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LOANS RECEIVABLE, NET - Summary of Loans Receivable, Net (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024	Jun. 30, 2024	Dec. 31, 2023
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	$ 9,347	$ 6,573
Allowance for doubtful accounts	(2,463)	(1,678)	$ (1,353)	$ (1,084)
Loans receivable, net	6,884	4,895
Merchant
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	1,595	1,205
Allowance for doubtful accounts	(598)	(417)	(312)	(256)
Loans receivable, net	997	788
Consumer
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	3,525	2,591
Allowance for doubtful accounts	(948)	(696)	(678)	(591)
Loans receivable, net	2,577	1,895
Credit cards
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	4,013	2,639
Allowance for doubtful accounts	(903)	(557)	(359)	(236)
Loans receivable, net	3,110	2,082
Asset-backed
Loans and Leases Receivable Disclosure [Line Items]
Loans receivable	214	138
Allowance for doubtful accounts	(14)	(8)	$ (4)	$ (1)
Loans receivable, net	$ 200	$ 130

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