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VARIABLE INTEREST ENTITIES - Schedule of Affordable Housing Tax Credit Investments (Details) - LIHTC Investments - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Variable Interest Entity [Line Items]
Tax credits included in income tax expense	$ 159	$ 128	$ 101
Amortization expense included in income tax expense	168	137	110
Other tax benefits included in income tax expense	$ 38	$ 32	$ 25

X

- Definition

Amount of affordable housing tax credits and other tax benefits recognized.

+ References

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Amount of amortization expense of investment in qualified affordable housing projects.

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Amount of other income tax expense (benefit).

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