Wyndham Hotels & Resorts, Inc. Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Contract Liabilities) (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 206	$ 216
Deferred initial franchise fee revenue
Disaggregation of Revenue [Line Items]
Contract liabilities	98	98
Deferred loyalty program revenue
Disaggregation of Revenue [Line Items]
Contract liabilities	53	54
Deferred co-branded credit card programs revenue
Disaggregation of Revenue [Line Items]
Contract liabilities	27	37
Deferred hotel management fee revenue
Disaggregation of Revenue [Line Items]
Contract liabilities	21	19
Deferred other revenue
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 7	$ 8