XML 81 R68.htm IDEA: XBRL DOCUMENT v3.22.0.1
Employee Benefit Plans (Change in Plan Assets) (Details) - Pension Plans [Member] - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]      
Balance at January 1 $ 388.2 $ 356.9 $ 315.8
Actual return on plan assets 34.0 38.8 49.2
Defined Benefit Plan, Plan Assets, Benefits Paid (19.9) (7.5) (8.1)
Balance at December 31 $ 402.3 $ 388.2 $ 356.9