Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
ASSETS
Cash and cash equivalents	$ 469,630	$ 614,630
Interest bearing funds with Federal Reserve Bank	644,528	1,498,390
Interest earning deposits with banks	24,325	23,442
Federal funds sold and securities purchased under resale agreements	80,975	113,517
Trading account assets, at fair value	6,113	11,102
Mortgage loans held for sale, at fair value	45,384	212,663
Other loans held for sale	10,685	10,690
Investment securities available for sale, at fair value	3,199,358	2,981,112
Loans, net of deferred fees and costs	20,057,798	19,541,690
Allowance for loan losses	(307,560)	(373,405)
Loans, net	19,750,238	19,168,285
Premises and equipment, net	468,871	479,546
Goodwill	24,431	24,431
Other intangible assets, net	3,415	5,149
Other real estate	112,629	150,271
Deferred tax asset, net	744,646	806,406
Other assets	616,376	660,378
Total assets	26,201,604	26,760,012
LIABILITIES AND EQUITY
Non-interest bearing deposits	5,642,751	5,665,527
Interest bearing deposits, excluding brokered deposits	14,140,037	14,298,768
Brokered deposits	1,094,002	1,092,749
Total deposits	20,876,790	21,057,044
Federal funds purchased and securities sold under repurchase agreements	148,132	201,243
Long-term debt	2,033,141	1,726,455
Other liabilities	194,556	205,839
Total liabilities	23,252,619	23,190,581
Shareholders' equity:
Common stock - $1.00 par value. Authorized 1,200,000,000 shares; issued 978,044,909 at December 31, 2013 and 792,272,692 at December 31, 2012; outstanding 972,351,457 at December 31, 2013 and 786,579,240 at December 31, 2012	978,045	792,273
Additional paid-in capital	2,138,024	2,189,874
Treasury stock, at cost – 5,693,452 shares at December 31, 2013 and December 31, 2012	(114,176)	(114,176)
Accumulated other comprehensive (loss) income	(41,258)	4,101
Accumulated deficit	(137,512)	(259,968)
Total shareholders' equity	2,948,985	3,569,431
Total liabilities and shareholders' equity	26,201,604	26,760,012
Series A Preferred Stock [Member]
Shareholders' equity:
Preferred stock	0	957,327
Series C Preferred Stock [Member]
Shareholders' equity:
Preferred stock	$ 125,862	$ 0