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	Dec. 31, 2014	Dec. 31, 2013
Accounts receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value - Accounts Receivable	$ 10	$ 3
Other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value - Other Current Liabilities	0	(3)
Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Derivatives Designated as Hedges - Notional Amount	$ 157	$ 171