COMMITMENTS AND CONTINGENCIES 7 (Details) - $ / claims	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Resolution Values Per Claim [Line Items]
Malignant claims	50,200	55,300	56,000	44,000	44,000
Nonmalignant claims	3,900	4,700	2,800	4,485	100