Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Millions |
3 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Dec. 31, 2025 |
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| Related Party Transactions | |||
| Revenue | $ 840 | $ 621 | |
| Receivable from affiliates of American Express | 1,007 | $ 869 | |
| (Payable) to affiliates of American Express | (603) | (515) | |
| Commercial Agreements | Affiliate | |||
| Related Party Transactions | |||
| Revenue | 3 | 2 | |
| (Expenses) | (13) | (10) | |
| Receivable from affiliates of American Express | 3 | 3 | |
| (Payable) to affiliates of American Express | (23) | (25) | |
| Commercial and Operating Agreements with Expedia | Affiliate | |||
| Related Party Transactions | |||
| Revenue | 53 | 40 | |
| (Expenses) | 0 | $ (2) | |
| Receivable from affiliates of American Express | $ 51 | $ 48 | |
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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