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Acquisitions and Divestitures - Purchase Price Allocation (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jul. 01, 2020 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Consideration paid: |  |  |  |
Purchase accounting gain |  | $ 1 | $ (533) | $ 0
IBERIABANK (IBKC) |  |  |  |
Assets: |  |  |  |
Cash and due from banks | $ 395 |  |  |
Interest-bearing deposits with banks | 1,683 |  |  |
Securities available for sale at fair value | 3,544 |  |  |
Loans held for sale | 320 |  |  |
Loans and leases | 25,921 |  |  |
Allowance for loan and lease losses | (284) |  |  |
Other intangible assets | 240 |  |  |
Premises and equipment | 311 |  |  |
OREO | 9 |  |  |
Other assets | 1,153 |  |  |
Total assets acquired | 33,292 |  |  |
Liabilities: |  |  |  |
Deposits | 28,232 |  |  |
Short-term borrowings | 209 |  |  |
Term borrowings | 1,200 |  |  |
Other liabilities | 618 |  |  |
Total liabilities assumed | 30,259 |  |  |
Net assets acquired | 3,033 |  |  |
Consideration paid: |  |  |  |
Consideration for outstanding common stock | 28 |  |  |
Total consideration paid | 2,502 |  |  |
Purchase accounting gain | (531) |  | $ (533) |
IBERIABANK (IBKC) | Sales-Type And Direct Financing Leases | Commercial |  |  |  |
Assets: |  |  |  |
Loans and leases |  | $ 1,300 |  |
IBERIABANK (IBKC) | Common Sock |  |  |  |
Consideration paid: |  |  |  |
Consideration for outstanding common stock | 2,243 |  |  |
IBERIABANK (IBKC) | Preferred Stock |  |  |  |
Consideration paid: |  |  |  |
Consideration for outstanding common stock | $ 231 |  |  |

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