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AVAILABLE-FOR-SALE DEBT SECURITIES AND EQUITY SECURITIES - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2025	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Equity Securities [Line Items]
Purchase of marketable debt securities	$ 2,000	$ 2,287	$ 244
Marketable debt securities	1,987	1,987		$ 0
Galapagos | Fair Value, Measurements, Recurring
Equity Securities [Line Items]
Marketable equity securities	465	465		462
Arcus | Fair Value, Measurements, Recurring
Equity Securities [Line Items]
Marketable equity securities	$ 256	$ 256		$ 448

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- Definition

Amortized cost excluding accrued interest, after allowance for credit loss, of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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