DEBT (Details 2)								12 Months Ended
	Mar. 31, 2021	Mar. 30, 2021 USD ($)	Jan. 15, 2021 USD ($)	Oct. 15, 2020 USD ($)	May 19, 2020 USD ($)	May 08, 2020 USD ($)	Jul. 16, 2019 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Feb. 24, 2021 USD ($)
Debt Instrument [Line Items]
Notes payable								$ 2,802,100,000	$ 3,905,200,000
Debt early redemption premiums								137,700,000	14,600,000	$ 0
Write-off of Deferred Debt Issuance Costs and Fair Value Swap Losses								14,500,000	5,800,000
Repayments								(1,643,100,000)	(1,307,200,000)	(744,200,000)
Debt Repayment Debt Finance								150,000,000
Debt Repayment Cash			$ 122,900,000	$ 114,600,000
Senior Secured Revolving Credit Facility, Available Borrowing Amount								799,600,000
Write-off of Unamortized Deferred Debt Issuance Costs									5,800,000	2,800,000
Debt issuance costs								3,900,000	10,300,000	16,600,000
Total Letters of Credit Outstanding								81,100,000
Proceeds from Issuance of Long-term Debt								540,000,000.0	1,827,500,000
Long-term debt (repayments) borrowings, net								(1,103,100,000)	520,300,000
Loss on Extinguishment of Debt								152,200,000	20,400,000	0
Expected maturities of long-term debt [Abstract]
2021								201,100,000
2022								1,000,000
2023								720,800,000
2024								111,700,000
2025								83,000,000
Thereafter								1,684,500,000
August Interest Rate Swap Settlement										$ 2,300,000
1,615.0 million Senior Credit Facility
Debt Instrument [Line Items]
2021 Senior Credit Facility											$ 1,615,000,000
$1,300.0 million Senior Credit Facility
Debt Instrument [Line Items]
2020 Senior Secured Credit Facility						$ 1,300,000,000
2021 Senior Credit Facility											1,615,000,000
$315.0 million Senior Delayed Draw Term Loan
Debt Instrument [Line Items]
Proceeds from Issuance of Debt		$ 315,000,000
Delayed-Draw Term Loan Facility, Maximum Borrowing Capacity											315,000,000
$500.0 million Senior Term Loan
Debt Instrument [Line Items]
Senior Term Loan Facility											500,000,000
$800.0 million Senior Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Credit Facility, Maximum Borrowing Capacity											800,000,000
Letter of Credit Subfacility, Maximum											100,000,000
Senior Secured Revolving Credit Facility, Letters of Credit Outstanding Amount								400,000
Line of Credit Facility, Maximum Borrowing Capacity											$ 800,000,000
10.00% Senior Notes Due 2025
Debt Instrument [Line Items]
Repayments								(500,000,000.0)	0
Interest rate	10.00%
Debt Instrument, Redemption Price, Percentage	105.00%
Loss on Extinguishment of Debt								30,900,000	0
Senior Term Loans
Debt Instrument [Line Items]
Repayments								(465,000,000.0)	(175,000,000.0)
Proceeds from Issuance of Long-term Debt								315,000,000.0	675,000,000.0
Loss on Extinguishment of Debt								2,000,000.0	0
$2,000.0 million Senior Credit Facility
Debt Instrument [Line Items]
2019 Senior Credit Facility Term (in years)							5 years
2019 Senior Credit Facility							$ 2,000,000,000
$500.0 million Senior Delayed Draw Term Loan
Debt Instrument [Line Items]
Notes payable								$ 350,000,000.0	$ 500,000,000.0
Interest rate								1.604%	4.13%
Debt Repayment Debt Finance				500,000,000
Proceeds from Issuance of Debt				500,000,000
Annual Required Principal Payment Percent in Years 1 and 2						5.00%
Annual Required Principal Payment Percent in Year 3						7.50%
Annual Required Principal Payment Percent in Years 4 and 5						10.00%
$800.0 million Senior Revolving Credit Facility
Debt Instrument [Line Items]
Revolving Credit Facility, Maximum Borrowing Capacity						$ 800,000,000
Line of Credit Facility, Maximum Borrowing Capacity						$ 800,000,000
2022 Notes
Debt Instrument [Line Items]
Notes payable								$ 200,000,000.0	$ 200,000,000.0
Interest rate								5.50%	5.50%
Receivables Financing Agreement
Debt Instrument [Line Items]
Repayments								$ (50,000,000.0)	$ (530,000,000.0)
Debt Covenant, Secured Debt Exclusion								250,000,000
Proceeds from Issuance of Long-term Debt								225,000,000.0	655,000,000.0
Loss on Extinguishment of Debt								0	0
9.75% Senior Notes Due 2023
Debt Instrument [Line Items]
Repayments								$ (120,000,000.0)	(600,000,000.0)
Interest rate								9.75%
Loss on Extinguishment of Debt								$ 3,700,000	20,400,000
5.625% Senior Notes Due 2029
Debt Instrument [Line Items]
Debt early redemption premiums								10,400,000
Repayments								$ (80,700,000)	0
Interest rate								5.625%
Loss on Extinguishment of Debt								$ 9,000,000.0	0
5.00% Senior Notes Due 2030
Debt Instrument [Line Items]
Repayments								$ (34,700,000)	0
Interest rate								5.00%
Loss on Extinguishment of Debt								$ 2,800,000	0
Finance Leases
Debt Instrument [Line Items]
Repayments								(1,300,000)	(2,200,000)
Loss on Extinguishment of Debt								0	0
2023 Notes
Debt Instrument [Line Items]
Notes payable								$ 0	$ 120,000,000.0
Interest rate								9.75%	9.75%
Debt Repayments				600,000,000
2025 Notes 9.50%
Debt Instrument [Line Items]
Notes payable								$ 108,600,000	$ 500,000,000.0
Repayments								$ (391,400,000)	$ 0
Interest rate					9.50%			9.50%	9.50%
Debt Redemption Premium Amount								$ 99,400,000
Proceeds from Issuance of Debt					$ 500,000,000
Debt Issuance Percent of Value					0.995
Proceeds from Issuance of Long-term Debt								0	$ 497,500,000
Loss on Extinguishment of Debt								103,800,000	0
2027 Notes
Debt Instrument [Line Items]
Notes payable								$ 500,000,000.0	$ 500,000,000.0
Interest rate								5.125%	5.125%
2025 Notes 10.00%
Debt Instrument [Line Items]
Notes payable								$ 0	$ 500,000,000.0
Interest rate								10.00%	10.00%
Debt Redemption Premium Amount								$ 25,000,000
Debt Repayments								$ 185,000,000
2023 Notes
Debt Instrument [Line Items]
Debt Redemption Premium Amount			$ 2,900,000	$ 14,600,000
Debt Instrument, Redemption Price, Percentage			102.438%	102.438%
Debt Repayments			$ 120,000,000