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Statutory Financial Information (Tables)

12 Months Ended

Dec. 31, 2017

Statutory Financial Information [Abstract]

Schedule of combined statutory capital and surplus and statutory net income (loss)



	December 31
(in millions of U.S. dollars)	2017		2016
Statutory capital and surplus
Property and casualty	$	40,498	$	38,734
Life	$	1,507	$	1,225



	Year Ended December 31
(in millions of U.S. dollars)	2017		2016		2015
Statutory net income (loss)
Property and casualty	$	8,123	$	6,903	$	2,712
Life	$	74	$	55	$	(148	)

- 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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