Operating Segment Information (Tables)

6 Months Ended

Jun. 30, 2014

Operating Segment Information [Abstract]

Schedule of Segment Reporting Information, by Segment

(In millions)	Zions Bank						CB&T						Amegy						NBAZ						NSB
	2014			2013			2014			2013			2014			2013			2014			2013			2014			2013
CONDENSED INCOME STATEMENT
Net interest income	$	145.6		$	150.8		$	103.7		$	122.6		$	95.4		$	94.0		$	40.3		$	41.4		$	28.3		$	28.6
Provision for loan losses	(15.4		)	(10.7		)	(12.9		)	(3.0		)	(7.5		)	5.7			(8.0		)	(4.7		)	(5.7		)	(8.7		)
Net interest income after provision for loan losses	161.0			161.5			116.6			125.6			102.9			88.3			48.3			46.1			34.0			37.3
Net impairment losses on investment securities	—			—			—			—			—			—			—			—			—			—
Other noninterest income	50.2			54.2			13.8			19.7			36.3			35.5			8.3			8.8			8.9			9.7
Noninterest expense	121.1			128.0			82.4			94.5			92.5			91.9			38.9			35.4			34.0			34.2
Income (loss) before income taxes	90.1			87.7			48.0			50.8			46.7			31.9			17.7			19.5			8.9			12.8
Income tax expense (benefit)	33.2			32.1			19.0			19.9			15.9			10.6			6.6			7.4			3.0			4.4
Net income (loss)	$	56.9		$	55.6		$	29.0		$	30.9		$	30.8		$	21.3		$	11.1		$	12.1		$	5.9		$	8.4
AVERAGE BALANCE SHEET DATA
Total assets	$	17,593		$	17,522		$	11,044		$	10,823		$	13,618		$	13,215		$	4,696		$	4,620		$	4,073		$	4,064
Cash and due from banks	336			352			156			165			213			273			73			71			83			82
Money market investments	2,678			2,949			1,252			1,237			2,435			2,676			413			433			765			956
Total securities	1,747			1,311			237			334			260			313			371			300			787			780
Total loans	12,317			12,363			8,655			8,287			9,563			8,790			3,648			3,612			2,318			2,124
Total deposits	15,320			15,234			9,395			9,231			11,165			10,798			4,014			3,918			3,676			3,625
Shareholder’s equity:
Preferred equity	280			280			162			162			227			251			98			180			50			113
Common equity	1,552			1,533			1,368			1,319			1,873			1,776			454			407			324			304
Noncontrolling interests	—			—			—			—			—			—			—			—			—			—
Total shareholder’s equity	1,832			1,813			1,530			1,481			2,100			2,027			552			587			374			417
	Vectra						TCBW						Other						Consolidated Company
	2014			2013			2014			2013			2014			2013			2014			2013
CONDENSED INCOME STATEMENT
Net interest income	$	25.4		$	25.1		$	7.3		$	6.8		$	(29.7	)	$	(38.6	)	$	416.3		$	430.7
Provision for loan losses	(4.5		)	(0.8		)	(0.4		)	0.1			—			0.1			(54.4		)	(22.0		)
Net interest income after provision for loan losses	29.9			25.9			7.7			6.7			(29.7		)	(38.7		)	470.7			452.7
Net impairment losses on investment securities	—			—			—			—			—			(4.2		)	—			(4.2		)
Other noninterest income	5.9			6.1			1.0			1.0			0.5			(5.7		)	124.9			129.3
Noninterest expense	23.7			25.5			5.0			3.9			8.4			38.3			406.0			451.7
Income (loss) before income taxes	12.1			6.5			3.7			3.8			(37.6		)	(86.9		)	189.6			126.1
Income tax expense (benefit)	4.3			2.1			1.3			1.3			(13.3		)	(34.7		)	70.0			43.1
Net income (loss)	$	7.8		$	4.4		$	2.4		$	2.5		$	(24.3	)	$	(52.2	)	$	119.6		$	83.0
AVERAGE BALANCE SHEET DATA
Total assets	$	2,595		$	2,529		$	869		$	836		$	548		$	1,055		$	55,036		$	54,664
Cash and due from banks	47			50			21			19			(7		)	(12		)	922			1,000
Money market investments	18			78			94			103			(154		)	220			7,501			8,652
Total securities	158			184			74			107			389			539			4,023			3,868
Total loans	2,316			2,138			665			595			62			62			39,544			37,971
Total deposits	2,184			2,165			734			703			(1,030		)	(689		)	45,458			44,985
Shareholder’s equity:
Preferred equity	42			70			3			3			142			460			1,004			1,519
Common equity	283			237			92			84			(201		)	(558		)	5,745			5,102
Noncontrolling interests	—			—			—			—			—			(3		)	—			(3		)
Total shareholder’s equity	325			307			95			87			(59		)	(101		)	6,749			6,618