Goodwill, Customer Relationships and Other Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of acquisition-related intangible assets

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

	September 30, 2018		December 31, 2017
	(Dollars in millions)
Goodwill	$	11,132	10,837
Customer relationships, less accumulated amortization of $659 and $126	$	7,801	8,845
Other intangible assets subject to amortization:
Trade names, less accumulated amortization of $24 and $4	106		126
Developed technology, less accumulated amortization of $51 and $9	295		252
Total other intangible assets, net	$	401	378

Schedule of estimated amortization expense of finite-lived acquisition-related intangible assets

We estimate that total amortization expense for intangible assets for the successor years ending December 31, 2018 through 2022 will be as follows:

	(Dollars in millions)
2018 (remaining three months)	$	202
2019	805
2020	805
2021	805
2022	794

Schedule of Goodwill

The following table shows the rollforward of goodwill from December 31, 2017 through September 30, 2018:

	(Dollars in millions)
As of December 31, 2017	$	10,837
Purchase accounting and other adjustments	353
Effect of foreign currency rate change	(58		)
As of September 30, 2018	$	11,132