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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 | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Cash and due from banks |  | $ 1,239 | $ 850
Interest-bearing deposits with banks |  | 4,049 | 5,954
Total deposits |  | 60,003 | 63,811
Medium- and long-term debt |  | 5,762 | 6,673
Carrying Amount |  |  |
Cash and due from banks |  | 1,239 | 850
Interest-bearing deposits with banks |  | 4,049 | 5,954
Other short-term investments |  | 21 | 21
Total loans | [1] | 50,481 | 49,849
Demand Deposit Accounts |  | 56,188 | 59,277
Time Deposits |  | 3,815 | 4,534
Total deposits |  | 60,003 | 63,811
Medium- and long-term debt |  | 5,762 | 6,673
Short-term borrowings |  | 2,925 |
Credit-related financial instruments |  | (62) | (64)
Estimated Fair Value |  |  |
Cash and due from banks |  | 1,239 | 850
Interest-bearing deposits with banks |  | 4,049 | 5,954
Other short-term investments |  | 21 | 21
Total loans | [1] | 50,457 | 49,436
Demand Deposit Accounts |  | 56,188 | 59,277
Time Deposits |  | 3,811 | 4,555
Total deposits |  | 59,999 | 63,832
Medium- and long-term debt |  | 5,849 | 6,780
Short-term borrowings |  | 2,925 |
Credit-related financial instruments |  | (62) | (64)
Level 1 | Estimated Fair Value |  |  |
Cash and due from banks |  | 1,239 | 850
Interest-bearing deposits with banks |  | 4,049 | 5,954
Other short-term investments |  | 21 | 21
Total loans | [1] | 0 | 0
Demand Deposit Accounts |  | 0 | 0
Time Deposits |  | 0 | 0
Total deposits |  | 0 | 0
Medium- and long-term debt |  | 0 | 0
Short-term borrowings |  | 2,925 |
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
Total loans | [1] | 0 | 0
Demand Deposit Accounts |  | 56,188 | 59,277
Time Deposits |  | 3,811 | 4,555
Total deposits |  | 59,999 | 63,832
Medium- and long-term debt |  | 5,849 | 6,780
Short-term borrowings |  | 0 |
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
Total loans | [1] | 50,457 | 49,436
Demand Deposit Accounts |  | 0 | 0
Time Deposits |  | 0 | 0
Total deposits |  | 0 | 0
Medium- and long-term debt |  | 0 | 0
Short-term borrowings |  | 0 |
Credit-related financial instruments |  | (62) | (64)
Nonrecurring | Level 3 |  |  |
Total loans |  | $ 88 | $ 158
[1] | Included $88 million and $158 million of loans recorded at fair value on a nonrecurring basis at June 30, 2025 and December 31, 2024, respectively.

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- Definition Value of credit-related financial instruments included in accrued expenses and other liabilities, including unused commitments to extend credit, letters of credit and financial guarantees. Includes the allowance for credit losses on lending-related commitments and the current amortized value of the guarantee liability recognized at fair value at inception of the commitment. + References No definition available. + Details
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- Definition Fair value portion of loan receivable, including, but not limited to, mortgage loans held for investment, finance receivables held for investment, policy loans on insurance contracts. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name Accounting Standards Codification -Section 55 -Paragraph 10 -SubTopic 10 -Topic 825 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482881/825-10-55-10 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482881/825-10-55-12 + Details
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