FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Carried at Fair Value (Details) - USD ($) $ in Millions		Mar. 31, 2022	Dec. 31, 2021
Recurring Basis
ASSETS:
Assets at fair value		$ 11,652	$ 13,315
Recurring Basis | Money market fund investments | Cash Equivalents and Restricted Cash Equivalents
ASSETS:
Assets at fair value		9,691	10,410
Recurring Basis | Time deposits and certificates of deposit | Cash Equivalents and Restricted Cash Equivalents
ASSETS:
Assets at fair value		63	25
Recurring Basis | Debt securities | Short-term Investments
ASSETS:
Assets at fair value		24	25
Recurring Basis | Equity securities | Long-term Investments
ASSETS:
Assets at fair value		1,863	2,850
Recurring Basis | Not Designated as Hedging Instrument | Foreign currency exchange derivatives
ASSETS:
Assets at fair value		11	5
LIABILITIES:
Liabilities at fair value		19	11
Nonrecurring Basis
ASSETS:
Assets at fair value		10	325
LIABILITIES:
Assets held-for-sale	[1]	10
Nonrecurring Basis | Equity securities of private companies | Long-term Investments
ASSETS:
Assets at fair value	[2]		325
Level 1 | Recurring Basis
ASSETS:
Assets at fair value		11,617	13,285
Level 1 | Recurring Basis | Money market fund investments | Cash Equivalents and Restricted Cash Equivalents
ASSETS:
Assets at fair value		9,691	10,410
Level 1 | Recurring Basis | Time deposits and certificates of deposit | Cash Equivalents and Restricted Cash Equivalents
ASSETS:
Assets at fair value		63	25
Level 1 | Recurring Basis | Debt securities | Short-term Investments
ASSETS:
Assets at fair value		0	0
Level 1 | Recurring Basis | Equity securities | Long-term Investments
ASSETS:
Assets at fair value		1,863	2,850
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
ASSETS:
Assets at fair value		0	0
LIABILITIES:
Assets held-for-sale	[1]	0
Level 1 | Nonrecurring Basis | Equity securities of private companies | Long-term Investments
ASSETS:
Assets at fair value	[2]		0
Level 2 | Recurring Basis
ASSETS:
Assets at fair value		35	30
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 | Time deposits and certificates of deposit | Cash Equivalents and Restricted Cash Equivalents
ASSETS:
Assets at fair value		0	0
Level 2 | Recurring Basis | Debt securities | Short-term Investments
ASSETS:
Assets at fair value		24	25
Level 2 | Recurring Basis | Equity securities | 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		11	5
LIABILITIES:
Liabilities at fair value		19	11
Level 2 | Nonrecurring Basis
ASSETS:
Assets at fair value		0	325
LIABILITIES:
Assets held-for-sale	[1]	0
Level 2 | Nonrecurring Basis | Equity securities of private companies | Long-term Investments
ASSETS:
Assets at fair value	[2]		$ 325
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 | Time deposits and certificates of deposit | Cash Equivalents and Restricted Cash Equivalents
ASSETS:
Assets at fair value		0
Level 3 | Recurring Basis | Debt securities | Short-term Investments
ASSETS:
Assets at fair value		0
Level 3 | Recurring Basis | Equity securities | 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
ASSETS:
Assets at fair value		10
LIABILITIES:
Assets held-for-sale	[1]	$ 10

[1] See Note 15 for additional information related to assets held for sale.

[2] During the year ended December 31, 2021, the Company recorded upward adjustments to its investments in equity securities of private companies based on observable price changes in orderly transactions for identical or similar investments of the same issuer (see Note 5).