Financial Instruments Foreign Exchange Risk (Details) (Foreign Exchange Contract, USD $) In Billions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Foreign Exchange Contract
Derivative [Line Items]
Derivative, Notional Amount	$ 1.4
Majority | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Term of Contract	60 days
Maximum [Member] | Foreign Exchange Contract
Derivative [Line Items]
Derivative, Term of Contract	180 days