Pension and Post-Retirement Benefits - Target Asset Allocations and Weighted Average Asset Allocations (Details)	12 Months Ended
	Dec. 31, 2013
Equity Securities | United States
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	57.00%
Target Asset Allocations, Maximum	93.00%
Weighted Average Asset Allocations	75.00%
Equity Securities | International
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	38.00%
Target Asset Allocations, Maximum	50.00%
Weighted Average Asset Allocations	45.00%
Real Estate | United States
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	0.00%
Target Asset Allocations, Maximum	0.00%
Weighted Average Asset Allocations	0.00%
Real Estate | International
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	6.00%
Target Asset Allocations, Maximum	12.00%
Weighted Average Asset Allocations	10.00%
Debt Securities | United States
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	10.00%
Target Asset Allocations, Maximum	40.00%
Weighted Average Asset Allocations	25.00%
Debt Securities | International
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	36.00%
Target Asset Allocations, Maximum	57.00%
Weighted Average Asset Allocations	41.00%
Other | United States
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	0.00%
Target Asset Allocations, Maximum	5.00%
Weighted Average Asset Allocations	0.00%
Other | International
Defined Benefit Plan Disclosure [Line Items]
Target Asset Allocations, Minimum	0.00%
Target Asset Allocations, Maximum	10.00%
Weighted Average Asset Allocations	4.00%