Goodwill, Customer Relationships and Other Intangible Assets

3 Months Ended

Mar. 31, 2019

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill, Customer Relationships and Other Intangible Assets

Goodwill, Customer Relationships and Other Intangible Assets

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

	March 31, 2019		December 31, 2018
	(Dollars in millions)
Goodwill	$	9,360	9,360
Customer relationships, less accumulated amortization of $4,916 and $4,806	$	783	893
Other intangible assets, less accumulated amortization of $1,724 and $1,712	$	355	311

As of March 31, 2019, the gross carrying amount of goodwill, customer relationships and other intangible assets was $17.1 billion. The total amortization expense for intangible assets for the three months ended March 31, 2019 totaled $137 million and for the three months ended March 31, 2018 totaled $149 million.

We estimate that total amortization expense for intangible assets for the years ending December 31, 2019 through 2023 will be as follows:

	(Dollars in millions)
2019 (remaining nine months)	$	380
2020	457
2021	149
2022	46
2023	34