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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 | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Reported Value Measurement | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | $ 12,239 | $ 9,351
Reported Value Measurement | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 16,685 | 12,905
Reported Value Measurement | Accounts payable and accrued expenses | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 2,940 | 2,117
Reported Value Measurement | Funds payable to customers | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 5,854 | 4,475
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 | 1,716 | 1,092
Reported Value Measurement | Salaries and social security payable | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 532 | 441
Reported Value Measurement | Loans payable and other financial liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 5,252 | 4,495
Reported Value Measurement | Other liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 391 | 285
Reported Value Measurement | Cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 1,860 | 1,825
Reported Value Measurement | Restricted cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 923 | 898
Reported Value Measurement | Investments | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 84 | 15
Reported Value Measurement | Accounts receivables, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 216 | 156
Reported Value Measurement | Credit cards | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 4,585 | 3,632
Reported Value Measurement | Loans receivable, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 4,404 | 2,694
Reported Value Measurement | Other assets | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 167 | 131
Estimate Of Fair Value Measurement | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 12,222 | 9,333
Estimate Of Fair Value Measurement | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 16,619 | 12,851
Estimate Of Fair Value Measurement | Accounts payable and accrued expenses | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 2,940 | 2,117
Estimate Of Fair Value Measurement | Funds payable to customers | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 5,854 | 4,475
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 | 1,716 | 1,092
Estimate Of Fair Value Measurement | Salaries and social security payable | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 532 | 441
Estimate Of Fair Value Measurement | Loans payable and other financial liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 5,186 | 4,441
Estimate Of Fair Value Measurement | Other liabilities | Liabilities |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Liabilities | 391 | 285
Estimate Of Fair Value Measurement | Cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 1,860 | 1,825
Estimate Of Fair Value Measurement | Restricted cash and cash equivalents | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 923 | 898
Estimate Of Fair Value Measurement | Investments | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 84 | 15
Estimate Of Fair Value Measurement | Accounts receivables, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 216 | 156
Estimate Of Fair Value Measurement | Credit cards | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 4,585 | 3,632
Estimate Of Fair Value Measurement | Loans receivable, net | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | 4,387 | 2,676
Estimate Of Fair Value Measurement | Other assets | Assets |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Total Assets | $ 167 | $ 131

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