COMMITMENTS AND CONTINGENCIES 7 (Details) - $ / claims	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Resolution Values Per Claim [Line Items]
Malignant claims	61,500	50,200	55,300	56,000	44,000
Nonmalignant claims	550	3,900	4,700	2,800	4,485