| Revenues | | 2,960.00 | 4,397.00 | 3,272.00 | 2,966.00 |
| Costs And Expenses | | 2,299.00 | 2,866.00 | 2,527.00 | 2,241.00 |
| Operating Income/Loss | | 661.00 | 1,531.00 | 745.00 | 725.00 |
| Nonoperating Income/Loss | | 11.00 | -42.00 | -58.00 | -39.00 |
| Income/Loss From Continuing Operations Before Tax | | 672.00 | 1,489.00 | 687.00 | 686.00 |
| Income Tax Expense/Benefit, Current | 4.00 | 4.00 | 11.00 | 6.00 | -47.00 |
| Income Tax Expense/Benefit, Deferred | | 146.00 | 319.00 | 128.00 | 186.00 |
| Income Tax Expense/Benefit | | 150.00 | 330.00 | 134.00 | 139.00 |
| | 522.00 | 1,159.00 | 553.00 | 547.00 |
| Attributable To Parent | | 522.00 | 1,159.00 | 553.00 | 547.00 |
| Available To Common Stockholders, Basic | | 522.00 | 1,159.00 | 553.00 | 547.00 |
| Basic Average Shares | | 238.22 | 239.90 | 0.40 | 238.22 |
| Diluted Average Shares | | 238.36 | 240.76 | -0.00 | 239.89 |
| Basic Earnings Per Share | | 2.19 | 4.83 | 2.33 | 2.30 |
| Diluted Earnings Per Share | | 2.19 | 4.81 | 2.30 | 2.28 |