Financing Arrangements and Derivative Financial Instruments Schedule of Classification of Changes in Fair Values of Foreign Currency Contracts (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosures
Amounts deferred to Accumulated Other Comprehensive Loss (AOCL)	$ 3	$ 0	$ (12)	$ 2
Amount of deferred (gain) loss reclassified from AOCL into CGS	(10)	0	(15)	1
Deferred Gains to be Reclassified within Twelve Months			9
Gain (Loss) on Components Excluded from Assessment of Foreign Currency Cash Flow Hedge Effectiveness	$ 1	$ 1	$ 1	$ 1