Employee Retirement Plans (Weighted-Average Assumptions Used To Determine Net Periodic Benefit Cost) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Domestic [Member] | Pension Benefits [Member]
Weighted-Average Assumptions Used To Determine Net Periodic Benefit Cost For Years [Line Items]
Discount rate	4.75%	5.25%	5.75%
Expected return on plan assets	6.00%	6.50%	7.25%
Rate of compensation increase	4.25%	4.25%	4.25%
Domestic [Member] | Postretirement Benefits [Member]
Weighted-Average Assumptions Used To Determine Net Periodic Benefit Cost For Years [Line Items]
Discount rate	4.75%	5.25%	5.75%
International [Member] | Pension Benefits [Member]
Weighted-Average Assumptions Used To Determine Net Periodic Benefit Cost For Years [Line Items]
Discount rate	4.40%	4.75%	5.75%
Expected return on plan assets	6.01%	5.59%	6.01%
Rate of compensation increase	3.44%	4.35%	4.04%