The number of bank branches to the acquired entity operated prior to the acquisition.

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- Definition

Number Of New Series Of Preferred Stock

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- Definition

Number Of Offices

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Value of equity interests (such as common shares, preferred shares, or partnership interest) issued or issuable to acquire the entity.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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In a business combination in which the amount of net identifiable assets acquired and liabilities assumed exceeds the aggregate consideration transferred or to be transferred (as defined), this element represents the amount of gain recognized by the entity.

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Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The number of states the entity operates in as of the balance sheet date.

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No definition available.

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Acquisitions and Divestitures - Narrative (Details) $ in Millions		3 Months Ended	12 Months Ended
	Jul. 01, 2020 USD ($) state numberNewPreferredStockSeries office shares	Mar. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) shares	Jul. 17, 2020 branch	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)
Business Acquisition [Line Items]
Number of common stock issued \| shares	243,000,000	552,374,489	555,030,652
Number of new series of preferred stock \| numberNewPreferredStockSeries	3
Goodwill		$ 1,511.0	$ 1,511.0		$ 1,511.0	$ 1,433.0
IBERIABANK (IBKC)
Business Acquisition [Line Items]
Purchase accounting gain	$ 534.0	1.0	533.0
Goodwill	(534.0)
Truist Bank Branches
Business Acquisition [Line Items]
Goodwill		$ 78.0	$ 78.0
Number of bank branches \| branch				30
IBERIABANK (IBKC)
Business Acquisition [Line Items]
Equity interest issued, value assigned	$ 2,500.0
Number of offices \| office	319
Number of states \| state	12