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v3.25.3

Nature of Operations and Basis of Presentation - Narrative (Details) $ in Millions |  |  | 9 Months Ended |
--- | --- | --- | --- | ---
Oct. 10, 2025 USD ($) | Apr. 29, 2025 | Sep. 30, 2025 USD ($) | Sep. 30, 2025 USD ($) segment | Sep. 30, 2025 USD ($) Segment | Dec. 31, 2024 USD ($)
Business Combination [Line Items] |  |  |  |  |  |
Number of reportable segments |  |  |  | 5 | 5 |
Restricted cash |  |  | $ 0 | $ 0 | $ 0 | $ 0
Contract asset |  |  | 81 | 81 | 81 | 69
Unearned revenue |  |  | 3,200 |  |  |
Capitalized contract costs |  |  | $ 314 | $ 314 | $ 314 | $ 291
Subsequent Event |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Total enterprise value | $ 3,100 |  |  |  |  |
Minimum |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Amortization period of capitalized contract cost |  |  | 2 years | 2 years | 2 years |
Maximum |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Amortization period of capitalized contract cost |  |  | 5 years | 5 years | 5 years |
Scenario, Plan | Minimum | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Expected term of completion for spinoff transaction |  | 12 months |  |  |  |
Scenario, Plan | Maximum | Disposal Group, Disposed of by Means Other than Sale, Not Discontinued Operations, Spinoff |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Expected term of completion for spinoff transaction |  | 18 months |  |  |  |
OSTTRA | Subsequent Event |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Cash proceeds from sale of equity method investments | 1,500 |  |  |  |  |
After tax proceeds from sale of equity method investments | 1,400 |  |  |  |  |
Pre-tax gain on sale | 270 |  |  |  |  |
Gain on sale after tax | $ 180 |  |  |  |  |
OSTTRA | Corporate Joint Venture |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Investment in joint venture percentage |  |  | 50.00% | 50.00% | 50.00% |
Noncontrolling interest ownership by noncontrolling owners percentage |  |  | 50.00% | 50.00% | 50.00% |
OSTTRA | Corporate Joint Venture | Subsequent Event |  |  |  |  |  |
Business Combination [Line Items] |  |  |  |  |  |
Investment in joint venture percentage | 50.00% |  |  |  |  |
Noncontrolling interest ownership by noncontrolling owners percentage | 50.00% |  |  |  |  |

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