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v2.4.1.9

Schedule IV Reinsurance (Detail) (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 |  |  |  |  |  |  |  |  |  |  |
Direct Premiums, Life Insurance in Force | $ 790,952.1 us-gaap_LifeInsuranceInForceGross |  |  |  | $ 781,495.9 us-gaap_LifeInsuranceInForceGross |  |  |  | $ 790,952.1 us-gaap_LifeInsuranceInForceGross | $ 781,495.9 us-gaap_LifeInsuranceInForceGross | $ 832,587.5 us-gaap_LifeInsuranceInForceGross
Ceded Premiums, Life Insurance in Force | 24,416.7 us-gaap_LifeInsuranceInForceCeded |  |  |  | 25,904.7 us-gaap_LifeInsuranceInForceCeded |  |  |  | 24,416.7 us-gaap_LifeInsuranceInForceCeded | 25,904.7 us-gaap_LifeInsuranceInForceCeded | 28,658.7 us-gaap_LifeInsuranceInForceCeded
Assumed Premiums, Life Insurance in Force | 999.7 us-gaap_LifeInsuranceInForceAssumed |  |  |  | 1,026.2 us-gaap_LifeInsuranceInForceAssumed |  |  |  | 999.7 us-gaap_LifeInsuranceInForceAssumed | 1,026.2 us-gaap_LifeInsuranceInForceAssumed | 1,073.8 us-gaap_LifeInsuranceInForceAssumed
Premiums, Net, Life Insurance in Force | 767,535.1 us-gaap_LifeInsuranceInForceNet |  |  |  | 756,617.4 us-gaap_LifeInsuranceInForceNet |  |  |  | 767,535.1 us-gaap_LifeInsuranceInForceNet | 756,617.4 us-gaap_LifeInsuranceInForceNet | 805,002.6 us-gaap_LifeInsuranceInForceNet
Life Insurance in Force Premiums, Percentage Assumed to Net | 0.10%us-gaap_LifeInsuranceInForcePercentageAssumedToNet |  |  |  | 0.10%us-gaap_LifeInsuranceInForcePercentageAssumedToNet |  |  |  | 0.10%us-gaap_LifeInsuranceInForcePercentageAssumedToNet | 0.10%us-gaap_LifeInsuranceInForcePercentageAssumedToNet | 0.10%us-gaap_LifeInsuranceInForcePercentageAssumedToNet
Gross Amount |  |  |  |  |  |  |  |  | 7,899.3 us-gaap_DirectPremiumsEarned | 7,777.3 us-gaap_DirectPremiumsEarned | 7,736.0 us-gaap_DirectPremiumsEarned
Reinsurance Ceded |  |  |  |  |  |  |  |  | 291.9 us-gaap_CededPremiumsEarned | 355.8 us-gaap_CededPremiumsEarned | 230.8 us-gaap_CededPremiumsEarned
Assumed Premiums Earned |  |  |  |  |  |  |  |  | 189.8 us-gaap_AssumedPremiumsEarned | 203.2 us-gaap_AssumedPremiumsEarned | 210.9 us-gaap_AssumedPremiumsEarned
Net Amount | 1,967.9 us-gaap_PremiumsEarnedNet | 1,947.2 us-gaap_PremiumsEarnedNet | 1,943.6 us-gaap_PremiumsEarnedNet | 1,938.5 us-gaap_PremiumsEarnedNet | 1,890.7 us-gaap_PremiumsEarnedNet | 1,897.3 us-gaap_PremiumsEarnedNet | 1,905.8 us-gaap_PremiumsEarnedNet | 1,930.9 us-gaap_PremiumsEarnedNet | 7,797.2 us-gaap_PremiumsEarnedNet | 7,624.7 us-gaap_PremiumsEarnedNet | 7,716.1 us-gaap_PremiumsEarnedNet
Percentage of Amount Assumed to Net |  |  |  |  |  |  |  |  | 2.40%us-gaap_PremiumsPercentageAssumedToNet | 2.70%us-gaap_PremiumsPercentageAssumedToNet | 2.70%us-gaap_PremiumsPercentageAssumedToNet
Life Insurance Product Line |  |  |  |  |  |  |  |  |  |  |
Reinsurance Premiums for Insurance Companies, by Product Segment |  |  |  |  |  |  |  |  |  |  |
Gross Amount |  |  |  |  |  |  |  |  | 2,056.4 us-gaap_DirectPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 2,018.7 us-gaap_DirectPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 1,979.1 us-gaap_DirectPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember
Reinsurance Ceded |  |  |  |  |  |  |  |  | 194.8 us-gaap_CededPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 253.6 us-gaap_CededPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 141.4 us-gaap_CededPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember
Assumed Premiums Earned |  |  |  |  |  |  |  |  | 9.6 us-gaap_AssumedPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 10.0 us-gaap_AssumedPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 10.3 us-gaap_AssumedPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember
Net Amount |  |  |  |  |  |  |  |  | 1,871.2 us-gaap_PremiumsEarnedNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 1,775.1 us-gaap_PremiumsEarnedNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 1,848.0 us-gaap_PremiumsEarnedNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember
