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RESTRUCTURING AND OTHER COSTS - RESTRUCTURING ACCRUALS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Restructuring Reserve
Beginning Balance	$ 46.2	$ 60.2
Provisions and adjustments	42.4	39.1
Amounts applied	(49.4)	(46.0)
Change in estimates	(9.2)	(7.1)
Ending Balance	30.0	46.2
Severances
Restructuring Reserve
Beginning Balance	43.2	55.9
Provisions and adjustments	36.7	31.5
Amounts applied	(43.6)	(37.4)
Change in estimates	(9.3)	(6.8)
Ending Balance	27.0	43.2
Severances | 2017 and Prior Plans
Restructuring Reserve
Beginning Balance	26.8
Provisions and adjustments	4.7
Amounts applied	(22.2)
Change in estimates	(7.0)
Ending Balance	2.3	26.8
Severances | 2016 and Prior Plans
Restructuring Reserve
Beginning Balance	2.6	7.7
Provisions and adjustments		2.0
Amounts applied		(7.0)
Change in estimates		(0.1)
Ending Balance		2.6
Severances | 2017 Plans
Restructuring Reserve
Beginning Balance	24.2	48.2
Provisions and adjustments		1.0
Amounts applied		(20.2)
Change in estimates		(4.8)
Ending Balance		24.2
Severances | 2018 Plans
Restructuring Reserve
Beginning Balance	16.4	0.0
Provisions and adjustments	1.0	28.5
Amounts applied	(12.0)	(10.2)
Change in estimates	(0.5)	(1.9)
Ending Balance	4.9	16.4
Severances | 2019 Plans
Restructuring Reserve
Beginning Balance	0.0
Provisions and adjustments	31.0
Amounts applied	(9.4)
Change in estimates	(1.8)
Ending Balance	19.8	0.0
Lease/Contract Terminations
Restructuring Reserve
Beginning Balance	0.6	0.6
Provisions and adjustments	0.8	2.2
Amounts applied	(0.9)	(1.9)
Change in estimates		(0.3)
Ending Balance	0.5	0.6
Lease/Contract Terminations | 2017 and Prior Plans
Restructuring Reserve
Beginning Balance	0.5
Provisions and adjustments	0.7
Amounts applied	(0.7)
Ending Balance	0.5	0.5
Lease/Contract Terminations | 2016 and Prior Plans
Restructuring Reserve
Beginning Balance	0.5	0.4
Provisions and adjustments		1.7
Amounts applied		(1.3)
Change in estimates		(0.3)
Ending Balance		0.5
Lease/Contract Terminations | 2017 Plans
Restructuring Reserve
Beginning Balance	0.0	0.2
Provisions and adjustments		0.3
Amounts applied		(0.5)
Change in estimates		0.0
Ending Balance		0.0
Lease/Contract Terminations | 2018 Plans
Restructuring Reserve
Beginning Balance	0.1	0.0
Provisions and adjustments	0.0	0.2
Amounts applied	(0.1)	(0.1)
Change in estimates		0.0
Ending Balance	0.0	0.1
Lease/Contract Terminations | 2019 Plans
Restructuring Reserve
Beginning Balance	0.0
Provisions and adjustments	0.1
Amounts applied	(0.1)
Ending Balance	0.0	0.0
Other Restructuring Costs
Restructuring Reserve
Beginning Balance	2.4	3.8
Provisions and adjustments	4.9	5.4
Amounts applied	(4.9)	(6.7)
Change in estimates	0.1	(0.1)
Ending Balance	2.5	2.4
Other Restructuring Costs | 2017 and Prior Plans
Restructuring Reserve
Beginning Balance	2.0
Provisions and adjustments	1.2
Amounts applied	(1.1)
Change in estimates	0.1
Ending Balance	2.2	2.0
Other Restructuring Costs | 2016 and Prior Plans
Restructuring Reserve
Beginning Balance	0.8	2.1
Provisions and adjustments		1.4
Amounts applied		(2.6)
Change in estimates		(0.1)
Ending Balance		0.8
Other Restructuring Costs | 2017 Plans
Restructuring Reserve
Beginning Balance	1.2	1.7
Provisions and adjustments		0.6
Amounts applied		(1.1)
Change in estimates		0.0
Ending Balance		1.2
Other Restructuring Costs | 2018 Plans
Restructuring Reserve
Beginning Balance	0.4	0.0
Provisions and adjustments	1.2	3.4
Amounts applied	(1.6)	(3.0)
Change in estimates	0.0	0.0
Ending Balance	0.0	0.4
Other Restructuring Costs | 2019 Plans
Restructuring Reserve
Beginning Balance	0.0
Provisions and adjustments	2.5
Amounts applied	(2.2)
Change in estimates	0.0
Ending Balance	$ 0.3	$ 0.0

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- Definition

Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation.

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