Income Taxes, Deferred Tax Assets and Deferred Tax Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Deferred tax assets attributable to:
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Accrued Liabilities	$ 472.3	$ 511.3
U.S. federal and state loss and credit carryovers	66.2	55.1
Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Allowance for Doubtful Accounts	37.5	37.6
International loss carryovers	330.6	313.0
Deferred Tax Assets, Investments	20.4	1.6
Pension liabilities	27.9	27.7
Deferred tax assets, gross	954.9	946.3
Less: valuation allowances	(164.9)	(172.7)
Deferred tax assets, net	790.0	773.6
Deferred tax liabilities attributable to:
Property and equipment	8.4	24.8
Intangible assets	277.5	277.7
Income deferred for tax purposes	26.6	11.4
Other	4.9	7.1
Deferred tax liabilities	317.4	321.0
Net deferred taxes	472.6	$ 452.6
U.S. [Member]
Deferred tax liabilities attributable to:
Net operating loss carryforwards	47.6
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	47.6
State [Member]
Deferred tax liabilities attributable to:
Net operating loss carryforwards	19.2
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	19.2
International [Member]
Deferred tax liabilities attributable to:
Net operating loss carryforwards	1,324.0
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	$ 1,324.0

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
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