COMMON STOCK AND STOCKHOLDERS' (DEFICIT) EQUITY - Narrative (Details)					1 Months Ended					3 Months Ended		12 Months Ended
	Jan. 01, 2023 shares	Apr. 26, 2022	Aug. 02, 2021 shares	Aug. 01, 2021 USD ($) shares	Feb. 28, 2023 shares	Nov. 30, 2021 $ / shares shares	Jun. 30, 2021	Mar. 31, 2021 employee $ / shares	Feb. 28, 2021 $ / shares shares	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($) shares	Dec. 31, 2022 USD ($) class vote $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2019 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable convertible preferred stock, authorized (in shares)												0	0
Redeemable convertible preferred stock, issued (in shares)													0
Redeemable convertible preferred stock, outstanding (in shares)													0
Conversion of preferred stock to common stock | $				$ 2,180,000,000									$ 2,180,000,000
Preferred stock, shares outstanding (in shares)												0
Number of classes of common stock | class												3
Granted, weighted-average exercise price (in dollars per share) | $ / shares												$ 14.15		$ 3.64
Granted during the period (in shares)												4,463,248	0
Intrinsic value | $												$ 25,000,000	$ 179,000,000	$ 45,000,000
Share-based compensation | $												654,000,000	1,572,000,000	24,000,000
Share-based payment arrangement, amount capitalized | $												28,000,000	35,000,000	1,000,000
Unrecognized compensation cost | $												$ 1,230,000,000
Unrecognized compensation cost related to outstanding stock options, weighted-average period												1 year 11 months 26 days
Technology and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $												$ 212,000,000	610,000,000	18,000,000
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $												425,000,000	885,000,000	5,000,000
April 2022 Restructuring | Workforce Reduction
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period		2 months
Share-based compensation | $										$ 53,000,000	$ 24,000,000
April 2022 Restructuring | Workforce Reduction | Technology and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $										22,000,000	16,000,000
April 2022 Restructuring | Workforce Reduction | General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $										$ 28,000,000	$ 6,000,000
Tranche 1 Convertible Note Holders
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum amount of all warrants | $												$ 380,000,000
2020 Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net proceeds from sale in IPO | $														22,000,000
Remaining liability reclassified to additional paid-in capital | $														19,000,000
Share-based compensation | $														$ 17,000,000
2020 Tender Offer | Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares)														1,400,000
2021 Plan | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remaining available for issuance (in shares)	44,600,000
2013 and 2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of common stock authorized (in shares)												360,000,000
Shares issued under plans (in shares)												98,000,000
Common stock reserved for issuance (in shares)												130,000,000
2020 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remaining available for issuance (in shares)												132,000,000
2021 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $												$ 11,000,000
Conversion of Class B Common Stock into Class A Common
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, conversion basis												1
Conversion basis, outstanding shares, percentage												80.00%
Conversion basis, percentage of aggregate shares outstanding												5.00%
Conversion basis, approval period, death or total disability of founders												9 months
Conversion basis, approval period delay (up to)												18 months
Conversion basis, final conversion date												15 years
Conversion of Class B Common Stock into Class A Common | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion basis, outstanding shares, fixed days												61 days
Conversion basis, aggregate outstanding shares, fixed days												61 days
Conversion of Class B Common Stock into Class A Common | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion basis, outstanding shares, fixed days												180 days
Conversion basis, aggregate outstanding shares, fixed days												180 days
Conversion of Class C Common Stock into Class A Common
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock, conversion basis												1
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period												4 years
Vesting rate, percentage												25.00%
Exercisable, period (up to)												10 years
Share-based compensation | $												$ 6,000,000
Stock options | 2020 Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $														$ 16,000,000
Stock options | Share-based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period												1 year
RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable, period (up to)												7 years
Time-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period								1 year
Requisite service period												4 years
Forfeited, weighted-average grant date fair value (in dollars per share) | $ / shares												$ 23.93
Vested in period total fair value | $												$ 542,000,000	$ 1,054,000,000	0
Vested (in shares)												25,213,252
Share-based compensation | $												$ 314,000,000
Number of employees affected | employee								500
Modified grant date fair value (in dollars per share) | $ / shares								$ 39.75				$ 18.55	$ 31.78
Time-Based RSUs | 2020 Tender Offer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation | $														$ 2,000,000
2021 Market-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested (in shares)												0
2021 Market-Based RSUs | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vested (in shares)					35,300,000
Market-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period												6 years
Forfeited, weighted-average grant date fair value (in dollars per share) | $ / shares
Vested in period total fair value | $												$ 5,000,000	$ 161,000,000
Vested (in shares)												461,060		0
Share-based compensation | $												$ 323,000,000
Modified grant date fair value (in dollars per share) | $ / shares												$ 23.50	$ 23.50
Employee Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares remaining available for issuance (in shares)												25,600,000
Number of share purchased (in shares)						1,900,000
Weighted average price of shares purchased (in dollars per share) | $ / shares						$ 8.42
Employee Stock | Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Authorized for issuance under the ESPP (in shares)	8,900,000
Employee Stock | 2021 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Annual increase as a percentage of outstanding shares							1.00%
Shares of common stock authorized (in shares)											200,000,000
Maximum payroll deduction for ESPP, percentage											15.00%
ESPP purchase price discount, percentage							85.00%
ESPP offering period							12 months
Series G-1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable convertible preferred stock, authorized (in shares)									244,300,000
Redeemable convertible preferred stock, issued (in shares)				0
Redeemable convertible preferred stock, outstanding (in shares)				0
Common Class A
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion basis				1
Number of voting rights per share | vote												1
Common Class A | IPO
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Conversion of stock, shares issued (in shares)									137,300,000
Conversion price (in dollars per share) | $ / shares									$ 26.60
Aggregate warrants exercisable (in shares)												14,300,000
Exercise price (in dollars per share) | $ / shares												$ 26.60
Shares issued (in shares)			55,000,000
Redeemable convertible preferred stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Redeemable convertible preferred stock, issued (in shares)												0
Redeemable convertible preferred stock, outstanding (in shares)												0	0	412,742,897	321,626,778
Conversion of preferred stock to common stock | $													$ (2,180,000,000)
Common Class B
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of voting rights per share | vote												10