Goodwill and Other Intangible Assets

12 Months Ended

Dec. 31, 2020

Goodwill and Other Intangible Assets [Abstract]

Goodwill and Other Intangible Assets [Text Block]

Note 7.  Goodwill and Other Intangible Assets

A summary of the changes in the carrying amount of goodwill is as follows:

	CNA		Boardwalk
	Financial		Pipelines		Corporate		Total
(In millions)
Balance, December 31, 2018	$	110	$	237	$	318	$	665
Acquisition						100		100
Other adjustments		2						2
Balance, December 31, 2019		112		237		418		767
Acquisitions						18		18
Balance, December 31, 2020	$	112	$	237	$	436	$	785

The increases as of December 31, 2020 and 2019 reflect the acquisitions made by Altium Packaging in 2020 and 2019. See Note 2 for further discussion on these acquisitions.

A summary of the net carrying amount of other intangible assets is as follows:

	December 31, 2020				December 31, 2019
	Gross				Gross
	Carrying		Accumulated		Carrying		Accumulated
	Amount		Amortization		Amount		Amortization
(In millions)
Finite-lived intangible assets:
Customer relationships	$	647	$	111	$	611	$	76
Other		71		61		71		34
Total finite-lived intangible assets		718		172		682		110
Indefinite-lived intangible assets		64				75
Total other intangible assets	$	782	$	172	$	757	$	110

The balance as of December 31, 2020 and 2019 includes assets from acquisitions made by Altium Packaging.

Amortization expense for the years ended December 31, 2020, 2019 and 2018 of $61 million, $45 million and $32 million is reported in Operating expenses and other on the Consolidated Statements of Operations. At December 31, 2020, estimated amortization expense in each of the next five years is approximately $41 million in 2021, $41 million in 2022, $40 million in 2023, $38 million in 2024 and $36 million in 2025.