Financing Arrangements and Derivative Financial Instruments 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		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Foreign Currency Cash Flow Derivatives and Hedging Activities [Abstract]
Amounts deferred to Accumulated Other Comprehensive Loss (AOCL)	$ 5	$ 4	$ (2)	$ 2
Amount of deferred (gain) loss reclassified from AOCL into CGS	1	(6)	3	(10)
Amounts excluded from effectiveness testing	$ 0	$ (1)	$ 0	$ (1)