| Revenues | | 3,420.10 | 3,350.40 | 3,231.50 | 3,158.40 |
| Benefits Costs and Expenses | | 3,084.50 | 3,066.90 | 2,900.30 | 2,869.40 |
| Costs And Expenses | | 3,084.50 | 3,066.90 | 2,900.30 | 2,869.40 |
| Income/Loss From Continuing Operations Before Tax | | 335.60 | 283.50 | 331.20 | 289.00 |
| Income Tax Expense/Benefit | | 61.50 | 58.30 | 65.60 | 53.70 |
| | 274.10 | 225.20 | 265.60 | 235.30 |
| Attributable To Parent | | 274.10 | 225.20 | 265.60 | 235.30 |
| Available To Common Stockholders, Basic | | 271.80 | 217.50 | 265.60 | 235.30 |
| Basic Average Shares | | 49.70 | -0.61 | 50.83 | 51.14 |
| Diluted Average Shares | | 50.20 | -0.52 | 51.32 | 51.57 |
| Basic Earnings Per Share | | 5.47 | 4.47 | 5.22 | 4.60 |
| Diluted Earnings Per Share | | 5.41 | 4.38 | 5.17 | 4.56 |
| Common Stock Dividends | 0.88 | 0.88 | 0.88 | 0.80 | 0.80 |
| Undistributed Earnings/Loss Allocated To Participating Securities, Basic | 2.30 | 2.30 | - | - | - |