Organization and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

(dollars in millions)	As Previously Reported		Adjustment			Revised Reporting (1)
Year Ended December 31, 2013
Cost of Revenue	$	2,471	$	(2,471	)	$	—
Network Access Costs	—		2,471			2,471
Network Related Expenses	—		1,214			1,214
Selling, General and Administrative Expenses	2,376		(1,214		)	1,162
Total Costs and Expenses	5,647		—			5,647
Year Ended December 31, 2012
Cost of Revenue	2,602		(2,602		)	—
Network Access Costs	—		2,602			2,602
Network Related Expenses	—		1,249			1,249
Selling, General and Administrative Expenses	2,450		(1,249		)	1,201
Total Costs and Expenses	5,801		—			5,801

Property, Plant and Equipment

Depreciation and amortization for the Company's property, plant and equipment are computed using the straight-line method based on the following estimated useful lives:

Facility and Leasehold Improvements	15	-	40	years
Network Infrastructure (including fiber and conduit)	25	-	50	years
Operating Equipment	5	-	15	years
Furniture, Fixtures, Office Equipment and Other	3	-	7	years

The components of the Company's property, plant and equipment as of December 31, 2014 and 2013 are as follows (dollars in millions):

	Cost		Accumulated Depreciation			Net
December 31, 2014
Land	$	192	$	—		$	192
Land Improvements	73		(50		)	23
Facility and Leasehold Improvements	2,489		(1,265		)	1,224
Network Infrastructure	8,941		(3,447		)	5,494
Operating Equipment	7,217		(4,669		)	2,548
Furniture, Fixtures and Office Equipment	255		(177		)	78
Other	29		(21		)	8
Construction-in-Progress	293		—			293
	$	19,489	$	(9,629	)	$	9,860
December 31, 2013
Land	$	193	$	—		$	193
Land Improvements	72		(47		)	25
Facility and Leasehold Improvements	2,207		(1,193		)	1,014
Network Infrastructure	8,505		(3,279		)	5,226
Operating Equipment	6,057		(4,381		)	1,676
Furniture, Fixtures and Office Equipment	196		(168		)	28
Other	22		(21		)	1
Construction-in-Progress	77		—			77
	$	17,329	$	(9,089	)	$	8,240

Change in Accounting Estimate

The carrying values of assets subject to these revisions were (in millions):

	January 1, 2014
IP Equipment	$	222
Racks and Cabinets	114
Facility Equipment	151
	$	487

The change in estimated useful lives of the Company’s property, plant and equipment resulted in less depreciation expense than would have otherwise been recorded and in the following increase in net income and net income per share for the year ended December 31, 2014 (in millions, except per share amounts):

Net Income	$	90
Basic Net Income per Share	$	0.35
Diluted Net Income per Share	$	0.35