ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in 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 (loss):
Beginning balance	$ 8,959.2	$ 9,142.2	$ 7,936.7	$ 7,839.9	$ 9,142.2	$ 7,839.9
Other comprehensive (loss) income before reclassifications					(158.2)	4.0
Reclassification adjustments to earnings					2.2	(3.7)
Net other comprehensive (loss) income	102.8	(258.8)	(0.7)	1.0	(156.0)	0.3
Ending balance	9,965.6	8,959.2	8,233.3	7,936.7	9,965.6	8,233.3
Currency translation adjustment and other
Accumulated other comprehensive (loss):
Beginning balance		(1,517.2)		(1,481.2)	(1,517.2)	(1,481.2)
Other comprehensive (loss) income before reclassifications					(143.4)	2.8
Reclassification adjustments to earnings					0.0	0.0
Net other comprehensive (loss) income					(143.4)	2.8
Ending balance	(1,660.6)		(1,478.4)		(1,660.6)	(1,478.4)
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Accumulated other comprehensive (loss):
Beginning balance		(54.2)		(26.8)	(54.2)	(26.8)
Other comprehensive (loss) income before reclassifications					(58.8)	(21.2)
Reclassification adjustments to earnings					1.7	3.2
Net other comprehensive (loss) income					(57.1)	(18.0)
Ending balance	(111.3)		(44.8)		(111.3)	(44.8)
Unrealized gains (losses) on net investment hedges, net of tax
Accumulated other comprehensive (loss):
Beginning balance		97.3		63.3	97.3	63.3
Other comprehensive (loss) income before reclassifications					34.3	21.6
Reclassification adjustments to earnings					(7.3)	(12.7)
Net other comprehensive (loss) income					27.0	8.9
Ending balance	124.3		72.2		124.3	72.2
Pension (losses) gains, net of tax
Accumulated other comprehensive (loss):
Beginning balance		(410.5)		(369.6)	(410.5)	(369.6)
Other comprehensive (loss) income before reclassifications					9.7	0.8
Reclassification adjustments to earnings					7.8	5.8
Net other comprehensive (loss) income					17.5	6.6
Ending balance	(393.0)		(363.0)		(393.0)	(363.0)
Accumulated Other Comprehensive Loss
Accumulated other comprehensive (loss):
Beginning balance	(2,143.4)	(1,884.6)	(1,813.3)	(1,814.3)	(1,884.6)	(1,814.3)
Net other comprehensive (loss) income	102.8	(258.8)	(0.7)	1.0
Ending balance	$ (2,040.6)	$ (2,143.4)	$ (1,814.0)	$ (1,813.3)	$ (2,040.6)	$ (1,814.0)