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Fair Value, Assets and Liabilities Measured on a Recurring Basis Level 3 Valuation Techniques and Significant Unobservable Inputs (Details) (USD $)
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3 Months Ended | 12 Months Ended |
|---|---|---|
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Mar. 31, 2013
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Dec. 31, 2012
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Mortgages held for sale, carried at fair value | 42,624,000,000 | 42,305,000,000 |
| Loans | 6,183,000,000 | 6,206,000,000 |
| MSRs (carried at fair value) | 12,061,000,000 | 11,538,000,000 |
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Interest Rate Contract [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Prepayment rate | 5.80% | 7.40% |
| Loss severity | 50.00% | 45.80% |
| Default rate | 0.00% | 0.00% |
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Interest Rate Contract [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Prepayment rate | 15.60% | 15.60% |
| Loss severity | 81.80% | 83.20% |
| Default rate | 20.00% | 20.00% |
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Interest Rate Contract [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Prepayment rate | 15.00% | 14.90% |
| Loss severity | 51.30% | 51.60% |
| Default rate | 5.60% | 5.40% |
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Derivative Loan Commitments [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Fall-out factor | 1.00% | 1.00% |
| Initial-value servicing (in bps) | (13.7) | (13.7) |
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Derivative Loan Commitments [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Fall-out factor | 99.00% | 99.00% |
| Initial-value servicing (in bps) | 124.3 | 137.2 |
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Derivative Loan Commitments [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Fall-out factor | 21.90% | 22.90% |
| Initial-value servicing (in bps) | 79.7 | 85.6 |
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Equity Contract [Member] | Minimum [Member] | Option model [Member]
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| Fair Value Inputs [Abstract] | ||
| Volatility factor | 9.50% | 3.00% |
| Correlation factor | (25.00%) | (43.60%) |
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Equity Contract [Member] | Maximum [Member] | Option model [Member]
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| Fair Value Inputs [Abstract] | ||
| Volatility factor | 68.20% | 68.90% |
| Correlation factor | 94.50% | 94.50% |
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Equity Contract [Member] | Weighted Average [Member] | Option model [Member]
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| Fair Value Inputs [Abstract] | ||
| Volatility factor | 22.90% | 26.50% |
| Correlation factor | 67.30% | 50.30% |
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Credit Contract [Member] | Minimum [Member] | Market comparable pricing [Member]
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| Fair Value Inputs [Abstract] | ||
| Comparability adjustment | (32.80%) | (34.40%) |
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Credit Contract [Member] | Minimum [Member] | Option model [Member]
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| Fair Value Inputs [Abstract] | ||
| Loss severity | 16.50% | 16.50% |
| Credit spread | 0.10% | 0.10% |
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Credit Contract [Member] | Maximum [Member] | Market comparable pricing [Member]
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| Fair Value Inputs [Abstract] | ||
| Comparability adjustment | 33.50% | 30.50% |
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Credit Contract [Member] | Maximum [Member] | Option model [Member]
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| Fair Value Inputs [Abstract] | ||
| Loss severity | 87.50% | 87.50% |
| Credit spread | 14.00% | 14.00% |
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Credit Contract [Member] | Weighted Average [Member] | Market comparable pricing [Member]
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| Fair Value Inputs [Abstract] | ||
| Comparability adjustment | 0.10% | 0.10% |
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Credit Contract [Member] | Weighted Average [Member] | Option model [Member]
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| Fair Value Inputs [Abstract] | ||
| Loss severity | 45.60% | 52.30% |
| Credit spread | 1.20% | 2.00% |
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Government, healthcare and other revenue bonds [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 0.50% | 0.50% |
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Government, healthcare and other revenue bonds [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 5.00% | 4.80% |
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Government, healthcare and other revenue bonds [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 1.40% | 1.80% |
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Auction rate and other municipal bonds [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 0.50% | 2.00% |
| Weighted average life | 3 years | 3 years |
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Auction rate and other municipal bonds [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 13.30% | 12.90% |
| Weighted average life | 13 years | 7 years 6 months 7 days |
