Securitizations and Other Variable Interest Entities - First Lien Mortgages VIE (Details) (USD $)
In Millions, unless otherwise specified |
Jun. 30, 2014
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Mar. 31, 2014
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Dec. 31, 2013
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Jun. 30, 2013
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Mar. 31, 2013
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Dec. 31, 2012
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Held-to-maturity securities | $ 60,022 | [1] | $ 55,150 | ||||||||||||||||||
Loans and leases | 911,899 | 928,233 | |||||||||||||||||||
Allowance for loan and lease losses | (15,811) | (16,618) | (17,428) | (21,235) | (22,441) | (24,179) | |||||||||||||||
All other Assets | 121,651 | 124,090 | |||||||||||||||||||
Total assets | 2,170,557 | [2] | 2,102,273 | [2] | 2,123,320 | [2] | |||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 257,071 | 249,674 | |||||||||||||||||||
Total liabilities | 1,933,146 | 1,869,588 | |||||||||||||||||||
In Text Details [Abstract] | |||||||||||||||||||||
Unpaid principal balance of mortgage loans eligible for repurchase | 999 | 1,600 | |||||||||||||||||||
Principal amount that would be payable to the securitization vehicles | (999) | (1,600) | |||||||||||||||||||
Unconsolidated VIEs [Member] | Agency MBS [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 12,611 | [3] | 21,140 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Residual interests held | 0 | 0 | |||||||||||||||||||
All other Assets | 25 | [4] | 27 | [4] | |||||||||||||||||
Total assets | 12,611 | 21,140 | |||||||||||||||||||
Principal balance outstanding | 417,123 | [5] | 437,765 | [5] | |||||||||||||||||
Unconsolidated VIEs [Member] | Prime Loan [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 1,446 | [3] | 1,527 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Residual interests held | 27 | 13 | |||||||||||||||||||
All other Assets | 56 | [4] | 71 | [4] | |||||||||||||||||
Total assets | 1,032 | 1,087 | |||||||||||||||||||
Principal balance outstanding | 23,564 | [5] | 25,104 | [5] | |||||||||||||||||
Unconsolidated VIEs [Member] | Subprime Loan [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 2,905 | [3] | 591 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Residual interests held | 0 | 0 | |||||||||||||||||||
All other Assets | 1 | [4] | 1 | [4] | |||||||||||||||||
Total assets | 2,553 | 236 | |||||||||||||||||||
Principal balance outstanding | 35,790 | [5] | 36,854 | [5] | |||||||||||||||||
Unconsolidated VIEs [Member] | Alt-A Loan [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 699 | [3] | 437 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Residual interests held | 0 | 0 | |||||||||||||||||||
All other Assets | 268 | [4] | 325 | [4] | |||||||||||||||||
Total assets | 699 | 437 | |||||||||||||||||||
Principal balance outstanding | 53,870 | [5] | 56,454 | [5] | |||||||||||||||||
Unconsolidated VIEs [Member] | Commercial Mortgage Backed Securities [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 341 | [3] | 432 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Residual interests held | 53 | 16 | |||||||||||||||||||
All other Assets | 0 | [4] | 0 | [4] | |||||||||||||||||
Total assets | 314 | 402 | |||||||||||||||||||
Principal balance outstanding | 22,978 | [5] | 19,730 | [5] | |||||||||||||||||
Consolidated VIEs [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Loans and leases | 102,799 | 109,118 | |||||||||||||||||||
Allowance for loan and lease losses | (2,326) | (2,674) | |||||||||||||||||||
All other Assets | 3,946 | 4,577 | |||||||||||||||||||
Total assets | 112,281 | 121,002 | |||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 16,333 | 19,448 | |||||||||||||||||||
All other liabilities | 93 | 253 | |||||||||||||||||||
Total liabilities | 17,353 | 20,851 | |||||||||||||||||||
Consolidated VIEs [Member] | Agency MBS [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 39,795 | [3] | 42,420 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 727 | 1,640 | |||||||||||||||||||
Loans and leases | 38,427 | 40,316 | |||||||||||||||||||
Allowance for loan and lease losses | (2) | (3) | |||||||||||||||||||
All other Assets | 649 | 474 | |||||||||||||||||||
Total assets | 39,801 | 42,427 | |||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 6 | 7 | |||||||||||||||||||
All other liabilities | 0 | 0 | |||||||||||||||||||
Total liabilities | 6 | 7 | |||||||||||||||||||
Consolidated VIEs [Member] | Prime Loan [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 77 | [3] | 79 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 0 | 0 | |||||||||||||||||||
Loans and leases | 138 | 140 | |||||||||||||||||||
Allowance for loan and lease losses | 0 | 0 | |||||||||||||||||||
All other Assets | 1 | 0 | |||||||||||||||||||
Total assets | 139 | 140 | |||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 59 | 61 | |||||||||||||||||||
All other liabilities | 3 | 0 | |||||||||||||||||||
