|  | 885 | 1,121 | 1,273 | 802 | 789 | 837 |  | 
| Depreciation & Amortization | 313 | 354 | 332 | 427 | 438 | 179 |  | 
|  | 2 | 2 | 2 | 3 | 3 | 2 |  | 
| Asset Writedown & Restructuring Costs | - | - | 70 | 106 | 45 | - |  | 
|  | 651 | 642 | 584 | 548 | 528 | 435 |  | 
| Change in Accounts Receivable | -66 | -115 | 119 | -34 | -77 | -41 |  | 
| Change in Accounts Payable | 269 | 190 | -208 | 144 | -7 | 18 |  | 
| Change in Unearned Revenue | -150 | -114 | -87 | -122 | 497 | 581 |  | 
| Change in Other Net Operating Assets | -8 | 40 | 148 | -103 | 12 | 66 |  | 
|  | 1,872 | 2,079 | 2,315 | 1,550 | 1,899 | 1,934 |  | 
| Operating Cash Flow Growth | -14.83% | -10.19% | 49.35% | -18.38% | -1.81% | 7.62% |  | 
|  | -219 | -221 | -199 | -207 | -188 | -124 |  | 
|  | -17 | - | - | - | -3,391 | -1,239 |  | 
|  | 231 | 258 | -8 | -10 | 775 | 858 |  | 
|  | -5 | 37 | -207 | -217 | -2,804 | -505 |  | 
|  | - | - | - | - | - | 1,478 |  | 
|  | - | - | - | - | - | -600 |  | 
|  | - | - | - | - | - | 878 |  | 
|  | 81 | 78 | 77 | 80 | 77 | 86 |  | 
| Repurchase of Common Stock | -2,799 | -2,742 | -1,496 | -1,470 | -1,504 | -881 |  | 
|  | -194 | -199 | -205 | -210 | -193 | -98 |  | 
|  | -2,912 | -2,863 | -1,624 | -1,600 | -1,620 | -15 |  | 
| Foreign Exchange Rate Adjustments | -4 | -17 | -8 | -41 | -3 | 78 |  | 
|  | -1,049 | -764 | 476 | -308 | -2,528 | 1,492 |  | 
|  | 1,653 | 1,858 | 2,116 | 1,343 | 1,711 | 1,810 |  | 
|  | -16.43% | -12.19% | 57.56% | -21.51% | -5.47% | 9.23% |  | 
|  | 22.68% | 24.90% | 27.98% | 18.09% | 24.47% | 32.16% |  | 
|  | 6.43 | 7.04 | 7.78 | 4.83 | 5.98 | 6.20 |  | 
|  | 56 | 56 | 56 | 56 | 56 | 40 |  | 
|  | 404 | 404 | 300 | 583 | 629 | 340 |  | 
|  | 1,581 | 1,656 | 1,736 | 1,336 | 1,781 | 1,945 |  | 
|  | 1,616 | 1,690 | 1,770 | 1,369 | 1,814 | 1,971 |  | 
| Change in Working Capital | 21 | -40 | 54 | -336 | 96 | 481 |  |