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Auction rate and other municipal bonds [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 5.20% | 4.40% |
| Weighted average life | 3 years 7 months 6 days | 3 years 4 months 28 days |
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Collateralized loan and other debt obligations [Member] | Minimum [Member] | Market comparable pricing [Member]
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| Fair Value Inputs [Abstract] | ||
| Comparability adjustment | (22.30%) | (22.50%) |
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Collateralized loan and other debt obligations [Member] | Maximum [Member] | Market comparable pricing [Member]
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| Fair Value Inputs [Abstract] | ||
| Comparability adjustment | 24.00% | 24.70% |
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Collateralized loan and other debt obligations [Member] | Weighted Average [Member] | Market comparable pricing [Member]
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| Fair Value Inputs [Abstract] | ||
| Comparability adjustment | (3.00%) | 3.50% |
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Auto loans and leases [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 0.40% | 0.60% |
| Prepayment rate | 0.60% | 0.60% |
| Loss severity | 50.00% | 50.00% |
| Default rate | 2.00% | 2.10% |
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Auto loans and leases [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 1.80% | 1.60% |
| Prepayment rate | 0.90% | 0.90% |
| Loss severity | 66.50% | 66.60% |
| Default rate | 9.30% | 9.70% |
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Auto loans and leases [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 0.80% | 1.00% |
| Prepayment rate | 0.70% | 0.70% |
| Loss severity | 53.00% | 51.80% |
| Default rate | 3.00% | 3.20% |
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Dealer Floorplan [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 0.60% | 0.50% |
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Dealer Floorplan [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 2.20% | 2.20% |
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Dealer Floorplan [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 1.60% | 1.90% |
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Diversified Payment Rights [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 1.20% | 1.00% |
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Diversified Payment Rights [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 2.80% | 2.90% |
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Diversified Payment Rights [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 1.90% | 1.80% |
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Other Commercial and Consumer [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 0.60% | 0.60% |
| Weighted average life | 0 years 9 months 18 days | 1 year |
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Other Commercial and Consumer [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 8.70% | 6.80% |
| Weighted average life | 7 years 3 months 17 days | 7 years 6 months 7 days |
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Other Commercial and Consumer [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 2.80% | 2.70% |
| Weighted average life | 2 years 2 months 13 days | 2 years 10 months 26 days |
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Perpetual preferred securities [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 4.40% | 4.30% |
| Weighted average life | 1 year | 1 year |
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Perpetual preferred securities [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 9.20% | 9.30% |
| Weighted average life | 7 years | 7 years |
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Perpetual preferred securities [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 5.90% | 6.30% |
| Weighted average life | 5 years 5 months 29 days | 5 years 3 months 22 days |
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Mortgages held for sale [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 3.40% | 3.40% |
| Prepayment rate | 1.00% | 1.00% |
| Loss severity | 1.40% | 1.30% |
| Default rate | 0.70% | 0.60% |
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Mortgages held for sale [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 7.90% | 7.50% |
| Prepayment rate | 10.60% | 11.00% |
| Loss severity | 36.20% | 35.30% |
| Default rate | 14.90% | 14.80% |
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Mortgages held for sale [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 5.50% | 5.40% |
| Prepayment rate | 5.70% | 6.20% |
| Loss severity | 26.60% | 26.40% |
| Default rate | 3.50% | 5.50% |
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Loans Receivable [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 2.30% | 2.40% |
| Prepayment rate | 1.90% | 1.60% |
| Utilization rate | 0.00% | 0.00% |
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Loans Receivable [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 3.00% | 2.80% |
| Prepayment rate | 42.10% | 44.40% |
| Utilization rate | 2.00% | 2.00% |
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Loans Receivable [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 2.80% | 2.60% |
| Prepayment rate | 11.90% | 11.60% |
| Utilization rate | 0.80% | 0.80% |
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Residential Mortgage Servicing [Member] | Minimum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 6.40% | 6.70% |
