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FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended		6 Months Ended
	Jan. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Derivative [Line Items]
Debt securities, available-for-sale, term		5 years		5 years		5 years
Cumulative upward adjustments		$ 229		$ 229
Cumulative impairment amount		140		140
Pre-tax gains				156
Cross-currency swap contracts
Derivative [Line Items]
Recognized in Other comprehensive income/(loss)		70	$ (18)	94	$ (34)
Forward interest rate contracts \| Cash Flow Hedging
Derivative [Line Items]
Derivative, notional amount	$ 5,000
Recognized in Other comprehensive income/(loss)	$ 131
Designated as cash flow hedges \| Cross-currency swap contracts \| Cash Flow Hedging
Derivative [Line Items]
Derivative, notional amount		584		584
Designated as cash flow hedges \| Cross-currency swap contracts \| Net Investment Hedging
Derivative [Line Items]
Derivative, notional amount		707		707
Designated as cash flow hedges \| Euro Member Countries, Euro \| Foreign currency exchange contracts
Derivative [Line Items]
Derivative, notional amount		4,500		4,500
Designated as cash flow hedges \| Euro Member Countries, Euro \| Cross-currency swap contracts \| Net Investment Hedging
Derivative [Line Items]
Derivative, notional amount		345		345
Designated as cash flow hedges \| Japan, Yen \| Foreign currency exchange contracts
Derivative [Line Items]
Derivative, notional amount		1,200		1,200
Designated as cash flow hedges \| Japan, Yen \| Cross-currency swap contracts \| Net Investment Hedging
Derivative [Line Items]
Derivative, notional amount		$ 362		$ 362