SHAREHOLDERS' EQUITY (Common Shares Issued and Outstanding) (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
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)	(92,633)	(93,024)	(92,994)	(93,419)
Shares repurchased (in shares)	(1)	0	(165)	(175)
Shares reissued (in shares)	1	1	526	571
Total treasury shares at end of period (in shares)	(92,633)	(93,023)	(92,633)	(93,023)
Total shares outstanding (in shares)	83,947	83,557	83,947	83,557	83,586