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Products and Services Revenues (Tables)
 3 Months Ended
Mar. 31, 2014
Segment Reporting [Abstract]  
Schedule of operating revenues by products and services
Our operating revenues for our products and services consisted of the following revenue categorization for the three months ended March 31, 2014 and 2013:
 
Three Months Ended 
 March 31,
 
2014
 
2013
 
(Dollars in millions)
Strategic services
$
856

 
829

Legacy services
767

 
825

Affiliates and other services
588

 
505

Total operating revenues
$
2,211

 
2,159