EMPLOYEE BENEFITS - Changes in the Fair Value of Pension Plan Assets, Projected Benefit Obligation, Funded Status, and Accumulated Benefit Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Qualified Plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets as of January 1	$ 1,281	$ 1,182
Return on plan assets	86	169
Employer contributions	0	0
Settlements	0	0
Benefits and administrative expenses paid	(67)	(70)
Fair value of plan assets as of December 31	1,300	1,281
Projected benefit obligation	828	880
Pension asset (obligation)	472	401
Accumulated benefit obligation	828	880
Non-Qualified Plans
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets as of January 1	0	0
Return on plan assets	0	0
Employer contributions	20	5
Settlements	(11)	0
Benefits and administrative expenses paid	(9)	(5)
Fair value of plan assets as of December 31	0	0
Projected benefit obligation	84	99
Pension asset (obligation)	(84)	(99)
Accumulated benefit obligation	$ 84	$ 99