VARIABLE INTEREST ENTITIES - Schedule of Variable Interest Entities (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Variable Interest Entity
Lending to special purpose entities included in loans and leases	$ 125,713	$ 119,088
LIHTC Investments
Variable Interest Entity
LIHTC investment included in other assets	1,469	1,401
LIHTC unfunded commitments included in other liabilities	754	716
Renewable Energy
Variable Interest Entity
Renewable energy investments included in other assets	414	355
Commercial \| Special Purpose Entities
Variable Interest Entity
Lending to special purpose entities included in loans and leases	$ 1,499	$ 1,101

Amount of investment in renewable energy projects.

No definition available.

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- Definition

Amount of investment in qualified affordable housing projects.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 740
-Section 50
-Paragraph 2
-Subparagraph (b)
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- Definition

Amount, before allowance for credit loss, of financing receivable.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 5
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=119407570&loc=SL82919230-210447

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- Definition

Amount of commitment or contingent commitments to qualified affordable housing project investments.

+ 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 (e)
-URI http://asc.fasb.org/extlink&oid=116633289&loc=SL49122993-202985

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- Definition

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+ References

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