Consolidated Balance Sheet (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Assets
Cash and due from banks	$ 1,344,478	$ 1,320,549
Interest-bearing deposits at banks	5,023,829	5,000,638
Federal funds sold	1,000
Trading Account	174,646	323,867
Investment securities (includes pledged securities that can be sold or repledged of $504,827 at June 30, 2017; $1,203,473 at December 31, 2016)
Available for sale (cost: $11,911,151 at June 30, 2017; $13,338,301 at December 31, 2016)	11,928,865	13,332,072
Held to maturity (fair value: $3,380,532 at June 30, 2017; $2,451,222 at December 31, 2016)	3,388,268	2,457,278
Other (fair value: $498,927 at June 30, 2017; $461,118 at December 31, 2016)	498,927	461,118
Total investment securities	15,816,060	16,250,468
Loans and leases	89,322,293	91,101,677
Unearned discount	(241,738)	(248,261)
Loans and leases, net of unearned discount	89,080,555	90,853,416
Allowance for credit losses	(1,008,225)	(988,997)
Loans and leases, net	88,072,330	89,864,419
Premises and equipment	673,552	675,263
Goodwill	4,593,112	4,593,112
Core deposit and other intangible assets	86,422	97,655
Accrued interest and other assets	5,111,138	5,323,235
Total assets	120,896,567	123,449,206
Liabilities
Noninterest-bearing deposits	32,366,426	32,813,896
Savings and interest-checking deposits	52,871,146	52,346,207
Time deposits	8,107,749	10,131,846
Deposits at Cayman Islands office	195,617	201,927
Total deposits	93,540,938	95,493,876
Federal funds purchased and agreements to repurchase securities	195,453	163,442
Other short-term borrowings	1,500,000
Accrued interest and other liabilities	1,727,059	1,811,431
Long-term borrowings	7,649,580	9,493,835
Total liabilities	104,613,030	106,962,584
Shareholders' equity
Preferred stock, $1.00 par, 1,000,000 shares authorized; Issued and outstanding: Liquidation preference of $1,000 per share: 731,500 shares at June 30, 2017 and December 31, 2016; Liquidation preference of $10,000 per share: 50,000 shares at June 30, 2017 and December 31, 2016	1,231,500	1,231,500
Common stock, $.50 par, 250,000,000 shares authorized, 159,821,693 shares issued at June 30, 2017; 159,945,678 shares issued at December 31, 2016	79,911	79,973
Common stock issuable, 28,835 shares at June 30, 2017; 32,403 shares at December 31, 2016	1,940	2,145
Additional paid-in capital	6,604,930	6,676,948
Retained earnings	9,685,478	9,222,488
Accumulated other comprehensive income (loss), net	(270,081)	(294,636)
Treasury stock - common, at cost - 7,311,105 shares at June 30, 2017; 3,764,742 shares at December 31, 2016	(1,050,141)	(431,796)
Total shareholders’ equity	16,283,537	16,486,622
Total liabilities and shareholders’ equity	$ 120,896,567	$ 123,449,206