Products and Services Revenues (Tables)

12 Months Ended

Dec. 31, 2020

Revenues [Abstract]

Schedule of operating revenues by product and services

Our operating revenue for our products and services consisted of the following categories:

	Years Ended December 31,
	2020		2019	2018
	(Dollars in millions)
IP and Data Services	$	3,587	3,655	3,728
Transport and Infrastructure	2,615		2,544	2,591
Voice and Collaboration	1,423		1,385	1,413
Other	100		9	—
Affiliate Services	208		180	107
Total operating revenue	$	7,933	7,773	7,839

Schedule of operating revenues by geographic region

The following tables present total assets as of the years ended December 31, 2020 and 2019 as well as operating revenue for the years ended December 31, 2020, 2019 and 2018 by geographic region:

	Total Assets
	As of December 31,
	2020		2019
	(Dollars in millions)
North America	$	23,511	24,144
Europe, Middle East and Africa	3,059		2,842
Latin America	2,006		2,112
Total	$	28,576	29,098

	Revenue
	Years Ended December 31,
	2020		2019	2018
	(Dollars in millions)
North America	$	6,411	6,307	6,358
Europe, Middle East and Africa	785		719	744
Latin America	737		747	737
Total	$	7,933	7,773	7,839