Parent Company Only Financial Information (Tables)

12 Months Ended

Dec. 31, 2016

Condensed Financial Information of Parent Company Only Disclosure [Abstract]

Parent Company Balance Sheet

BALANCE SHEETS

	December 31,
	2016			2015
	($ in Thousands)
ASSETS
Cash and due from banks	$	402,786		$	610,862
Investment securities available for sale, at fair value	14,389			61,847
Investment in subsidiaries	3,248,763			3,211,685
Other assets	61,242			70,595
Total assets	$	3,727,180		$	3,954,989
LIABILITIES AND STOCKHOLDERS’ EQUITY
Commercial paper	$	101,688		$	67,978
Senior notes, at par	250,000			680,000
Subordinated notes, at par	250,000			250,000
Long-term funding capitalized costs	(3,393		)	(4,061		)
Total long-term funding	496,607			925,939
Accrued expenses and other liabilities	37,573			23,826
Total liabilities	635,868			1,017,743
Preferred equity	159,929			121,379
Common equity	2,931,383			2,815,867
Total stockholders’ equity	3,091,312			2,937,246
Total liabilities and stockholders’ equity	$	3,727,180		$	3,954,989

Parent Company Income Statement

STATEMENTS OF INCOME

	For the Years Ended December 31,
	2016		2015			2014
	($ in Thousands)
INCOME
Dividends from subsidiaries	$	188,000	$	205,000		$	223,000
Interest income on notes receivable	—		—			1,264
Other income	4,669		8,441			9,713
Total income	192,669		213,441			233,977
EXPENSE
Interest expense on short and long-term funding	21,901		39,576			24,847
Other expense	4,289		4,684			776
Total expense	26,190		44,260			25,623
Income before income tax expense (benefit) and equity in undistributed net income (loss) of subsidiaries	166,479		169,181			208,354
Income tax expense (benefit)	3,468		(1,665		)	(5,801		)
Income before equity in undistributed net income (loss) of subsidiaries	163,011		170,846			214,155
Equity in undistributed net income (loss) of subsidiaries	37,263		17,455			(23,646		)
Net income	200,274		188,301			190,509
Preferred stock dividends	8,903		7,155			5,002
Net income available to common equity	$	191,371	$	181,146		$	185,507

Parent Company Statement of Cash Flows

STATEMENTS OF CASH FLOWS

	For the Years Ended December 31,
	2016			2015			2014
	($ in Thousands)
OPERATING ACTIVITIES
Net income	$	200,274		$	188,301		$	190,509
Adjustments to reconcile net income to net cash provided by operating activities:
(Increase) decrease in equity in undistributed net income of subsidiaries	(37,263		)	(17,455		)	23,646
Gain on sales of investment securities, net	(466		)	—			(214		)
Asset gain, net	(793		)	(5,673		)	(5,609		)
Net change in other assets and other liabilities	19,708			(10,997		)	(14,022		)
Net cash provided by operating activities	181,460			154,176			194,310
INVESTING ACTIVITIES
Proceeds from sales of investment securities	47,719			13,962			88,844
Net decrease in notes receivable	—			—			46,594
Purchase of other assets, net of disposals	2,211			11,964			10,930
Net cash provided by investing activities	49,930			25,926			146,368
FINANCING ACTIVITIES
Net increase (decrease) in short-term funding	33,710			(6,319		)	8,813
Repayment of long-term funding	(430,000		)	—			(155,000		)
Proceeds from issuance of long-term funding	—			—			496,030
Proceeds from issuance of common stock for stock-based compensation plans	21,748			20,054			13,228
Proceeds from issuance of preferred stock	97,066			62,966			—
Redemption of preferred stock	(58,903		)	—			—
Purchase of preferred stock	(1,248		)	(1,335		)	(2,451		)
Purchase of common stock returned to authorized but unissued	(20,007		)	(93,000		)	(150,498		)
Purchase of treasury stock	—			—			(108,600		)
Purchase of treasury stock for tax withholding	(5,074		)	(5,154		)	(3,712		)
Cash dividends on common stock	(67,855		)	(62,400		)	(58,710		)
Cash dividends on preferred stock	(8,903		)	(7,155		)	(5,002		)
Net cash provided by (used in) financing activities	(439,466		)	(92,343		)	34,098
Net increase (decrease) in cash and cash equivalents	(208,076		)	87,759			374,776
Cash and cash equivalents at beginning of year	610,862			523,103			148,327
Cash and cash equivalents at end of year	$	402,786		$	610,862		$	523,103