COMMON STOCK AND STOCKHOLDERS' EQUITY - Narrative (Details)		1 Months Ended	3 Months Ended		9 Months Ended
	May 28, 2024 USD ($)	Feb. 28, 2023 shares	Sep. 30, 2024 USD ($) class vote $ / shares shares	Sep. 30, 2023 USD ($)	Sep. 30, 2024 USD ($) class vote $ / shares shares	Sep. 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
Payments for repurchases of common stock					$ 97,000,000	$ 608,000,000
Share-based compensation			$ 79,000,000	$ 83,000,000	227,000,000	790,000,000
Capitalized share-based compensation expense			7,000,000	5,000,000	18,000,000	12,000,000
Unrecognized compensation cost			310,000,000		$ 310,000,000
Unrecognized compensation cost related to outstanding stock options, weighted-average period					10 months 20 days
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation			25,000,000	26,000,000	$ 65,000,000	614,000,000
Market-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Canceled (in shares) | shares		35,500,000			11,180,727
Share-based compensation			$ 0	$ 10,000,000	$ (8,000,000)	563,000,000
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					146,000,000
Common stock reserved for issuance (in shares) | shares					45,000,000
2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remaining available for issuance (in shares) | shares			257,000,000		257,000,000
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
Repurchases of common stock ( in shares) | shares			5,000,000
Payments for repurchases of common stock			$ 97,000,000
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