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Property, Plant and Equipment (Tables)
6 Months Ended
Jun. 30, 2012
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant and Equipment
The components of property, plant and equipment, and the related accumulated depreciation were as follows:
 
June 30,
2012
 
December 31,
2011
 
(in millions)
Land
$
329

 
$
333

Network equipment, site costs and related software
36,252

 
37,600

Buildings and improvements
4,880

 
4,895

Non-network internal use software, office equipment and other
1,964

 
2,111

Construction in progress
2,419

 
1,752

Less accumulated depreciation
(32,883
)
 
(32,682
)
Property, plant and equipment, net
$
12,961

 
$
14,009