Benefit Plans Schedule of Assumptions Used (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Weighted average assumptions used to determine benefit obligations: [Abstract]
Discount rate	5.00%	4.60%	5.80%
Rate of compensation increase	4.40%	5.30%	2.70%
Weighted average assumptions used to determine net benefit cost for the year ended December 31:
Discount rate	4.60%	5.80%	5.10%
Expected return on plan assets	4.50%	3.60%	3.60%
Rate of compensation increase	5.30%	2.70%	2.70%