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COMMITMENTS AND CONTINGENCIES - Tax Matters (Details) € in Millions, $ in Millions	1 Months Ended				12 Months Ended				33 Months Ended
	Nov. 30, 2024 USD ($)	Nov. 30, 2024 EUR (€)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Dec. 31, 2024 USD ($)	Dec. 31, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Aug. 31, 2021 USD ($)	Aug. 31, 2021 EUR (€)	Dec. 31, 2024 EUR (€)	Dec. 31, 2021 USD ($)
Commitments and Contingencies
Unrecognized tax benefits					$ 260		$ 67	$ 184				$ 120
Deferred income tax expense (benefit)					98		$ (478)	$ (257)
Italian Tax Audit
Commitments and Contingencies
Unrecognized tax benefits					34						€ 33
Deferred income tax expense (benefit)					(16)	€ (15)
Payment required to appeal a litigation matter					$ 77	€ 74
Italian Tax Audit | Tax Year 2013 through 2018
Commitments and Contingencies
Tax assessment									$ 260	€ 251
Guardia di Finanza of Rome Tax Audit | Tax Periods June 2017 through December 2023
Commitments and Contingencies
Loss contingency, tax, proposed assessment			$ 410	€ 396
Loss contingency accrual, payments	$ 332	€ 313

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