Financial Derivatives (Internal Credit Ratings of Risk Participation Agreements Sold) (Details) (Risk Participation Agreements Sold [Member])	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Risk Level, High [Member]
Credit Derivatives [Line Items]
Internal Credit Ratings of Risk Participation Agreements Sold	1.00%	2.00%
Risk Level, Low [Member]
Credit Derivatives [Line Items]
Internal Credit Ratings of Risk Participation Agreements Sold	99.00%	98.00%