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Loans and Leases and the Allowance for Credit Losses - Changes in Allowance for Credit Losses (Detail) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | $ 2,204 | $ 1,998 | $ 2,129 | $ 1,925
Provision for credit losses | 120 | 150 | 470 | 420
Charge-offs | 154 | 122 | 497 | 379
Recoveries | 34 | 26 | 102 | 86
Net charge-offs | (120) | (96) | (395) | (293)
Ending balance | 2,204 | 2,052 | 2,204 | 2,052
Commercial and industrial |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 790 | 583 | 620 | 568
Provision for credit losses | 52 | 40 | 365 | 73
Charge-offs | 64 | 26 | 220 | 70
Recoveries | 14 | 7 | 27 | 33
Net charge-offs | (50) | (19) | (193) | (37)
Ending balance | 792 | 604 | 792 | 604
Commercial Real Estate |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 658 | 694 | 764 | 611
Provision for credit losses | 1 | 79 | (60) | 287
Charge-offs | 24 | 52 | 92 | 180
Recoveries | 4 | 5 | 27 | 8
Net charge-offs | (20) | (47) | (65) | (172)
Ending balance | 639 | 726 | 639 | 726
Residential Real Estate |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 110 | 118 | 116 | 115
Provision for credit losses | (5) | (3) | (11) | (1)
Charge-offs | 1 | 1 | 4 | 4
Recoveries | 1 | 0 | 4 | 4
Net charge-offs | 0 | (1) | 0 | 0
Ending balance | 105 | 114 | 105 | 114
Consumer: |  |  |  |
Accounts Receivable, Allowance for Credit Loss [Roll Forward] |  |  |  |
Beginning balance | 646 | 603 | 629 | 631
Provision for credit losses | 72 | 34 | 176 | 61
Charge-offs | 65 | 43 | 181 | 125
Recoveries | 15 | 14 | 44 | 41
Net charge-offs | (50) | (29) | (137) | (84)
Ending balance | $ 668 | $ 608 | $ 668 | $ 608

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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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