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FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025	Dec. 09, 2025	Jan. 14, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Accumulated gross unrealized gains	$ 3		$ 3		$ 7
Accumulated gross unrealized loss	3		3
Proceeds from sale of available for sale securities	25	$ 14	37	$ 37
Short-term investments	2,081		2,081		2,629
2031 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Convertible senior notes, interest rate (in percent)							3.125%
2033 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Convertible senior notes, interest rate (in percent)						4.90%
Foreign debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Short-term investments	164		164		146
Corporate debt securities
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cost	501		501		392
Amortization	501		501		399
Corporate debt securities \| Significant other observable inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Amortization	0		0		0
Auction Rate Securities \| 2031 Notes \| Significant other observable inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	499		499		501
Auction Rate Securities \| 2033 Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments	751		751		$ 726
Income Statement Location [Axis]: us-gaap:InvestmentIncomeInterest
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Recognized gains in interest income and other financial gains	12	22	22	42
Income Statement Location [Axis]: us-gaap:Revenues
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Recognized gains in interest income and other financial gains	$ 36	$ 136	$ 75	$ 261