CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Millions	Total	Common Stock and Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income
Beginning balance at Dec. 31, 2023	$ 78	$ 976	$ (896)	$ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		6
Stock based compensation expense		55
Net income	196		196
Common stock dividends			(37)
Repurchase of common stock			(155)
Awards effectively repurchased for required employee withholding taxes			(18)
Other comprehensive income	4			4
Ending balance at Sep. 30, 2024	129	1,037	(910)	2
Beginning balance at Jun. 30, 2024	100	1,021	(916)	(5)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		0
Stock based compensation expense		16
Net income	45		45
Common stock dividends			(12)
Repurchase of common stock			(21)
Awards effectively repurchased for required employee withholding taxes			(6)
Other comprehensive income	7			7
Ending balance at Sep. 30, 2024	129	1,037	(910)	2
Beginning balance at Dec. 31, 2024	69	1,056	(984)	(3)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		6
Stock based compensation expense		50
Net income	156		156
Common stock dividends			(40)
Repurchase of common stock			(122)
Awards effectively repurchased for required employee withholding taxes			(12)
Other comprehensive income	3			3
Ending balance at Sep. 30, 2025	110	1,112	(1,002)	0
Beginning balance at Jun. 30, 2025	107	1,095	(988)	0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock for employee stock purchase plan		0
Stock based compensation expense		17
Net income	34		34
Common stock dividends			(13)
Repurchase of common stock			(31)
Awards effectively repurchased for required employee withholding taxes			(4)
Other comprehensive income	0			0
Ending balance at Sep. 30, 2025	$ 110	$ 1,112	$ (1,002)	$ 0