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CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Other Comprehensive Income [Abstract]
Net loss	$ (275)	$ (1,353)	$ (662)
OTHER COMPREHENSIVE INCOME (LOSS):
Unrealized gain (loss) on marketable securities	3	(2)	(2)
COMPREHENSIVE LOSS	$ (272)	$ (1,355)	$ (664)

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Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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