XML 96 R80.htm IDEA: XBRL DOCUMENT v3.10.0.1
Pension and Other Postretirement Benefit Plans - Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Retirement Benefits [Abstract]    
Projected benefit obligation $ 635.0 $ 768.1
Accumulated benefit obligation 624.0 754.1
Fair value of plan assets $ 414.2 $ 525.7