Securities - Realized Gains and Losses (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2016 |
Jun. 30, 2015 |
Jun. 30, 2016 |
Jun. 30, 2015 |
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| Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] | ||||
| Net gains on sales of AFS debt securities | $ 493 | $ 436 | ||
| Debt securities | ||||
| Available-for-sale Securities, Gross Realized Gain (Loss) [Abstract] | ||||
| Gross gains | $ 271 | $ 170 | 508 | 445 |
| Gross losses | (4) | (2) | (15) | (9) |
| Net gains on sales of AFS debt securities | 267 | 168 | 493 | 436 |
| Income tax expense attributable to realized net gains on sales of AFS debt securities | $ 101 | $ 64 | $ 187 | $ 166 |
| X | ||||||||||
- Definition Available-for-sale Securities, Income Tax Expense on Realized Gain (Loss) Excluding Other Than Temporary Impairments No definition available.
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- Definition This item represents the gross profit realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition This item represents the difference between the gross realized gains and losses realized on the sale of debt or equity securities categorized neither as held-to-maturity nor trading securities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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- Definition Amount of loss realized on the sale of debt or equity securities classified as available-for-sale. Excludes other than temporary impairments (OTTI). No definition available.
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- Details
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