|
Investments - Schedule of Investments (Details) (USD $) In Millions, unless otherwise specified
|
6 Months Ended |
12 Months Ended |
|
Jun. 30, 2011
|
Dec. 31, 2010
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Debt Securities |
$ 4,573.2 |
$ 4,475.3 |
| Available-for-sale Securities, Equity Securities |
503.0 |
550.4 |
| Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value |
466.6 |
|
| Available-for-sale Securities, Debt Maturities, within One Year, Fair Value |
93.9 |
|
| Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value |
957.5 |
|
| Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value |
2,742.2 |
|
| Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value |
313.0 |
|
| Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract] |
|
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value |
460.5 |
617.9 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(8.2) |
(21.5) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |
97.9 |
122.2 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |
(7.5) |
(12.7) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |
558.4 |
740.1 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(15.7) |
(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 |
548.0 |
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 |
10.2 |
(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 |
3.00% |
|
|
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 |
3.5 |
(4.1) |
|
Equity Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
70.2 |
103.2 |
| Available-for-sale Securities, Gross Unrealized Losses |
(2.0) |
(2.0) |
| Available-for-sale Securities, Equity Securities |
503.0 |
550.4 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
434.8 |
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 |
75.2 |
20.1 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(1.5) |
(0.8) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |
6.9 |
13.2 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |
(0.5) |
(1.2) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |
82.1 |
33.3 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(2.0) |
(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 |
4.4 |
3.5 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.1) |
(0.2) |
| Available-for-sale Securities, Equity Securities |
98.6 |
97.7 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
94.3 |
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 |
0 |
3.0 |
| 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 |
2.3 |
2.6 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |
(0.1) |
(0.2) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |
2.3 |
5.6 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(0.1) |
(0.2) |
|
Preferred Stocks Other Industries [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
2.4 |
7.6 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.1) |
(0.2) |
| Available-for-sale Securities, Equity Securities |
20.5 |
27.4 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
18.2 |
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 |
1.7 |
0.7 |
| 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 |
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 |
4.5 |
3.5 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(0.1) |
(0.2) |
|
Common Stock Intermec [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
26.8 |
50.6 |
| Available-for-sale Securities, Gross Unrealized Losses |
0 |
0 |
| Available-for-sale Securities, Equity Securities |
97.1 |
137.5 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
70.3 |
86.9 |
|
Common Stocks Manufacturing [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
15.0 |
14.6 |
| Available-for-sale Securities, Gross Unrealized Losses |
0 |
(0.3) |
| Available-for-sale Securities, Equity Securities |
78.6 |
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 |
1.3 |
7.9 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
0 |
(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 |
1.3 |
9.6 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
0 |
(0.3) |
|
Common Stocks Other Industries [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
7.1 |
6.6 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.7) |
(0.1) |
| Available-for-sale Securities, Equity Securities |
45.2 |
43.8 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
38.8 |
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 |
8.2 |
6.3 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(0.7) |
(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 |
8.2 |
6.3 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(0.7) |
(0.1) |
|
Exchange Traded Funds [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
0 |
2.7 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.2) |
0 |
| Available-for-sale Securities, Equity Securities |
82.9 |
79.2 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
83.1 |
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 |
44.2 |
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(0.2) |
|
| 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 |
44.2 |
|
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(0.2) |
|
|
Partnership Interest [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
14.5 |
17.6 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.9) |
(1.2) |
| Available-for-sale Securities, Equity Securities |
80.1 |
75.2 |
| Available-for-sale Equity Securities, Amortized Cost Basis |
66.5 |
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 |
19.8 |
2.2 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(0.6) |
(0.3) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |
1.8 |
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 |
21.6 |
8.3 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(0.9) |
(1.2) |
|
Debt Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
305.1 |
266.7 |
| Available-for-sale Securities, Gross Unrealized Losses |
(13.7) |
(32.2) |
| Available-for-sale Securities, Debt Securities |
4,573.2 |
4,475.3 |
| Available-for-sale Debt Securities, Amortized Cost Basis |
4,281.8 |
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 |
385.3 |
597.8 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(6.7) |
(20.7) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |
91.0 |
109.0 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |
(7.0) |
(11.5) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |
476.3 |
706.8 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(13.7) |
(32.2) |
| Accrued Expenses and Other Liabilities |
90.2 |
0 |
|
US Government and Government Agencies and Authorities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
32.5 |
28.4 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.2) |
(0.1) |
| Available-for-sale Securities, Debt Securities |
493.6 |
536.9 |
| Available-for-sale Debt Securities, Amortized Cost Basis |
461.3 |
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 |
11.0 |
18.5 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(0.2) |
(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 |
11.0 |
18.6 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(0.2) |
(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 |
273.4 |
|
|
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 |
31.5 |
|
|
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 |
1.1 |
|
|
Other Issuers [Member]
|
|
|
| Available-for-sale Securities, Debt Maturities, Fair Value [Abstract] |
|
|
| Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value |
7.0 |
|
|
US States and Political Subdivisions Debt Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
69.5 |
53.5 |
| Available-for-sale Securities, Gross Unrealized Losses |
(5.8) |
(20.7) |
| Available-for-sale Securities, Debt Securities |
1,843.3 |
1,792.8 |
| Available-for-sale Debt Securities, Amortized Cost Basis |
1,779.6 |
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 |
245.3 |
455.6 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(3.9) |
(16.9) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |
18.4 |
16.5 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |
(1.9) |
(3.8) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |
263.7 |
472.1 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(5.8) |
(20.7) |
|
Corporate Debt Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
196.0 |
178.8 |
| Available-for-sale Securities, Gross Unrealized Losses |
(7.0) |
(10.1) |
| Available-for-sale Securities, Debt Securities |
2,145.3 |
2,049.0 |
| Available-for-sale Debt Securities, Amortized Cost Basis |
1,956.3 |
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 |
128.1 |
123.0 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses |
(2.6) |
(3.7) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value |
69.0 |
87.8 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses |
(4.4) |
(6.4) |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value |
197.1 |
210.8 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
(7.0) |
(10.1) |
|
Redeemable Preferred Stock [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
5.6 |
4.9 |
| Available-for-sale Securities, Gross Unrealized Losses |
0 |
0 |
| Available-for-sale Securities, Debt Securities |
84.0 |
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 |
0.8 |
0.7 |
| 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 |
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 |
0.8 |
0.7 |
| Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses |
0 |
0 |
|
Asset-backed Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Gross Unrealized Gains |
1.5 |
1.1 |
| Available-for-sale Securities, Gross Unrealized Losses |
(0.7) |
(1.3) |
| Available-for-sale Securities, Debt Securities |
7.0 |
8.3 |
| Available-for-sale Debt Securities, Amortized Cost Basis |
6.2 |
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 |
0.1 |
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 |
3.6 |
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 |
3.7 |
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 |
2.1 |
1.9 |
|
Other Asset Backed Securities [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Debt Securities |
0.7 |
1.2 |
|
Collateralized Debt Obligations [Member]
|
|
|
| Schedule of Available-for-sale Securities [Line Items] |
|
|
| Available-for-sale Securities, Debt Securities |
4.1 |
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 |