| Net Income | 3,305 | 2,702 | 1,202 | 1,347 | 1,808 | |
| Depreciation & Amortization | 1,241 | 1,293 | 1,430 | 1,335 | 1,259 | |
| Gain (Loss) on Sale of Assets | -120 | 280 | -93 | -76 | -99 | |
| Gain (Loss) on Sale of Investments | - | - | - | 229 | - | |
| Stock-Based Compensation | 212 | 216 | 234 | 203 | 281 | |
| Change in Accounts Receivable | -4,333 | -2,380 | -1,627 | -2,453 | -52 | |
| Change in Accounts Payable | -528 | 3,398 | 421 | 1,141 | 585 | |
| Change in Unearned Revenue | -54 | 238 | 31 | -109 | -528 | |
| Change in Insurance Reserves / Liabilities | 368 | 1,261 | 2,397 | 1,802 | 1,117 | |
| Change in Other Net Operating Assets | 32 | 857 | 1,095 | 1,136 | 1,073 | |
| Other Operating Activities | 18 | 91 | -689 | -350 | -13 | |
| Operating Cash Flow | 154 | 8,053 | 6,261 | 4,205 | 5,503 | |
| Operating Cash Flow Growth | -98.09% | 28.62% | 48.89% | -23.59% | 271.07% | |
| Capital Expenditures | -644 | -799 | -1,004 | -910 | -869 | |
| Cash Acquisitions | - | - | -1,460 | -534 | -4,049 | |
| Investment in Securities | -1,398 | -1,099 | -2,934 | -1,942 | -2,481 | |
| Other Investing Activities | - | - | - | 19 | -22 | |
| Investing Cash Flow | -1,052 | -1,191 | -2,921 | -3,299 | -6,955 | |
| Long-Term Debt Issued | 1,300 | 2,335 | 360 | 9,267 | 5,107 | |
| Total Debt Repaid | -622 | -2,316 | -1,490 | -7,434 | -4,067 | |
| Net Debt Issued (Repaid) | 678 | 19 | -1,130 | 1,833 | 1,040 | |
| Issuance of Common Stock | 46 | 44 | 70 | 35 | 28 | |
| Repurchases of Common Stock | -3,124 | -1,633 | -3,096 | -297 | -626 | |
| Other Financing Activities | -6 | -88 | -41 | -209 | -182 | |
| Financing Cash Flow | -2,406 | -1,658 | -4,197 | 1,362 | 260 | |
| Foreign Exchange Rate Adjustments | 8 | -32 | -11 | -11 | 18 | |
| Miscellaneous Cash Flow Adjustments | - | -50 | -16 | - | - | |
| Net Cash Flow | -3,296 | 5,122 | -884 | 2,257 | -1,174 | |
| Free Cash Flow | -490 | 7,254 | 5,257 | 3,295 | 4,634 | |
| Free Cash Flow Growth | - | 37.99% | 59.55% | -28.89% | 515.40% | |
| Free Cash Flow Margin | -0.33% | 5.13% | 3.86% | 2.78% | 4.44% | |
| Free Cash Flow Per Share | -0.94 | 13.29 | 9.03 | 5.58 | 8.00 | |
| Cash Interest Paid | 688 | 688 | 657 | 658 | 725 | |
| Cash Income Tax Paid | 1,002 | 887 | 1,198 | 678 | 1,191 | |
| Levered Free Cash Flow | 653.13 | 6,046 | 3,214 | 3,985 | 7,058 | |
| Unlevered Free Cash Flow | 1,092 | 6,499 | 3,630 | 4,401 | 7,513 | |
| Change in Net Working Capital | 2,809 | -2,718 | -233 | -1,224 | -4,208 | |