XML 55 R42.htm IDEA: XBRL DOCUMENT v3.22.4

Other Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2022

Intangible Assets, Gross (Excluding Goodwill) [Abstract]

Schedule of Other Intangible Assets

Other intangible assets are presented in the following table.

December 31									2022												2021
(In millions)			Economic Useful Life						Gross Carrying Amount						Accumulated Amortization						Gross Carrying Amount						Accumulated Amortization
Finite-lived intangible assets:
Trade name			8 years						$	6					$	6					$	7					$	7
Distribution channel			15 years						10						7						11						7
Total finite-lived intangible assets									16						13						18						14
Indefinite-lived intangible assets:
Syndicate capacity									42												47
Agency force									16												16
Insurance licenses									10												—
Total indefinite-lived intangible assets									68												63
Total other intangible assets									$	84					$	13					$	81					$	14

X

- Definition

Schedule of Other Intangible Assets [Table Text Block]

+ References

No definition available.

+ Details

Name:	cna_ScheduleofOtherIntangibleAssetsTableTextBlock
Namespace Prefix:	cna_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_IntangibleAssetsGrossExcludingGoodwillAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration