ALLOWANCE FOR CREDIT LOSSES - Credit Card Receivable Aging Analysis (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Financing Receivable, Past Due [Line Items]
On-balance sheet	$ 17,994	$ 8,239
Credit Card Receivable
Financing Receivable, Past Due [Line Items]
On-balance sheet	840	189
Off-balance sheet	200	202
Total credit card loans	$ 1,040	$ 391
% of Total loans	100.00%	100.00%
Credit Card Receivable \| Current
Financing Receivable, Past Due [Line Items]
On-balance sheet	$ 814	$ 186
Off-balance sheet	177	177
Total credit card loans	$ 991	$ 363
% of Total loans	95.00%	93.00%
Credit Card Receivable \| Total Past due receivables
Financing Receivable, Past Due [Line Items]
On-balance sheet	$ 26	$ 3
Off-balance sheet	23	25
Total credit card loans	$ 49	$ 28
% of Total loans	5.00%	7.00%
Credit Card Receivable \| Less than 90 days
Financing Receivable, Past Due [Line Items]
On-balance sheet	$ 18	$ 2
Off-balance sheet	15	15
Total credit card loans	$ 33	$ 17
% of Total loans	3.00%	4.00%
Credit Card Receivable \| ≥ 90 days
Financing Receivable, Past Due [Line Items]
On-balance sheet	$ 8	$ 1
Off-balance sheet	8	10
Total credit card loans	$ 16	$ 11
% of Total loans	2.00%	3.00%

Financing Receivable, After Allowance for Credit Loss, to Total, Percent

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right to consideration is unconditional, classified as current.

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