Amount of earned premiums assumed from other entities.

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Amount of earned premiums ceded to other entities.

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Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned.

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

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-Number 210

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Amount of life insurance issued and outstanding assumed from other entities. Includes, but not limited to, dividends and adjustments to face value.

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Amount of life insurance issued and outstanding ceded to other entities. Includes, but not limited to, dividends and adjustments to face value.

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Amount before contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value.

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Amount after contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value.

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Schedule 4 - Reinsurance Schedule (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums, Life Insurance in Force	$ 20,565.9us-gaap_LifeInsuranceInForceGross				$ 21,006.0us-gaap_LifeInsuranceInForceGross				$ 20,565.9us-gaap_LifeInsuranceInForceGross	$ 21,006.0us-gaap_LifeInsuranceInForceGross	$ 21,340.4us-gaap_LifeInsuranceInForceGross
Direct Premiums Earned									1,831.1us-gaap_DirectPremiumsEarned	2,007.0us-gaap_DirectPremiumsEarned	2,105.6us-gaap_DirectPremiumsEarned
Ceded Premiums, Life Insurance in Force	541.5us-gaap_LifeInsuranceInForceCeded				576.4us-gaap_LifeInsuranceInForceCeded				541.5us-gaap_LifeInsuranceInForceCeded	576.4us-gaap_LifeInsuranceInForceCeded	610.4us-gaap_LifeInsuranceInForceCeded
Ceded to Other Companies									26.0us-gaap_CededPremiumsEarned	33.9us-gaap_CededPremiumsEarned	42.5us-gaap_CededPremiumsEarned
Assumed Premiums, Life Insurance in Force	217.8us-gaap_LifeInsuranceInForceAssumed				229.5us-gaap_LifeInsuranceInForceAssumed				217.8us-gaap_LifeInsuranceInForceAssumed	229.5us-gaap_LifeInsuranceInForceAssumed	242.9us-gaap_LifeInsuranceInForceAssumed
Assumed Premiums Earned									57.1us-gaap_AssumedPremiumsEarned	52.7us-gaap_AssumedPremiumsEarned	44.0us-gaap_AssumedPremiumsEarned
Premiums, Net, Life Insurance in Force	20,242.2us-gaap_LifeInsuranceInForceNet				20,659.1us-gaap_LifeInsuranceInForceNet				20,242.2us-gaap_LifeInsuranceInForceNet	20,659.1us-gaap_LifeInsuranceInForceNet	20,972.9us-gaap_LifeInsuranceInForceNet
Net Amount	451.5us-gaap_PremiumsEarnedNet	462.8us-gaap_PremiumsEarnedNet	470.3us-gaap_PremiumsEarnedNet	477.6us-gaap_PremiumsEarnedNet	495.6us-gaap_PremiumsEarnedNet	507.5us-gaap_PremiumsEarnedNet	512.8us-gaap_PremiumsEarnedNet	509.9us-gaap_PremiumsEarnedNet	1,862.2us-gaap_PremiumsEarnedNet	2,025.8us-gaap_PremiumsEarnedNet	2,107.1us-gaap_PremiumsEarnedNet
Life Insurance in Force Premiums, Percentage Assumed to Net	1.10%				1.10%				1.10%	1.10%	1.20%
Premiums, Percentage Assumed to Net									3.10%us-gaap_PremiumsPercentageAssumedToNet	2.60%us-gaap_PremiumsPercentageAssumedToNet	2.10%us-gaap_PremiumsPercentageAssumedToNet
Life Insurance Product Line [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Earned									387.5	392.4	392.8
Ceded to Other Companies									1.5	1.5	1.4
Assumed Premiums Earned									1.6	1.8	2.0
Net Amount									387.6	392.7	393.4
Premiums, Percentage Assumed to Net									0.40%	0.50%	0.50%
Accident and Health Insurance [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Earned									146.3	161.9	165.5
Ceded to Other Companies									0.5	0.6	0.4
Assumed Premiums Earned									2.8	0.1	0.1
Net Amount									148.6	161.4	165.2
Premiums, Percentage Assumed to Net									1.90%	0.10%	0.10%
Property, Liability and Casualty Insurance [Member]
Reinsurance Premiums for Insurance Companies, by Product Segment [Line Items]
Direct Premiums Earned									1,297.3	1,452.7	1,547.3
Ceded to Other Companies									24.0	31.8	40.7
Assumed Premiums Earned									52.7	50.8	41.9
Net Amount									$ 1,326.0	$ 1,471.7	$ 1,548.5
Premiums, Percentage Assumed to Net									4.00%	3.50%	2.70%