COMMON STOCK AND STOCKHOLDERS' (DEFICIT) EQUITY - Narrative (Details)		1 Months Ended	3 Months Ended		6 Months Ended
	May 28, 2024 USD ($)	Feb. 28, 2023 shares	Jun. 30, 2024 USD ($) vote class $ / shares shares	Jun. 30, 2023 USD ($)	Jun. 30, 2024 USD ($) vote class $ / shares shares	Jun. 30, 2023 USD ($)	Dec. 31, 2023 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares outstanding (in shares) | shares			0		0		0
Number of classes of common stock | class			3		3
Share-based compensation			$ 86,000,000	$ 109,000,000	$ 148,000,000	$ 707,000,000
Capitalized share-based compensation expense			6,000,000	3,000,000	11,000,000	7,000,000
Unrecognized compensation cost			390,000,000		$ 390,000,000
Unrecognized compensation cost related to outstanding stock options, weighted-average period					10 months 17 days
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation			28,000,000	49,000,000	$ 40,000,000	588,000,000
Market-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Canceled (in shares) | shares		35,500,000			6,109,059
Share-based compensation			$ 1,000,000	$ 25,000,000	$ (8,000,000)	553,000,000
Market-Based RSUs | General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation						$ 485,000,000
2013, 2020 and 2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock authorized (in shares) | shares			448,000,000		448,000,000
Shares issued under plans (in shares) | shares					142,000,000
Common stock reserved for issuance (in shares) | shares					63,000,000
2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remaining available for issuance (in shares) | shares			243,000,000		243,000,000
Tranche 1 Convertible Note Holders
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum amount of all warrants			$ 380,000,000		$ 380,000,000
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of voting rights per share | vote			1		1
Shares repurchase, amount	$ 1,000,000,000
Common Class A | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchase program period	2 years
Common Class A | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchase program period	3 years
Common Class A | IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate warrants exercisable (in shares) | shares			14,300,000		14,300,000
Exercise price (in dollars per share) | $ / shares			$ 26.60		$ 26.60
Common Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of voting rights per share | vote			10		10