INCOME TAXES (Effective tax rate reconciliation) (Details)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Jan. 02, 2016
Income Tax Disclosure [Abstract]
U.S. Federal statutory rate	21.00%	35.00%	35.00%	35.00%
State income taxes, net of federal benefit		1.00%	(0.30%)	(0.30%)
Foreign operations		(10.20%)	(8.40%)	(13.10%)
R&D tax credits		(0.90%)	(0.60%)	(1.00%)
Uncertain tax position adjustments		(0.50%)	(2.50%)	(1.50%)
Deferred tax adjustments - restructuring and rate adjustments		(1.20%)	0.30%	1.10%
Valuation allowance on state and foreign deferred tax		(1.20%)	2.40%	4.10%
Purchase of noncontrolling interest		(2.30%)	0.00%	(9.40%)
Share-based compensation		(1.90%)	(1.10%)	0.00%
Realized foreign currency loss impact on effective tax rate		(1.50%)	0.00%	0.00%
Other items		(1.30%)	(1.00%)	(0.30%)
Transition Tax Related to the Tax Cuts and Jobs Act of 2017 effect on percent		18.10%	0.00%	0.00%
Deferred Tax Related to the Tax Cuts and Jobs Act of 2017 effect on percent		(8.30%)	0.00%	0.00%
Effective tax rate		24.80%	23.80%	14.60%

Deferred Tax Related to the Tax Cuts and Jobs Act of 2017 effect on percent

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Effective Income Tax Rate Reconciliation, Purchase of Non-controlling interest

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Effective Income Tax Rate Reconciliation, Restructuring Charges and Changes in Enacted Tax Rate, Percent

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Realized foreign currency loss impact on effective tax rate

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Transition Tax Related to the Tax Cuts and Jobs Act of 2017 effect on percent

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to income tax contingencies. Includes, but not limited to, domestic tax contingency, foreign tax contingency, state and local tax contingency, and other contingencies.

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