Products and Services Revenue (Tables)

9 Months Ended

Sep. 30, 2020

Revenue from Contract with Customer [Abstract]

Disaggregation of revenue

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

	Three Months Ended September 30,			Nine Months Ended September 30,
	2020		2019	2020	2019
	(Dollars in millions)
IP and Data Services	$	130	161	397	446
Transport and Infrastructure	649		703	1,957	2,100
Voice and Collaboration	376		397	1,151	1,234
IT and Managed Services	1		1	2	3
Regulatory Revenue	44		48	135	143
Affiliate Services	601		701	1,876	2,143
Total operating revenue	$	1,801	2,011	5,518	6,069