Savings Plans, Pension Plans and Other Postretirement Employee Benefits (Weighted Average Assumptions used to Determne the Net Periodic Benefit (Cost)) (Details)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Pension Plans, Defined Benefit [Member]
Discount Rate	4.95%	5.65%	5.65%
Expected return on plan assets	8.00%	8.50%	8.50%
Rate of salaried compensation increase	3.50%	4.00%	4.00%
Other Postretirement Benefit Plans, Defined Benefit [Member]
Discount Rate	4.85%	5.40%	5.65%
Expected return on plan assets	0.00%	0.00%	0.00%
Rate of salaried compensation increase	0.00%	0.00%	0.00%