Mortgage Servicing Rights (Narrative) (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Mortgage Servicing Rights Disclosure [Abstract]
Residential mortgage loans serviced for third parties	$ 3,100,000,000		$ 3,100,000,000
Servicing income, including late and ancillary fees	$ 2,000,000	$ 2,000,000