SHAREHOLDERS' EQUITY (Common Shares Issued and Outstanding) (Details) - shares shares in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, balance at beginning of period (in shares)			176,580
Total shares issued at end of period (in shares)	176,580		176,580
Treasury shares, balance at beginning of period (in shares)			(92,227)
Total treasury shares at end of period (in shares)	(91,813)		(91,813)
Total shares outstanding (in shares)	84,767		84,767		84,353
Common stocks
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued, balance at beginning of period (in shares)	176,580	176,580	176,580	176,580
Shares issued (in shares)	0	0	0	0
Total shares issued at end of period (in shares)	176,580	176,580	176,580	176,580
Treasury shares, balance at beginning of period (in shares)	(91,827)	(92,282)	(92,227)	(92,621)
Shares repurchased (in shares)	(8)	(3)	(197)	(153)
Shares reissued (in shares)	22	11	611	500
Total treasury shares at end of period (in shares)	(91,813)	(92,274)	(91,813)	(92,274)
Total shares outstanding (in shares)	84,767	84,306	84,767	84,306