DEBT - Additional Information (Details)					1 Months Ended	3 Months Ended
	May 22, 2020 USD ($)	Mar. 31, 2020 USD ($) $ / shares shares	Feb. 14, 2020 $ / shares	Dec. 09, 2019 $ / shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2020 USD ($) $ / shares shares	Mar. 31, 2019 USD ($) $ / shares	Sep. 30, 2017 $ / shares shares	Dec. 31, 2019 USD ($)	Oct. 01, 2019 USD ($)
Debt Disclosure [Line Items]
Proceeds from debt						$ 666,000,000	$ 125,000,000
Principal amount		$ 2,817,000,000			$ 2,817,000,000	2,817,000,000
Reclassification to Income Statement (less than)						$ 1,000,000
Dividend per share (in usd per share) | $ / shares			$ 0.54	$ 0.54		$ 0.54	$ 0.45
Debt instrument, convertible, remaining discount amortization period		2 years 6 months
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		596,000,000			596,000,000	596,000,000			30,000,000
Convertible Notes | 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
Conversion ratio						0.0000068114		0.0000067482
Debt instrument, convertible, conversion price (in usd per share) | $ / shares		$ 146.81			$ 146.81	$ 146.81
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		891,000,000			891,000,000	891,000,000			$ 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
Proceeds from debt					386,000,000
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) | shares								1,550,000
Convertible note hedges exercised (in shares) | shares		0			0	0
Private Warrants
Debt Disclosure [Line Items]
Number of securities called by warrants (in shares) | shares								1,550,000
Number of warrants exercised (in shares) | shares		0			0	0
Exercise price of warrants (in usd per share) | $ / shares		$ 175.04			$ 175.04	$ 175.04		$ 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%
Subsequent Event
Debt Disclosure [Line Items]
Debt, stated interest rate	6.125%
Proceeds from issuance debt	$ 494,000,000
Subsequent Event | Senior Secured Notes | Senior Notes
Debt Disclosure [Line Items]
Principal amount	500,000,000
Subsequent Event | Revolving corporate credit facility, net | Corporate Credit Facility
Debt Disclosure [Line Items]
Debt Instrument, Covenant, Liquidity Threshold	$ 300,000,000