Earnings Per Share - Reconciliation of Weighted Average Number of Shares of Common Stock Outstanding In Calculating EPS (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Numerator:
Net income (loss) used to compute Basic EPS		$ 36	$ 24	$ 25	$ (35)
Net income (loss) used to compute Diluted EPS		$ 36	$ 24	$ 26	$ (35)
Denominator:
Weighted average shares used to compute Basic EPS		124,948	139,234	132,959	138,836
Weighted average effect of dilutive securities:
Stock-based awards (Note 9)		620	1,310	1,030	0
2026 Senior Notes (Note 6)		4,674	4,674	4,674	0
Weighted average shares used to compute Diluted EPS		130,242	145,218	138,663	138,836
Basic EPS		$ 0.29	$ 0.17	$ 0.19	$ (0.25)
Diluted EPS		$ 0.28	$ 0.17	$ 0.19	$ (0.25)
0.250% Senior Notes due April 1, 2026
Numerator:
Interest expense on 2026 Senior Notes, net of tax	[1]	$ 0	$ 0	$ 1	$ 0

[1] Interest expense, net of taxes, related to the 2026 Senior Notes which was included in the Diluted EPS calculation for both the three months ended June 30, 2025 and 2024 was not material.