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Fair Value Measurements (Estimated Fair Values Of Financial Instruments Not Recorded At Fair Value In Their Entirety On A Recurring Basis) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Cash and due from banks |  | $ 1,758 | $ 1,236
Interest-bearing deposits with banks |  | 4,524 | 21,443
Total loans, net of allowance for loan losses |  | 52,792 | 48,697
Demand deposits (noninterest-bearing) |  | 39,945 | 45,800
Customer certificates of deposit |  | 1,762 | 1,973
Other time deposits |  | 124 | 0
Total deposits |  | 71,397 | 82,339
Short-term borrowings |  | 3,211 | 0
Total medium- and long-term debt |  | 3,024 | 2,796
Carrying Amount |  |  |
Cash and due from banks |  | 1,758 | 1,236
Interest-bearing deposits with banks |  | 4,524 | 21,443
Other short-term investments |  | 19 | 16
Loans held-for-sale |  | 2 | 6
Total loans, net of allowance for loan losses | [1] | 52,792 | 48,697
Customers' liability on acceptances outstanding |  | 3 | 5
Restricted equity investments |  | 223 | 92
Nonmarketable equity securities | [2] | 5 | 5
Demand deposits (noninterest-bearing) |  | 39,945 | 45,800
Interest-bearing deposits |  | 29,566 | 34,566
Customer certificates of deposit |  | 1,762 | 1,973
Other time deposits |  | 124 |
Total deposits |  | 71,397 | 82,339
Short-term borrowings |  | 3,211 |
Acceptances outstanding |  | 3 | 5
Total medium- and long-term debt |  | 3,024 | 2,796
Credit-related financial instruments |  | (79) | (59)
Estimated Fair Value |  |  |
Cash and due from banks |  | 1,758 | 1,236
Interest-bearing deposits with banks |  | 4,524 | 21,443
Other short-term investments |  | 19 | 16
Loans held-for-sale |  | 2 | 6
Total loans, net of allowance for loan losses | [1] | 50,964 | 49,127
Customers' liability on acceptances outstanding |  | 3 | 5
Restricted equity investments |  | 223 | 92
Nonmarketable equity securities | [2] | 12 | 10
Demand deposits (noninterest-bearing) |  | 39,945 | 45,800
Interest-bearing deposits |  | 29,566 | 34,566
Customer certificates of deposit |  | 1,719 | 1,968
Other time deposits |  | 124 |
Total deposits |  | 71,354 | 82,334
Short-term borrowings |  | 3,211 |
Acceptances outstanding |  | 3 | 5
Total medium- and long-term debt |  | 3,071 | 2,854
Credit-related financial instruments |  | (79) | (59)
Level 1 | Estimated Fair Value |  |  |
Cash and due from banks |  | 1,758 | 1,236
Interest-bearing deposits with banks |  | 4,524 | 21,443
Other short-term investments |  | 19 | 16
Loans held-for-sale |  | 0 | 0
Total loans, net of allowance for loan losses | [1] | 0 | 0
Customers' liability on acceptances outstanding |  | 3 | 5
Restricted equity investments |  | 223 | 92
Demand deposits (noninterest-bearing) |  | 0 | 0
Interest-bearing deposits |  | 0 | 0
Customer certificates of deposit |  | 0 | 0
Other time deposits |  | 0 |
Total deposits |  | 0 | 0
Short-term borrowings |  | 3,211 |
Acceptances outstanding |  | 3 | 5
Total medium- and long-term debt |  | 0 | 0
Credit-related financial instruments |  | 0 | 0
Level 2 | Estimated Fair Value |  |  |
Cash and due from banks |  | 0 | 0
Interest-bearing deposits with banks |  | 0 | 0
Other short-term investments |  | 0 | 0
Loans held-for-sale |  | 2 | 6
Total loans, net of allowance for loan losses | [1] | 0 | 0
Customers' liability on acceptances outstanding |  | 0 | 0
Restricted equity investments |  | 0 | 0
Demand deposits (noninterest-bearing) |  | 39,945 | 45,800
Interest-bearing deposits |  | 29,566 | 34,566
Customer certificates of deposit |  | 1,719 | 1,968
Other time deposits |  | 124 |
Total deposits |  | 71,354 | 82,334
Short-term borrowings |  | 0 |
Acceptances outstanding |  | 0 | 0
Total medium- and long-term debt |  | 3,071 | 2,854
Credit-related financial instruments |  | 0 | 0
Level 3 | Estimated Fair Value |  |  |
Cash and due from banks |  | 0 | 0
Interest-bearing deposits with banks |  | 0 | 0
Other short-term investments |  | 0 | 0
Loans held-for-sale |  | 0 | 0
Total loans, net of allowance for loan losses | [1] | 50,964 | 49,127
Customers' liability on acceptances outstanding |  | 0 | 0
Restricted equity investments |  | 0 | 0
Demand deposits (noninterest-bearing) |  | 0 | 0
Interest-bearing deposits |  | 0 | 0
Customer certificates of deposit |  | 0 | 0
Other time deposits |  | 0 |
Total deposits |  | 0 | 0
Short-term borrowings |  | 0 |
Acceptances outstanding |  | 0 | 0
Total medium- and long-term debt |  | 0 | 0
Credit-related financial instruments |  | $ (79) | $ (59)
[1] | Included $66 million and $150 million of loans recorded at fair value on a nonrecurring basis at December 31, 2022 and 2021, respectively.
[2] | Certain investments that are measured at fair value using the net asset value have not been classified in the fair value hierarchy. The fair value amounts presented in the table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the Consolidated Balance Sheets.

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