Other Liabilities (Other Accrued and Other Long-Term Liabilities) (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Accrued Liabilities
Accrued payroll and benefits	$ 205.1	$ 212.2
Insurance reserves, current portion	152.9	144.8	$ 143.9
Accrued fees and taxes	124.2	129.7
Accrued dividends	121.0	114.4
Ceded insurance reserves, current portion	25.7	23.1
Accrued professional fees and legal settlement reserves	13.1	45.1
Current tax liabilities	0.2	11.7
Other	86.4	127.2
Total	728.6	808.2
Other Long-Term Liabilities
Deferred compensation plan	96.0	97.9
Contingent consideration and acquisition holdbacks	73.9	71.3
Ceded insurance reserves	68.0	65.9
Withdrawal liability - multiemployer pension funds	12.2	12.6
Legal settlement reserves	10.0	0.0
Pension and other post-retirement liabilities	6.0	7.0
Other	55.3	57.4
Total	$ 321.4	$ 312.1