| Net Income | 624.96 | 600.31 | 446.06 | 298.57 | 297.86 | 293.3 | |
| Depreciation & Amortization | 63.91 | 63.91 | 53.59 | 51.72 | 49.1 | 34.3 | |
| Loss (Gain) From Sale of Assets | 3.87 | 3.87 | 1.61 | 0.17 | -0.01 | -0.02 | |
| Loss (Gain) From Sale of Investments | 0.9 | 0.9 | 15.6 | 27.95 | -28.25 | 2.76 | |
| Other Operating Activities | 55.58 | 3.15 | 12.77 | 22.38 | -1.85 | -5.16 | |
| Change in Accounts Receivable | -81.72 | -81.72 | -100.4 | -45.81 | 15.51 | -26.55 | |
| Change in Accounts Payable | -7.52 | -7.52 | 7.24 | 18.99 | -4.82 | -14.31 | |
| Change in Unearned Revenue | 2.81 | 2.81 | 6.68 | 1.82 | -3.18 | 1.42 | |
| Change in Other Net Operating Assets | 25.54 | 25.54 | -61.94 | -9.65 | 78.44 | 56.83 | |
| Operating Cash Flow | 688.32 | 611.25 | 381.21 | 366.15 | 402.79 | 342.6 | |
| Operating Cash Flow Growth | 63.96% | 60.35% | 4.11% | -9.10% | 17.57% | -6.02% | |
| Capital Expenditures | -124.29 | -124.85 | -92.65 | -67.2 | -148.8 | -55.53 | |
| Sale of Property, Plant & Equipment | - | - | - | 0.27 | - | 0.02 | |
| Investment in Securities | -120.7 | -75.77 | -53.01 | -36.88 | -39.69 | -185.09 | |
| Investing Cash Flow | -283.85 | -226.91 | -157.57 | -106.92 | -185.49 | -243.23 | |
| Short-Term Debt Issued | - | - | - | 55 | - | - | |
| Total Debt Issued | - | - | - | 55 | - | - | |
| Short-Term Debt Repaid | - | - | - | -55 | - | - | |
| Long-Term Debt Repaid | - | - | - | -94.07 | -2.04 | -1.97 | |
| Total Debt Repaid | - | - | - | -149.07 | -2.04 | -1.97 | |
| Net Debt Issued (Repaid) | - | - | - | -94.07 | -2.04 | -1.97 | |
| Common Dividends Paid | -245.89 | -237.51 | -221.68 | -206.77 | -192.8 | -179.8 | |
| Other Financing Activities | 28.81 | 7.51 | - | - | - | - | |
| Financing Cash Flow | -217.08 | -230 | -221.68 | -300.84 | -194.84 | -274.87 | |
| Net Cash Flow | 187.39 | 154.34 | 1.97 | -41.61 | 22.46 | -175.5 | |
| Free Cash Flow | 564.04 | 486.4 | 288.56 | 298.95 | 253.99 | 287.07 | |
| Free Cash Flow Growth | 75.34% | 68.56% | -3.48% | 17.70% | -11.52% | 9.36% | |
| Free Cash Flow Margin | 14.19% | 12.82% | 8.83% | 10.53% | 9.64% | 11.32% | |
| Free Cash Flow Per Share | 10.78 | 9.30 | 5.52 | 5.72 | 4.86 | 5.49 | |
| Cash Interest Paid | - | - | - | 2.13 | 4.14 | 0.69 | |
| Cash Income Tax Paid | 153.42 | 159.87 | 104.37 | 80.62 | 84.49 | 82.58 | |
| Levered Free Cash Flow | 400.57 | 369.28 | 258.3 | 192.7 | 112.81 | 219.57 | |
| Unlevered Free Cash Flow | 400.57 | 369.28 | 258.3 | 193.96 | 115.39 | 220.03 | |
| Change in Working Capital | -60.89 | -60.89 | -148.43 | -34.65 | 85.96 | 17.4 | |