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

Intangible Assets (Goodwill and Intangible Assets) (Details)

Intangible Assets (Goodwill and Intangible Assets) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Goodwill	$ 1,539	$ 1,547	$ 423
Gross Carrying Amount	1,038	1,046
Accumulated Amortization	485	452
Net Carrying Amount	553	594
Franchise agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	895	895
Accumulated Amortization	460	434
Net Carrying Amount	435	461
Management agreements
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	137	140
Accumulated Amortization	23	13
Net Carrying Amount	114	127
Trademarks
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	3	5
Accumulated Amortization	1	1
Net Carrying Amount	$ 2	4
Useful life	20 years
Other
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 3	6
Accumulated Amortization	1	4
Net Carrying Amount	2	2
Trademarks
Finite-Lived Intangible Assets [Line Items]
Unamortized Intangible Assets	$ 1,393	$ 1,393
Minimum \| Franchise agreements
Finite-Lived Intangible Assets [Line Items]
Useful life	20 years
Minimum \| Management agreements
Finite-Lived Intangible Assets [Line Items]
Useful life	7 years
Minimum \| Other
Finite-Lived Intangible Assets [Line Items]
Useful life	1 year
Maximum \| Franchise agreements
Finite-Lived Intangible Assets [Line Items]
Useful life	40 years
Maximum \| Management agreements
Finite-Lived Intangible Assets [Line Items]
Useful life	20 years
Maximum \| Other
Finite-Lived Intangible Assets [Line Items]
Useful life	8 years
Weighted Average \| Franchise agreements
Finite-Lived Intangible Assets [Line Items]
Useful life	32 years
Weighted Average \| Management agreements
Finite-Lived Intangible Assets [Line Items]
Useful life	14 years
Weighted Average \| Other
Finite-Lived Intangible Assets [Line Items]
Useful life	5 years