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Other Post-Retirement Employee Benefit Plans (Benefit Payments That Reflect Expected Future Service) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Defined Benefit Plan Disclosure [Line Items]  
2014 $ 190.0
2015 197.9
2016 201.1
2017 204.5
2018 209.5
2019 - 2023 1,074.1
Other Post-Retirement Benefits
 
Defined Benefit Plan Disclosure [Line Items]  
2014 18.0
2015 17.8
2016 17.8
2017 17.8
2018 17.7
2019 - 2023 $ 79.5