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Fair Value Disclosures - Nonrecurring Fair Value (Details) (Fair Value, Measurements, Nonrecurring, USD $)
In Millions, unless otherwise specified |
3 Months Ended | ||||||
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Mar. 31, 2013
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Mar. 31, 2012
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Mar. 31, 2013
Level 2
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Dec. 31, 2012
Level 2
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Mar. 31, 2013
Level 3
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Dec. 31, 2012
Level 3
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Dec. 31, 2012
Estimate of Fair Value, Fair Value Disclosure
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| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | |||||||
| Loans, notes and mortgages | $ 144 | $ 0 | $ 1 | $ 144 | $ 221 | $ 222 | |
| Gains (Losses) on loans, notes and mortgages | (82) | 12 | |||||
| Other assets | 2 | 0 | 0 | 2 | 2 | 2 | |
| Gains (Losses) on other assets | $ 0 | $ 0 | |||||
| X | ||||||||||
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- Definition
This represents the amount of gain (loss) recognized on other assets, still held as of the reporting date, measured at fair value on a nonrecurring basis. Other Assets are those not individually reported in the financial statements or separately disclosed. No definition available.
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| X | ||||||||||
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- Definition
This represents the amount of gain (loss) recognized on Loans and Leases, still held as of the reporting date, measured at fair value on a nonrecurring basis. No definition available.
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| X | ||||||||||
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- Definition
Loans, Notes and Mortgages at Fair Value No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This element represents the fair value of assets categorized as other which are not in and of themselves material enough to require separate disclosure. No definition available.
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