Profit Sharing, Retirement Savings Plans and Defined Benefit Pension Plans - Fair Values of Pension Plan Assets, by Asset Category and Level of Fair Values (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 828.3	$ 836.6
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.0	2.1
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	345.1	364.9
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	211.9	206.4
NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	268.3	263.2
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	9.8	11.0
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.0	2.1
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.8	8.9
Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Cash and cash equivalents | NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Fixed income funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	409.5	417.3
Fixed income funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Fixed income funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	282.5	298.9
Fixed income funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Fixed income funds | NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	127.0	118.4
Equity funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	114.1	122.3
Equity funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Equity funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	49.2	48.0
Equity funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Equity funds | NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	64.9	74.3
Other
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	294.9	286.0
Other | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.0	0.0
Other | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6.6	9.1
Other | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	211.9	206.4
Other | NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 76.4	$ 70.5