Goodwill, Customer Relationships and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2014

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of goodwill and other intangible assets

Goodwill, customer relationships and other intangible assets consisted of the following:

	As of December 31,
	2014		2013
	(Dollars in millions)
Goodwill	$	20,755	20,674
Customer relationships, less accumulated amortization of $4,682 and $3,641	4,893		5,935
Indefinite-life intangible assets	268		321
Other intangible assets subject to amortization
Capitalized software, less accumulated amortization of $1,533 and $1,193	1,338		1,415
Trade names and patents, less accumulated amortization of $196 and $208	41		66
Total other intangible assets, net	$	1,647	1,802

Schedule of estimated amortization expense for intangible assets

We estimate that total amortization expense for intangible assets for the years ending December 31, 2015 through 2019 will be as follows:

	(Dollars in millions)
2015	$	1,244
2016	1,145
2017	1,036
2018	922
2019	805

Schedule of goodwill attributable to segments

The following table shows the rollforward of goodwill assigned to our reportable segments from the January 3, 2013 reorganization through December 31, 2014.

	Business		Consumer		Wholesale		Hosting		Total
	(Dollars in millions)
As of January 3, 2013	$	6,363	10,348		3,274		1,642		21,627
Acquisitions	—		—		—		139		139
Impairment	—		—		—		(1,092	)	(1,092	)
As of December 31, 2013	$	6,363	10,348		3,274		689		20,674
Purchase accounting adjustments	—		—		—		(11	)	(11	)
November 1, 2014 reorganization	4,022		(70	)	(3,274	)	(678	)	—
Acquisitions	92		—		—		—		92
As of December 31, 2014	$	10,477	10,278		—		—		20,755

As of January 3, 2013, we assigned our aggregate goodwill balance to our then four reportable segments as follows.

	As of January 3, 2013
	(Dollars in millions)
Business	6,363
Consumer	10,348
Wholesale	3,274
Hosting	1,642
Total goodwill	$	21,627