PENSION AND OTHER POSTRETIREMENT BENEFITS - Pre-tax Amount Recognized in Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	Jan. 01, 2022	Jan. 02, 2021
U.S.
Pretax amounts recognized in accumulated other comprehensive loss
Net actuarial loss	$ 15.6	$ 18.2
Net amount recognized in accumulated other comprehensive loss	15.6	18.2
International
Pretax amounts recognized in accumulated other comprehensive loss
Net actuarial loss	41.5	83.3
Prior service (credit) cost	(4.0)	(3.9)
Net amount recognized in accumulated other comprehensive loss	$ 37.5	$ 79.4

Amount, before tax, of accumulated other comprehensive (income) loss for defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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Amount, before tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount, before tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit).

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