COMMITMENTS AND CONTINGENCIES - Schedule of Allowance for Transaction Losses and Negative Customer Balances (Details) - Protection Programs - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Loss Contingency Accrual | ||||
| Beginning balance | $ 305 | $ 267 | $ 342 | $ 282 |
| Provision | 383 | 259 | 661 | 519 |
| Realized losses and charge-offs | (371) | (286) | (719) | (595) |
| Recoveries | 35 | 30 | 68 | 64 |
| Ending balance | $ 352 | $ 270 | $ 352 | $ 270 |