v2.3.0.15

Investments - Schedule of Investments (Details) (USD $) In Millions, unless otherwise specified | 9 Months Ended | 12 Months Ended
--- | --- | ---
Sep. 30, 2011 | Dec. 31, 2010
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Securities | $ 4,782.4 | $ 4,475.3
Available-for-sale Securities, Equity Securities | 360.8 | 550.4
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |  |
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value | 466.7 |
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value | 90.3 |
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value | 942.2 |
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value | 2,978.3 |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 304.9 |
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 355.5 | 617.9
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (21.1) | (21.5)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 90.8 | 122.2
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (7.4) | (12.7)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 446.3 | 740.1
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (28.5) | (34.2)
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Related to Securities that have Previously Recognized Foregin Currency Impairment | 0.1 | (0.1)
Number of Issuers of Available for Sales Securities Continuous Unrealized Loss Possition Aggregate Losses Related to Securities that have Previously Recognized Foreign Currency impairment | 1 | 1
Percentage of Unrealized Loss Postion to Amortized Cost Basis of Available for Sale Security Average |  | 4.00%
Accrued Expenses and Other Liabilities | 390.7 | 437.8
External Credit Rating, Investment Grade [Member] | Debt Securities [Member] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 4.8 | (28.1)
External Credit Rating, Non Investment Grade [Member] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Related to Securities that have Previously Recognized Foregin Currency Impairment | 0.1 | (0.1)
Percentage of Unrealized Loss Postion to Amortized Cost Basis of Available for Sale Security Average | 5.00% |
External Credit Rating, Non Investment Grade [Member] | Debt Securities [Member] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 7.3 | (4.1)
Equity Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 22.2 | 103.2
Available-for-sale Securities, Gross Unrealized Losses | (16.4) | (2.0)
Available-for-sale Securities, Equity Securities | 360.8 | 550.4
Available-for-sale Equity Securities, Amortized Cost Basis | 355.0 | 449.2
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 176.3 | 20.1
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (15.3) | (0.8)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 6.5 | 13.2
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (1.1) | (1.2)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 182.8 | 33.3
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (16.4) | (2.0)
Preferred Stock Finance Insurance and Real Estate [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 0.8 | 3.5
Available-for-sale Securities, Gross Unrealized Losses | (6.3) | (0.2)
Available-for-sale Securities, Equity Securities | 88.9 | 97.7
Available-for-sale Equity Securities, Amortized Cost Basis | 94.4 | 94.4
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 52.4 | 3.0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (5.6) | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2.1 | 2.6
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (0.7) | (0.2)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 54.5 | 5.6
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (6.3) | (0.2)
Preferred Stocks Other Industries [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 2.6 | 7.6
Available-for-sale Securities, Gross Unrealized Losses | (0.7) | (0.2)
Available-for-sale Securities, Equity Securities | 20.2 | 27.4
Available-for-sale Equity Securities, Amortized Cost Basis | 18.3 | 20.0
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 3.2 | 0.7
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (0.6) | (0.1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2.8 | 2.8
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (0.1) | (0.1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 6.0 | 3.5
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (0.7) | (0.2)
Common Stock Intermec [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains |  | 50.6
Available-for-sale Securities, Gross Unrealized Losses |  | 0
Available-for-sale Securities, Equity Securities |  | 137.5
Available-for-sale Equity Securities, Amortized Cost Basis |  | 86.9
Common Stocks Manufacturing [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 9.6 | 14.6
Available-for-sale Securities, Gross Unrealized Losses | (0.9) | (0.3)
Available-for-sale Securities, Equity Securities | 72.3 | 89.6
Available-for-sale Equity Securities, Amortized Cost Basis | 63.6 | 75.3
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 11.2 | 7.9
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (0.9) | (0.3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 1.7
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 11.2 | 9.6
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (0.9) | (0.3)
Common Stocks Other Industries [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 4.0 | 6.6
Available-for-sale Securities, Gross Unrealized Losses | (2.8) | (0.1)
Available-for-sale Securities, Equity Securities | 41.5 | 43.8
Available-for-sale Equity Securities, Amortized Cost Basis | 40.3 | 37.3
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 15.7 | 6.3
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (2.8) | (0.1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 15.7 | 6.3
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (2.8) | (0.1)
Exchange Traded Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 0.1 | 2.7
Available-for-sale Securities, Gross Unrealized Losses | (0.4) | 0
Available-for-sale Securities, Equity Securities | 65.7 | 79.2
Available-for-sale Equity Securities, Amortized Cost Basis | 66.0 | 76.5
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 50.5 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (0.4) |
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 |
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 50.5 |
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (0.4) |
Partnership Interest [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 5.1 | 17.6
