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Operating Segment Information (Tables)
 6 Months Ended
Jun. 30, 2019
Segment Reporting Information [Line Items]  
Operating Segment Information OPERATING SEGMENT INFORMATIONWe manage our operations and prepare management reports and other information with a primary focus on geographical area. Our banking operations are managed under their own individual brand names, including Zions
Bank, Amegy Bank, California Bank & Trust, National Bank of Arizona, Nevada State Bank, Vectra Bank Colorado, and The Commerce Bank of Washington. Performance assessment and resource allocation are based upon this geographical structure. We use an internal funds transfer pricing (“FTP”) allocation system to report results of operations for business segments. This process is continually refined. Total average loans and deposits presented for the banking segments include insignificant intercompany amounts between banking segments and may also include deposits with the Other segment.
As of June 30, 2019, our banking business is conducted through 7 locally managed and branded segments in distinct geographical areas. Zions Bank operates 98 branches in Utah, 24 branches in Idaho, and one branch in Wyoming. Amegy operates 74 branches in Texas. CB&T operates 87 branches in California. NBAZ operates 58 branches in Arizona. NSB operates 50 branches in Nevada. Vectra operates 36 branches in Colorado and one branch in New Mexico. TCBW operates two branches in Washington and one branch in Oregon.
The operating segment identified as “Other” includes certain non-bank financial service subsidiaries, centralized back-office functions, and eliminations of transactions between segments. The major components of net interest income at the Bank’s back-office include the revenue associated with the investments securities portfolio and the offset of the FTP costs and benefits provided to the business segments.
The following schedule does not present total assets or income tax expense for each operating segment, but instead presents average loans, average deposits and income before income taxes because these are the metrics that management uses when evaluating performance and making decisions pertaining to the operating segments. The Bank’s net interest income includes interest expense on borrowed funds. The condensed statement of income identifies the components of income and expense which affect the operating amounts presented in the Other segment.
The accounting policies of the individual operating segments are the same as those of the Bank. Transactions between operating segments are primarily conducted at fair value, resulting in profits that are eliminated for reporting consolidated results of operations.
The following schedule presents selected operating segment information for the three months ended June 30, 2019 and 2018:
Zions BankAmegyCB&T
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$179 $176 $132 $127 $140 $131 
Provision for credit losses16 5 (8)(6)9 2 
Net interest income after provision for loan losses
163 171 140 133 131 129 
Noninterest income39 38 34 31 22 19 
Noninterest expense120 117 86 86 82 76 
Income (loss) before income taxes
$82 $92 $88 $78 $71 $72 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$13,067 $12,633 $12,254 $11,387 $10,838 $9,908 
Total average deposits15,455 15,346 11,361 11,060 11,412 11,181 
NBAZ NSBVectra
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$62 $58 $40 $38 $36 $34 
Provision for credit losses2 7 — — 1 2 
Net interest income after provision for loan losses
60 51 40 38 35 32 
Noninterest income11 10 11 10 6 6 
Noninterest expense38 38 37 36 27 25 
Income (loss) before income taxes
$33 $23 $14 $12 $14 $13 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$4,847 $4,640 $2,570 $2,349 $3,105 $2,881 
Total average deposits5,048 4,942 4,406 4,314 2,811 2,784 
TCBW OtherConsolidated Bank
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$14 $12 $(34)$(28)$569 $548 
Provision for credit losses2 1 (1)1 21 12 
Net interest income after provision for loan losses
12 11 (33)(29)548 536 
Noninterest income1 1 8 23 132 138 
Noninterest expense5 5 29 38 424 421 
Income (loss) before income taxes
$8 $7 $(54)$(44)$256 $253 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$1,203 $1,117 $440 $327 $48,324 $45,242 
Total average deposits1,053 1,048 2,801 2,221 54,347 52,896 
The following schedule presents selected operating segment information for the six months ended June 30, 2019 and 2018:
Zions BankAmegyCB&T
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$358 $342 $263 $254 $278 $262 
Provision for loan losses26 3 (23)(59)12 5 
