Intangible Assets (Change in Goodwill) (Details) - USD ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
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| Goodwill [Roll Forward] | ||
| Goodwill, Beginning | $ 1,525 | $ 1,525 |
| Goodwill, Other Increase (Decrease) | 0 | 0 |
| Goodwill, Ending | 1,525 | 1,525 |
| Hotel Franchising | ||
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning | 1,441 | |
| Goodwill, Other Increase (Decrease) | 0 | 0 |
| Goodwill, Ending | 1,441 | |
| Hotel Management | ||
| Goodwill [Roll Forward] | ||
| Goodwill, Beginning | 84 | |
| Goodwill, Other Increase (Decrease) | 0 | $ 0 |
| Goodwill, Ending | $ 84 | |
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- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of increase (decrease) of asset representing future economic benefit from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized, classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. No definition available.
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