Regulatory Matters, Capital Conservation Buffer (Details)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Capital Conservation Buffer [Abstract]
Capital Conservation Buffer		1.875%	1.25%	0.625%	0.00%
Minimum total capital plus capital conservation buffer		9.875%	9.25%	8.625%	8.00%
Minimum Tier 1 capital plus capital conservation buffer		7.875%	7.25%	6.625%	6.00%
Minimum Common Equity Tier 1 capital plus capital conservation buffer		6.375%	5.75%	5.125%	4.50%
Forecast [Member]
Capital Conservation Buffer [Abstract]
Capital Conservation Buffer	2.50%
Minimum total capital plus capital conservation buffer	10.50%
Minimum Tier 1 capital plus capital conservation buffer	8.50%
Minimum Common Equity Tier 1 capital plus capital conservation buffer	7.00%