Financial Instruments Derivative Activities Table (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013
Equity swaps
Derivative [Line Items]
Long Notional Exposure	$ 1
Short Notional Exposure	8,516
Foreign currency forwards
Derivative [Line Items]
Long Notional Exposure	52
Short Notional Exposure	1,644
Interest rate swap contracts
Derivative [Line Items]
Long Notional Exposure	0
Short Notional Exposure	103
Commodity contracts
Derivative [Line Items]
Long Notional Exposure	58
Short Notional Exposure	$ 580