| Net Income | 659 | 697 | 740 | 633 | -11 | -732 | |
| Depreciation & Amortization | 785 | 762 | 697 | 664 | 670 | 665 | |
| Other Amortization | 11 | 10 | 9 | 10 | 10 | 8 | |
| Gain (Loss) on Sale of Assets | -26 | - | -71 | -17 | -306 | -208 | |
| Asset Writedown | - | - | - | - | 92 | - | |
| Stock-Based Compensation | 24 | 24 | 30 | 26 | 18 | 17 | |
| Income (Loss) on Equity Investments | 6 | 11 | 25 | 27 | -10 | 40 | |
| Change in Other Net Operating Assets | 59 | 106 | -114 | 49 | -101 | 41 | |
| Other Operating Activities | -89 | -112 | 125 | 24 | -70 | -138 | |
| Operating Cash Flow | 1,429 | 1,498 | 1,441 | 1,416 | 292 | -307 | |
| Operating Cash Flow Growth | -0.69% | 3.96% | 1.77% | 384.93% | - | - | |
| Acquisition of Real Estate Assets | -622 | -548 | -646 | -504 | -427 | -499 | |
| Sale of Real Estate Assets | 63 | - | 34 | 236 | 729 | 281 | |
| Net Sale / Acq. of Real Estate Assets | -559 | -548 | -612 | -268 | 302 | -218 | |
| Cash Acquisition | -938 | -1,504 | - | -301 | -1,458 | - | |
| Investment in Marketable & Equity Securities | -75 | -55 | -20 | -60 | -11 | -5 | |
| Other Investing Activities | 37 | 74 | 36 | 11 | - | - | |
| Investing Cash Flow | -1,463 | -2,040 | -183 | -618 | -1,158 | -195 | |
| Long-Term Debt Issued | - | 2,169 | - | - | 443 | 2,985 | |
| Long-Term Debt Repaid | - | -1,292 | -7 | -685 | -1,200 | -1,212 | |
| Net Debt Issued (Repaid) | 681 | 877 | -7 | -685 | -757 | 1,773 | |
| Issuance of Common Stock | - | - | - | - | 138 | - | |
| Repurchase of Common Stock | -262 | -107 | -182 | -27 | - | -147 | |
| Common Dividends Paid | -628 | -737 | -547 | -150 | - | -320 | |
| Other Financing Activities | -34 | -46 | -35 | -12 | -38 | -75 | |
| Foreign Exchange Rate Adjustments | -1 | -10 | 2 | -3 | - | -3 | |
| Net Cash Flow | -278 | -565 | 489 | -79 | -1,523 | 726 | |
| Cash Interest Paid | 200 | 172 | 183 | 142 | 183 | 183 | |
| Cash Income Tax Paid | 13 | 11 | 12 | -19 | 34 | -24 | |
| Levered Free Cash Flow | 1,296 | 1,183 | 1,101 | 1,649 | 147.25 | -197.63 | |
| Unlevered Free Cash Flow | 1,430 | 1,307 | 1,212 | 1,737 | 256.63 | -84.38 | |
| Change in Working Capital | 59 | 106 | -114 | 49 | -101 | 41 | |