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Short-Term Borrowings and Credit Lines (Narrative) (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
United States    
Line of Credit Facility [Line Items]    
Line of Credit Facility, Fair Value of Amount Outstanding $ 0 $ 0
United States | United States of America, Dollars    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity 500,000  
Europe | United States of America, Dollars    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity 5,000  
Europe | Euro Member Countries, Euro    
Line of Credit Facility [Line Items]    
Maximum borrowing capacity $ 4,400