Derivative Financial Instruments (Narrative) (Details) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2011 USD ($)	Jun. 30, 2012 USD ($)	Jun. 30, 2012 EUR (€)	Jun. 30, 2012 Foreign Exchange Contracts [Member] USD ($)	Jun. 30, 2011 Foreign Exchange Contracts [Member] USD ($)	Jun. 30, 2012 Foreign Exchange Contracts [Member] USD ($)	Jun. 30, 2011 Foreign Exchange Contracts [Member] USD ($)	Jun. 30, 2012 Minimum [Member]	Jun. 30, 2012 Maximum [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Objectives for Using Derivative Instruments	The Company’s objective in managing exposure to market risk is to limit the impact on earnings and cash flow.
Net loss to be reclassified to earnings	$ (56)
Loss, net of tax, expected to be reclassified to earnings	(43)
Reclassification of anticipated transactions that were no longer considered probable	0	0
Ineffective portion recorded in earnings			1
Changes in fair value of the derivative financial instruments, excluded from the assessment and measurement of hedge effectiveness reported in earnings			1
Gain (loss) on foreign exchange contracts designated as fair value hedges					(1)	3	1	4
Gain (loss) on foreign exchange contracts not designated as fair value hedges					(4)	7	(3)	19
Notional Amount of Net Investment Hedging Instruments	350		350	277
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax			14
Derivative, Lower Remaining Maturity Range									1
Derivative, Higher Remaining Maturity Range										35
Other Comprehensive Income (Loss) Foreign Currency Transaction and Translation Adjustment from Net Investment Hedge Net of Tax			9
Derivatives used in Net Investment Hedge, Net of Tax, Period Increase (Decrease)							$ (1)