Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended						9 Months Ended
	Sep. 30, 2025	Jun. 30, 2025	Mar. 31, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2025	Sep. 30, 2024
Earnings Per Share [Abstract]
Net Income	$ 9	$ 54	$ 91	$ 90	$ 160	$ 108	$ 154	$ 358
Weighted average common shares outstanding - basic	70			70			70	71
Dilutive effect of employee stock plans (in shares)	0			0			0	0
Shares used for diluted earnings per share (in shares)	70			71			70	72
Net income per share, basic (in dollars per share)	$ 0.13			$ 1.28			$ 2.20	$ 5.01
Net income per share, diluted (in dollars per share)	$ 0.13			$ 1.28			$ 2.20	$ 5.00