Employee Benefit Plans, Weighted-Average Assumptions (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Minimum [Member]
Employee Benefit Plans (Textual)
Yield curve maturities	6 months
Maximum [Member]
Employee Benefit Plans (Textual)
Yield curve maturities	99 years
Pension Plans [Member]
Weighted Average Assumptions Used to Determine Benefit Obligation
Discount rate	4.92%	4.28%
Rate of compensation increase	3.81%	3.73%
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost
Discount rate	4.33%	5.08%	5.40%
Expected long-term rate of return on plan assets	7.62%	7.67%	7.69%
Rate of compensation increase	3.73%	3.68%	3.56%
Other Postretirement Benefit Plans [Member]
Weighted Average Assumptions Used to Determine Benefit Obligation
Discount rate	4.88%	4.19%
Rate of compensation increase	0.00%	0.00%
Weighted Average Assumptions Used to Determine Net Periodic Benefit Cost
Discount rate	4.19%	4.97%	5.22%
Expected long-term rate of return on plan assets	0.00%	0.00%	0.00%
Rate of compensation increase	0.00%	0.00%	0.00%