ACCOUNTING POLICIES - Share-Based Compensation (Details) - Restricted Stock Units	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee
Share-Based Compensation
Vesting period	3 years	3 years	3 years	4 years	4 years	4 years
Percentage of stock awards vesting each year.	33.30%	33.30%
Nonemployee Director
Share-Based Compensation
Vesting period	1 year