Consolidated Balance Sheet (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Assets
Cash and due from banks	$ 1,489,232	$ 1,432,805
Interest-bearing deposits at banks	20,197,937	7,190,154
Federal funds sold		3,500
Trading account	1,215,573	470,129
Investment securities (includes pledged securities that can be sold or repledged of $89,351 at September 30, 2020; $200,339 at December 31, 2019)
Available for sale (cost: $5,090,064 at September 30, 2020; $6,258,276 at December 31, 2019)	5,302,338	6,318,776
Held to maturity (fair value: $2,031,926 at September 30, 2020; $2,699,206 at December 31, 2019)	1,938,694	2,656,917
Equity and other securities (cost: $458,498 at September 30, 2020; $487,041 at December 31, 2019)	481,972	521,558
Total investment securities	7,723,004	9,497,251
Loans and leases	98,849,533	91,188,525
Unearned discount	(402,485)	(265,656)
Loans and leases, net of unearned discount	98,447,048	90,922,869
Allowance for credit losses	(1,758,505)	(1,051,071)
Loans and leases, net	96,688,543	89,871,798
Premises and equipment	1,146,681	1,140,924
Goodwill	4,593,112	4,593,112
Core deposit and other intangible assets	17,294	29,034
Accrued interest and other assets	5,555,367	5,644,050
Total assets	138,626,743	119,872,757
Liabilities
Noninterest-bearing deposits	44,201,670	32,396,407
Savings and interest-checking deposits	65,732,130	54,932,162
Time deposits	4,329,550	5,757,456
Deposits at Cayman Islands office	899,989	1,684,044
Total deposits	115,163,339	94,770,069
Short-term borrowings	46,123	62,363
Accrued interest and other liabilities	1,857,383	2,337,490
Long-term borrowings	5,458,885	6,986,186
Total liabilities	122,525,730	104,156,108
Shareholders' equity
Preferred stock, $1.00 par, 1,000,000 shares authorized; Issued and outstanding: Liquidation preference of $1,000 per share: 350,000 shares at September 30, 2020 and December 31, 2019; Liquidation preference of $10,000 per share: 90,000 shares at September 30, 2020 and December 31, 2019	1,250,000	1,250,000
Common stock, $.50 par, 250,000,000 shares authorized, 159,741,898 shares issued at September 30, 2020 and December 31, 2019	79,871	79,871
Common stock issuable, 17,999 shares at September 30, 2020; 21,534 shares at December 31, 2019	1,327	1,566
Additional paid-in capital	6,609,573	6,593,539
Retained earnings	13,132,374	12,820,916
Accumulated other comprehensive income (loss), net	175,503	(206,680)
Treasury stock — common, at cost — 31,456,705 shares at September 30, 2020; 29,174,402 shares at December 31, 2019	(5,147,635)	(4,822,563)
Total shareholders’ equity	16,101,013	15,716,649
Total liabilities and shareholders’ equity	$ 138,626,743	$ 119,872,757