Financial Instruments and Derivative Financial Instruments Concentration of Credit Risks (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Concentration of Credit Risks [Abstract]
Percentage of sales to foreign countries	59.00%	56.00%	58.00%
Maximum percentage of consolidated sales attributable to one customer	10.00%
Percentage of sales from top ten customers	37.00%	38.00%	36.00%