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FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Schedule of Assets and Liabilities Measured at Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities at fair value $ 49 $ 59
Derivative Instruments 47 41
USDC 0 3
Total Assets 4,832 5,336
Long-term retention program 75 176
Meli Dolar liability 63 61
Derivative Instruments $ 174 $ 83
Derivative Liability, Statement of Financial Position [Extensible Enumeration] Other liabilities Other liabilities
Contingent consideration $ 4 $ 4
Total Liabilities 316 324
U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 1,968 1,982
Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 880 1,661
Corporate debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 501 399
Foreign government debt securities from securitization transactions    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization   8
Money market    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 1,159 856
Restricted cash and cash equivalents 224 259
U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 46
Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 16
Restricted cash and cash equivalents 4 14
Money market funds from securitization transactions    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Restricted cash and cash equivalents 157 206
Quoted Prices in active markets for identical Assets (Level 1)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities at fair value 49 59
Derivative Instruments 0 0
USDC 0 3
Total Assets 4,785 5,295
Long-term retention program 0 0
Meli Dolar liability 0 0
Derivative Instruments 0 0
Contingent consideration 0 0
Total Liabilities 0 0
Quoted Prices in active markets for identical Assets (Level 1) | U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 1,968 1,982
Quoted Prices in active markets for identical Assets (Level 1) | Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 880 1,661
Quoted Prices in active markets for identical Assets (Level 1) | Corporate debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 501 399
Quoted Prices in active markets for identical Assets (Level 1) | Money market    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 1,159 856
Restricted cash and cash equivalents 224 259
Quoted Prices in active markets for identical Assets (Level 1) | U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 46
Quoted Prices in active markets for identical Assets (Level 1) | Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 16
Restricted cash and cash equivalents 4 14
Significant other observable inputs (Level 2)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities at fair value 0 0
Derivative Instruments 47 41
USDC 0 0
Total Assets 47 41
Long-term retention program 75 176
Meli Dolar liability 63 61
Derivative Instruments 174 83
Contingent consideration 0 0
Total Liabilities 312 320
Significant other observable inputs (Level 2) | U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 0 0
Significant other observable inputs (Level 2) | Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 0 0
Significant other observable inputs (Level 2) | Corporate debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 0 0
Significant other observable inputs (Level 2) | Money market    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Restricted cash and cash equivalents 0 0
Significant other observable inputs (Level 2) | U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Significant other observable inputs (Level 2) | Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Restricted cash and cash equivalents 0 0
Unobservable inputs (Level 3)    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Equity securities at fair value 0 0
Derivative Instruments 0 0
USDC 0 0
Total Assets 0 0
Long-term retention program 0 0
Meli Dolar liability 0 0
Derivative Instruments 0 0
Contingent consideration 4 4
Total Liabilities 4 4
Unobservable inputs (Level 3) | U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 0 0
Unobservable inputs (Level 3) | Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 0 0
Unobservable inputs (Level 3) | Corporate debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Amortization 0 0
Unobservable inputs (Level 3) | Money market    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Restricted cash and cash equivalents 0 0
Unobservable inputs (Level 3) | U.S. government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Unobservable inputs (Level 3) | Foreign government debt securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents 0 0
Restricted cash and cash equivalents $ 0 $ 0