Monte Carlo simulation and Black-Scholes. (3)  Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. CPR = Constant Prepayment Rate CDR = Constant Default Rate EBITDA = Earnings before interest, taxes, depreciation and amortization MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange Quantitative Information about Level 3 Fair Value Measurements for Loans, Securities and Structured Liabilities at December 31, 2012   (Dollars in millions)     Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average Loans and Securities (1)           Instruments backed by residential real estate assets $ 4,478 Discounted cash flow, Market comparables Yield 2% to 25% 6 % Trading account assets – Mortgage trading loans and ABS 459 Prepayment speed 1% to 30% CPR 10 % Loans and leases 1,286 Default rate 0% to 44% CDR 6 % Loans held-for-sale 2,733 Loss severity 6% to 85% 43 % Instruments backed by commercial real estate assets $ 1,910 Discounted cash flow Yield 5% n/a Other assets 1,910 Loss severity 51% to 100% 88 % Commercial loans, debt securities and other $ 10,778 Discounted cash flow, Market comparables Yield 0% to 25% 4 % Trading account assets – Corporate securities, trading loans and other 2,289 Enterprise value/EBITDA multiple 2x to 11x 5x Trading account assets – Mortgage trading loans and ABS 4,476 Prepayment speed 5% to 30% 20 % AFS debt securities – Other taxable securities 3,012 Default rate 1% to 5% 4 % Loans and leases 1,001 Loss severity 25% to 40% 35 % Auction rate securities $ 3,414 Discounted cash flow, Market comparables Discount rate 4% to 5% 4 % Trading account assets – Corporate securities, trading loans and other 1,437 Projected tender price/Re-financing level 50% to 100% 92 % AFS debt securities – Other taxable securities 916     AFS debt securities – Tax-exempt securities 1,061       Structured liabilities           Long-term debt (2) $ (2,301 ) Industry standard derivative pricing (3) Equity correlation 30% to 97% n/m     Long-dated volatilities 20% to 70% n/m           Quantitative Information about Level 3 Fair Value Measurements for Net Derivative Assets at December 31, 2012 (Dollars in millions)     Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Net derivatives assets         Credit derivatives $ 2,327 Discounted cash flow, Stochastic recovery correlation model Yield 2% to 25%     Credit spreads 58 bps to 615 bps     Upfront points 25 points to 99 points     Spread to index -2,080 bps to 1,972 bps     Credit correlation 19% to 75%     Prepayment speed 3% to 30% CPR     Default rate 0% to 8% CDR     Loss severity 25% to 42% Equity derivatives $ (1,295 ) Industry standard derivative pricing (3) Equity correlation 30% to 97%     Long-dated volatilities 20% to 70%         Commodity derivatives $ (5 ) Discounted cash flow Natural gas forward price $3/MMBtu to $12/MMBtu Interest rate derivatives $ 441 Industry standard derivative pricing (4) Correlation (IR/IR) 15% to 99%     Correlation (FX/IR) -65% to 50%     Long-dated inflation rates 2% to 3%     Long-dated inflation volatilities 0% to 1%     Long-dated volatilities (FX) 5% to 36%     Long-dated swap rates 8% to 10% Total net derivative assets $ 1,468       (1)  The categories are aggregated based upon product type which differs from financial statement classification. The following is a reconciliation to the line items in the table on page 238: Trading account assets – Corporate securities, trading loans and other of $3.7 billion, Trading account assets – Mortgage trading loans and ABS of $4.9 billion, AFS debt securities – Other taxable securities of $3.9 billion, AFS debt securities – Tax-exempt securities of $1.1 billion, Loans and leases of $2.3 billion, LHFS of $2.7 billion and Other assets of $1.9 billion. (2)  For more information on the ranges of inputs for equity correlation and long-dated volatilities, see the qualitative equity derivatives discussion on page 245. (3)  Includes models such as Monte Carlo simulation and Black-Scholes. (4)  Includes models such as Monte Carlo simulation, Black-Scholes and other methods that model the joint dynamics of interest, inflation and foreign exchange rates. n/a = not applicable n/m = not meaningful CPR = Constant Prepayment Rate CDR = Constant Default Rate EBITDA = Earnings before interest, taxes, depreciation and amortization MMBtu = Million British thermal units IR = Interest Rate FX = Foreign Exchange
