Statutory Accounting Information (Tables)

12 Months Ended

Dec. 31, 2017

Staturory Accounting Information [Abstract]

Statutory Net Income And Statutory Surplus

The statutory net income (loss) and statutory capital and surplus are presented below:



(Dollars in millions)	Net income (loss)							Capital and surplus
	Years ended December 31,							At December 31,
	2017		2016		2015			2017		2016
The Cincinnati Insurance Company	$	401	$	434	$	534		$	5,094	$	4,686
The Cincinnati Casualty Company	21		11		12			392		360
The Cincinnati Indemnity Company	4		4		3			100		93
The Cincinnati Specialty Underwriters Insurance Company	58		57		49			436		372
The Cincinnati Life Insurance Company	12		2		(11		)	195		200

- Definition

Tabular disclosure of how the entity's reporting under GAAP as of the balance sheet date differs from the results based on prescribed and permitted accounting practices of the state or country of domicile in which a relevant statutory filing is made, or differences in results based on the National Association of Insurance Commissioners (NAIC) prescribed practices, or a combination thereof. Describes the accounting practices used and the related monetary effect on statutory surplus, net income, and risk-based capital. If an insurance enterprise's risk-based capital would have triggered a regulatory event had it not used a permitted practice, that fact is disclosed in the financial statements. Permitted statutory accounting practices include practices not prescribed but allowed by the domiciliary state insurance department regulatory authority.

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