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Other Financial Data - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Jun. 30, 2025 | Dec. 31, 2024
Other Financial Data [Line Items] |  |  |  |  |  |
Seller note | $ 41 |  | $ 41 |  |  | $ 37
Fair value of seller note | $ 0 |  | 0 |  | $ 0 | $ 50
Contract with customer, liability, revenue recognized |  |  | $ 69 | $ 73 |  |
Interest rate swaps |  |  |  |  |  |
Other Financial Data [Line Items] |  |  |  |  |  |
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration] | Other current assets |  | Other current assets |  |  | Other current assets
Derivative asset, current | $ 8 |  | $ 8 |  |  | $ 23
Derivative asset, noncurrent | $ 1 |  | $ 1 |  |  | $ 8
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration] | Other assets |  | Other assets |  |  | Other assets
Derivative liability, current | $ 1 |  | $ 1 |  |  | $ 0
Derivative liability, noncurrent | 0 |  | 0 |  |  | $ 0
Cost of Services, Exclusive of Depreciation and Amortization |  |  |  |  |  |
Other Financial Data [Line Items] |  |  |  |  |  |
Amortization expense | $ 8 | $ 6 | $ 21 | $ 18 |  |

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