Consolidated Condensed Statements of Condition (Parenthetical) - USD ($)		Mar. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Real Estate Acquired Through Foreclosure	[1]	$ 24,521,000	$ 33,063,000	$ 39,776,000
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		232,547,029	238,586,637	233,498,534
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
Premises and Equipment classified as held-for-sale		$ 10,800,000
Residential Real Estate [Member]
Mortgage Loans In Process Of Foreclosure Amount		31,200,000	$ 29,700,000	$ 28,000,000
Real Estate Acquired Through Foreclosure		11,700,000	14,600,000	17,500,000
Residential Real Estate [Member] | Loans Held For Sale [Member]
Mortgage Loans In Process Of Foreclosure Amount		$ 22,000,000	$ 22,400,000	$ 23,800,000

[1] March 31, 2016 and 2015 an d December 31, 2015 include $11.7 million , $17.5 million and $14.6 million, respectively, of foreclosed residential real estate.