Other Post-Employment Benefits and Other Employee Benefit Plans - Accumulated Other Comprehensive Loss Expected to be Recognized as Components of Net Periodic Benefit Cost (Details) - Other Post-Employment Benefits and Other Employee Benefit Plans $ in Millions	Dec. 31, 2019 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net prior service credits	$ (0.3)
Unrecognized net actuarial gain	(0.2)
Total	$ (0.5)