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Amount of transfers of assets measured on a recurring basis out of Level 1 into Level 2 of the fair value hierarchy.

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Amount of transfers of assets measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 3.

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Fair Value Measurements (Details 3) - Recurring Fair Value Measurements - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Available-for-sale \| Fixed maturities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3	$ 6.7	$ 30.4	$ 26.2	$ 37.0
Transfers out of Level 3 into Level 2	29.7	7.2	91.8	44.4
Available-for-sale \| Corporate debt securities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3	6.7	30.4	26.2	30.9
Transfers out of Level 3 into Level 2	19.8	6.1	67.5	6.1
Available-for-sale \| Commercial mortgage-backed securities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3				6.1
Transfers out of Level 3 into Level 2		1.1		1.1
Available-for-sale \| Collateralized debt obligations
Fair Value Hierarchy Levels Transfers
Transfers out of Level 3 into Level 2				7.5
Available-for-sale \| Other debt obligations
Fair Value Hierarchy Levels Transfers
Transfers out of Level 3 into Level 2	9.9		24.3	29.7
Available-for-sale \| Equity securities
Fair Value Hierarchy Levels Transfers
Transfers out of Level 2 into Level 3		0.2		0.2
Separate account assets
Fair Value Hierarchy Levels Transfers
Transfers out of Level 1 into Level 2	0.9	11.7	2.0	15.4
Transfers out of Level 2 into Level 1	6.2	0.6	6.8	53.8
Transfers out of Level 2 into Level 3		0.1	0.1	2.1
Transfers out of Level 3 into Level 2	$ 0.1	$ 1.7	0.1	$ 7.5
Other investments
Fair Value Hierarchy Levels Transfers
Transfers out of Level 3 into Level 2			$ 35.0