Shareholders Equity and Dividend Restrictions (Tables)

12 Months Ended

Dec. 31, 2017

Shareholders Equity And Dividend Restrictions [Abstract]

(In billions)	2017		2016		2015
Net income	$	2.5	$	2.0	$	2.1
Surplus	$	10.4	$	8.5	$	8.0

(In billions)	2017
Minimum statutory surplus required by regulators	$	3.2
Investments on deposit with regulatory bodies	$	0.6
Maximum dividend distributions permitted in 2018 without regulatory approval	$	1.6
Maximum loans to the parent company permitted without regulatory approval	$	1.3
Restricted GAAP net assets of Cigna Corporation's subsidiaries	$	12.0

- 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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