Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Information for Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Details) - Pension Plan - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	$ 648.8	$ 600.1
Fair value of plan assets	481.7	435.3
U.S.
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	194.1	182.1
Fair value of plan assets	137.1	119.9
International
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation	454.7	418.0
Fair value of plan assets	$ 344.6	$ 315.4