DEBT (Credit Facilities) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2020 USD ($) Rate	Dec. 31, 2019 USD ($)	May 07, 2020 Rate	Jun. 03, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 19, 2014 USD ($)
Line of Credit Facility [Line Items]
2019 Term Loan				$ 850.0
Line of Credit Facility, Remaining Borrowing Capacity	$ 923.7
Senior Notes Became Due During Quarter		$ 412.2
Cash and cash equivalents	323.6	337.5			$ 348.8	$ 426.8
Long-term Debt, Excluding Current Maturities	5,790.2	5,789.8
Line of Credit Facility, Fair Value of Amount Outstanding		375.0
Revolving Credit Facility, maximum borrowing capacity							$ 1,000.0
Notes Payable	2.2	2.2
Debt, Current	417.4	415.2
Credit Facility Option to Increase							350.0
Credit Facility, Maximum Swing Line Borrowings							100.0
Notes Payable	6.5	7.0
Senior notes due 2027 [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Excluding Current Maturities	600.0	600.0
Senior notes due 2024 [Member] [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Excluding Current Maturities	$ 600.0	600.0
Senior notes due 2020 [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Senior notes due 2045 [Member]
Line of Credit Facility [Line Items]
Long-term Debt, Excluding Current Maturities	$ 900.0	900.0
Senior notes due 2022 [Member]
Line of Credit Facility [Line Items]
Senior Notes, Noncurrent	500.0	500.0
Long-term Debt, Excluding Current Maturities	$ 500.0	$ 500.0
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Credit Facility, Maximum Letters of Credit							$ 150.0
Line of Credit Facility, Interest Rate at Period End | Rate	1.97%
Prime Rate [Member] | 2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.0% to 0.175%
Prime Rate [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.00% to 0.25%
London Interbank Offered Rate (LIBOR) [Member] | 2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Interest Rate Description	0.55% to 1.175%
Subsequent Event [Member] | Term Loan and Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt to EBITDA (Leverage) Ratio Quarter Ending 1 Year From Present			4.50
Subsequent Event [Member] | 2019 Term Loan [Member]
Line of Credit Facility [Line Items]
Term Loan Accrue Interest per Annum at Libor Plus Margin Percentage | Rate			1.175%
Term Loan Accrue Interest Per Annum Base Rate Plus Percentage | Rate			0.175%
Subsequent Event [Member] | Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Revolving Credit Facility Accrue Interest per Annum at Libor Plus Margin Percentage | Rate			1.25%
Revolving Credit Facility Accrue Interest Per Annum Base Rate Plus Percentage | Rate			0.25%
Revolving Credit Facility Fee Percentage Required to Pay on Outstanding Commitments | Rate			0.25%
Subsequent Event [Member] | Maximum [Member] | Term Loan and Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Debt to EBITDA (Leverage) Ratio Next Three Quarters			5.0