STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement, Noncash Expense [Abstract]

Stock-Based Compensation Cost and Associated Tax Benefit

Presented below is a summary of the stock-based compensation cost and associated tax benefit included in the accompanying consolidated statements of operations:

	Three Months Ended March 31,
	2023		2022
Stock-based compensation cost	$	47	$	46
Tax benefit	$	10	$	11

Weighted Average Assumptions used in Determining Fair Value for Options Granted

The following weighted average assumptions were used in determining the fair value using the Black-Scholes option-pricing model for options granted in 2023:

Expected dividend yield	1.04	%
Expected stock volatility	29	%
Risk-free interest rate	4.18	%
Expected holding period	5.8 years

Stock Option Exercises and Restricted Stock Vesting

The following table summarizes information relating to stock option exercises and restricted stock vesting:

	Three Months Ended March 31,
	2023		2022
Exercise of stock options:
Proceeds from stock option exercises	$	7	$	3
Aggregate intrinsic value	$	15	$	4
Tax benefit realized upon exercise	$	4	$	1
Number of shares exercised (1)	0.1		—
Vesting of restricted stock:
Fair value of shares vested	$	140	$	166
Tax benefit realized upon vesting	$	33	$	39
Number of shares vested	0.5		0.5
Vesting of performance-based restricted stock:
Fair value of shares vested	$	24	$	50
Tax benefit realized upon vesting	$	3	$	7
Number of shares vested	0.1		0.2

(1) The number of options exercised in 2022 was approximately 20 thousand.