Description of Business, Basis of Presentation and Significant Accounting Policies - Aggregate Amortization Expense for Internal-Use Software (Details) - Internal-use software amortization expense $ in Millions	12 Months Ended
Dec. 31, 2023 USD ($)
Acquired Intangible Assets Amortization [Line Items]
Actual 2023	$ 5
2024	4
2025	2
2026	2
2027	2
2028	$ 2

Description of Business, Basis of Presentation and Significant Accounting Policies - Aggregate Amortization Expense for Internal-Use Software (Details) - Internal-use software amortization expense
$ in Millions

12 Months Ended

Dec. 31, 2023

USD ($)

Acquired Intangible Assets Amortization [Line Items]

$ 5

$ 2