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Loans And The Allowance For Credit Losses (Analysis Of The Allowance For Credit Losses By Portfolio Segment) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2025 | Mar. 31, 2024
Allowance for Loan and Lease Losses [Roll Forward] |  |
Allowance for loan losses, beginning of period | $ 1,613 | $ 1,576
Provision for loan losses | 123 | 162
Loan Losses: |  |
Charge-offs | (145) | (141)
Recoveries | 22 | 20
Net loan losses | (123) | (121)
Allowance for loan losses, end of period | 1,613 | 1,617
Reserve For Unfunded Credit Commitments [Roll Forward] |  |
Reserve for unfunded credit commitments, beginning of year | 116 | 124
Provision (credit) for unfunded credit losses | 1 | (10)
Reserve for unfunded credit commitments, end of year | 117 | 114
Allowance for credit losses | 1,730 | 1,731
Commercial |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Allowance for loan losses, beginning of period | 743 | 722
Provision for loan losses | 49 | 88
Loan Losses: |  |
Charge-offs | (59) | (62)
Recoveries | 12 | 8
Net loan losses | (47) | (54)
Allowance for loan losses, end of period | 745 | 756
Reserve For Unfunded Credit Commitments [Roll Forward] |  |
Reserve for unfunded credit commitments, beginning of year | 91 | 92
Provision (credit) for unfunded credit losses | 0 | (5)
Reserve for unfunded credit commitments, end of year | 91 | 87
Allowance for credit losses | 836 | 843
Investor Real Estate |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Allowance for loan losses, beginning of period | 240 | 192
Provision for loan losses | 18 | 23
Loan Losses: |  |
Charge-offs | (22) | (5)
Recoveries | 0 | 1
Net loan losses | (22) | (4)
Allowance for loan losses, end of period | 236 | 211
Reserve For Unfunded Credit Commitments [Roll Forward] |  |
Reserve for unfunded credit commitments, beginning of year | 7 | 13
Provision (credit) for unfunded credit losses | 1 | (3)
Reserve for unfunded credit commitments, end of year | 8 | 10
Allowance for credit losses | 244 | 221
Consumer |  |
Allowance for Loan and Lease Losses [Roll Forward] |  |
Allowance for loan losses, beginning of period | 630 | 662
Provision for loan losses | 56 | 51
Loan Losses: |  |
Charge-offs | (64) | (74)
Recoveries | 10 | 11
Net loan losses | (54) | (63)
Allowance for loan losses, end of period | 632 | 650
Reserve For Unfunded Credit Commitments [Roll Forward] |  |
Reserve for unfunded credit commitments, beginning of year | 18 | 19
Provision (credit) for unfunded credit losses | 0 | (2)
Reserve for unfunded credit commitments, end of year | 18 | 17
Allowance for credit losses | $ 650 | $ 667

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- Definition Financing Receivable, Allowance for Credit Loss, Including Unfunded Credit Commitments Excluding Accrued Interest + References No definition available. + Details
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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- Definition Amount, excluding accrued interest, of increase in allowance for credit loss on financing receivable from recovery. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479319/326-20-50-13 + Details
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