Financing Arrangements and Derivative Financial Instruments Financing Arrangements and Derivative Financial Instruments (Schedule of Fair Values for Foreign Currency Contracts Designated as Cash Flow Hedging Instruments) (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Accounts Receivable [Member]
Foreign Currency Cash Flow Hedge Derivative at Fair Value, Net [Abstract]
Foreign Currency Cash Flow Hedge Asset at Fair Value	$ 2	$ 0
Other Current Liabilities
Foreign Currency Cash Flow Hedge Derivative at Fair Value, Net [Abstract]
Foreign Currency Cash Flow Hedge Liability at Fair Value	(3)	(5)
Designated as Hedging Instrument [Member]
Foreign Currency Cash Flow Hedge Derivative at Fair Value, Net [Abstract]
Notional Amount of Foreign Currency Cash Flow Hedge Derivatives	$ 156	$ 138