Net interest income after provision for loan losses
332 339 286 313 266 257 
Noninterest income72 73 68 64 41 40 
Noninterest expense237 231 174 173 164 154 
Income (loss) before income taxes
$167 $181 $180 $204 $143 $143 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$13,004 $12,543 $12,058 $11,379 $10,707 $9,919 
Total average deposits15,490 15,211 11,401 10,938 11,328 11,150 
NBAZ NSBVectra
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$122 $111 $80 $73 $72 $66 
Provision for credit losses4 9 (1)— 5 5 
Net interest income after provision for loan losses
118 102 81 73 67 61 
Noninterest income21 19 21 20 12 12 
Noninterest expense78 75 73 72 54 52 
Income (loss) before income taxes
$61 $46 $29 $21 $25 $21 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$4,798 $4,591 $2,535 $2,349 $3,080 $2,837 
Total average deposits4,972 4,863 4,368 4,269 2,816 2,748 
TCBW OtherConsolidated Bank
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$28 $24 $(56)$(42)$1,145 $1,090 
Provision for credit losses2 2 — — 25 (35)
Net interest income after provision for loan losses
26 22 (56)(42)1,120 1,125 
Noninterest income2 3 27 45 264 276 
Noninterest expense11 11 63 72 854 840 
Income (loss) before income taxes
$17 $14 $(92)$(69)$530 $561 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$1,156 $1,135 $412 $301 $47,750 $45,054 
Total average deposits1,064 1,060 2,694 2,208 54,133 52,447 
Schedule of Segment Reporting Information, by Segment
Zions BankAmegyCB&T
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$179 $176 $132 $127 $140 $131 
Provision for credit losses16 5 (8)(6)9 2 
Net interest income after provision for loan losses
163 171 140 133 131 129 
Noninterest income39 38 34 31 22 19 
Noninterest expense120 117 86 86 82 76 
Income (loss) before income taxes
$82 $92 $88 $78 $71 $72 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$13,067 $12,633 $12,254 $11,387 $10,838 $9,908 
Total average deposits15,455 15,346 11,361 11,060 11,412 11,181 
NBAZ NSBVectra
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$62 $58 $40 $38 $36 $34 
Provision for credit losses2 7 — — 1 2 
Net interest income after provision for loan losses
60 51 40 38 35 32 
Noninterest income11 10 11 10 6 6 
Noninterest expense38 38 37 36 27 25 
Income (loss) before income taxes
$33 $23 $14 $12 $14 $13 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$4,847 $4,640 $2,570 $2,349 $3,105 $2,881 
Total average deposits5,048 4,942 4,406 4,314 2,811 2,784 
TCBW OtherConsolidated Bank
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$14 $12 $(34)$(28)$569 $548 
Provision for credit losses2 1 (1)1 21 12 
Net interest income after provision for loan losses
12 11 (33)(29)548 536 
Noninterest income1 1 8 23 132 138 
Noninterest expense5 5 29 38 424 421 
Income (loss) before income taxes
$8 $7 $(54)$(44)$256 $253 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$1,203 $1,117 $440 $327 $48,324 $45,242 
Total average deposits1,053 1,048 2,801 2,221 54,347 52,896 
The following schedule presents selected operating segment information for the six months ended June 30, 2019 and 2018:
Zions BankAmegyCB&T
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$358 $342 $263 $254 $278 $262 
Provision for loan losses26 3 (23)(59)12 5 
Net interest income after provision for loan losses
332 339 286 313 266 257 
Noninterest income72 73 68 64 41 40 
Noninterest expense237 231 174 173 164 154 
Income (loss) before income taxes
$167 $181 $180 $204 $143 $143 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$13,004 $12,543 $12,058 $11,379 $10,707 $9,919 
Total average deposits15,490 15,211 11,401 10,938 11,328 11,150 
NBAZ NSBVectra
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$122 $111 $80 $73 $72 $66 
Provision for credit losses4 9 (1)— 5 5 
Net interest income after provision for loan losses
118 102 81 73 67 61 
Noninterest income21 19 21 20 12 12 
Noninterest expense78 75 73 72 54 52 
Income (loss) before income taxes
$61 $46 $29 $21 $25 $21 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$4,798 $4,591 $2,535 $2,349 $3,080 $2,837 
Total average deposits4,972 4,863 4,368 4,269 2,816 2,748 
TCBW OtherConsolidated Bank
(In millions)2019 2018 2019 2018 2019 2018 
SELECTED INCOME STATEMENT DATA
Net interest income$28 $24 $(56)$(42)$1,145 $1,090 
Provision for credit losses2 2 — — 25 (35)
Net interest income after provision for loan losses
26 22 (56)(42)1,120 1,125 
Noninterest income2 3 27 45 264 276 
Noninterest expense11 11 63 72 854 840 
Income (loss) before income taxes
$17 $14 $(92)$(69)$530 $561 
SELECTED AVERAGE BALANCE SHEET DATA
Total average loans$1,156 $1,135 $412 $301 $47,750 $45,054 
Total average deposits1,064 1,060 2,694 2,208 54,133 52,447