Defined Benefit Pension Plans Significant Actuarial Weighted Assumptions (Discount Rate) (Details)				12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Defined Benefit Obligation [Member]	Dec. 31, 2012 Euro Denominated Benefit Plans [Domain]	Dec. 31, 2012 Percentage of Benefit Plans Denominated in Euro [Domain]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Change in Discount Rate				215 basis point
Percentage of benefit plans denominated in euro						0.94
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate Support, Methodology and Source Data					we use three discount rates, with consideration of the duration of the plans, using a hypothetical yield curve developed from euro-denominated AA-rated corporate bond issues, partially weighted for market value, with minimum amounts outstanding of €250 million for bonds with less than 10 years to maturity and €50 million for bonds with 10 or more years to maturity, and excluding the highest and lowest yielding 10% of bonds within each maturity group.
Discount rate	3.36%	5.51%	5.35%