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VARIABLE INTEREST ENTITIES - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 30, 2022 | Sep. 30, 2021 | Dec. 31, 2021
Variable Interest Entity |  |  |  |  |
Lending to special purpose entities included in loans and leases | $ 154,160,000,000 |  | $ 154,160,000,000 |  | $ 126,405,000,000
Variable Interest Entity, Not Primary Beneficiary |  |  |  |  |
Variable Interest Entity |  |  |  |  |
Lending to special purpose entities included in loans and leases | 3,647,000,000 |  | 3,647,000,000 |  | 2,646,000,000
Affordable housing project investment impairment losses | 0 | $ 0 | 0 | $ 0 |
Variable Interest Entity, Not Primary Beneficiary | Special Purpose Entities |  |  |  |  |
Variable Interest Entity |  |  |  |  |
Lending to special purpose entities included in loans and leases | 3,600,000,000 |  | 3,600,000,000 |  | 2,600,000,000
Commitments to extend credit | Variable Interest Entity, Not Primary Beneficiary | Special Purpose Entities |  |  |  |  |
Variable Interest Entity |  |  |  |  |
Commitment amount | $ 2,400,000,000 |  | $ 2,400,000,000 |  | $ 1,900,000,000

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- Definition Amount of write-down from impairment of an investment in a qualified affordable housing project. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 740 -Section 50 -Paragraph 2 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985 + Details
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- Definition Amortized cost excluding accrued interest, after allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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