Pension and Other Post-Retirement Benefits (Details 6) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	$ 447.8
Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets
Domestic defined benefit pension plans [Member]
Weighted-average asset allocations of domestic funded pension plans
Target asset allocation percentage	100.00%
Actual plan asset allocations	100.00%	100.00%
Domestic defined benefit pension plans [Member] | Equity Securities [Member]
Weighted-average asset allocations of domestic funded pension plans
Target asset allocation percentage	65.90%
Actual plan asset allocations	66.70%	65.30%
Domestic defined benefit pension plans [Member] | Debt Securities [Member]
Weighted-average asset allocations of domestic funded pension plans
Target asset allocation percentage	29.10%
Actual plan asset allocations	27.80%	28.90%
Domestic defined benefit pension plans [Member] | Real Estate [Member]
Weighted-average asset allocations of domestic funded pension plans
Target asset allocation percentage	5.00%
Actual plan asset allocations	5.40%	5.80%
Domestic defined benefit pension plans [Member] | Cash [Member]
Weighted-average asset allocations of domestic funded pension plans
Target asset allocation percentage	0.00%
Actual plan asset allocations	0.10%	0.00%
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets	25.1	409.1
Fair Value, Inputs, Level 1 [Member] | Common Stock [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Fair Value of Plan Assets