| Net Income | 762.99 | 712.95 | 865.35 | 634.98 | 446.09 | |
| Depreciation & Amortization | 18.44 | 35.23 | 54.25 | 66.01 | 57.81 | |
| Gain (Loss) on Sale of Investments | 9.85 | 14.14 | 7.46 | -5.86 | -12.58 | |
| Stock-Based Compensation | 31.32 | 31.61 | 24.77 | 17.11 | 13.8 | |
| Change in Accounts Receivable | 0.96 | -0.5 | -1.46 | -0.5 | -0.46 | |
| Reinsurance Recoverable | -8.28 | 3.12 | 56.86 | -7.47 | -72.55 | |
| Change in Unearned Revenue | -37.42 | -37.51 | -46.4 | -45.41 | -93.2 | |
| Change in Income Taxes | 16.27 | -4.14 | -8.55 | 5.43 | 6.27 | |
| Change in Insurance Reserves / Liabilities | -42.72 | -52.61 | -325.53 | 2.99 | 325.2 | |
| Change in Other Net Operating Assets | -31.72 | 5.14 | -15.18 | -12.96 | 10.73 | |
| Other Operating Activities | 2.43 | 1.07 | 35.83 | 42.1 | 54.21 | |
| Operating Cash Flow | 725.03 | 712.96 | 650.01 | 696.32 | 732.31 | |
| Operating Cash Flow Growth | 1.69% | 9.68% | -6.65% | -4.92% | 20.14% | |
| Capital Expenditures | -1.17 | -2 | -3.25 | -4.12 | -3.31 | |
| Sale of Property, Plant & Equipment | - | 2.34 | - | - | - | |
| Investment in Securities | -140.83 | -179.53 | 413.74 | -156.63 | -769.2 | |
| Investing Cash Flow | -142.01 | -179.19 | 410.49 | -160.75 | -772.51 | |
| Long-Term Debt Issued | - | - | - | - | 640.25 | |
| Total Debt Issued | - | - | - | - | 640.25 | |
| Total Debt Repaid | - | -28.64 | -486.41 | -98.61 | -216.13 | |
| Net Debt Issued (Repaid) | - | -28.64 | -486.41 | -98.61 | 424.12 | |
| Repurchases of Common Stock | -588.54 | -344.44 | -395.67 | -297.55 | -128.94 | |
| Common Dividends Paid | -130.5 | -122.97 | -110.95 | -94.22 | -82.06 | |
| Other Financing Activities | - | - | -39.51 | -36.91 | -45.3 | |
| Financing Cash Flow | -719.04 | -496.04 | -1,033 | -527.29 | 167.82 | |
| Net Cash Flow | -136.02 | 37.73 | 27.96 | 8.28 | 127.62 | |
| Free Cash Flow | 723.86 | 710.96 | 646.76 | 692.2 | 729 | |
| Free Cash Flow Growth | 1.81% | 9.93% | -6.57% | -5.05% | 20.72% | |
| Free Cash Flow Margin | 59.94% | 61.55% | 55.15% | 58.38% | 60.79% | |
| Free Cash Flow Per Share | 2.74 | 2.48 | 2.08 | 1.97 | 2.03 | |
| Cash Interest Paid | 34.1 | 35.1 | 53.7 | 71.7 | 54.3 | |
| Cash Income Tax Paid | 181.8 | 188.2 | 236.5 | 155.3 | 79.6 | |
| Levered Free Cash Flow | 610.84 | 586.4 | 802.63 | 536.37 | 266.53 | |
| Unlevered Free Cash Flow | 633.09 | 609.47 | 832.66 | 580.97 | 303.78 | |
| Change in Net Working Capital | 43.19 | 42.33 | -20.46 | 66.82 | 168.02 | |