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Summary of Significant Accounting Policies (Tables)
 3 Months Ended
Mar. 31, 2016
Summary Of Significant Accounting Policies [Abstract]  
Schedule Of Revenue From External Customers



 

 

 

 

 

 

 

 



 

 

 

 

 

 

 

 



 

For the three months ended

 

 



 

March 31,

 

 



 

 

 

 

 

 

 

 

($ in millions)

 

2016

 

2015

 

 



 

 

 

 

 

 

 

 

Voice services

 

$

 467 

 

$

 525 

 

 

Data and Internet services

 

 

 587 

 

 

 575 

 

 

Other

 

 

 135 

 

 

 133 

 

 

Customer revenue

 

 

 1,189 

 

 

 1,233 

 

 

Switched access and subsidy

 

 

 166 

 

 

 138 

 

 

Total revenue

 

$

 1,355 

 

$

 1,371