Regulatory Matters (Regulatory Capital Levels And Related Ratios) (Parenthetical) (Details)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Fourth Year Phased In [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum capital required including percentage of capital conservation buffer	2.50%
Third Year Phased In [Member]
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Minimum capital required including percentage of capital conservation buffer		2.50%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Period Type:	duration