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Quarterly Financial Data - Unaudited
12 Months Ended
Dec. 31, 2012
Quaterly Financial Data Unaudited [Abstract]  
Quarterly Financial Information [Text Block]
Quarterly Financial Data—Unaudited
 
Dollars in millions
 
 
Successor
2012
 
Fourth
 
Third
 
Second
 
First
Revenues
 
$
5,428

 
$
5,343

 
$
5,062

 
$
5,002

Operating income
 
$
1,640

 
$
1,669

 
$
1,438

 
$
1,265

Net income
 
$
932

 
$
937

 
$
802

 
$
701



 
 
Successor
2011
 
Fourth
 
Third
 
Second
 
First
Revenues
 
$
5,264

 
$
4,961

 
$
4,790

 
$
4,533

Operating income
 
$
1,617

 
$
1,380

 
$
1,209

 
$
1,104

Net income
 
$
909

 
$
766

 
$
690

 
$
607