Products and Services Revenues (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Schedule of operating revenues by product and services

Our total revenues for our products and services consisted of the following categories:

	Successor		Predecessor
	Period Ended December 31, 2017		Period Ended October 31, 2017	Year Ended December 31, 2016	Year Ended December 31, 2015
	(Dollars in millions)
Core network services revenues	$	1,331	6,543	7,767	7,757
Wholesale voice services	60		327	406	473
Affiliate revenues	16		—	—	—
Total operating revenues	$	1,407	6,870	8,173	8,230

Schedule of operating revenues by geographic region

The following table presents operating revenues for the predecessor period ended October 31, 2017 and the successor period ended December 31, 2017 as well as total assets as of the successor date of December 31, 2017 by geographic region:

	Total Assets		Revenues
	Successor		Successor	Predecessor
	December 31, 2017		Period Ended December 31, 2017	Period Ended October 31, 2017
	(Dollars in millions)
North America	$	27,776	1,155	5,651
EMEA	1,192		128	607
Latin America	4,167		124	612
Total	$	33,135	1,407	6,870