EMPLOYEE BENEFIT PLANS - Fair Value of Pension Plan Assets (Details) - Pension Plans - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 1,642	$ 1,600	$ 2,294
Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	1,205	1,485
Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	437	115	$ 122
Equity funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	155	173
Equity funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Equity funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	155	173
Equity funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed income funds
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	70	395
Fixed income funds | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed income funds | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	65	390
Fixed income funds | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	5	5
Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	969	917
Fixed income securities | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed income securities | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	969	917
Fixed income securities | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Private equity fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	38	47
Private equity fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Private equity fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Private equity fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	38	47
Hedge fund
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	67	63
Hedge fund | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Hedge fund | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Hedge fund | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	67	63
Bulk annuity contract
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	327
Bulk annuity contract | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Bulk annuity contract | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0
Bulk annuity contract | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	327
Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16	5
Cash and cash equivalents | Level 1
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Cash and cash equivalents | Level 2
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	16	5
Cash and cash equivalents | Level 3
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0