DEBT - Vipers Facility - Wells Fargo Bank (Details) - Viper revolving credit facility		12 Months Ended
	Jul. 20, 2018 USD ($) redetermindation	Dec. 31, 2019 USD ($)	Nov. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 2,000,000,000
Current borrowing base			$ 775,000,000
Number of additional redeterminations that may be requested | redetermindation	3
Period of redeterminations	12 months
Outstanding borrowings		$ 97,000,000		$ 411,000,000
Remaining borrowing capacity		678,000,000
Issuance of unsecured debt		$ 1,000,000,000.0
Financial covenant, reduction of borrowing base (percentage)		25.00%
Federal Funds Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.50%
LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.00%
Minimum
Line of Credit Facility [Line Items]
Quarterly commitment fee percentage based on unused portion of borrowing base		0.375%
Minimum | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		0.75%
Minimum | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.75%
Maximum
Line of Credit Facility [Line Items]
Quarterly commitment fee percentage based on unused portion of borrowing base		0.50%
Maximum | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate		1.75%
Maximum | LIBOR
Line of Credit Facility [Line Items]
Basis spread on variable rate		2.75%