INCOME TAXES (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Valuation Allowance [Line Items]
Effective Income Tax Rate Reconciliation, Repatriation Foreign Earnings, Jobs Creation Act of 2004, Percent			$ 45.0
Undistributed Earnings of Foreign Subsidiaries				$ 702.4	$ 601.4
Foreign Earnings Repatriated			14.8
Tax Cuts and Jobs Act, Change in Tax Rate, Deferred Tax Asset, Income Tax Expense			30.1
SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Cost and Expense	$ 5.8	$ 0.0	3.4
Accrued Tax Interest Added from Acquisition				1.4
Federal			$ 0.0
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent	4.00%	0.00%	0.00%
Unrecognized income tax benefits that would impact effective tax rate				2.1	0.0	$ 0.0
SEC Schedule, 12-09, Valuation Allowances and Reserves, Deduction	$ 16.4	$ 11.5
Pre-tax income [Abstract]
Domestic	1,846.5	784.4	$ 937.7
Foreign	372.5	320.5	330.6
Total pre-tax income	2,219.1	1,104.9	1,268.3
Current:
Federal	455.3	126.7	225.8
State	172.8	40.2	61.2
Foreign	81.0	83.9	64.3
Total current income taxes	709.1	250.8	351.3
Deferred Federal Income Tax Expense (Benefit)	(6.7)	38.2	(2.5)
Deferred:
Federal			0.0
State	(28.1)	2.5	30.0
Foreign	(12.2)	(11.5)	5.6
Deferred Income Tax Expense (Benefit)	(47.0)	29.2	33.1
Total income tax provision	662.1	$ 280.0	$ 384.4
Deferred Tax Assets, Operating Loss Carryforwards, State and Local				540.3
Operating Loss Carryforwards, Valuation Allowance				340.0
Federal and State Attribute Carryforwards				288.6
Federal and State Attribute Carryforward Valuation Allowance	$ 229.6
Federal statutory tax rate reconciliation [Abstract]
Statutory U.S. rate	21.00%	21.00%	21.00%
State and local income taxes, net of U.S. Federal income tax effect	5.30%	3.20%	3.40%
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent	(0.40%)	(0.10%)	(0.30%)
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Restructuring Charges, Percent	0.00%	0.70%	1.90%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	0.00%	0.00%	2.40%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent	0.00%	0.00%	1.20%
Effective Income Tax Rate Reconciliation, Nondeductible Expense, Impairment Losses, Percent	4.00%	0.00%	0.00%
Effective Income Tax Rate Reconciliation, GILTI Impact, Percent	(0.001)	0.011	0.010
Other	0.00%	(0.60%)	(0.30%)
Effective rate	29.80%	25.30%	30.30%
Deferred tax assets:
Accounts receivable				20.0	16.9
Employee compensation and benefits				115.6	105.1
Deferred Tax Asset, Right Of Use Asset				187.6	191.4
Acquisition and restructuring reserves				22.6	9.9
Tax loss carryforwards				206.8	207.1
Deferred Tax Assets, Other				126.8	62.9
Total deferred tax assets				679.4	593.3
Less: valuation allowance				(167.6)	(145.4)	(156.9)	$ (153.5)
Deferred tax assets, net of valuation allowance				511.8	447.9
Deferred tax liabilities:
Deferred Tax Liabilities, Leasing Arrangements				(179.5)	(177.3)
Intangible assets				(912.5)	(910.5)
Property, plant and equipment				(203.9)	(194.6)
Deferred Tax Liabilities, Other				(46.3)	(57.4)
Total gross deferred tax liabilities				(830.4)	(891.9)
Deferred Tax Liabilities, Gross				(1,342.2)	(1,339.8)
Foreign tax loss carryovers				59.1
Foreign Tax Loss Carryover with Valuation Allowance	$ 25.9
Foreign Tax Loss Carryovers Expire in 2034				502.9
Deferred Tax Assets, Capital Loss Carryforwards				6.9
Federal tax loss carryovers				185.2
Gross unrecognized income tax benefits	31.7	$ 18.0	$ 19.5	48.8	31.7	18.0	$ 19.5
Accrued interest and penalties related to unrecognized income tax benefits				8.3	5.5
Income Tax Examination, Penalties Expense	4.4	2.0	1.8
Reversal of Accrued Income Tax Penalties And Interest	3.0	5.8	0.5
Reconciliation of unrecognized tax benefits [Roll Forward]
Balance as of January 1	31.7	18.0	19.5
Increase in reserve for tax positions taken in the current year	17.3	10.3	3.1
Unrecognized Tax Benefits Increase in Reserve From Acquisition	8.2	8.4	0.0
Decrease in reserve as a result of payments	(0.3)	(0.8)	(4.6)
Decrease in reserve as a result of lapses in the statute of limitations	(8.1)	(4.2)	0.0
Balance as of December 31	48.8	$ 31.7	$ 18.0
Unrecognized income tax benefits that would impact effective tax rate				2.1	0.0	0.0
Reduction in Taxes
Valuation Allowance [Line Items]
Unrecognized income tax benefits that would impact effective tax rate				46.7	31.7	18.0
Reconciliation of unrecognized tax benefits [Roll Forward]
Unrecognized income tax benefits that would impact effective tax rate				$ 46.7	$ 31.7	$ 18.0
Federal Loss Carryover [Domain]
Valuation Allowance [Line Items]
Federal	3.9
Deferred:
Federal	$ 3.9