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Financial Instruments Derivative Activities Table (Details) (USD $) In Millions, unless otherwise specified | Sep. 30, 2014
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Credit Default Swap, Selling Protection [Member] |  |
Derivative [Line Items] |  |
Notional value of interest rate swap agreements | $ 8,540 | [1]
Long Notional Exposure | 390 |
Short Notional Exposure | 1,277 | [1]
Equity swaps |  |
Derivative [Line Items] |  |
Long Notional Exposure | 1 |
Short Notional Exposure | 12,352 |
Foreign currency forwards |  |
Derivative [Line Items] |  |
Long Notional Exposure | 2 |
Short Notional Exposure | 1,635 |
Interest rate swap contracts |  |
Derivative [Line Items] |  |
Long Notional Exposure | 0 |
Short Notional Exposure | 63 |
Commodity contracts |  |
Derivative [Line Items] |  |
Long Notional Exposure | 39 |
Short Notional Exposure | $ 279 |
[1] | The short notional amount on our credit swap positions is $8,540 million. Because credit spreads cannot compress below zero, however, our downside short notional exposure is $1,277 million.

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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