Consolidated Statements of Condition (Parenthetical) (USD $)	Mar. 31, 2015		Dec. 31, 2014	Mar. 31, 2014
Real Estate Acquired Through Foreclosure	$ 39,776,000	[1]	$ 39,922,000	$ 66,035,000
Common stock, par value	$ 0.625		$ 0.625	$ 0.625
Common stock, shares authorized	400,000,000		400,000,000	400,000,000
Common stock, shares issued	233,498,534		234,219,663	236,586,017
Preferred stock, no par value	$ 0		$ 0	$ 0
Preferred Stock Liquidation Preference Value	$ 100,000		$ 100,000	$ 100,000
Preferred stock, shares authorized	1,000		1,000	1,000
Preferred stock, shares issued	1,000		1,000	1,000
Residential Real Estate [Member]
Mortgage Loans In Process Of Foreclosure, Amount	28,000,000
Real Estate Acquired Through Foreclosure	17,500,000
Residential Real Estate [Member] | Loans Held-For-Sale
Mortgage Loans In Process Of Foreclosure, Amount	$ 23,800,000

[1] (c) March 31, 2015 includes $17.5 million of foreclosed residential real estate properties.