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Financing Arrangements - Additional Information (Details)
6 Months Ended
Jun. 30, 2020
Mar. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Dec. 31, 2019
EUR (€)
Debt Instrument [Line Items]        
Annual interest rate, potential increase 0.25%      
Annual interest rate, maximum potential increase 0.50%      
Foreign Line of Credit        
Debt Instrument [Line Items]        
Line of credit, current borrowing capacity     $ 224,000,000 € 200,000,000
Line of credit facility, interest rate at period end 0.91%      
Senior Notes Due 2025 | Senior Notes        
Debt Instrument [Line Items]        
Senior notes   $ 750,000,000    
Senior notes, interest rate   3.75%    
Senior Notes Due 2030 | Senior Notes        
Debt Instrument [Line Items]        
Senior notes   $ 500,000,000    
Senior notes, interest rate   3.95%