Financial Instruments Interest Expense (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Debt Disclosure [Abstract]
Interest Expense	$ 113	$ 31	$ 36	[1]
Interest Costs Capitalized	$ 3

[1] Includes revenue and expenses from acquisitions from the acquisition date, see Note 3. Basis of Presentation and Note 5. Acquisitions, Divestitures and Certain Investments.