Goodwill and Intangible Assets - Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Goodwill and Other Intangible Assets | ||
| Gross carrying amount | $ 4,592 | $ 4,610 |
| Accumulated amortization | (4,190) | (4,084) |
| Net carrying amount | $ 402 | 526 |
| Weighted average useful life at time of acquisition | 9 years | |
| Television distribution rights | ||
| Goodwill and Other Intangible Assets | ||
| Gross carrying amount | $ 535 | 592 |
| Accumulated amortization | (489) | (509) |
| Net carrying amount | 46 | 83 |
| Customer relationships | ||
| Goodwill and Other Intangible Assets | ||
| Gross carrying amount | 2,816 | 2,825 |
| Accumulated amortization | (2,722) | (2,684) |
| Net carrying amount | 94 | 141 |
| Other | ||
| Goodwill and Other Intangible Assets | ||
| Gross carrying amount | 1,241 | 1,193 |
| Accumulated amortization | (979) | (891) |
| Net carrying amount | $ 262 | $ 302 |