Financial Instruments (Counterparty credit risk) (Details) $ in Millions |
Sep. 30, 2015
USD ($)
|
---|---|
Counterparty credit risk | |
Exposure To Counter Parties | $ 895 |
Total Collateral | 4,552 |
Exposure To Counterparties Including Interest Net Collateral Excluding Derivatives | 1,148 |
Derivative Liability After Collateral And Outstanding Interest Payments Excluding Embedded Derivatives | 540 |
Cash [Member] | |
Counterparty credit risk | |
Total Collateral | 2,858 |
Securities Held By Third Parties [Member] | |
Counterparty credit risk | |
Securities Held as Collateral, at Fair Value | $ 1,694 |