SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) - USD ($)	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Dec. 31, 2021
Derivative [Line Items]
Restricted cash	$ 540,000,000		$ 290,000,000
Allowance for credit loss	0		$ 0
Inventory write-downs and losses on firm purchase commitments	301,000,000	$ 0
Commodity Contract | Not Designated as Hedging Instrument, Economic Hedge
Derivative [Line Items]
Derivative, notional amount	$ 69,000,000