REVENUES (Notes)

9 Months Ended

Sep. 30, 2019

Revenue from Contract with Customer [Abstract]

Revenue

Disaggregation of revenue

A disaggregation of revenue from contracts with customers is presented in our condensed consolidated statements of operations for the three and nine months ended September 30, 2019 and 2018. We have one reportable segment which comprises our entire operating business. 

Performance Obligations and Transaction Price Allocated to Remaining Performance Obligations

ASC 606 requires disclosure of the aggregate amount of transaction price that is allocated to performance obligations that have not yet been satisfied as of September 30, 2019. The guidance provides certain conditions (identified as "practical expedients") that limit this disclosure requirement. We have contracts that meet the following practical expedients provided by ASC 606:

1. The performance obligation is part of a contract that has an original expected duration of one year or less;

2. Revenue is recognized from the satisfaction of the performance obligations in the amount billable to our customer that corresponds directly with the value to the customer of our performance completed to date (i.e. “right-to-invoice” practical expedient); and/or

3. The variable consideration is allocated entirely to a wholly unsatisfied performance obligation or to a wholly unsatisfied promise to transfer a distinct service or a series of distinct services that are substantially the same and that have the same pattern of transfer to our customer (i.e. “series practical expedient”).

The following table shows our remaining performance obligations which primarily consists of the fixed consideration contained in our contracts as of September 30, 2019 (dollars in millions):

	Total
Total remaining performance obligation	$	6,262
Percentage expected to be recognized:
Remainder of 2019	3		%
2020	10		%

Contract Balances

The following table reflects the balance in our contract assets, which we classify as accounts receivable unbilled and present net in Receivables, and our contract liabilities, which we classify as deferred revenue and present in Accrued expenses and other current liabilities in our condensed consolidated balance sheet (in millions):

	September 30, 2019		December 31, 2018
Unbilled receivables	$	18	$	16
Deferred revenue	$	17	$	15

For the nine months ended September 30, 2019, revenue recognized that was included in deferred revenue in our condensed consolidated balance sheet at the beginning of the period totaled $14 million.