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Financial Instruments Derivative Activities Table (Details) - USD ($) $ in Millions | Jun. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Credit swaps(1) |  |  |
Derivative [Line Items] |  |  |
Long Notional Exposure | [1] | $ 228 | $ 389
Short Notional Exposure | [1] | 1,909 | 1,493
Equity swaps |  |  |
Derivative [Line Items] |  |  |
Long Notional Exposure |  | 1 | 1
Short Notional Exposure |  | 14,720 | 11,312
Foreign currency forwards |  |  |
Derivative [Line Items] |  |  |
Long Notional Exposure |  | 0 | 0
Short Notional Exposure |  | 864 | 1,578
Interest rate swap contracts |  |  |
Derivative [Line Items] |  |  |
Notional value of interest rate swap agreements |  | 16,000 | 16,000
Notional Exposure of Derivatives, Short Position, less than three months |  | 74 | 74
Long Notional Exposure | [2] | 0 | 0
Short Notional Exposure | [2] | 137 | 137
Credit Default Swap [Member] |  |  |
Derivative [Line Items] |  |  |
Notional value of interest rate swap agreements |  | 10,700 | 9,300
Short Notional Exposure |  | 1,900 | 1,500
Commodity contracts |  |  |
Derivative [Line Items] |  |  |
Long Notional Exposure |  | 31 | 36
Short Notional Exposure |  | $ 216 | $ 234
[1] | The short notional amount on our credit swap positions is approximately $10.7 billion and $9.3 billion as of June 30, 2015 and December 31, 2014, respectively. However, because credit spreads cannot compress below zero, our downside short notional exposure to loss is approximately $1.9 billion and $1.5 billion as of June 30, 2015 and December 31, 2014, respectively.
[2] | The short notional amount on certain of our interest rate contracts with a three month duration is approximately $16.0 billion as of both June 30, 2015 and December 31, 2014. We assume that interest rates will not fall below zero and therefore our downside short notional exposure to loss on these contracts is $74 million (of the total $137 million disclosed in the above table) as of both June 30, 2015 and December 31, 2014.

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