PENSION AND OTHER POSTRETIREMENT BENEFITS - Plan Assets Measured at Fair Value (Details) - Pension Benefits - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	$ 2,352	$ 2,507	$ 2,363
Fair Value, Recurring
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	1,668	1,739
Fair Value, Recurring | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	(60)	69
Fair Value, Recurring | U.S. treasury securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	140	107
Fair Value, Recurring | Government-related securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	117	129
Fair Value, Recurring | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	1,138	1,164
Fair Value, Recurring | Mortgage-backed and asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	156	128
Fair Value, Recurring | U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	43	89
Fair Value, Recurring | U.S. small capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	67	18
Fair Value, Recurring | Non-U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	25
Fair Value, Recurring | Non-U.S. small capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	2
Fair Value, Recurring | Exchange Traded Fund (ETF)
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	32	27
Fair Value, Recurring | Other
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	8	8
Fair Value, Recurring | Level 1
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	309	241
Fair Value, Recurring | Level 1 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 1 | U.S. treasury securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	140	107
Fair Value, Recurring | Level 1 | Government-related securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 1 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 1 | Mortgage-backed and asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 1 | U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	43	89
Fair Value, Recurring | Level 1 | U.S. small capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	67	18
Fair Value, Recurring | Level 1 | Non-U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	25
Fair Value, Recurring | Level 1 | Non-U.S. small capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	2
Fair Value, Recurring | Level 1 | Exchange Traded Fund (ETF)
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	32	27
Fair Value, Recurring | Level 1 | Other
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 2
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	1,359	1,498
Fair Value, Recurring | Level 2 | Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	(60)	69
Fair Value, Recurring | Level 2 | U.S. treasury securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 2 | Government-related securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	117	129
Fair Value, Recurring | Level 2 | Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	1,138	1,164
Fair Value, Recurring | Level 2 | Mortgage-backed and asset-backed securities
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	156	128
Fair Value, Recurring | Level 2 | U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 2 | U.S. small capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 2 | Non-U.S. large capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0
Fair Value, Recurring | Level 2 | Non-U.S. small capitalization
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0
Fair Value, Recurring | Level 2 | Exchange Traded Fund (ETF)
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	0	0
Fair Value, Recurring | Level 2 | Other
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	8	8
Fair Value, Recurring | Net Asset Value | Common collective funds
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	626	676
Fair Value, Recurring | Net Asset Value | Limited partnerships
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	11	10
Fair Value, Recurring | Net Asset Value | Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Investments, at fair value	$ 47	$ 82