CREDIT CARD AND OTHER LOANS - Schedule of Information Relating To Credit Card Loans To Borrowers (Details) - Credit Card Loans - Contractual Interest Rate Reduction - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Financing Receivable, Troubled Debt Restructuring [Line Items]
Account balance	$ 89	$ 87	$ 196	$ 182
% of Total credit card loans	0.50%	0.50%	1.10%	1.10%
Weighted average interest rate reduction (% points)	23.50%	22.90%	23.70%	23.00%

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