Segment Information (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Schedule of segment reporting information

The following tables present the segment information for the Company’s existing segments.

	Three Months Ended March 31, 2018
	Commercial Banking and Wealth		Retail Banking		Corporate and Investment Banking			Treasury			Corporate Support and Other			Consolidated
	(In Thousands)
Net interest income (expense)	$	301,618	$	259,829	$	42,587		$	(4,067	)	$	22,638		$	622,605
Allocated provision (credit) for loan losses	20,407		29,057		(18,209		)	(121		)	25,895			57,029
Noninterest income	61,236		108,752		41,792			6,725			39,320			257,825
Noninterest expense	176,749		286,826		39,610			5,589			54,139			562,913
Net income (loss) before income tax expense (benefit)	165,698		52,698		62,978			(2,810		)	(18,076		)	260,488
Income tax expense (benefit)	34,797		11,066		13,226			(590		)	(6,701		)	51,798
Net income (loss)	130,901		41,632		49,752			(2,220		)	(11,375		)	208,690
Less: net income (loss) attributable to noncontrolling interests	35		—		—			409			17			461
Net income (loss) attributable to BBVA Compass Bancshares, Inc.	$	130,866	$	41,632	$	49,752		$	(2,629	)	$	(11,392	)	$	208,229
Average assets	$	37,667,960	$	18,258,376	$	8,280,917		$	15,898,805		$	7,664,851		$	87,770,909

	Three Months Ended March 31, 2017
	Commercial Banking and Wealth		Retail Banking		Corporate and Investment Banking		Treasury		Corporate Support and Other			Consolidated
	(In Thousands)
Net interest income (expense)	$	270,975	$	223,712	$	35,295	$	23,260	$	(1,809	)	$	551,433
Allocated provision for loan losses	22,191		37,264		5,720		—		14,964			80,139
Noninterest income	49,885		106,569		46,684		6,352		35,197			244,687
Noninterest expense	158,639		292,700		38,760		6,308		52,905			549,312
Net income (loss) before income tax expense (benefit)	140,030		317		37,499		23,304		(34,481		)	166,669
Income tax expense (benefit)	49,010		111		13,125		8,156		(24,556		)	45,846
Net income (loss)	91,020		206		24,374		15,148		(9,925		)	120,823
Less: net income (loss) attributable to noncontrolling interests	23		—		—		416		4			443
Net income (loss) attributable to BBVA Compass Bancshares, Inc.	$	90,997	$	206	$	24,374	$	14,732	$	(9,929	)	$	120,380
Average assets	$	35,814,212	$	17,998,731	$	11,010,571	$	15,180,526	$	7,672,842		$	87,676,882