Financial Instruments Derivative Activities Table (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013
Equity swaps
Derivative [Line Items]
Long Notional Exposure	$ 1
Short Notional Exposure	6,274
Foreign currency forwards
Derivative [Line Items]
Long Notional Exposure	93
Short Notional Exposure	2,180
Interest rate swap contracts
Derivative [Line Items]
Long Notional Exposure	203
Short Notional Exposure	0
Commodity contracts
Derivative [Line Items]
Long Notional Exposure	79
Short Notional Exposure	$ 588