Income Tax - Narrative (Details) - USD ($) $ in Millions	3 Months Ended						12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Contingency [Line Items]
Effect of unrecognized tax benefits			$ 73.0				$ (12.8)	$ 76.3	$ (167.9)
Additional discrete tax expense				$ 18.0
Goodwill impairment							$ 845.0	$ 0.0	$ 1,484.3
Statutory federal income tax rate							21.00%	21.00%	21.00%
Undistributed earnings of foreign subsidiaries	$ 34.0	$ 26.7					$ 34.0	$ 26.7
Remaining unrecognized tax benefits	5.4	1.4					5.4	1.4
Unrecognized tax benefits, income tax penalties and interest	(5.9)	1.4			$ 8.5		(5.9)	1.4	$ 8.5
Significant change in unrecognized tax benefit	31.5						31.5
Reduction in unrecognized tax benefits			$ 250.0
Decrease resulting from settlements with taxing authorities		$ 125.0					3.7	$ 161.8	$ 0.4
Domestic | General business tax credit carryforward
Income Tax Contingency [Line Items]
Capital loss carryforwards, tax effect	70.9						70.9
Operating loss carryforwards, not subject to expiration	19.6						19.6
Foreign | General business tax credit carryforward
Income Tax Contingency [Line Items]
Capital loss carryforwards, tax effect	196.0						196.0
Operating loss carryforwards, not subject to expiration	38.3						$ 38.3
Canada
Income Tax Contingency [Line Items]
Statutory federal income tax rate							26.00%
Minimum
Income Tax Contingency [Line Items]
Estimate of possible loss						$ 135.0
Statutes of limitations, term							3 years
Minimum | Europe
Income Tax Contingency [Line Items]
Statutory federal income tax rate							9.00%
Maximum
Income Tax Contingency [Line Items]
Statutes of limitations, term							7 years
Maximum | Europe
Income Tax Contingency [Line Items]
Statutory federal income tax rate							25.80%
EMEA and APAC
Income Tax Contingency [Line Items]
Goodwill impairment					$ 1,484.3
Americas
Income Tax Contingency [Line Items]
Goodwill impairment	$ 845.0						$ 845.0