Available-for-sale Securities, Gross Unrealized Losses | (5.3) | (1.2)
Available-for-sale Securities, Equity Securities | 72.2 | 75.2
Available-for-sale Equity Securities, Amortized Cost Basis | 72.4 | 58.8
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 43.3 | 2.2
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (5.0) | (0.3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1.6 | 6.1
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (0.3) | (0.9)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 44.9 | 8.3
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (5.3) | (1.2)
Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 507.4 | 266.7
Available-for-sale Securities, Gross Unrealized Losses | (12.1) | (32.2)
Available-for-sale Securities, Debt Securities | 4,782.4 | 4,475.3
Available-for-sale Debt Securities, Amortized Cost Basis | 4,287.1 | 4,240.8
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 179.2 | 597.8
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (5.8) | (20.7)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 84.3 | 109.0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (6.3) | (11.5)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 263.5 | 706.8
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (12.1) | (32.2)
Accrued Expenses and Other Liabilities | 4.9 | 0
US Government and Government Agencies and Authorities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 52.0 | 28.4
Available-for-sale Securities, Gross Unrealized Losses | 0 | (0.1)
Available-for-sale Securities, Debt Securities | 516.7 | 536.9
Available-for-sale Debt Securities, Amortized Cost Basis | 464.7 | 508.6
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 1.3 | 18.5
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | (0.1)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 0 | 0.1
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 1.3 | 18.6
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | 0 | (0.1)
Government National Mortgage Association Certificates and Obligations (GNMA) [Member] |  |
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |  |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 268.2 |
Federal National Mortgage Association Certificates and Obligations (FNMA) [Member] |  |
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |  |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 30.1 |
Federal Home Loan Mortgage Corporation Certificates and Obligations (FHLMC) [Member] |  |
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |  |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 0.9 |
Other Issuers [Member] |  |
Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |  |
Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value | 5.7 |
US States and Political Subdivisions Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 143.1 | 53.5
Available-for-sale Securities, Gross Unrealized Losses | (0.8) | (20.7)
Available-for-sale Securities, Debt Securities | 1,903.3 | 1,792.8
Available-for-sale Debt Securities, Amortized Cost Basis | 1,761.0 | 1,760.0
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 0 | 455.6
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | (16.9)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 12.3 | 16.5
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (0.8) | (3.8)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 12.3 | 472.1
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (0.8) | (20.7)
Corporate Debt Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 307.8 | 178.8
Available-for-sale Securities, Gross Unrealized Losses | (10.3) | (10.1)
Available-for-sale Securities, Debt Securities | 2,275.2 | 2,049.0
Available-for-sale Debt Securities, Amortized Cost Basis | 1,977.7 | 1,880.3
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 176.9 | 123.0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (5.5) | (3.7)
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 67.4 | 87.8
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (4.8) | (6.4)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 244.3 | 210.8
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (10.3) | (10.1)
Redeemable Preferred Stock [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 3.4 | 4.9
Available-for-sale Securities, Gross Unrealized Losses | (0.3) | 0
Available-for-sale Securities, Debt Securities | 81.5 | 88.3
Available-for-sale Debt Securities, Amortized Cost Basis | 78.4 | 83.4
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 1.0 | 0.7
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | (0.3) | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 1.7 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2.7 | 0.7
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (0.3) | 0
Asset-backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Gross Unrealized Gains | 1.1 | 1.1
Available-for-sale Securities, Gross Unrealized Losses | (0.7) | (1.3)
Available-for-sale Securities, Debt Securities | 5.7 | 8.3
Available-for-sale Debt Securities, Amortized Cost Basis | 5.3 | 8.5
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |  |
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses | 0 | 0
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value | 2.9 | 4.6
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses | (0.7) | (1.3)
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value | 2.9 | 4.6
Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses | (0.7) | (1.3)
Mortgage-backed Securities, Issued by Private Enterprises [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Securities | 1.8 | 1.9
Other Asset Backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Securities | 0.6 | 1.2
Collateralized Debt Obligations [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Securities | 3.2 | 5.0
Commercial Mortgage Backed Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Available-for-sale Securities, Debt Securities | $ 0.1 | $ 0.2

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- Definition This item represents the aggregate fair value of investments in debt and equity securities in an unrealized loss position which are categorized neither as held-to-maturity nor trading securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Emerging Issues Task Force (EITF) -Number 03-1 -Paragraph 21 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 17 -Subparagraph a(1) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6872113&loc=d3e27290-111563 + Details
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