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DEBT - Additional Information (Details) - USD ($)					3 Months Ended		6 Months Ended
DEBT - Additional Information (Details) - USD ($)	Jun. 30, 2020	May 22, 2020	Mar. 31, 2020	Feb. 14, 2020	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Oct. 01, 2019	Dec. 31, 2017
Debt Disclosure [Line Items]
Debt, stated interest rate	6.125%				6.125%		6.125%
Proceeds from issuance debt	$ 493,000,000
Proceeds from debt							$ 1,166,000,000	$ 310,000,000
Repayments of debt							(701,000,000)	$ (266,000,000)
Principal amount	2,719,000,000				$ 2,719,000,000		$ 2,719,000,000
Dividend per share (in usd per share)				$ 0.54	$ 0	$ 0.45	$ 0.54	$ 0.90
Debt instrument, convertible, remaining discount amortization period			2 years 2 months 12 days
Senior Secured Notes \| Senior notes
Debt Disclosure [Line Items]
Principal amount	500,000,000				$ 500,000,000		$ 500,000,000
Senior Unsecured Notes \| Senior notes
Debt Disclosure [Line Items]
Principal amount	$ 750,000,000				$ 750,000,000		$ 750,000,000
Debt, stated interest rate	6.50%				6.50%		6.50%
2028 Notes \| Senior notes
Debt Disclosure [Line Items]
Principal amount										$ 350,000,000
Debt, stated interest rate										4.75%
Principal amount	$ 350,000,000				$ 350,000,000		$ 350,000,000		$ 350,000,000
Revolving Corporate Credit Facility, net \| Corporate credit facility
Debt Disclosure [Line Items]
Principal amount	0				0		0		30,000,000
Convertible Notes, net \| Convertible notes
Debt Disclosure [Line Items]
Principal amount	$ 230,000,000				$ 230,000,000		$ 230,000,000
Debt, stated interest rate	1.50%				1.50%		1.50%
Principal amount	$ 230,000,000				$ 230,000,000		$ 230,000,000		230,000,000
Interest rate, effective percentage	4.70%				4.70%		4.70%
Term Loan \| Corporate credit facility
Debt Disclosure [Line Items]
Credit facility	$ 900,000,000				$ 900,000,000		$ 900,000,000
Principal amount	889,000,000				889,000,000		889,000,000		$ 893,000,000
Revolving corporate credit facility, net \| Corporate credit facility
Debt Disclosure [Line Items]
Credit facility	600,000,000				600,000,000		600,000,000
Debt Instrument, Covenant, Liquidity Threshold		$ 300,000,000
Revolving corporate credit facility, net \| Letter of credit \| Corporate credit facility
Debt Disclosure [Line Items]
Credit facility	$ 75,000,000				$ 75,000,000		$ 75,000,000
Convertible Note Hedges
Debt Disclosure [Line Items]
Option indexed to issuer's equity, indexed shares (in shares)											1,550,000
Convertible note hedges exercised (in shares)	0				0		0
Private Warrants
Debt Disclosure [Line Items]
Number of securities called by warrants (in shares)											1,550,000
Number of warrants exercised (in shares)	0				0		0
Exercise price of warrants (in usd per share)											$ 176.68
Minimum \| Revolving corporate credit facility, net \| Corporate credit facility
Debt Disclosure [Line Items]
Basis spread on variable rate							0.50%
Commitment fee percentage							0.20%
Maximum \| Revolving corporate credit facility, net \| Corporate credit facility
Debt Disclosure [Line Items]
Basis spread on variable rate							2.75%
Commitment fee percentage							0.40%
London Interbank Offered Rate (LIBOR) \| Term Loan \| Corporate credit facility
Debt Disclosure [Line Items]
Basis spread on variable rate							1.75%
Interest Rate Swap, September 2023
Debt Disclosure [Line Items]
Notional amount	$ 250,000,000				$ 250,000,000		$ 250,000,000
Derivative, fixed interest rate	2.9625%				2.9625%		2.9625%
Interest Rate Swap, April 2024
Debt Disclosure [Line Items]
Notional amount	$ 200,000,000				$ 200,000,000		$ 200,000,000
Derivative, fixed interest rate	2.248%				2.248%		2.248%
Interest Rate Contract
Debt Disclosure [Line Items]
Notional amount	$ 100,000,000				$ 100,000,000		$ 100,000,000
Cap strike rate	2.50%				2.50%		2.50%
Floor strike rate	1.881%				1.881%		1.881%