RELATED PARTY TRANSACTIONS - Summary of Related Party Payable (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Related Party Transaction [Line Items]
Related party payable	$ 110	$ 25
Affiliated Entity
Related Party Transaction [Line Items]
Related party payable	110	25
Inventory purchases \| Affiliated Entity
Related Party Transaction [Line Items]
Related party payable	96	16
Other \| Affiliated Entity
Related Party Transaction [Line Items]
Related party payable	$ 14	$ 9

Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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+ Details