INCOME TAXES, Provision for Income Taxes (Details)		12 Months Ended
	Jan. 01, 2018	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Effective income tax rate reconciliation [Abstract]
Federal statutory rate	21.00%	24.50%	35.00%	35.00%
U.S. benefits from research and experimentation activities		(0.80%)	(1.00%)	(3.50%)
State taxes, net of federal effect		0.10%	0.40%	(0.10%)
Foreign income at other than U.S. rates		1.20%	(14.70%)	(16.90%)
Executive compensation		0.40%	0.30%	0.00%
Share-based compensation		(4.30%)	0.10%	0.70%
U.S. tax reform		11.20%	0.00%	0.00%
Domestic production deduction		(0.20%)	(0.00%)	(1.30%)
Other, net		(0.10%)	0.40%	1.10%
Provision for income taxes		32.00%	20.50%	15.00%