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Revenue Recognition - Additional Information, Contract Costs (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024 | Jan. 01, 2025 | Dec. 31, 2024 | Jan. 01, 2024
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |  |
Revenue recognized from prior year contract liability | $ 18 | $ 13 | $ 140 | $ 148 |  |  |
Contract liabilities | $ 231 |  | $ 231 |  | $ 244 | $ 244 | $ 269
Minimum |  |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |  |
Contract term |  |  | 1 year |  |  |  |
Maximum |  |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |  |
Contract term |  |  | 5 years |  |  |  |
Weighted Average | Mass Markets Customers, Average Contract Life |  |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |  |
Length of customer life |  |  | 47 months |  |  |  |
Weighted Average | Business Customer, Average Contract Life |  |  |  |  |  |  |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |  |  |  |  |  |  |
Length of customer life |  |  | 34 months |  |  |  |

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