XML 49 R65.htm IDEA: XBRL DOCUMENT v3.2.0.727
Employee Benefit Plans (Net Pension And Postretirement Cost) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Pension Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Service cost $ 4.6 $ 4.3 $ 9.3 $ 8.6
Interest cost 7.8 9.4 15.6 18.8
Expected return on plan assets (11.1) (11.2) (22.2) (22.4)
Amortization of net actuarial loss 2.8 2.2 5.6 4.4
Amortization of prior service cost (credit) 0.1 0.2 0.2 0.4
Net periodic pension or postretirement benefit cost 4.2 4.9 8.5 9.8
Postretirement Benefits [Member]        
Defined Benefit Plan Disclosure [Line Items]        
Service cost     0.0 0.1
Interest cost 0.3 0.4 0.7 0.8
Amortization of prior service cost (credit) 0.1 0.1 0.1 0.1
Net periodic pension or postretirement benefit cost $ 0.4 $ 0.5 $ 0.8 $ 1.0