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v3.22.0.1

Business Segment Information - Amounts of Consolidated Revenue, Expense, Tax and Assets (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 01, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Segment Reporting Information [Line Items] |  |  |  |
Net interest income (expense) |  | $ 1,994 | $ 1,662 | $ 1,210
Provision for credit losses |  | (310) | 503 | 45
Noninterest income |  | 1,076 | 1,492 | 654
Noninterest expense |  | 2,096 | 1,718 | 1,233
Income before income taxes |  | 1,284 | 933 | 586
Income tax expense (benefit) |  | 274 | 76 | 134
Net income (loss) |  | 1,010 | 857 | 452
Average assets |  | 87,609 | 64,346 | 41,744
Depreciation and amortization |  | 28 | 46 | 65
Expenditures for long-lived assets |  | 37 | 379 | 49
Purchase accounting gain |  | (1) | 533 | 0
Long-lived asset impairment |  |  |  | 13
Expenses associated with rebranding initiatives |  |  |  | 25
Charitable foundation contributions |  |  | 41 | 11
Parent Company |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Provision for credit losses |  | 0 | 0 | (1)
Income before income taxes |  | 624 | 87 | 264
Income tax expense (benefit) |  | (35) | (18) | (19)
Depreciation and amortization |  | 0 | 0 | (1)
Visa Class B Shares |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Derivative valuation adjustment |  | 19 |  |
IBERIABANK (IBKC) |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Purchase accounting gain | $ 531 |  | 533 |
Regional Banking |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income (expense) |  | 1,764 | 1,264 | 833
Provision for credit losses |  | (229) | 392 | 24
Noninterest income |  | 438 | 345 | 293
Noninterest expense |  | 1,151 | 944 | 678
Income before income taxes |  | 1,280 | 273 | 424
Income tax expense (benefit) |  | 298 | 56 | 97
Net income (loss) |  | 982 | 217 | 327
Average assets |  | 45,445 | 32,782 | 18,236
Depreciation and amortization |  | (71) | (42) | 22
Expenditures for long-lived assets |  | 27 | 283 | 29
Purchase accounting gain |  | 0 | 0 |
Specialty Banking |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income (expense) |  | 619 | 572 | 389
Provision for credit losses |  | (64) | 116 | 37
Noninterest income |  | 597 | 576 | 315
Noninterest expense |  | 571 | 494 | 347
Income before income taxes |  | 709 | 538 | 320
Income tax expense (benefit) |  | 171 | 131 | 79
Net income (loss) |  | 538 | 407 | 241
Average assets |  | 20,803 | 19,822 | 15,517
Depreciation and amortization |  | (2) | 4 | 14
Expenditures for long-lived assets |  | 3 | 6 | 4
Purchase accounting gain |  | 0 | 0 |
Corporate |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net interest income (expense) |  | (389) | (174) | (12)
Provision for credit losses |  | (17) | (5) | (16)
Noninterest income |  | 41 | 571 | 46
Noninterest expense |  | 374 | 280 | 208
Income before income taxes |  | (705) | 122 | (158)
Income tax expense (benefit) |  | (195) | (111) | (42)
Net income (loss) |  | (510) | 233 | (116)
Average assets |  | 21,361 | 11,742 | 7,991
Depreciation and amortization |  | 101 | 84 | 29
Expenditures for long-lived assets |  | 7 | 90 | 16
Purchase accounting gain |  | (1) | 533 |
Long-lived asset impairment |  | 37 | $ 13 |
Corporate | Visa Class B Shares |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Derivative valuation adjustment |  | $ 19 |  | $ 4

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