Quarterly report pursuant to Section 13 or 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) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Fair Value, Measurements, Recurring        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Net gains (losses) from fair value changes $ 10 $ 11 $ (34) $ (23)
Fair Value Measured On Recurring Basis Automobile Loan | Fair Value, Measurements, Recurring        
Fair Value, Option, Quantitative Disclosures [Line Items]        
Net gains (losses) from fair value changes $ 0 $ 0 $ 1 $ 0