| Net Income | 391.18 | 410.76 | 291.26 | 223.48 | 165.62 | |
| Depreciation & Amortization | 205.7 | 201.24 | 310.61 | 232.05 | 156.57 | |
| Other Amortization | 4.07 | 4.14 | 3.9 | 8.17 | 2.67 | |
| Gain (Loss) on Sale of Assets | 4.66 | 5.47 | - | -32.7 | -6.71 | |
| Stock-Based Compensation | 11.49 | 10.09 | 9.08 | 8.09 | 7.14 | |
| Income (Loss) on Equity Investments | -2.5 | -6.09 | -48.88 | -25.28 | -0.18 | |
| Change in Accounts Payable | 24.03 | 0.1 | 20.4 | 14.87 | 13.92 | |
| Change in Other Net Operating Assets | -7.91 | -10.49 | 5.03 | -5.32 | -7.76 | |
| Other Operating Activities | 0.36 | -4.08 | 0.07 | 25.82 | 19.75 | |
| Operating Cash Flow | 631.07 | 611.14 | 591.47 | 449.19 | 351.03 | |
| Operating Cash Flow Growth | 3.26% | 3.33% | 31.67% | 27.96% | 5.81% | |
| Acquisition of Real Estate Assets | -115.94 | -109.8 | -154.6 | -256.04 | -523.13 | |
| Sale of Real Estate Assets | - | 0.24 | 43.19 | 44.03 | 12.47 | |
| Net Sale / Acq. of Real Estate Assets | -115.94 | -109.57 | -111.4 | -212.02 | -510.67 | |
| Cash Acquisition | -57.18 | - | - | -1,679 | - | |
| Investment in Marketable & Equity Securities | 4.15 | 8.32 | 62.64 | 38.33 | -0.78 | |
| Other Investing Activities | -5 | 7.42 | - | - | - | |
| Investing Cash Flow | -173.96 | -93.82 | -48.77 | -1,853 | -511.44 | |
| Long-Term Debt Issued | 697.04 | 794.45 | 633.95 | 1,950 | 874.92 | |
| Long-Term Debt Repaid | -747.48 | -869.84 | -785.38 | -1,202 | -607.38 | |
| Net Debt Issued (Repaid) | -50.44 | -75.39 | -151.43 | 748.26 | 267.54 | |
| Issuance of Common Stock | 128.21 | 2.72 | 6.47 | 973.5 | 121.69 | |
| Repurchase of Common Stock | -1.04 | -0.82 | -1.4 | -0.88 | -0.69 | |
| Common Dividends Paid | -461.77 | -442.22 | -387.11 | -273.84 | -256.25 | |
| Total Dividends Paid | -461.77 | -442.22 | -387.11 | -273.84 | -256.25 | |
| Other Financing Activities | -2.63 | -2.32 | -13.62 | -36.48 | -24.09 | |
| Net Cash Flow | 69.45 | -0.71 | -4.39 | 7.09 | -52.21 | |
| Cash Interest Paid | 92.61 | 95.5 | 92.29 | 79.15 | 80.79 | |
| Levered Free Cash Flow | 484.05 | 455.49 | 584.21 | 408.85 | 292.85 | |
| Unlevered Free Cash Flow | 539.29 | 512.1 | 641.05 | 454.81 | 339.28 | |
| Change in Net Working Capital | -18.59 | 12.91 | -71.36 | -17.25 | -14.43 | |