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FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Fair Value of Financial Assets and Liabilities Measured at Amortized Cost (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024
--- | --- | ---
Reported Value Measurement | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | $ 19,818 | $ 14,069
Reported Value Measurement | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 23,934 | 18,627
Reported Value Measurement | Accounts payable and accrued expenses | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 3,875 | 3,196
Reported Value Measurement | Funds payable to customers | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 9,379 | 6,954
Reported Value Measurement | Amounts payable due to credit and debit card transactions | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 2,631 | 1,964
Reported Value Measurement | Salaries and social security payable | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 556 | 564
Reported Value Measurement | Loans payable and other financial liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 7,188 | 5,593
Reported Value Measurement | Other liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 305 | 356
Reported Value Measurement | Cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 2,056 | 2,059
Reported Value Measurement | Restricted cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 3,573 | 1,298
Reported Value Measurement | Investments | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 153 | 160
Reported Value Measurement | Accounts receivables, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 313 | 255
Reported Value Measurement | Credit cards | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 6,552 | 5,288
Reported Value Measurement | Loans receivable, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 6,884 | 4,895
Reported Value Measurement | Other assets | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 287 | 114
Estimate Of Fair Value Measurement | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 19,738 | 14,014
Estimate Of Fair Value Measurement | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 23,875 | 18,533
Estimate Of Fair Value Measurement | Accounts payable and accrued expenses | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 3,875 | 3,196
Estimate Of Fair Value Measurement | Funds payable to customers | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 9,379 | 6,954
Estimate Of Fair Value Measurement | Amounts payable due to credit and debit card transactions | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 2,631 | 1,964
Estimate Of Fair Value Measurement | Salaries and social security payable | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 556 | 564
Estimate Of Fair Value Measurement | Loans payable and other financial liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 7,129 | 5,499
Estimate Of Fair Value Measurement | Other liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 305 | 356
Estimate Of Fair Value Measurement | Cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 2,056 | 2,059
Estimate Of Fair Value Measurement | Restricted cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 3,573 | 1,298
Estimate Of Fair Value Measurement | Investments | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 153 | 160
Estimate Of Fair Value Measurement | Accounts receivables, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 313 | 255
Estimate Of Fair Value Measurement | Credit cards | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 6,552 | 5,288
Estimate Of Fair Value Measurement | Loans receivable, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 6,804 | 4,840
Estimate Of Fair Value Measurement | Other assets | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | $ 287 | $ 114

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