Aggregate amount of quantifiable guarantee agreements.

No definition available.

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- Definition

Aggregate amount of quantifiable indemnification agreements.

+ References

No definition available.

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- Definition

Commitments [Line Items]

+ References

No definition available.

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- Definition

Increase decrease in premium development recognized.

+ References

No definition available.

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- Definition

Increase in interest expense.

+ References

No definition available.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 4
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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
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- Definition

Amount of accrued obligation to policyholders that relates to insured events for long-duration contracts.

+ References

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Commitments and Contingencies - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Commitments [Line Items]
Interest expense	$ 143	$ 139	$ 284	$ 281
Future policy benefits	10,667		10,667		$ 11,179
CNA Financial [Member]
Commitments [Line Items]
Aggregate amount related to indemnification agreements	375		375
Aggregate amount related to quantifiable guarantees	252		252
Potential amount of future payments under guarantees	1,800		1,800
Increase (decrease) in premium development recognized		1		(37)
Increase in interest expense		$ 1		$ 6
CNA Financial [Member] \| Workers Compensation Policy [Member]
Commitments [Line Items]
Interest expense			1
Future policy benefits	$ 47		$ 47