|
Fair Value Disclosures (Narrative) (Details) (Recurring, USD $)
In Billions, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Jun. 30, 2012
|
Jun. 30, 2011
|
Jun. 30, 2012
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Jun. 30, 2011
|
|
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Assets | Financial Instruments Owned | Corporate and Other Debt
|
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| Amount reclassification from level 3 to level 2 | $ 1.2 | $ 1.8 | ||
| Amount reclassification from level 2 to level 3 | 0.8 | 0.6 | ||
|
Assets | Financial Instruments Owned | Net Derivative and Other Contracts
|
||||
| Amount reclassified from level 1 to level 2 | 0.5 | 0.4 | ||
| Amount reclassified from level 2 to level 1 | 1.5 | 0.9 | 2.0 | 1.1 |
|
Liabilities | Financial Instruments Sold, Not yet Purchased | Net Derivative and Other Contracts
|
||||
| Amount reclassified from level 1 to level 2 | 0.7 | 0.4 | ||
| Amount reclassified from level 2 to level 1 | $ 1.7 | $ 1.3 | $ 1.8 | $ 0.9 |