ACCUMULATED OTHER COMPREHENSIVE LOSS - Reclassifications out of AOCI (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 27, 2020	Mar. 28, 2020	Jun. 29, 2019	Mar. 30, 2019	Jun. 27, 2020	Jun. 29, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of sales	$ 2,134.7		$ 2,461.5		$ 4,241.0	$ 4,689.5
Interest expense	57.3		72.4		117.0	146.8
Income taxes	117.3		(51.6)		104.4	(76.3)
Net earnings (loss)	$ 238.7	$ 133.1	$ 357.4	$ 170.4
Reclassification of Accumulated Other Comprehensive Income | Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Cost of sales					6.6	2.5
Interest expense					9.2	8.1
Total before taxes					(2.6)	(5.6)
Income taxes					0.9	2.4
Net earnings (loss)					(1.7)	(3.2)
Reclassification of Accumulated Other Comprehensive Income | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Including Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total before taxes					9.6	16.8
Income taxes					(2.3)	(4.1)
Net earnings (loss)					7.3	12.7
Reclassification of Accumulated Other Comprehensive Income | Accumulated Defined Benefit Plans Adjustment Including Portion Attributable to Noncontrolling Interest
Accumulated Other Comprehensive Income (Loss) [Line Items]
Total before taxes					(9.6)	(7.7)
Income taxes					1.8	1.9
Net earnings (loss)					$ (7.8)	$ (5.8)