XML 99 R85.htm IDEA: XBRL DOCUMENT v3.6.0.2
Employee Benefit Plans (Summary of Net Periodic Pension Cost) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]      
Service cost $ 9.0 $ 8.4 $ 9.3
Interest cost 4.5 3.8 5.7
Expected return on plan assets (3.9) (3.5) (3.4)
Curtailment gain 0.0 0.0 (6.6)
Actuarial and other (gain) loss 10.1 (5.0) 12.3
Total net periodic pension cost $ 19.7 $ 3.7 $ 17.3
Discount rate (as a percent) 1.60% 1.82% 1.64%
Expected return on plan assets (as a percent) 3.20% 2.46% 2.25%
Rate of compensation increase (as a percent) 3.05% 2.96% 3.03%