RETIREMENT AND POST RETIREMENT HEALTH CARE PLANS (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
Sep. 29, 2018	Sep. 30, 2017	Sep. 29, 2018	Sep. 30, 2017	Dec. 30, 2017
Pension and Other Postretirement Benefits Cost (Reversal of Cost) [Abstract]
Estimated net actuarial loss to be amortized from accumulated other comprehensive loss	$ 3.5		$ 3.5
Estimated prior service cost to be amortized from accumulated other comprehensive loss	0.2		0.2
Contribution to defined benefit pension plans	3.3	$ 6.0	10.2	$ 8.2	$ 8.6
Expected total contribution to defined benefit pension plans	$ 11.4		$ 11.4

Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Amount included in accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan expected to be recognized in net periodic benefit (cost) credit for fiscal year following most recent annual statement of financial position.

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Amount included in accumulated other comprehensive (income) loss for prior service cost (credit) expected to be recognized in net periodic benefit cost (credit) for fiscal year following most recent annual statement of financial position.

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Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

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