CONDENSED CONSOLIDATED STATEMENTS OF REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY - USD ($) $ in Thousands	Total	Underwriting Agreement	2023 Subscription Agreement	Redeemable Convertible Preferred Stock	Common Stock	Common Stock Underwriting Agreement	Common Stock 2023 Subscription Agreement	Additional Paid-In Capital	Additional Paid-In Capital Underwriting Agreement	Additional Paid-In Capital 2023 Subscription Agreement	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2022					1,829,314,736
Beginning balance at Dec. 31, 2022	$ 4,349,701				$ 183			$ 11,752,138			$ (20,716)	$ (11,572)	$ (7,370,332)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,543,760)												(1,543,760)
Other comprehensive income (loss)	1,622											1,622
Tax withholding payments for net settlement of employee awards	(10,378)							(10,378)
Issuance of common stock upon vesting of employee RSUs (in shares)					6,435,734
Issuance of common stock upon vesting of employee RSUs	0				$ 1			(1)
Issuance of common stock under employee stock purchase plan (in shares)					2,287,592
Issuance of common stock under employee stock purchase plan	15,089							15,089
Issuance of common stock upon exercise of stock options (in shares)					5,002,102
Issuance of common stock upon exercise of stock options	5,107							5,107
Issuance of common stock (in shares)						173,544,948	265,693,703
Issuance of common stock		$ 1,184,224	$ 1,812,641			$ 17	$ 27		$ 1,184,207	$ 1,812,614
Stock-based compensation	145,594							145,594
Ending balance (in shares) at Jun. 30, 2023					2,282,278,815
Ending balance at Jun. 30, 2023	5,959,840				$ 228			14,904,370			(20,716)	(9,950)	(8,914,092)
Beginning balance (in shares) at Mar. 31, 2023					1,833,385,174
Beginning balance at Mar. 31, 2023	3,631,851				$ 183			11,809,781			(20,716)	(7,537)	(8,149,860)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(764,232)												(764,232)
Other comprehensive income (loss)	(2,413)											(2,413)
Tax withholding payments for net settlement of employee awards	(3,879)							(3,879)
Issuance of common stock upon vesting of employee RSUs (in shares)					4,565,661
Issuance of common stock upon vesting of employee RSUs	0				$ 1			(1)
Issuance of common stock under employee stock purchase plan (in shares)					2,287,592
Issuance of common stock under employee stock purchase plan	15,089							15,089
Issuance of common stock upon exercise of stock options (in shares)					2,801,737
Issuance of common stock upon exercise of stock options	2,926							2,926
Issuance of common stock (in shares)						173,544,948	265,693,703
Issuance of common stock		$ 1,184,224	$ 1,812,641			$ 17	$ 27		$ 1,184,207	$ 1,812,614
Stock-based compensation	83,633							83,633
Ending balance (in shares) at Jun. 30, 2023					2,282,278,815
Ending balance at Jun. 30, 2023	$ 5,959,840				$ 228			14,904,370			(20,716)	(9,950)	(8,914,092)
Beginning balance (in shares) at Dec. 31, 2023	0			0
Beginning balance at Dec. 31, 2023	$ 0			$ 0
Increase (Decrease) in Temporary Equity [Roll Forward]
Issuance of Series A redeemable convertible preferred stock, net of derivative liability and issuance costs (related party) (in shares)				100,000
Issuance of Series A redeemable convertible preferred stock, net of derivative liability and issuance costs (related party)				$ 500,549
Accretion of Series A redeemable convertible preferred stock (related party)				$ 150,762
Ending balance (in shares) at Jun. 30, 2024	100,000			100,000
Ending balance at Jun. 30, 2024	$ 651,311			$ 651,311
Beginning balance (in shares) at Dec. 31, 2023	2,299,253,664				2,299,253,664
Beginning balance at Dec. 31, 2023	$ 4,851,692				$ 230			15,066,080			(20,716)	4,850	(10,198,752)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(1,324,249)												(1,324,249)
Other comprehensive income (loss)	(9,009)											(9,009)
Tax withholding payments for net settlement of employee awards	(5,312)							(5,312)
Issuance of common stock upon vesting of employee RSUs (in shares)					12,732,126
Issuance of common stock upon vesting of employee RSUs	0				$ 2			(2)
Issuance of common stock under employee stock purchase plan (in shares)					4,601,557
Issuance of common stock under employee stock purchase plan	$ 11,104							11,104
Issuance of common stock upon exercise of stock options (in shares)	2,098,557				2,098,557
Issuance of common stock upon exercise of stock options	$ 2,311							2,311
Accretion of Series A redeemable convertible preferred stock (related party)	(150,762)							(150,762)
Stock-based compensation	$ 140,122							140,122
Ending balance (in shares) at Jun. 30, 2024	2,318,685,904				2,318,685,904
Ending balance at Jun. 30, 2024	$ 3,515,897				$ 232			15,063,541			(20,716)	(4,159)	(11,523,001)
Beginning balance (in shares) at Mar. 31, 2024				100,000
Beginning balance at Mar. 31, 2024				$ 504,450
Increase (Decrease) in Temporary Equity [Roll Forward]
Accretion of Series A redeemable convertible preferred stock (related party)				$ 146,861
Ending balance (in shares) at Jun. 30, 2024	100,000			100,000
Ending balance at Jun. 30, 2024	$ 651,311			$ 651,311
Beginning balance (in shares) at Mar. 31, 2024					2,306,928,813
Beginning balance at Mar. 31, 2024	4,232,190				$ 231			15,134,686			(20,716)	(2,400)	(10,879,611)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(643,390)												(643,390)
Other comprehensive income (loss)	(1,759)											(1,759)
Tax withholding payments for net settlement of employee awards	(2,070)							(2,070)
Issuance of common stock upon vesting of employee RSUs (in shares)					6,472,275
Issuance of common stock upon vesting of employee RSUs	0				$ 1			(1)
Issuance of common stock under employee stock purchase plan (in shares)					4,601,557
Issuance of common stock under employee stock purchase plan	11,104							11,104
Issuance of common stock upon exercise of stock options (in shares)					683,259
Issuance of common stock upon exercise of stock options	786							786
Accretion of Series A redeemable convertible preferred stock (related party)	(146,861)							(146,861)
Stock-based compensation	$ 65,897							65,897
Ending balance (in shares) at Jun. 30, 2024	2,318,685,904				2,318,685,904
Ending balance at Jun. 30, 2024	$ 3,515,897				$ 232			$ 15,063,541			$ (20,716)	$ (4,159)	$ (11,523,001)