PENSION AND OTHER POSTRETIREMENT BENEFIT PROGRAMS - Fair Value of Pension Plan Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 2,228	$ 2,350
Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	561	548
Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	750	831
Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	127	155
Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	738	756
Cash
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	52	60
Cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	179	399
Cash equivalents | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Cash equivalents | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	179	399
Cash equivalents | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Cash equivalents | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
U.S. government and government agency issues
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	135	95
U.S. government and government agency issues | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
U.S. government and government agency issues | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	135	95
U.S. government and government agency issues | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
U.S. government and government agency issues | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	357	265
Corporate bonds | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Corporate bonds | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	357	265
Corporate bonds | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Corporate bonds | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	353	344
Common stock | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	353	344
Common stock | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common stock | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common stock | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	199	192
Mutual funds | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	199	192
Mutual funds | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Mutual funds | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Mutual funds | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common/collective trust funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	540	540
Common/collective trust funds | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common/collective trust funds | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common/collective trust funds | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Common/collective trust funds | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	540	540
Partnership investments
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	198	216
Partnership investments | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Partnership investments | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Partnership investments | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	0	0
Partnership investments | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	198	216
Other holdings
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	215	239
Other holdings | Quoted prices in active markets for identical assets (Level 1)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	9	12
Other holdings | Significant other observable inputs (Level 2)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	79	72
Other holdings | Significant unobservable inputs (Level 3)
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	127	155	$ 7
Other holdings | Fair Value, Measured at NAV
Defined Benefit Plan Disclosure [Line Items]
Fair value of pension plan assets	$ 0	$ 0