Financing Arrangements and Derivative Financial Instruments (Details 2) (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Accounts receivable [Member]
Fair Values - asset (liability):
Fair values for foreign currency contracts not designated as hedging instruments, Assets	$ 9	$ 26
Fair Values - asset (liability):
Foreign Currency Cash Flow Hedge Asset at Fair Value	4	11
Other assets [Member]
Fair Values - asset (liability):
Fair values for foreign currency contracts not designated as hedging instruments, Assets	0	0
Other current liabilities [Member]
Fair Values - asset (liability):
Fair values for foreign currency contracts not designated as hedging instruments, Liabilities	(14)	(5)
Fair Values - asset (liability):
Fair values for foreign currency contracts designated as cash flow hedging instruments	(1)	0
Other long term liabilities [Member]
Fair Values - asset (liability):
Fair values for foreign currency contracts not designated as hedging instruments, Liabilities	$ 0	$ (1)