CONSOLIDATED STATEMENTS OF CHANGES IN CONTINGENTLY REDEEMABLE CONVERTIBLE PREFERRED STOCK AND STOCKHOLDERS’ EQUITY - USD ($)	Total	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive (Loss) Income
Beginning balance (in shares) at Dec. 31, 2020	504,000,000
Beginning balance at Dec. 31, 2020	$ 5,244,000,000
Contingently Redeemable Convertible Preferred Stock
Capital stock issuance including employee stock purchase plan (in shares)	72,000,000
Capital stock issuance including employee stock purchase plan	$ 2,650,000,000
Conversion of contingently redeemable preferred stock (in shares)	(576,000,000)
Conversion of contingently redeemable preferred stock	$ (7,894,000,000)
Ending balance (in shares) at Dec. 31, 2021	0
Ending balance at Dec. 31, 2021	$ 0
Beginning balance (in shares) at Dec. 31, 2020		101,000,000
Beginning balance at Dec. 31, 2020	(1,384,000,000)	$ 0	$ 302,000,000	$ (1,686,000,000)	$ 0
Stockholders' Equity
Capital stock issuance including employee stock purchase plan (in shares)		185,000,000
Capital stock issuance including employee stock purchase plan	14,181,000,000		14,181,000,000
Conversion of contingently redeemable preferred stock (in shares)		576,000,000
Conversion of contingently redeemable preferred stock	7,894,000,000	$ 1,000,000	7,893,000,000
Conversion of convertible notes (in shares)		38,000,000
Conversion of convertible notes	2,941,000,000			2,941,000,000
Stock-based compensation	570,000,000		570,000,000
Other comprehensive income (loss)	0
Net loss	(4,688,000,000)			(4,688,000,000)
Ending balance (in shares) at Dec. 31, 2021		900,000,000
Ending balance at Dec. 31, 2021	$ 19,514,000,000	$ 1,000,000	25,887,000,000	(6,374,000,000)	0
Contingently Redeemable Convertible Preferred Stock
Capital stock issuance including employee stock purchase plan (in shares)	0
Capital stock issuance including employee stock purchase plan	$ 0
Ending balance (in shares) at Dec. 31, 2022	0
Ending balance at Dec. 31, 2022	$ 0
Stockholders' Equity
Capital stock issuance including employee stock purchase plan (in shares)		26,000,000
Capital stock issuance including employee stock purchase plan	102,000,000		102,000,000
Stock-based compensation	937,000,000		937,000,000
Other comprehensive income (loss)	(2,000,000)				(2,000,000)
Net loss	$ (6,752,000,000)			(6,752,000,000)
Ending balance (in shares) at Dec. 31, 2022	926,000,000	926,000,000
Ending balance at Dec. 31, 2022	$ 13,799,000,000	$ 1,000,000	26,926,000,000	(13,126,000,000)	(2,000,000)
Ending balance (in shares) at Dec. 31, 2023	0
Ending balance at Dec. 31, 2023	$ 0
Stockholders' Equity
Capital stock issuance including employee stock purchase plan (in shares)		42,000,000
Capital stock issuance including employee stock purchase plan	63,000,000		63,000,000
Purchase of capped call options	(108,000,000)		(108,000,000)
Stock-based compensation	814,000,000		814,000,000
Other comprehensive income (loss)	5,000,000				5,000,000
Net loss	$ (5,432,000,000)			(5,432,000,000)
Ending balance (in shares) at Dec. 31, 2023	968,000,000	968,000,000
Ending balance at Dec. 31, 2023	$ 9,141,000,000	$ 1,000,000	$ 27,695,000,000	$ (18,558,000,000)	$ 3,000,000