Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2014

Segment Reporting [Abstract]

Selected segment information

Segment Income Statement Data
	($ in Thousands)		Corporate and Commercial Specialty		Community, Consumer, and Business			Risk Management and Shared Services			Consolidated Total
2014
Net interest income		$	284,177		$	319,743		$	77,047		$	680,967
Noninterest income			46,953			223,639			19,727			290,319
	Total revenue		331,130			543,382			96,774			971,286
Credit provision *			44,819			25,972			(54,791)			16,000
Noninterest expense			141,302			470,358			67,581			679,241
Income before income taxes			145,009			47,052			83,984			276,045
Income tax expense			48,133			16,468			20,935			85,536
Net income		$	96,876		$	30,584		$	63,049		$	190,509
Return on average allocated capital (ROT1CE) **			13.2	%		5.3	%		10.4	%		9.9	%
2013
Net interest income		$	299,405		$	335,988		$	10,150		$	645,543
Noninterest income			43,944			252,140			17,015			313,099
	Total revenue		343,349			588,128			27,165			958,642
Credit provision *			51,217			24,202			(65,319)			10,100
Noninterest expense			140,508			475,261			64,880			680,649
Income before income taxes			151,624			88,665			27,604			267,893
Income tax expense (benefit)			53,068			31,033			(4,900)			79,201
Net income		$	98,556		$	57,632		$	32,504		$	188,692
Return on average allocated capital (ROT1CE) **			13.4	%		9.9	%		4.8	%		9.8	%
2012
Net interest income		$	271,902		$	320,499		$	33,591		$	625,992
Noninterest income			37,853			256,292			19,145			313,290
	Total revenue		309,755			576,791			52,736			939,282
Credit provision *			44,653			27,130			(61,683)			10,100
Noninterest expense			139,009			490,129			45,585			674,723
Income before income taxes			126,093			59,532			68,834			254,459
Income tax expense			44,133			20,836			10,517			75,486
Net income		$	81,960		$	38,696		$	58,317		$	178,973
Return on average allocated capital (ROT1CE) **			11.9	%		6.4	%		9.8	%		9.5	%
Segment Balance Sheet Data
	($ in Thousands)		Corporate and Commercial Specialty		Community, Consumer, and Business			Risk Management and Shared Services			Consolidated Total
2014
Average earning assets		$	8,600,750		$	8,167,003		$	5,992,375		$	22,760,128
Average loans			8,588,847			8,167,003			83,144			16,838,994
Average deposits			4,861,001			10,348,689			2,437,394			17,647,084
Average allocated capital (T1CE) **		$	734,130		$	578,101		$	558,378		$	1,870,609
2013
Average earning assets		$	7,962,250		$	7,706,896		$	5,310,982		$	20,980,128
Average loans			7,952,436			7,706,896			3,813			15,663,145
Average deposits			5,056,710			10,098,159			2,283,326			17,438,195
Average allocated capital (T1CE) **		$	733,862		$	580,019		$	564,490		$	1,878,371
2012
Average earning assets		$	7,066,657		$	7,656,611		$	4,890,509		$	19,613,777
Average loans			7,060,181			7,656,611			24,993			14,741,785
Average deposits			4,196,607			9,857,938			1,527,824			15,582,369
Average allocated capital (T1CE) **		$	688,361		$	605,707		$	544,356		$	1,838,424
* The consolidated credit provision is equal to the actual reported provision for credit losses.
** The Federal Reserve establishes capital adequacy requirements for the Corporation, including Tier 1 capital. Tier 1 capital is comprised of common capital and certain redeemable, non-cumulative preferred stock. Average allocated capital represents average Tier 1 common equity which is defined as average Tier 1 capital excluding qualifying perpetual preferred stock and qualifying trust preferred securities. This is a non-GAAP financial measure. For segment reporting purposes, the ROT1CE reflects return on average allocated Tier 1 common equity ("T1CE"). The ROT1CE for the Risk Management and Shared Services segment and the Consolidated Total is inclusive of the annualized effect of the preferred stock dividends.