Goodwill and Acquired Intangible Assets - Schedule of Aggregate Amortization Expense for Acquired Intangible Assets (Details) - Amortization expense $ in Millions	12 Months Ended
	Dec. 31, 2025 USD ($)
Intangible Asset, Acquired, Finite-Lived [Line Items]
Actual 2025	$ 3
2026	3
2027	3
2028	1
2029	0
2030	$ 0