Annual report pursuant to Section 13 and 15(d)

FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option-Changes in Fair Value (Details)

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FAIR VALUES OF ASSETS AND LIABILITIES - Fair Value Option-Changes in Fair Value (Details) - Fair Value, Recurring - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Loans held for sale      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Net gains (losses) from fair value changes $ (26) $ (31) $ 38
Loans held for investment      
Fair Value, Option, Quantitative Disclosures [Line Items]      
Net gains (losses) from fair value changes $ 1 $ (1) $ 1