Financing Arrangements and Derivative Financial Instruments (Schedule of Fair Values for Foreign Currency Contracts Not Designated as Heding Instruments) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Derivatives - Net Transaction Gains (Losses)	$ 54	$ (38)
Accounts receivable
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value - Accounts Receivable	20	3
Other current liabilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair Value - Other Current Liabilities	(4)	(17)
Not Designated as Hedging Instrument
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Foreign Currency Derivatives Not Designated as Hedges - Notional Amounts	$ 878	$ 1,231