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Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Unremitted foreign earnings $ 1,900.0    
Unrecognized deferred withholding taxes on undistributed earnings of foreign subsidiaries , excluding non-cash E&P 1,400.0    
Unrecognized deferred withholding taxes on undistributed earnings of foreign subsidiaries , excluding non-cash E&P reinvested 546.0    
Unrecognized deferred withholding taxes on undistributed earnings of foreign subsidiaries 69.0    
Gross unrecognized tax benefits, excluding interest 51.4    
Reconciliation of beginning and ending amount of unrecognized tax benefits      
Gross unrecognized tax benefits at the beginning of the year 22.7 $ 15.9 $ 6.6
Gross increases - tax positions in prior periods 17.8 1.2 4.7
Gross increases - current period tax positions 10.9 5.6 4.7
Lapse of statutes     (0.1)
Gross unrecognized tax benefits at the end of the year 51.4 22.7 $ 15.9
Accrued interest and penalties related to uncertain tax positions 3.1 $ 1.8  
Penalties and interest (benefit) expense relating to unrecognized tax benefits $ 1.5    
Statutory tax rate (as a percent) 21.00% 21.00% 21.00%
Change in tax rate - foreign jurisdictions (as a percent) (0.10%) 0.10% 0.30%
Germany and Switzerland      
Reconciliation of beginning and ending amount of unrecognized tax benefits      
Change in tax rate - foreign jurisdictions (as a percent) 5.70%    
Germany      
Reconciliation of beginning and ending amount of unrecognized tax benefits      
Statutory tax rate (as a percent) 30.00%    
Switzerland      
Reconciliation of beginning and ending amount of unrecognized tax benefits      
Statutory tax rate (as a percent) 20.00%