Consolidated Balance Sheet (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Assets
Cash and due from banks	$ 1,284,442	$ 1,368,040
Interest-bearing deposits at banks	8,474,839	7,594,350
Trading account	506,131	273,783
Investment securities (includes pledged securities that can be sold or repledged of $2,119,744 at June 30, 2016; $2,136,712 at December 31, 2015)
Available for sale (cost: $11,578,829 at June 30, 2016; $12,138,636 at December 31, 2015)	11,918,974	12,242,671
Held to maturity (fair value: $2,623,259 at June 30, 2016; $2,864,147 at December 31, 2015)	2,574,421	2,859,709
Other (fair value: $469,689 at June 30, 2016; $554,059 at December 31, 2015)	469,689	554,059
Total investment securities	14,963,084	15,656,439
Loans and leases	88,754,824	87,719,234
Unearned discount	(232,826)	(229,735)
Loans and leases, net of unearned discount	88,521,998	87,489,499
Allowance for credit losses	(970,496)	(955,992)
Loans and leases, net	87,551,502	86,533,507
Premises and equipment	658,216	666,682
Goodwill	4,593,112	4,593,112
Core deposit and other intangible assets	116,531	140,268
Accrued interest and other assets	5,672,727	5,961,703
Total assets	123,820,584	122,787,884
Liabilities
Noninterest-bearing deposits	30,700,066	29,110,635
Interest-checking deposits	2,672,524	2,939,274
Savings deposits	48,453,713	46,627,370
Time deposits	12,630,277	13,110,392
Deposits at Cayman Islands office	193,523	170,170
Total deposits	94,650,103	91,957,841
Federal funds purchased and agreements to repurchase securities	206,943	150,546
Other short-term borrowings	200,180	1,981,636
Accrued interest and other liabilities	1,963,093	1,870,714
Long-term borrowings	10,328,751	10,653,858
Total liabilities	107,349,070	106,614,595
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, 2016 and December 31, 2015; Liquidation preference of $10,000 per share: 50,000 shares at June 30, 2016 and December 31, 2015	1,231,500	1,231,500
Common stock, $.50 par, 250,000,000 shares authorized, 159,957,393 shares issued at June 30, 2016; 159,563,512 shares issued at December 31, 2015	79,979	79,782
Common stock issuable, 33,546 shares at June 30, 2016; 36,644 shares at December 31, 2015	2,201	2,364
Additional paid-in capital	6,690,671	6,680,768
Retained earnings	8,801,305	8,430,502
Accumulated other comprehensive income (loss), net	(101,021)	(251,627)
Treasury stock - common, at cost - 2,073,692 shares at June 30, 2016	(233,121)
Total shareholders' equity	16,471,514	16,173,289
Total liabilities and shareholders' equity	$ 123,820,584	$ 122,787,884