Total liabilities | 62 | 61 | |||||||||||||||||||
Consolidated VIEs [Member] | Subprime Loan [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 181 | [3] | 183 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 0 | 0 | |||||||||||||||||||
Loans and leases | 796 | 803 | |||||||||||||||||||
Allowance for loan and lease losses | 0 | 0 | |||||||||||||||||||
All other Assets | 10 | 7 | |||||||||||||||||||
Total assets | 806 | 810 | |||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 795 | 803 | |||||||||||||||||||
All other liabilities | 11 | 7 | |||||||||||||||||||
Total liabilities | 806 | 810 | |||||||||||||||||||
Consolidated VIEs [Member] | Alt-A Loan [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 0 | [3] | 0 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 0 | 0 | |||||||||||||||||||
Loans and leases | 0 | 0 | |||||||||||||||||||
Allowance for loan and lease losses | 0 | 0 | |||||||||||||||||||
All other Assets | 0 | 0 | |||||||||||||||||||
Total assets | 0 | 0 | |||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 0 | 0 | |||||||||||||||||||
All other liabilities | 0 | 0 | |||||||||||||||||||
Total liabilities | 0 | 0 | |||||||||||||||||||
Consolidated VIEs [Member] | Commercial Mortgage Backed Securities [Member] | First Lien Mortgages [Member]
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Variable Interest Entity [Line Items] | |||||||||||||||||||||
Maximum loss exposure | 0 | [3] | 0 | [3] | |||||||||||||||||
On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 0 | 0 | |||||||||||||||||||
Loans and leases | 0 | 0 | |||||||||||||||||||
Allowance for loan and lease losses | 0 | 0 | |||||||||||||||||||
All other Assets | 0 | 0 | |||||||||||||||||||
Total assets | 0 | 0 | |||||||||||||||||||
On Balance Sheet Liabilities [Abstract] | |||||||||||||||||||||
Long-term debt | 0 | 0 | |||||||||||||||||||
All other liabilities | 0 | 0 | |||||||||||||||||||
Total liabilities | 0 | 0 | |||||||||||||||||||
Senior Securities [Member] | Unconsolidated VIEs [Member] | Agency MBS [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 512 | [6] | 650 | [6] | |||||||||||||||||
Debt securities carried at fair value | 11,142 | [6] | 19,451 | [6] | |||||||||||||||||
Held-to-maturity securities | 932 | [6] | 1,012 | [6] | |||||||||||||||||
Senior Securities [Member] | Unconsolidated VIEs [Member] | Prime Loan [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 4 | [6] | 0 | [6] | |||||||||||||||||
Debt securities carried at fair value | 932 | [6] | 988 | [6] | |||||||||||||||||
Held-to-maturity securities | 0 | [6] | 0 | [6] | |||||||||||||||||
Senior Securities [Member] | Unconsolidated VIEs [Member] | Subprime Loan [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 29 | [6] | 1 | [6] | |||||||||||||||||
Debt securities carried at fair value | 2,490 | [6] | 220 | [6] | |||||||||||||||||
Held-to-maturity securities | 0 | [6] | 0 | [6] | |||||||||||||||||
Senior Securities [Member] | Unconsolidated VIEs [Member] | Alt-A Loan [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 52 | [6] | 3 | [6] | |||||||||||||||||
Debt securities carried at fair value | 378 | [6] | 109 | [6] | |||||||||||||||||
Held-to-maturity securities | 0 | [6] | 0 | [6] | |||||||||||||||||
Senior Securities [Member] | Unconsolidated VIEs [Member] | Commercial Mortgage Backed Securities [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 53 | [6] | 14 | [6] | |||||||||||||||||
Debt securities carried at fair value | 79 | [6] | 306 | [6] | |||||||||||||||||
Held-to-maturity securities | 65 | [6] | 0 | [6] | |||||||||||||||||
Subordinate Securities [Member] | Unconsolidated VIEs [Member] | Agency MBS [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 0 | [6] | 0 | [6] | |||||||||||||||||
Debt securities carried at fair value | 0 | [6] | 0 | [6] | |||||||||||||||||
Subordinate Securities [Member] | Unconsolidated VIEs [Member] | Prime Loan [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 0 | [6] | 0 | [6] | |||||||||||||||||
Debt securities carried at fair value | 13 | [6] | 15 | [6] | |||||||||||||||||
Subordinate Securities [Member] | Unconsolidated VIEs [Member] | Subprime Loan [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 28 | [6] | 8 | [6] | |||||||||||||||||
Debt securities carried at fair value | 5 | [6] | 6 | [6] | |||||||||||||||||
Subordinate Securities [Member] | Unconsolidated VIEs [Member] | Alt-A Loan [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 1 | [6] | 0 | [6] | |||||||||||||||||
Debt securities carried at fair value | 0 | [6] | 0 | [6] | |||||||||||||||||
Subordinate Securities [Member] | Unconsolidated VIEs [Member] | Commercial Mortgage Backed Securities [Member] | First Lien Mortgages [Member]
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On Balance Sheet Assets [Abstract] | |||||||||||||||||||||
Trading account assets | 12 | [6] | 13 | [6] | |||||||||||||||||
Debt securities carried at fair value | $ 52 | [6] | $ 53 | [6] | |||||||||||||||||
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