Percentage of Amount Assumed to Net |  |  |  |  |  |  |  |  | 0.50%us-gaap_PremiumsPercentageAssumedToNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 0.60%us-gaap_PremiumsPercentageAssumedToNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember | 0.60%us-gaap_PremiumsPercentageAssumedToNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_LifeInsuranceSegmentMember
Accident, Sickness, and Disability Insurance |  |  |  |  |  |  |  |  |  |  |
Reinsurance Premiums for Insurance Companies, by Product Segment |  |  |  |  |  |  |  |  |  |  |
Gross Amount |  |  |  |  |  |  |  |  | 5,842.9 us-gaap_DirectPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 5,758.6 us-gaap_DirectPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 5,756.9 us-gaap_DirectPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember
Reinsurance Ceded |  |  |  |  |  |  |  |  | 97.1 us-gaap_CededPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 102.2 us-gaap_CededPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 89.4 us-gaap_CededPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember
Assumed Premiums Earned |  |  |  |  |  |  |  |  | 180.2 us-gaap_AssumedPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 193.2 us-gaap_AssumedPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 200.6 us-gaap_AssumedPremiumsEarned / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember
Net Amount |  |  |  |  |  |  |  |  | $ 5,926.0 us-gaap_PremiumsEarnedNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | $ 5,849.6 us-gaap_PremiumsEarnedNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | $ 5,868.1 us-gaap_PremiumsEarnedNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember
Percentage of Amount Assumed to Net |  |  |  |  |  |  |  |  | 3.00%us-gaap_PremiumsPercentageAssumedToNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 3.30%us-gaap_PremiumsPercentageAssumedToNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember | 3.40%us-gaap_PremiumsPercentageAssumedToNet / us-gaap_ReinsurancePremiumsForInsuranceCompaniesByProductSegmentAxis = us-gaap_AccidentAndHealthInsuranceSegmentMember

X
- Definition Amount of earned premiums assumed from other entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(2) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1 -Article 7 + Details
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- Definition Amount of earned premiums ceded to other entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(2) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1 -Article 7 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6486662&loc=d3e27175-158546 + Details
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 1 -Article 7 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(1) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 + Details
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- Definition Amount of life insurance issued and outstanding assumed from other entities. Includes, but not limited to, dividends and adjustments to face value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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- Definition Amount of life insurance issued and outstanding ceded to other entities. Includes, but not limited to, dividends and adjustments to face value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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- Definition Percentage of assumed life insurance issued and outstanding contracts to life insurance issued and outstanding after contracts ceded to other entities and contracts assumed by the entity. Includes, but not limited to, dividends and adjustments to face value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 17 -Article 12 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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