XML 82 R64.htm IDEA: XBRL DOCUMENT v3.3.1.900
Employee Benefit Plans (Net Pension And Postretirement Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Pension Benefits      
Service cost $ 18.7 $ 16.8 [1] $ 18.0
Interest cost 31.2 37.3 [1] 35.4
Expected return on plan assets (44.4) (44.5) [1] (37.6)
Amortization of net actuarial losses 8.0 9.5 [1] 14.0
Amortization of prior service cost 0.4 0.8 [1] 0.8
Net loss recognized due to settlement 0.2 0.4 [1] 0.1
Net gain recognized due to curtailment 0.0 (0.5) [1] 0.0
Special termination benefits 0.5 1.3 [1] 0.0
Net annual pension cost $ 14.6 $ 21.0 [1] $ 30.7
Weighted average discount rate 3.50% 4.40% 4.30%
Postretirement Benefits      
Service cost $ 0.0 $ 0.1 $ 0.1
Interest cost 1.3 1.6 1.7
Amortization of net actuarial losses 0.1 0.1 0.5
Amortization of prior service cost 0.2 0.2 0.2
Other 0.0 0.2 0.0
Net annual pension cost $ 1.6 $ 2.2 $ 2.5
Weighted average discount rate 4.60% 5.30% 4.70%
[1] Rounding may impact summation of amounts.