TAXES Reconciliation of U.S. Federal Statutory Tax Rate (Details)	9 Months Ended	12 Months Ended
	Dec. 31, 2017	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Statutory rate	35.00%	21.00%	31.60%	35.00%
Effect of U.S. tax reform		(3.50%)	9.90%	0.00%
Net foreign tax on non-U.S. earnings		(0.30%)	0.80%	(0.50%)
Benefit of foreign tax deduction in the U.S.		0.00%	0.00%	2.50%
Foreign earnings indefinitely reinvested abroad		(4.40%)	(8.10%)	(0.80%)
Change in valuation allowance		(15.20%)	1.10%	(25.80%)
Foreign earnings that are currently taxed in the U.S.		(0.70%)	(33.00%)	(28.50%)
Effect of change in foreign statutory corporate income tax rates		0.40%	0.00%	(0.20%)
Impairment of foreign investments		0.00%	11.90%	0.00%
Goodwill impairment		0.00%	0.00%	(1.00%)
Changes in tax reserves		0.70%	(2.30%)	0.60%
Other, net		2.00%	1.60%	(4.00%)
Effective tax rate		0.00%	13.50%	(22.70%)