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Short-Term and Long-Term Debt - Financial Covenants (Details)
Dec. 31, 2021
Debt Instrument [Line Items]  
Actual Indebtedness to Total Capitalization Ratio 0.41
Financial Covenants [Abstract]  
Actual Indebtedness to Total Capitalization Ratio 0.41
Maximum [Member]  
Debt Instrument [Line Items]  
Allowed Indebtedness to Total Capitalization Ratio 0.65
Financial Covenants [Abstract]  
Allowed Indebtedness to Total Capitalization Ratio 0.65