Fair Value Option Fair Value Option - Gains (Losses) Related to Borrower-specific Credit Risk (Details) - USD ($) $ in Millions |
12 Months Ended | ||
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Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Trading Securities | |||
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||
| Fair value option, changes in borrower specific credit risk, gains (losses) on assets | $ 37 | $ 28 | $ 56 |
| Loans and leases | |||
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||
| Fair value option, changes in borrower specific credit risk, gains (losses) on assets | (200) | 32 | 148 |
| Loans Held-for-Sale | |||
| Fair Value, Option, Quantitative Disclosures [Line Items] | |||
| Fair value option, changes in borrower specific credit risk, gains (losses) on assets | $ 37 | $ 84 | $ 225 |
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- Definition This item represents the estimated amount of gains or losses included in earnings during the period attributable to changes in instrument-specific credit risk arising from loans and other receivables held as assets. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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