Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue Recognition and Deferred Revenue [Abstract]

Disaggregation of Revenue

The following schedule presents noninterest income and net revenue by operating segments:

	Zions Bank						Amegy						CB&T
(In millions)	2020		2019		2018		2020		2019		2018		2020		2019		2018
Commercial account fees	$	42	$	41	$	41	$	37	$	34	$	34	$	22	$	23	$	23
Card fees	49		51		50		24		28		29		14		16		15
Retail and business banking fees	21		23		24		15		17		16		11		13		14
Capital markets and foreign exchange fees	(1)		—		—		5		6		6		—		—		—
Wealth management and trust fees	23		17		16		16		12		10		8		4		4
Other customer-related fees	2		2		3		1		1		1		1		2		2
Total noninterest income from contracts with customers (ASC 606)	136		134		134		98		98		96		56		58		58
Other noninterest income (Non-ASC 606 customer related)	23		12		12		34		40		30		36		28		22
Total customer-related fees	159		146		146		132		138		126		92		86		80
Other noninterest income (noncustomer-related)	(1)		1		1		1		—		—		3		2		2
Total noninterest income	158		147		147		133		138		126		95		88		82
Other real estate owned income	—		3		1		—		—		—		1		—		—
Net interest income	650		688		662		485		489		485		512		512		508
Total income less interest expense	$	808	$	838	$	810	$	618	$	627	$	611	$	608	$	600	$	590

	NBAZ						NSB						Vectra
(In millions)	2020		2019		2018		2020		2019		2018		2020		2019		2018
Commercial account fees	$	7	$	7	$	7	$	8	$	8	$	9	$	6	$	6	$	6
Card fees	9		11		11		10		12		12		5		6		6
Retail and business banking fees	8		8		9		9		11		10		4		5		4
Capital markets and foreign exchange fees	—		—		—		—		—		—		—		—		—
Wealth management and trust fees	3		2		2		3		3		3		4		2		2
Other customer-related fees	1		1		1		1		1		1		—		—		—
Total noninterest income from contracts with customers (ASC 606)	28		29		30		31		35		35		19		19		18
Other noninterest income (Non-ASC 606 customer related)	12		12		9		12		8		6		13		7		6
Total customer-related fees	40		41		39		43		43		41		32		26		24
Other noninterest income (noncustomer-related)	1		1		—		—		—		—		—		—		—
Total noninterest income	41		42		39		43		43		41		32		26		24
Other real estate owned income	—		—		—		—		1		—		—		—		—
Net interest income	216		223		216		146		148		142		135		135		130
Total income less interest expense	$	257	$	265	$	255	$	189	$	192	$	183	$	167	$	161	$	154

	TCBW						Other						Consolidated Bank
(In millions)	2020		2019		2018		2020		2019		2018		2020		2019		2018
Commercial account fees	$	1	$	2	$	2	$	2	$	—	$	—	$	125	$	121	$	122
Card fees	1		1		2		1		2		—		113		127		125
Retail and business banking fees	—		—		—		—		1		1		68		78		78
Capital markets and foreign exchange fees	—		—		—		8		7		6		12		13		12
Wealth management and trust fees	1		1		—		1		16		14		59		57		51
Other customer-related fees	—		—		—		19		11		16		25		18		24
Total noninterest income from contracts with customers (ASC 606)	3		4		4		31		37		37		402		414		412
Other noninterest income (Non-ASC 606 customer related)	2		1		1		15		3		10		147		111		96
Total customer-related fees	5		5		5		46		40		47		549		525		508
Other noninterest income (noncustomer-related)	—		—		—		21		33		41		25		37		44
Total noninterest income	5		5		5		67		73		88		574		562		552
Other real estate owned income	—		—		—		—		—		—		1		4		1
Net interest income	52		53		52		20		24		35		2,216		2,272		2,230
Total income less interest expense	$	57	$	58	$	57	$	87	$	97	$	123	$	2,791	$	2,838	$	2,783