| Net Income | 790.9 | 785.7 | 817.6 | 673.8 | 784.8 | 814.9 | |
| Depreciation & Amortization | 36 | 36.9 | 44.1 | 46.9 | 47.9 | 46.4 | |
| Loss (Gain) From Sale of Investments | -17.7 | -21.1 | -27.8 | -7.7 | -0.4 | - | |
| Stock-Based Compensation | 63.5 | 61.1 | 59.7 | 58.6 | 53.4 | 48.2 | |
| Other Operating Activities | 3.7 | 3.6 | 3.3 | 3.8 | 6.4 | -9.1 | |
| Change in Accounts Payable | - | - | - | - | - | 2.2 | |
| Change in Unearned Revenue | 76.7 | 58.1 | 27 | 65.7 | 90.5 | 29 | |
| Change in Other Net Operating Assets | -22.4 | -41.3 | -3.7 | -3.8 | -12.6 | -9.2 | |
| Operating Cash Flow | 936.6 | 902.6 | 853.8 | 831.1 | 807.2 | 730.2 | |
| Operating Cash Flow Growth | 9.92% | 5.72% | 2.73% | 2.96% | 10.54% | -3.14% | |
| Capital Expenditures | -30.1 | -28.1 | -45.8 | -27.4 | -53 | -43.4 | |
| Divestitures | - | - | - | - | - | 20.8 | |
| Investment in Securities | 137.6 | 314.4 | -51.6 | 383.1 | -216.2 | -49.7 | |
| Investing Cash Flow | 107.5 | 286.3 | -97.4 | 355.7 | -269.2 | -72.3 | |
| Long-Term Debt Issued | - | - | - | - | 741.1 | - | |
| Long-Term Debt Repaid | - | - | - | - | -750 | - | |
| Net Debt Issued (Repaid) | -6.1 | - | - | - | -8.9 | - | |
| Issuance of Common Stock | 11.9 | 12.3 | 12.3 | 12.3 | 12.4 | 12.6 | |
| Repurchase of Common Stock | -1,206 | -1,234 | -901.4 | -1,048 | -722.6 | -777.5 | |
| Other Financing Activities | - | - | -0.7 | - | - | - | |
| Financing Cash Flow | -1,200 | -1,222 | -889.8 | -1,036 | -719.1 | -764.9 | |
| Foreign Exchange Rate Adjustments | -0.7 | -0.8 | -0.1 | -0.8 | -0.7 | - | |
| Net Cash Flow | -156.4 | -33.4 | -133.5 | 150.2 | -181.8 | -107 | |
| Free Cash Flow | 906.5 | 874.5 | 808 | 803.7 | 754.2 | 686.8 | |
| Free Cash Flow Growth | 12.16% | 8.23% | 0.53% | 6.56% | 9.81% | -3.75% | |
| Free Cash Flow Margin | 57.54% | 56.15% | 54.12% | 56.40% | 56.81% | 54.29% | |
| Free Cash Flow Per Share | 9.38 | 8.90 | 7.81 | 7.44 | 6.72 | 5.96 | |
| Cash Interest Paid | 85.9 | 72.8 | 72.8 | 72.8 | 85.6 | 87.4 | |
| Cash Income Tax Paid | 234.4 | 230.5 | 239.7 | 211.7 | 178.4 | 132.7 | |
| Levered Free Cash Flow | 760.76 | 724.91 | 704.71 | 662.48 | 611.43 | 542.97 | |
| Unlevered Free Cash Flow | 808.76 | 771.98 | 751.78 | 709.54 | 663.49 | 599.35 | |
| Change in Net Working Capital | -70.3 | -40.7 | -68.4 | -42 | -73.44 | -33.02 | |