| 465 | 578 | 534 | 523 | 383 | 491 | | | | | | | | |
| | | | | | | | | | | | | | |
Depreciation & Amortization | 314 | 221 | 171 | 150 | 129 | 212 | | | | | | | | |
Depreciation, Amortization and Accretion | | | | | | | | | | | | | | |
Amortization of Costs to Obtain a Contract with a Customer | | | | | | | | | | | | | | |
| 421 | 367 | 316 | 341 | 362 | 335 | | | | | | | | |
Stock-Based Compensation Expense | | | | | | | | | | | | | | |
| 150 | -77 | -45 | -33 | -91 | -206 | | | | | | | | |
| | | | | | | | | | | | | | |
Lease-Related Asset Impairments | | | | | | | | | | | | | | |
Restructuring, Other Exit Costs, and Facility Reductions | | | | | | | | | | | | | | |
| | | | | | | | | | | | | | |
Changes in Trade Receivables | 476 | -609 | 477 | -473 | 559 | -528 | | | | | | | | |
| | | | | | | | | | | | | | |
Changes in Accounts Payable | 17 | 268 | -30 | 133 | -106 | 235 | | | | | | | | |
Accounts Payable and Other Liabilities | | | | | | | | | | | | | | |
Changes in Income Taxes Payable | 7 | 31 | 27 | -59 | 67 | 123 | | | | | | | | |
| | | | | | | | | | | | | | |
Changes in Unearned Revenue | -287 | 443 | -577 | 34 | -350 | 875 | | | | | | | | |
| | | | | | | | | | | | | | |
Changes in Other Operating Activities | -539 | -321 | -167 | -161 | -95 | -157 | | | | | | | | |
Prepaid Expenses and Other Assets | | | | | | | | | | | | | | |
Cash from Operating Activities | 1,024 | 901 | 706 | 455 | 858 | 1,380 | | | | | | | | |
Net Cash Provided by Operating Activities | | | | | | | | | | | | | | |