Pension and Other Post-Employment Plans - Summary of Funded Status (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
U.S. Benefit Plan
Funded Status of Plan
Fair value of plan assets, end of year	$ 120.2	$ 142.5	$ 131.6
Benefit obligation, end of year	142.0	180.2	169.4
Funded status, end of year	(21.8)	(37.7)
Non-U.S. Benefit Plan
Funded Status of Plan
Fair value of plan assets, end of year	56.5	57.4	55.2
Benefit obligation, end of year	52.8	57.6	$ 52.3
Funded status, end of year	$ 3.7	$ (0.2)