| Prepayment rate | 7.50% | 7.30% |
| Cost to service per loan | 90 | 90 |
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Residential Mortgage Servicing [Member] | Maximum [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 10.80% | 10.90% |
| Prepayment rate | 23.30% | 23.70% |
| Cost to service per loan | 854 | 854 |
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Residential Mortgage Servicing [Member] | Weighted Average [Member] | Discounted cash flow [Member]
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| Fair Value Inputs [Abstract] | ||
| Discount rate | 7.30% | 7.40% |
| Prepayment rate | 14.20% | 15.70% |
| Cost to service per loan | 216 | 219 |
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Recurring [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Mortgages held for sale, carried at fair value | 42,624,000,000 | 42,305,000,000 |
| Loans | 6,183,000,000 | 6,206,000,000 |
| MSRs (carried at fair value) | 12,061,000,000 | 11,538,000,000 |
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Level 3 [Member] | Recurring [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Mortgages held for sale, carried at fair value | 3,187,000,000 | 3,250,000,000 |
| Loans | 5,975,000,000 | 6,021,000,000 |
| MSRs (carried at fair value) | 12,061,000,000 | 11,538,000,000 |
| Total insignificant level 3 assets, net of liabilities | 875,000,000 | 835,000,000 |
| Total level 3 assets, net of liabilities | 38,600,000,000 | 48,775,000,000 |
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Level 3 [Member] | Recurring [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Mortgages held for sale, carried at fair value | 3,187,000,000 | 3,250,000,000 |
| Loans | 5,975,000,000 | 6,021,000,000 |
| MSRs (carried at fair value) | 11,538,000,000 | |
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Level 3 [Member] | Recurring [Member] | Interest Rate Contract [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Net derivative assets and liabilities | 143,000,000 | 162,000,000 |
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Level 3 [Member] | Recurring [Member] | Derivative Loan Commitments [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Net derivative assets and liabilities | 415,000,000 | 497,000,000 |
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Level 3 [Member] | Recurring [Member] | Equity Contract [Member] | Option model [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Net derivative assets and liabilities | (129,000,000) | (122,000,000) |
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Level 3 [Member] | Recurring [Member] | Credit Contract [Member] | Market comparable pricing [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Net derivative assets and liabilities | (1,031,000,000) | (1,157,000,000) |
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Level 3 [Member] | Recurring [Member] | Credit Contract [Member] | Option model [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Net derivative assets and liabilities | 6,000,000 | 8,000,000 |
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Level 3 [Member] | Recurring [Member] | Government, healthcare and other revenue bonds [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 2,983,000,000 | 3,081,000,000 |
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Level 3 [Member] | Recurring [Member] | Auction rate and other municipal bonds [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 582,000,000 | 596,000,000 |
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Level 3 [Member] | Recurring [Member] | Collateralized loan and other debt obligations [Member] | Market comparable pricing [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 876,000,000 | 1,423,000,000 |
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Level 3 [Member] | Recurring [Member] | Collateralized loan and other debt obligations [Member] | Vendor priced [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 2,567,000,000 | 12,507,000,000 |
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Level 3 [Member] | Recurring [Member] | Auto loans and leases [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 5,704,000,000 | 5,921,000,000 |
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Level 3 [Member] | Recurring [Member] | Dealer Floorplan [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 1,472,000,000 | 1,030,000,000 |
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Level 3 [Member] | Recurring [Member] | Diversified Payment Rights [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 620,000,000 | 639,000,000 |
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Level 3 [Member] | Recurring [Member] | Other Commercial and Consumer [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 1,413,000,000 | 1,665,000,000 |
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Level 3 [Member] | Recurring [Member] | Other Commercial and Consumer [Member] | Vendor priced [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 74,000,000 | 87,000,000 |
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Level 3 [Member] | Recurring [Member] | Perpetual preferred securities [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| Trading and available for sale securities | 807,000,000 | 794,000,000 |
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Level 3 [Member] | Recurring [Member] | Residential Mortgage Servicing [Member] | Discounted cash flow [Member]
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| Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items] | ||
| MSRs (carried at fair value) | 12,061,000,000 |