EMPLOYEE BENEFIT PLANS - Schedule of Fair Value and Allocation of Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,648	$ 1,589
Actual % of Plans' Assets	100.00%	100.00%
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 841	$ 763
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	13	32
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Not Classified
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	794	794
Cash and equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 56	$ 31
Actual % of Plans' Assets	3.00%	2.00%
Cash and equivalents | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	0.00%	0.00%
Cash and equivalents | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	5.00%	5.00%
Cash and equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 56	$ 31
Cash and equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0
Equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual % of Plans' Assets	48.00%	45.00%
Equity securities | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	25.00%	25.00%
Equity securities | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	65.00%	65.00%
Common and preferred stock
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 145	$ 134
Common and preferred stock | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	145	134
Common and preferred stock | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Common and preferred stock | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Mutual funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	182	126
Mutual funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	182	126
Mutual funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Mutual funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Exchange traded funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	458	459
Exchange traded funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	458	459
Exchange traded funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Exchange traded funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0
Fixed income
Defined Benefit Plan Disclosure [Line Items]
Actual % of Plans' Assets	45.00%	50.00%
Fixed income | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	30.00%	30.00%
Fixed income | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	65.00%	65.00%
U.S. government and government agency securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 7	$ 17
U.S. government and government agency securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. government and government agency securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	7	17
U.S. government and government agency securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate bonds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	15
Corporate bonds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Corporate bonds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	6	15
Corporate bonds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Exchange traded funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		13
Exchange traded funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		13
Exchange traded funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Exchange traded funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0
Collective investment funds (fixed income)
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	736	753
Collective investment funds (fixed income) | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Collective investment funds (fixed income) | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Collective investment funds (fixed income) | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Collective investment funds (fixed income) | Not Classified
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 736	$ 753
Alternative investments
Defined Benefit Plan Disclosure [Line Items]
Actual % of Plans' Assets	4.00%	3.00%
Alternative investments | Minimum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	0.00%	0.00%
Alternative investments | Maximum
Defined Benefit Plan Disclosure [Line Items]
Weighted Average Target Allocation Pension Plans	30.00%	30.00%
Limited partnerships
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 58	$ 41
Limited partnerships | Not Classified
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 58	$ 41