Consolidated Statements of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
OPERATING ACTIVITIES:
Net income	$ 130,567		$ 103,629
Adjustments to reconcile net income to net cash used in operating activities:
Provision for loan losses	27,977		56,509
Provision for depreciation and amortization	23,732		24,864
Amortization of investment security premiums, net	2,413		8,752
Investment securities (gains) losses, net(A)	(3,283)	[1]	3,005	[1]
Net gains on sales of loans held for sale	(1,147)		(2,466)
Originations of loans held for sale	(28,631)		(288,903)
Proceeds from sales of loans held for sale	51,297		146,747
Net increase in trading securities	(374)		(2,121)
Stock-based compensation	2,372		3,386
Increase in interest receivable	(1,095)		(512)
Decrease in interest payable	(2,686)		(3,829)
Increase in income taxes payable	5,594		7,598
Net tax benefit related to equity compensation plans	(955)		(1,026)
Other changes, net	(10,912)		39,097
Net cash provided by operating activities	194,869		94,730
INVESTING ACTIVITIES:
Proceeds from sales of investment securities(A)	11,202	[1]	64,087	[1]
Proceeds from maturities/pay downs of investment securities(A)	1,400,631	[1]	954,133	[1]
Purchases of investment securities(A)	(1,809,501)	[1]	(1,040,529)	[1]
Net decrease in loans	139,927		356,824
Long-term securities purchased under agreements to resell	(500,000)
Repayments of long-term securities purchased under agreements to resell	100,000
Purchases of land, buildings and equipment	(11,133)		(9,395)
Sales of land, buildings and equipment	1,711		377
Net cash provided by (used in) investing activities	(667,163)		325,497
FINANCING ACTIVITIES:
Net increase in non-interest bearing, savings, interest checking and money market deposits	705,923		295,593
Net decrease in time open and C.D.'s	(62,335)		(25,649)
Net increase (decrease) in short-term federal funds purchased and securities sold under agreements to repurchase	299,643		(96,835)
Repayment of long-term borrowings	(352)		(372,065)
Net increase in short-term borrowings	8
Purchases of treasury stock	(18,341)		(943)
Issuance of stock under stock purchase and equity compensation plans	13,363		5,671
Net tax benefit related to equity compensation plans	955		1,026
Cash dividends paid on common stock	(40,110)		(39,215)
Net cash provided by (used in) financing activities	898,754		(232,417)
Increase in cash and cash equivalents	426,460		187,810
Cash and cash equivalents at beginning of year	460,675		463,834
Cash and cash equivalents at June 30	887,135		651,644
(A) Available for sale and non-marketable securities
Income tax net payments	54,661		38,182
Interest paid on deposits and borrowings	30,916		51,137
Loans transferred to foreclosed real estate	$ 18,343		$ 8,982

[1] Available for sale and non-marketable securities