Revenue Recognition - Contract Cost Assets (Details) - USD ($) $ in Millions |
Mar. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Contract Cost Assets | ||
| Contract cost assets | $ 144 | $ 147 |
| Sales commissions | ||
| Contract Cost Assets | ||
| Contract cost assets | 142 | 145 |
| Installation costs | ||
| Contract Cost Assets | ||
| Contract cost assets | $ 2 | $ 2 |