Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 12

-Section 13

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 45

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The portion of earnings or loss from continuing operations before income taxes that is attributable to domestic operations.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(h)(1)(i))

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Amount of interest income earned from interest bearing assets not separately disclosed.

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Derivatives Foreign Currency Swap (Details) $ in Millions, ¥ in Billions	3 Months Ended		6 Months Ended
	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2014 USD ($)	Apr. 28, 2015 USD ($)	Apr. 28, 2015 JPY (¥)
HG Global
Derivative [Line Items]
Income (Loss) from Continuing Operations before Income Taxes, Domestic	$ 3.1	$ 5.0	$ 8.6	$ 9.6
Currency Swap [Member] \| Sirius Group
Derivative [Line Items]
Derivative, fair value, net	(2.7)		(2.7)
Currency Swap [Member] \| Sweden, Kronor \| Sirius Group
Derivative [Line Items]
Notional amount					$ 50.0
Currency Swap [Member] \| Sweden, Kronor \| Sirius Group
Derivative [Line Items]
Notional amount \| ¥						¥ 0.1
Surplus Note \| BAM
Derivative [Line Items]
Interest Income, Other	$ 3.9	$ 4.0	$ 7.9	$ 7.9