CONSOLIDATED STATEMENTS OF CHANGES IN TEMPORARY EQUITY AND SHAREHOLDERS’ EQUITY (DEFICIT) - USD ($) $ in Millions	Total	Common Stock	Common Stock Restricted Shares	Common Stock RSUs	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Non- controlling interests	Series A Convertible Preferred Stock	Series B Convertible Preferred Stock	Series C Convertible Preferred Stock	Series D Convertible Preferred Stock	Series D Convertible Preferred Stock Additional Paid-in Capital	Series E Convertible Preferred Stock	Series E Convertible Preferred Stock Additional Paid-in Capital	Series E-2 Convertible Preferred Stock
Temporary equity, shares outstanding, beginning balance (in shares) at Dec. 31, 2018									40,089,513	23,840,816	29,070,700	54,865,494		123,623,684
Temporary equity, beginning balance at Dec. 31, 2018									$ 10	$ 20	$ 81	$ 223		$ 731
Temporary Equity [Abstract]
Issuance of preferred stock (Series D, Series E, Series E-2) (in shares)												8,605,390				34,328,839
Issuance of preferred stock (Series D, Series E, Series E-1)												$ 35				$ 282
Temporary equity, shares outstanding, ending balance (in shares) at Dec. 31, 2019									40,089,513	23,840,816	29,070,700	63,470,884		157,952,523
Temporary equity, ending balance at Dec. 31, 2019									$ 10	$ 20	$ 81	$ 258		$ 1,013
Shares outstanding, beginning balance (in shares) at Dec. 31, 2018		77,863,856
Shareholders' equity (deficit), beginning balance at Dec. 31, 2018	$ (414)	$ 0			$ 31	$ (446)	$ 0	$ 1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock												$ 7	$ 7
Issuance of common stock in connection with acquisition (in shares)		1,550,059
Issuance of common stock in stock in connection with acquisition	7				7
Vesting of restricted stock (in shares)		2,106,144
Vesting of restricted stock		$ 1
Exercise of stock options (in shares)		3,037,155
Exercise of stock options	4				4
Repurchase of Series A, Series B and Series D preferred stock (in shares)		(808,771)
Repurchase of Series A, Series B and Series D preferred stock	(4)				(1)	(3)
Stock-based compensation	13				13
Purchase of non- controlling interests	(5)				(5)
Capital distribution of non-controlling interests	(3)							(3)
Net loss	(339)					(341)		2
Shares outstanding, ending balance (in shares) at Dec. 31, 2019		83,748,443
Shareholders' equity (deficit), ending balance at Dec. 31, 2019	(733)	$ 0			57	(790)	0	0
Temporary Equity [Abstract]
Issuance of preferred stock (Series D, Series E, Series E-2) (in shares)												485,262		364,070
Issuance of preferred stock (Series D, Series E, Series E-1)												$ 2		$ 2
Temporary equity, shares outstanding, ending balance (in shares) at Dec. 31, 2020									0	0	0	0		0
Temporary equity, ending balance at Dec. 31, 2020									$ 0	$ 0	$ 0	$ 0		$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock (in shares)		1,389,585
Issuance of stock	1				1							$ 3	$ 3	$ 1	$ 1
Issuance of issuer stock rights in extinguishment of the 2019 Convertible Notes	213				213
Issuance of common stock in exchange for issuer stock rights (in shares)		21,460,401
Issuance of common stock in connection with acquisition (in shares)		111,742,632
Issuance of common stock in stock in connection with acquisition	889				889
Vesting of restricted stock (in shares)		1,461,844
Exercise of stock options (in shares)		5,638,019
Exercise of stock options	8				8
Stock-based compensation	$ 38				38
Conversion of common and preferred stock (in shares)	195,000,000	315,273,768							(40,089,513)	(23,840,816)	(29,070,700)	(63,956,146)		(158,316,593)
Conversion of common and preferred stock	$ 1,386				1,386				$ (10)	$ (20)	$ (81)	$ (260)		$ (1,015)
Net loss	(253)					(253)		0
Shares outstanding, ending balance (in shares) at Dec. 31, 2020		540,714,692
Shareholders' equity (deficit), ending balance at Dec. 31, 2020	1,553	$ 0			2,596	(1,043)	0	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of stock (in shares)		32,817,421
Issuance of stock	$ 857				857
Vesting of restricted stock (in shares)			1,370,447	24,004,565
Exercise of stock options (in shares)	8,919,000	8,919,289
Exercise of stock options	$ 15				15
Purchases of Capped Calls related to the 2026 Notes	(119)				(119)
Stock-based compensation	548				548
Other comprehensive income	(2)						(2)
Conversion of common and preferred stock (in shares)		8,200,151
Conversion of common and preferred stock	58				58
Net loss	(662)					(662)
Shares outstanding, ending balance (in shares) at Dec. 31, 2021		616,026,565
Shareholders' equity (deficit), ending balance at Dec. 31, 2021	$ 2,248	$ 0			$ 3,955	$ (1,705)	$ (2)	$ 0