Credit Quality And Allowance For Credit Losses (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Loan interest receivable	$ 266	$ 313
Financing Receivable, Nonaccrual, Interest Income	16	9	$ 12
Real Estate Acquired Through Foreclosure	4
Commitments to lend additional funds to TDR borrowers	0	0
Financing receivable, modified, past due	10,000,000
Subsequent default during period	13
Commercial borrower \| Business loans \| Domestic loans
Financial Receivable, Troubled Debt Restructuring, Other-than-Insignificant Payment Delays	4	6
Commercial borrower \| Business loans \| International
Financial Receivable, Troubled Debt Restructuring, Other-than-Insignificant Payment Delays	2
Home equity \| Consumer borrower \| Retail loans
Financial Receivable, Troubled Debt Restructuring, Other-than-Insignificant Payment Delays	$ 3
Payment delay
Subsequent default during period		0
Interest Rate Reductions
Subsequent default during period		$ 0

Financial Receivable, Troubled Debt Restructuring, Other-than-Insignificant Payment Delays

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- Definition

Financing receivable, modified, past due

+ References

No definition available.

+ Details

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- Definition

Loan interest receivable

+ References

No definition available.

+ Details

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- Definition

Amortized cost of financing receivable with payment default in current period and modified within previous 12 months preceding payment default for debtor experiencing financial difficulty.

+ References

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- Definition

Amount of interest income on financing receivable on nonaccrual status.

+ References

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- Definition

Amount of commitment to lend additional funds to debtor experiencing financial difficulty for which creditor has modified terms of financing receivable.

+ References

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- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement.

+ References

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