Revenue Recognition (Contract Liabilities) (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 371	$ 354
Deferred initial franchise fee revenues
Disaggregation of Revenue [Line Items]
Contract liabilities	155	151
Deferred loyalty program revenues
Disaggregation of Revenue [Line Items]
Contract liabilities	108	91
Deferred co-branded credit card program revenues
Disaggregation of Revenue [Line Items]
Contract liabilities	91	98
Deferred other revenues
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 17	$ 14

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.

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+ Details