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Fair Value Measurements - Nonrecurring Fair Value Inputs (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | 9 Months Ended | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 30, 2012
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Dec. 31, 2011
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Sep. 30, 2012
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
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Sep. 30, 2011
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
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Sep. 30, 2012
Discounted Cash Flow Market Comparables [Member]
Loans and Securities [Member]
Instruments Backed by Residential Real Estate Assets [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
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Sep. 30, 2012
Discounted Cash Flow Market Comparables [Member]
Loans and Securities [Member]
Minimum [Member]
Instruments Backed by Residential Real Estate Assets [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
|
Sep. 30, 2012
Discounted Cash Flow Market Comparables [Member]
Loans and Securities [Member]
Maximum [Member]
Instruments Backed by Residential Real Estate Assets [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
|
Sep. 30, 2012
Discounted Cash Flow [Member]
Loans and Securities [Member]
Instruments Backed by Commercial Real Estate Assets [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
|
Sep. 30, 2012
Discounted Cash Flow [Member]
Loans and Securities [Member]
Minimum [Member]
Instruments Backed by Commercial Real Estate Assets [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
|
Sep. 30, 2012
Discounted Cash Flow [Member]
Loans and Securities [Member]
Maximum [Member]
Instruments Backed by Commercial Real Estate Assets [Member]
Fair Value, Inputs, Level 3 [Member]
Fair Value, Measurements, Nonrecurring [Member]
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| Fair Value, Option, Quantitative Disclosures [Line Items] | ||||||||||||||
| Loans and Securities Fair Value Disclosure | $ 9,277 | $ 305 | ||||||||||||
| Loans Held-for-sale, Fair Value Disclosure | 11,077 | 7,630 | 1,006 | 1,465 | 701 | 305 | ||||||||
| Loans and leases | $ 8,576 | [1] | $ 10,368 | [1] | $ 8,576 | |||||||||
| Fair Value Inputs, Yield | 3.00% | 6.00% | 4.00% | 13.00% | ||||||||||
| Fair Value Inputs, Prepayment Rate | 2.00% | 27.00% | ||||||||||||
| Fair Value Inputs, Probability of Default | 0.00% | 67.00% | ||||||||||||
| Fair Value Inputs, Loss Severity | 6.00% | 72.00% | 22.00% | 100.00% | ||||||||||
| Fair Value Inputs, Discount Rate | 0.00% | 29.00% | ||||||||||||
| Fair Value Inputs, Cost to Sell | 8.00% | |||||||||||||
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