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FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Carried at Fair Value (Details) - USD ($) $ in Millions | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Recurring Basis |  |
ASSETS: |  |
Assets at fair value | $ 15,154 | $ 11,917
Recurring Basis | Money market fund investments | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value | 14,390 | 10,871
Recurring Basis | Certificates of deposit | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value | 87 | 97
Recurring Basis | International government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 41 | 63
Recurring Basis | U.S. government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 106 | 151
Recurring Basis | Corporate debt securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 215 | 362
Recurring Basis | Equity securities with readily determinable fair values | Long-term Investments |  |
ASSETS: |  |
Assets at fair value | 295 | 311
Recurring Basis | Not Designated as Hedging Instrument | Foreign currency exchange derivatives |  |
ASSETS: |  |
Assets at fair value | 20 | 62
LIABILITIES: |  |
Liabilities at fair value | 43 | 36
Nonrecurring Basis | Equity securities of private entities | Long-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 98
Level 1 | Recurring Basis |  |
ASSETS: |  |
Assets at fair value | 14,772 | 11,279
Level 1 | Recurring Basis | Money market fund investments | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value | 14,390 | 10,871
Level 1 | Recurring Basis | Certificates of deposit | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value | 87 | 97
Level 1 | Recurring Basis | International government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 0 | 0
Level 1 | Recurring Basis | U.S. government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 0 | 0
Level 1 | Recurring Basis | Corporate debt securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 0 | 0
Level 1 | Recurring Basis | Equity securities with readily determinable fair values | Long-term Investments |  |
ASSETS: |  |
Assets at fair value | 295 | 311
Level 1 | Recurring Basis | Not Designated as Hedging Instrument | Foreign currency exchange derivatives |  |
ASSETS: |  |
Assets at fair value | 0 | 0
LIABILITIES: |  |
Liabilities at fair value | 0 | 0
Level 1 | Nonrecurring Basis | Equity securities of private entities | Long-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 2 | Recurring Basis |  |
ASSETS: |  |
Assets at fair value | 382 | 638
Level 2 | Recurring Basis | Money market fund investments | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value | 0 | 0
Level 2 | Recurring Basis | Certificates of deposit | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value | 0 | 0
Level 2 | Recurring Basis | International government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 41 | 63
Level 2 | Recurring Basis | U.S. government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 106 | 151
Level 2 | Recurring Basis | Corporate debt securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value | 215 | 362
Level 2 | Recurring Basis | Equity securities with readily determinable fair values | Long-term Investments |  |
ASSETS: |  |
Assets at fair value | 0 | 0
Level 2 | Recurring Basis | Not Designated as Hedging Instrument | Foreign currency exchange derivatives |  |
ASSETS: |  |
Assets at fair value | 20 | 62
LIABILITIES: |  |
Liabilities at fair value | $ 43 | 36
Level 2 | Nonrecurring Basis | Equity securities of private entities | Long-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | Money market fund investments | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | Certificates of deposit | Cash Equivalents and Restricted Cash Equivalents |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | International government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | U.S. government securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | Corporate debt securities | Short-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | Equity securities with readily determinable fair values | Long-term Investments |  |
ASSETS: |  |
Assets at fair value |  | 0
Level 3 | Recurring Basis | Not Designated as Hedging Instrument | Foreign currency exchange derivatives |  |
ASSETS: |  |
Assets at fair value |  | 0
LIABILITIES: |  |
Liabilities at fair value |  | 0
Level 3 | Nonrecurring Basis | Equity securities of private entities | Long-term Investments |  |
ASSETS: |  |
Assets at fair value |  | $ 98

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