Revenues from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2018

Revenue from Contract with Customer [Abstract]

Contract Liabilities

The following table summarizes the activity of our contract liabilities during the year ended December 31, 2018:

	in millions
Balance as of December 31, 2017	$	1,087
Cash received in advance and not recognized as revenue(1)	377
Revenue recognized(1)	(229		)
Other(2)	(175		)
Balance as of December 31, 2018	$	1,060

____________

⁽¹⁾  Primarily related to Hilton Honors.

⁽²⁾  Primarily the result of changes in estimated transaction prices for our performance obligations related to points issued under Hilton Honors, which had no effect on revenues.