Goodwill and Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill

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

	CNA Financial		Boardwalk Pipelines		Corporate		Total
(In millions)
Balance, December 31, 2019	$	112	$	237	$	418	$	767
Acquisition					18		18
Balance, December 31, 2020	112		237		436		785
Deconsolidation of Altium Packaging (see Note 2)					(436)		(436)
Balance, December 31, 2021	$	112	$	237	$	—	$	349

Other Intangible Assets

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

	December 31, 2021				December 31, 2020
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
(In millions)
Finite-lived intangible assets:
Customer relationships	$	59	$	17	$	647	$	111
Other	19		15		71		61
Total finite-lived intangible assets	78		32		718		172
Indefinite-lived intangible assets	63				64
Total other intangible assets	$	141	$	32	$	782	$	172