STOCK INCENTIVE PLANS (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Summary of Activity Relating to Restricted Stock Units

The following table summarizes the activity relating to restricted stock units during the periods indicated:

TABLE 18.1

	2023			2022			2021
	Units	Weighted Average Grant Price per Share		Units	Weighted Average Grant Price per Share		Units	Weighted Average Grant Price per Share
Unvested units outstanding at beginning of year	4,821,182	$	10.30	4,680,786	$	9.71	4,322,115	$	9.46
Granted	1,438,195	12.71		1,266,821	13.07		1,113,314	12.65
Acquired	—	—		60,300	9.41		—	—
Net adjustment	191,021	—		575,264	9.58		527,975	10.79
Vested	(2,311,364)	7.03		(1,702,099)	10.57		(1,320,646)	12.07
Forfeited/expired/canceled	(636,436)	8.14		(243,062)	10.88		(143,238)	10.65
Dividend reinvestment	—	—		183,172	12.12		181,266	12.17
Unvested units outstanding at end of year	3,502,598	12.89		4,821,182	10.30		4,680,786	9.71

Schedule of Certain Information Related to Restricted Stock Units

The following table provides certain information related to restricted stock units:

TABLE 18.2

Year Ended December 31	2023		2022		2021
(in millions)
Stock-based compensation expense	$	18	$	22	$	21
Tax benefit related to stock-based compensation expense	4		5		4
Fair value of units vested	18		21		16

Summary of Components of Restricted Stock Units

The components of the restricted stock units as of December 31, 2023 are as follows:

TABLE 18.3

(dollars in millions)	Service- Based Units		Performance- Based Units		Total
Unvested restricted stock units	2,530,664		971,934		3,502,598
Unrecognized compensation expense	$	10	$	—	$	10
Intrinsic value	$	35	$	13	$	48
Weighted average remaining life (in years)	1.76		1.45		1.68

Summary of Activity Related to Stock Options Units

The following table summarizes the activity relating to stock options during the periods indicated:

TABLE 18.4

	2023	Weighted Average Exercise Price per Share		2022	Weighted Average Exercise Price per Share		2021	Weighted Average Exercise Price per Share
Options outstanding at beginning of year	138,381	$	9.32	167,327	$	8.83	196,086	$	8.61
Assumed from acquisitions	—	—		29,396	8.08		—	—
Exercised	(32,292)	7.34		(55,713)	7.23		(28,168)	7.38
Forfeited/expired	(2,399)	8.08		(2,629)	8.22		(591)	6.44
Options outstanding and exercisable at end of year	103,690	9.97		138,381	9.32		167,327	8.83