Income Taxes (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2017	Dec. 31, 2016
Income Tax Contingency [Line Items]
Deferred tax liability not recognized, amount of unrecognized deferred tax liability, undistributed earnings of foreign subsidiaries		$ 3,400.0
Statutory tax rate		21.00%	21.00%	19.00%
Valuation allowance, amount		$ 780.4	$ 443.6
Expected foreign tax credits		230.3
Unrecognized tax benefit		322.9	391.1	$ 92.1		$ 96.3
Unrecognized tax benefits that impact effective tax rate		230.2
Accrued interest and penalties		96.8	86.7
Interest expense (income) related to uncertain tax positions		18.5		6.0	$ 35.2
Amount of unrecognized deferred tax liability		$ 55.0
Deduction limit of GILTI tax		50.00%
Unrecognized tax benefit — beginning of year		$ 322.9	391.1	92.1		$ 96.3
Reserve for Uncertain Tax Positions, Including Interest And Penalties		315.6
CARES Act, Income Tax Expense (Benefit)			$ 22.1
U.S. Federal Tax Authority
Income Tax Contingency [Line Items]
Net operating loss carryforwards		7.9
U.S. State Tax Authority
Income Tax Contingency [Line Items]
Net operating loss carryforwards		3,100.0
Foreign
Income Tax Contingency [Line Items]
Net operating loss carryforwards		1,570.0
Foreign deductible attributes		39.6
Credit carryforward		329.2
Foreign | Australian Taxation Office
Income Tax Contingency [Line Items]
Partial payment of anticipated tax expense		56.0
Indefinite | Foreign
Income Tax Contingency [Line Items]
Net operating loss carryforwards		748.4
2016 through 2035 | Foreign
Income Tax Contingency [Line Items]
Net operating loss carryforwards		$ 817.8
Tax Year 2015 | Domestic Tax Authority | Internal Revenue Service (IRS)
Income Tax Contingency [Line Items]
Income Tax Examination, Reserve for Uncertain Tax Position				155.0
Income Tax Examination, Reserve Impact On Income Tax Provision				$ 144.9
Scenario, Forecast
Income Tax Contingency [Line Items]
Deduction limit of GILTI tax	37.50%