ESTIMATES, SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES AND BALANCE SHEET DETAIL Estimates, Significant Accounting Policies and Balance Sheet Detail - Cash and Cash Equivalents (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Restricted Cash and Cash Equivalents Items
Settlement of affiliate liability - related party payables	$ 0	$ (4)	$ 0
Capital Expenditures Incurred but Not yet Paid	8	4	11
Interest Paid, Excluding Capitalized Interest, Operating Activities	15	16	23
Affiliated Entity
Restricted Cash and Cash Equivalents Items
Dividends and Interest Paid	$ 18	$ 33	$ 23