Financing Arrangements and Derivative Financial Instruments Schedule of Classification of Changes in Fair Values of Foreign Currency Contracts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Derivative Instruments and Hedging Activities Disclosures
Amounts deferred to Accumulated Other Comprehensive Loss (AOCL)	$ (15)	$ 2
Amount of deferred (gain) loss reclassified from AOCL into CGS	(5)	1
Deferred Gains to be Reclassified within Twelve Months	$ 19