Goodwill and Purchased Intangible Assets - Amortization Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 6	$ 8	$ 12	$ 15
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
Remainder of 2025	13		13
2026	23		23
2027	19		19
2028	9		9
2029	5		5
2030	$ 5		$ 5