| Revenues | | 833.57 | 1,034.17 | 820.16 | 748.53 |
| Cost Of Revenue | | 59.34 | 58.12 | 43.49 | 48.88 |
| Interest Income/Expense | | 14.42 | 19.42 | 24.67 | 24.27 |
| Costs And Expenses | | 584.94 | 601.01 | 583.59 | 565.18 |
| Income Tax Expense/Benefit, Current | | 2.63 | 5.80 | 3.77 | -1.02 |
| Income Tax Expense/Benefit, Deferred | | 50.68 | 85.73 | 53.71 | 40.06 |
| Income Tax Expense/Benefit | | 53.30 | 91.53 | 57.48 | 39.04 |
| | 195.32 | 341.63 | 179.09 | 144.31 |
| Attributable To Parent | | 195.32 | 341.63 | 179.09 | 144.31 |
| Available To Common Stockholders, Basic | | 195.12 | 341.24 | 178.87 | 144.15 |
| Basic Average Shares | | 234.74 | 235.05 | -0.58 | 237.38 |
| Diluted Average Shares | | 236.21 | 236.40 | -0.47 | 239.03 |
| Basic Earnings Per Share | | 0.83 | 1.45 | 0.76 | 0.61 |
| Diluted Earnings Per Share | | 0.83 | 1.44 | 0.75 | 0.60 |
| Common Stock Dividends | 0.10 | 0.10 | 0.10 | 0.09 | 0.09 |
| Participating Securities, Distributed And Undistributed Earnings/Loss, Basic | | 0.21 | 0.39 | 0.22 | 0.16 |