CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS’ EQUITY - USD ($) $ in Millions	Total	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2023		677,636,163
Beginning balance at Dec. 31, 2023	$ 967	$ 0	$ 4,301	$ (3,333)	$ (1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for settlement of RSUs, net of shares withheld for participant taxes (in shares)		9,197,946
Exercise of stock options (in shares)		109,357
Issuance of common stock under employee stock purchase plan, net of shares withheld for participant taxes (in shares)		1,617,328
Issuance of common stock under employee stock purchase plan, net of shares withheld for participant taxes	2		2
Stock-based compensation	38		38
Other comprehensive income	1				1
Net loss	(109)			(109)
Ending balance (in shares) at Mar. 31, 2024		688,560,794
Ending balance at Mar. 31, 2024	$ 899	$ 0	4,341	(3,442)	0
Beginning balance (in shares) at Dec. 31, 2024	719,990,121	719,990,121
Beginning balance at Dec. 31, 2024	$ 713	$ 0	4,438	(3,725)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for settlement of RSUs, net of shares withheld for participant taxes (in shares)		5,873,511
Issuance of common stock for settlement of RSUs, net of shares withheld for participant taxes	$ 1		1
Exercise of stock options (in shares)	28,000	28,483
Exercise of stock options	$ 0
Issuance of common stock under employee stock purchase plan, net of shares withheld for participant taxes (in shares)		943,339
Issuance of common stock under employee stock purchase plan, net of shares withheld for participant taxes	1		1
Stock-based compensation	15		15
Other comprehensive income	0
Net loss	$ (85)			(85)
Ending balance (in shares) at Mar. 31, 2025	726,835,454	726,835,454
Ending balance at Mar. 31, 2025	$ 645	$ 0	$ 4,455	$ (3,810)	$ 0