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- Definition

Financing Receivable, Past Due Threshold Period For Nonaccrual Status

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Proceeds from Merger Contract Termination

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- Definition

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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- Definition

Costs incurred to effect a business combination which have been expensed during the period. Such costs could include business integration costs, systems integration and conversion costs, and severance and other employee-related costs.

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No definition available.

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- Definition

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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Indicates line item in statement of financial position that includes accrued interest, after allowance for credit loss, on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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- Definition

Amount of accumulated undistributed earnings (deficit).

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Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions		12 Months Ended
	May 04, 2023	Dec. 31, 2023	Dec. 31, 2022	Jan. 01, 2024	Jan. 01, 2023	Dec. 31, 2021	Dec. 31, 2020
Change in Accounting Estimate [Line Items]
Debt Securities, Available-for-Sale, Accrued Interest, after Allowance for Credit Loss, Statement of Financial Position [Extensible Enumeration]		Other assets	Other assets
Past due threshold period for nonaccrual status		90 days
Allowance for loan and lease losses		$ (773)	$ (685)			$ (670)	$ (963)
Retained earnings		$ 3,964	3,430
Accounting Standards Update 2022-02
Change in Accounting Estimate [Line Items]
Allowance for loan and lease losses			6		$ 6
Retained earnings					$ 4
Accounting Standards Update 2023-02 \| Subsequent Event
Change in Accounting Estimate [Line Items]
Retained earnings				$ 8
Furniture and Fixtures \| Minimum
Change in Accounting Estimate [Line Items]
Useful life of premises and equipment		3 years
Furniture and Fixtures \| Maximum
Change in Accounting Estimate [Line Items]
Useful life of premises and equipment		15 years
Building \| Minimum
Change in Accounting Estimate [Line Items]
Useful life of premises and equipment		7 years
Building \| Maximum
Change in Accounting Estimate [Line Items]
Useful life of premises and equipment		45 years
Deposit Bases
Change in Accounting Estimate [Line Items]
Intangible assets, amortization period		10 years
Non-Accruing
Change in Accounting Estimate [Line Items]
Accounts receivable, net		$ 13	12
TD Transaction
Change in Accounting Estimate [Line Items]
Proceeds from merger contract termination	$ 200
Fee reimbursement received	$ 25
TD Merger Agreement
Change in Accounting Estimate [Line Items]
Merger and integration expense		$ 51	$ 87