Commitments and Contingencies (Details) (USD $) In Millions, unless otherwise specified	6 Months Ended	12 Months Ended	3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended		6 Months Ended	3 Months Ended	6 Months Ended		6 Months Ended
	Jun. 30, 2014 claims LegalMatter	Dec. 31, 2013 claims LegalMatter	Dec. 31, 2012 Minimum [Member]	Jun. 30, 2014 Minimum [Member] defendant	Dec. 31, 2012 Maximum [Member]	Jun. 30, 2014 Maximum [Member] defendant	Dec. 31, 2013 Maximum [Member]	Dec. 31, 2012 Maximum [Member]	Jun. 30, 2014 Superfund Sites Proceedings [Member] LegalMatter	Jun. 30, 2014 PCB Contamination Proceedings [Member]	Jun. 30, 2014 PCB Contamination Proceedings [Member]	Dec. 31, 2013 PCB Contamination Proceedings [Member]	Jun. 30, 2014 Connecticut Voluntary Corrective Action Program [Member]
Commitments and Contingencies Disclosure [Line Items]
Number of pending claims (legal matter)	407	362							1
Estimated total cleanup costs, cost sharing percentage (percent)									2.00%
Loss contingency, minimum possible loss									$ 18.8
Loss contingency, maximum possible loss									29.6
Estimated total cleanup costs, accrual	0.4
Accrual for environmental loss contingencies										0.7	0.7	1.0
Increase (decrease) in accrual										0.3
PCB contamination of the building, liability recording during the period											0.6		0.3
Remediation and monitoring costs incurred since inception related to the PCB soil and building contamination											2.3
Number of defendants (defendant)				1		833
Description of named defendants	Cases involving us typically name 50-300 defendants
Number of claims dismissed	54	115
Number of claims settled (claim)	2	23
Claims settlements amount (claim)	0.3	4.8
Asbestos forecast claim period (years)			5 years		10 years	10 years	10 years	10 years
Cost sharing agreement, expiration date	Jan. 25, 2015
Asbestos-related liabilities, estimated liability		59.7
Asbestos-related liabilities, estimated insurance recovery		$ 57.1