Assets and Liabilities Measured at Fair Value on Nonrecurring Basis	Assets Measured at Fair Value on a Nonrecurring Basis       September 30, 2013   Three Months Ended September 30, 2013   Nine Months Ended September 30, 2013 (Dollars in millions) Level 2   Level 3   Gains (Losses) Assets               Loans held-for-sale $ 4,266   $ 274   $ 1   $ (66 ) Loans and leases (1) 23   5,114   (281 )   (985 ) Foreclosed properties (2) 17   1,293   21   23 Other assets 78   10   (7 )   (15 )                   September 30, 2012   Three Months Ended September 30, 2012   Nine Months Ended September 30, 2012 Assets               Loans held-for-sale $ 3,551   $ 1,006   $ —   $ (6 ) Loans and leases (1) 16   8,576   (1,548 )   (3,422 ) Foreclosed properties (2) 64   1,436   (20 )   (68 ) Other assets 32   111   (11 )   (13 ) (1)  Losses represent charge-offs on real estate-secured loans. (2)  Amounts are included in other assets on the Consolidated Balance Sheet and represent the fair value of, and related losses on foreclosed properties that were written down subsequent to their initial classification as foreclosed properties.
Fair Value Inputs, Assets, Quantitative Information	The table below presents information about significant unobservable inputs related to the Corporation's nonrecurring Level 3 financial assets and liabilities at September 30, 2013 and December 31, 2012. Quantitative Information about Nonrecurring Level 3 Fair Value Measurements at September 30, 2013   (Dollars in millions)     Inputs Financial Instrument Fair Value Valuation Technique Significant Unobservable Inputs Ranges of Inputs Weighted Average Instruments backed by residential real estate assets $ 5,114 Market comparables OREO discount 0% to 19% 9 % Loans and leases 5,114 Cost to sell 8% n/a Quantitative Information about Nonrecurring Level 3 Fair Value Measurements at December 31, 2012   Instruments backed by residential real estate assets $ 9,932 Discounted cash flow, Market comparables Yield 3% to 5% 3 % Loans held-for-sale 748 Prepayment speed 3% to 30% 15 % Loans and leases 9,184 Default rate 0% to 55% 7 %     Loss severity 6% to 66% 48 %     OREO discount 0% to 28% 15 %     Cost to sell 8% n/a Instruments backed by commercial real estate assets $ 388 Discounted cash flow Yield 4% to 13% 6 % Loans held-for-sale 388 Loss severity 24% to 88% 53 % n/a = not applicable
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Level 3 Total Realized and Unrealized Gains (Losses) Included in Earnings	Level 3 – Total Realized and Unrealized Gains (Losses) Included in Earnings   Three Months Ended September 30, 2013 (Dollars in millions) Equity Investment Income (Loss)   Trading Account Profits (Losses)   Mortgage Banking Income (Loss) (1)   Other Income (Loss)   Total Trading account assets:                   Corporate securities, trading loans and other $ —   $ 133   $ —   $ —   $ 133 Equity securities —   4   —   —   4 Non-U.S. sovereign debt —   11   —   —   11 Mortgage trading loans and ABS —   (7 )   —   —   (7 ) Total trading account assets —   141   —   —   141 Net derivative assets —   (727 )   228   —   (499 ) AFS debt securities:                   Non-U.S. securities —   —   —   5   5 Other taxable securities —   —   —   2   2 Tax-exempt securities —   —   —   2   2 Total AFS debt securities —   —   —   9   9 Loans and leases (2) —   —   (38 )   18   (20 ) Mortgage servicing rights —   —   71   —   71 Loans held-for-sale (2) —   —   —   40   40 Other assets 16   —   —   (13 )   3 Trading account liabilities – Corporate securities and other —   1   —   —   1 Accrued expenses and other liabilities (2) —   —   8   —   8 Long-term debt (2) —   (31 )   —   (31 )   (62 ) Total $ 16   $ (616 )   $ 269   $ 23   $ (308 )                       Three Months Ended September 30, 2012 Trading account assets:                   Corporate securities, trading loans and other $ —   $ 69   $ —   $ —   $ 69 Equity securities —   15   —   —   15 Non-U.S. sovereign debt —   7   —   —   7 Mortgage trading loans and ABS —   111   —   —   111 Total trading account assets —   202   —   —   202 Net derivative assets —   (1,214 )   958   —   (256 ) AFS debt securities – Tax-exempt securities —   —   —   7   7 Loans and leases (2) —   —   —   69   69 Mortgage servicing rights —   —   (360 )   —   (360 ) Loans held-for-sale (2) —   —   10   76   86 Other assets 39   —   (15 )   —   24 Trading account liabilities – Corporate securities and other —   4   —   —   4 Long-term debt (2) —   (45 )   —   (46 )   (91 ) Total $ 39   $ (1,053 )   $ 593   $ 106   $ (315 ) (1)  Mortgage banking income does not reflect the impact of Level 1 and Level 2 hedges on MSRs. (2)  Amounts represent instruments that are accounted for under the fair value option. Level 3 – Total Realized and Unrealized Gains (Losses) Included in Earnings   Nine Months Ended September 30, 2013 (Dollars in millions) Equity Investment Income (Loss)   Trading Account Profits (Losses)   Mortgage Banking Income (Loss) (1)   Other Income (Loss)   Total Trading account assets:                   Corporate securities, trading loans and other $ —   $ 256   $ —   $ —   $ 256 Equity securities —   54   —   —   54 Non-U.S. sovereign debt —   56   —   —   56 Mortgage trading loans and ABS —   165   —   —   165 Total trading account assets —   531   —   —   531 Net derivative assets —   (581 )   767   —   186 AFS debt securities:                   Non-U.S. securities —   —   —   5   5 Other taxable securities —   —   —   5   5 Tax-exempt securities —   —   —   3   3 Total AFS debt securities —   —   —   13   13 Loans and leases (2) —   —   (38 )   118   80 Mortgage servicing rights —   —   1,531   —   1,531 Loans held-for-sale (2) —   —   2   18   20 Other assets 52   —   124   (500 )   (324 ) Trading account liabilities – Corporate securities and other —   7   —   —   7 Accrued expenses and other liabilities (2) —   —   30   —   30 Long-term debt (2) —   49   —   (8 )   41 Total $ 52   $ 6   $ 2,416   $ (359 )   $ 2,115                       Nine Months Ended September 30, 2012 Trading account assets:                   Corporate securities, trading loans and other $ —   $ 192   $ —   $ —   $ 192 Equity securities —   24   —   —   24 Non-U.S. sovereign debt —   5   —   —   5 Mortgage trading loans and ABS —   194   —   —   194 Total trading account assets —   415   —   —   415 Net derivative assets —   (2,358 )   2,375   —   17 AFS debt securities:                   Non-agency residential MBS —   —   —   (69 )   (69 ) Corporate/Agency bonds —   —   —   (2 )   (2 ) Other taxable securities —   —   —   7   7 Tax-exempt securities —   —   —   61   61 Total AFS debt securities —   —   —   (3 )   (3 ) Loans and leases (2) —   —   —   284   284 Mortgage servicing rights —   —   (1,297 )   —   (1,297 ) Loans held-for-sale (2) —   —   105   160   265 Other assets 28   —   (57 )   (81 )   (110 ) Trading account liabilities – Corporate securities and other —   4   —   —   4 Accrued expenses and other liabilities (2) —   —   —   4   4 Long-term debt (2) —   (104 )   —   (135 )   (239 ) Total $ 28   $ (2,043 )   $ 1,126   $ 229   $ (660 ) (1)  Mortgage banking income does not reflect the impact of Level 1 and Level 2 hedges on MSRs. (2)  Amounts represent instruments that are accounted for under the fair value option.