Selected Quarterly Financial Data
| 2007 | Quarter 1 | Quarter 2 | Quarter 3 | Quarter 4 |
| (Dollars in millions, unaudited) | ||||
| Operating revenue | $ 19,663 | $ 18,615 | $ 17,835 | $ 17,702 |
| Total operating expense | 22,443 | 17,741 | 17,778 | 18,432 |
| Income (loss) from operations | (2,780) | 874 | 57 | (730) |
| Other revenue (expense) | 48 | (28) | 24 | (25) |
| Net (Loss) Income | $ (2,732) | $ (1,078) | $ (659) | $ (673) |
| 2006 | Quarter 1 | Quarter 2 | Quarter 3 | Quarter 4 |
| (Dollars in millions, unaudited) | ||||
| Operating revenue | $ 18,498 | $ 18,615 | $ 17,835 | $ 17,702 |
| Total operating expense | 17,730 | 17,741 | 17,778 | 18,432 |
| Income (loss) from operations | 768 | 874 | 57 | (730) |
| Other revenue (expense) | (40) | (28) | 24 | (25) |
| Net (Loss) Income | $ 728 | $ 846 | $ 81 | $ (755) |
| 2005 | Quarter 1 | Quarter 2 | Quarter 3 | Quarter 4 |
| (Dollars in millions, unaudited) | ||||
| Operating revenue | $ 18,786 | $ 17,296 | $ 16,847 | $ 16,978 |
| Total operating expense | 17,059 | 16,986 | 17,022 | 17,214 |
| Income (loss) from operations | 1,727 | 310 | (175) | (236) |
| Other revenue (expense) | (45) | (35) | (65) | (36) |
| Net (Loss) Income | $ 1,682 | $ 275 | $ (240) | $ (272) |