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Borrowed Funds (Long-term Borrowings) (Narrative) (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Debt Disclosure [Abstract]
Long-term borrowings	$ 679,000	$ 699,000
Average interest rate paid on long-term borrowings	5.34%	5.34%

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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