FINANCIAL INSTRUMENTS - Schedule of Derivatives Designated as Hedging Instruments (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Prepayments and other current assets	Prepayments and other current assets
Liabilities \| Foreign currency \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Liabilities	$ 1	$ 0
Prepayments And Other Current Assets \| Foreign currency \| Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Assets	$ 3	$ 0

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

- Definition

Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

+ References + Details

PHINIA INC. 10-Q