Pension and Other Post Retirement Plans (Details 3) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
U.S. qualified pension plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	$ 15.3
2015	19.6
2016	24.6
2017	29.7
2018	35.0
2019-2023	254.6
Postretirement Medical Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	2.9
2015	5.3
2016	6.0
2017	6.7
2018	7.7
2019-2023	42.3
U.K. pension plan [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	0.7
2015	0.7
2016	0.7
2017	0.7
2018	0.8
2019-2023	$ 4.2