RETIREMENT PLANS - Schedule of Accumulated Benefit Obligation, Change in Benefit Obligation, Change in Plan Assets, Plans' Funded Status and Amount Included in Consolidated Balance Sheets (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Benefit Obligation
Accumulated benefit obligation	$ 131	$ 130
Projected benefit obligation at beginning of year	130	172
Acquisition	0	2
Interest cost	7	5	$ 4
Actuarial loss (gain)	5	(37)
Benefits paid	(11)	(12)
Projected benefit obligation at end of year	131	130	172
Fair Value of Plan Assets
Fair value of plan assets at beginning of year	170	201
Actual return on plan assets	17	(21)
Corporation contribution	2	2
Benefits paid	(11)	(12)
Fair value of plan assets at end of year	178	170	201
Funded status of plans	47	40
Qualified Pension Plans
Benefit Obligation
Accumulated benefit obligation	116	114
Projected benefit obligation at beginning of year	114	154
Acquisition	0	0
Interest cost	6	4
Actuarial loss (gain)	5	(34)
Benefits paid	(9)	(10)
Projected benefit obligation at end of year	116	114	154
Fair Value of Plan Assets
Fair value of plan assets at beginning of year	170	201
Actual return on plan assets	17	(21)
Corporation contribution	0	0
Benefits paid	(9)	(10)
Fair value of plan assets at end of year	178	170	201
Funded status of plans	62	56
Non Qualified Pension Plans
Benefit Obligation
Accumulated benefit obligation	15	16
Projected benefit obligation at beginning of year	16	18
Acquisition	0	2
Interest cost	1	1
Actuarial loss (gain)	0	(3)
Benefits paid	(2)	(2)
Projected benefit obligation at end of year	15	16	18
Fair Value of Plan Assets
Fair value of plan assets at beginning of year	0	0
Actual return on plan assets	0	0
Corporation contribution	2	2
Benefits paid	(2)	(2)
Fair value of plan assets at end of year	0	0	$ 0
Funded status of plans	$ (15)	$ (16)