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Property And Casualty Insurance, Minimum Capital Test, Minimum Supervisory Target Percentage

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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The entity's share of the profit (loss) of associates accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Profit (loss)]

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Financial Risk Management - Capital Management - Narrative (Details) € in Millions, $ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	May 18, 2018 EUR (€)	Apr. 17, 2018 USD ($)	Mar. 29, 2018 EUR (€)	Dec. 04, 2017 CAD ($)
Disclosure of detailed information about financial instruments [line items]
Capitalization	$ 23,845.6	$ 24,826.1
Share of profit of associates	221.1	200.5
Notional amount	$ 6,506.4	$ 6,396.9
Minimum supervisory target	150.00%
Unsecured senior notes
Disclosure of detailed information about financial instruments [line items]
Notional amount			€ 150.0	$ 600.0	€ 600.0	$ 650.0
Quess \| Investments accounted for using equity method
Disclosure of detailed information about financial instruments [line items]
Share of profit of associates	$ 889.9