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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	Mar. 31, 2024	Dec. 31, 2023
Reported Value Measurement | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	$ 9,871	$ 9,351
Reported Value Measurement | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	13,771	12,905
Reported Value Measurement | Accounts payable and accrued expenses | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	2,203	2,117
Reported Value Measurement | Funds payable to customers | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	5,059	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	1,352	1,092
Reported Value Measurement | Salaries and social security payable | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	498	441
Reported Value Measurement | Loans payable and other financial liabilities | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	4,342	4,495
Reported Value Measurement | Other liabilities | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	317	285
Reported Value Measurement | Cash and cash equivalents | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	1,403	1,825
Reported Value Measurement | Restricted cash and cash equivalents | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	1,002	898
Reported Value Measurement | Investments | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	35	15
Reported Value Measurement | Accounts receivables, net | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	170	156
Reported Value Measurement | Credit cards | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	3,962	3,632
Reported Value Measurement | Loans receivable, net | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	3,205	2,694
Reported Value Measurement | Other assets | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	94	131
Estimate Of Fair Value Measurement | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	9,866	9,333
Estimate Of Fair Value Measurement | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	13,710	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	2,203	2,117
Estimate Of Fair Value Measurement | Funds payable to customers | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	5,059	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	1,352	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	498	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	4,281	4,441
Estimate Of Fair Value Measurement | Other liabilities | Liabilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Liabilities	317	285
Estimate Of Fair Value Measurement | Cash and cash equivalents | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	1,403	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	1,002	898
Estimate Of Fair Value Measurement | Investments | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	35	15
Estimate Of Fair Value Measurement | Accounts receivables, net | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	170	156
Estimate Of Fair Value Measurement | Credit cards | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	3,962	3,632
Estimate Of Fair Value Measurement | Loans receivable, net | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	3,200	2,676
Estimate Of Fair Value Measurement | Other assets | Assets
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total Assets	$ 94	$ 131

X

- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
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- Definition

Fair value of financial and nonfinancial obligations.

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-Section 50
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