CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ (DEFICIT) EQUITY - USD ($) $ in Millions	Total	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Accumulated deficit
Balance at beginning of period, Common stock (in shares) at Dec. 31, 2021		863,912,613
Balance at beginning of period at Dec. 31, 2021	$ 7,293	$ 0	$ 11,169	$ 1	$ (3,877)
Increase (decrease) in stockholder's equity
Net loss	(862)				(862)
Shares issued in connection with stock option exercise, net of repurchases (in shares)		2,152,493
Shares issued in connection with stock option exercise, net of repurchases	6		6
Issuance of common stock in connection with Employee Stock Purchase Plan (in shares)		1,529,727
Issuance of common stock in connection with Employee Stock Purchase Plan	13		13
Issuance of common stock upon settlement of restricted stock units, net of shares withheld (in shares)		17,118,956
Issuance of common stock upon settlement of restricted stock units, net of shares withheld	(9)		(9)
Change in other comprehensive loss	(2)			(2)
Share-based compensation	515		515
Balance at end of period, Common stock (in shares) at Sep. 30, 2022		884,713,789
Balance at end of period at Sep. 30, 2022	6,954	$ 0	11,694	(1)	(4,739)
Balance at beginning of period, Common stock (in shares) at Jun. 30, 2022		878,257,164
Balance at beginning of period at Jun. 30, 2022	7,017	$ 0	11,581	0	(4,564)
Increase (decrease) in stockholder's equity
Net loss	(175)				(175)
Shares issued in connection with stock option exercise, net of repurchases (in shares)		289,539
Shares issued in connection with stock option exercise, net of repurchases	1		1
Issuance of common stock upon settlement of restricted stock units, net of shares withheld (in shares)		6,167,086
Issuance of common stock upon settlement of restricted stock units, net of shares withheld	(2)		(2)
Change in other comprehensive loss	(1)			(1)
Share-based compensation	114		114
Balance at end of period, Common stock (in shares) at Sep. 30, 2022		884,713,789
Balance at end of period at Sep. 30, 2022	6,954	$ 0	11,694	(1)	(4,739)
Balance at beginning of period, Common stock (in shares) at Dec. 31, 2022		892,751,571
Balance at beginning of period at Dec. 31, 2022	6,956	$ 0	11,861	0	(4,905)
Increase (decrease) in stockholder's equity
Net loss	(571)				(571)
Shares issued in connection with stock option exercise, net of repurchases (in shares)		1,125,929
Shares issued in connection with stock option exercise, net of repurchases	2		2
Issuance of common stock in connection with Employee Stock Purchase Plan (in shares)		1,225,069
Issuance of common stock in connection with Employee Stock Purchase Plan	9		9
Issuance of common stock upon settlement of restricted stock units, net of shares withheld (in shares)		22,729,566
Issuance of common stock upon settlement of restricted stock units, net of shares withheld	(9)		(9)
Repurchase and retirement of Class A common stock (in shares)		(55,273,469)
Repurchase and retirement of Class A common stock	(611)		(611)		0
Change in other comprehensive loss	(4)			(4)
Share-based compensation	802		802
Balance at end of period, Common stock (in shares) at Sep. 30, 2023		862,558,666
Balance at end of period at Sep. 30, 2023	6,574	$ 0	12,054	(4)	(5,476)
Balance at beginning of period, Common stock (in shares) at Jun. 30, 2023		909,694,702
Balance at beginning of period at Jun. 30, 2023	7,187	$ 0	12,581	(3)	(5,391)
Increase (decrease) in stockholder's equity
Net loss	(85)				(85)
Shares issued in connection with stock option exercise, net of repurchases (in shares)		328,963
Issuance of common stock upon settlement of restricted stock units, net of shares withheld (in shares)		7,808,470
Issuance of common stock upon settlement of restricted stock units, net of shares withheld	(4)		(4)
Repurchase and retirement of Class A common stock (in shares)		(55,273,469)
Repurchase and retirement of Class A common stock	(611)		(611)
Change in other comprehensive loss	(1)			(1)
Share-based compensation	88		88
Balance at end of period, Common stock (in shares) at Sep. 30, 2023		862,558,666
Balance at end of period at Sep. 30, 2023	$ 6,574	$ 0	$ 12,054	$ (4)	$ (5,476)