|                                                                                                                                         |   |  Three Months EndedJune 30, |   |   |  Six Months EndedJune 30, |   |   | Year Ended December 31, |   |
|----------------------------------------------------------------------------------------------------------------------------------------------|--------|----------------------------------|--------|--------|--------------------------------|--------|--------|-------------------------|--------|
|                                                                                                                                         |   | 2009                             |   |   | 2009                           |   |   | 2008                    |   |   | 2007 |   |   | 2006 |   |   | 2005 |   |   | 2004 |   |
| Earnings:                                                                                                                                    |   |                             |   |   |                           |   |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Income from continuing    operations                                                                                               |   | $                                | 391    |   |                           | $      | 630    |                    |   | $ | 1,199 |   |   | $ | 1,024 |   |   | $ | 985 |   |   | $ | 934 |   |   | $ | 3,982 |   |
| Income taxes provision                                                                                                                       |   |                             | 132    |   |                           |   | 263    |                    |   |   | 488 |   |   |   | 571 |   |   |   | 602 |   |   |   | 574 |   |   |   | 2,561 |   |
| Net fixed charges                                                                                                                            |   |                             | 203    |   |                           |   | 415    |                    |   |   | 860 |   |   |   | 889 |   |   |   | 801 |   |   |   | 589 |   |   |   | 695 |   |
| Total Earnings                                                                                                                               |   | $                                | 726    |   |                           | $      | 1,308  |                    |   | $ | 2,547 |   |   | $ | 2,484 |   |   | $ | 2,388 |   |   | $ | 2,097 |   |   | $ | 7,238 |   |
|                                                                                                                                         |   |                             |   |   |                           |   |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Fixed Charges:                                                                                                                               |   |                             |   |   |                           |   |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Interest and amortizationof premiums, discounts and capitalized expenses related to  short-term borrowings and long-term debt, net |   | $                                | 188    |   |                           | $      | 383    |                    |   | $ | 794 |   |   | $ | 834 |   |   | $ | 770 |   |   | $ | 573 |   |   | $ | 682 |   |
| Interest on capital leases                                                                                                                   |   |                             | 5      |   |                           |   | 10     |                    |   |   | 22 |   |   |   | 23 |   |   |   | 11 |   |   |   | 1 |   |   |   | 1 |   |
| AFUDC debt                                                                                                                                   |   |                             | 10     |   |                           |   | 22     |                    |   |   | 44 |   |   |   | 32 |   |   |   | 20 |   |   |   | 15 |   |   |   | 12 |   |
| Total Fixed Charges                                                                                                                          |   | $                                | 203    |   |                           | $      | 415    |                    |   | $ | 860 |   |   | $ | 889 |   |   | $ | 801 |   |   | $ | 589 |   |   | $ | 695 |   |
| Preferred Stock Dividends:                                                                                                                   |   |                             |   |   |                           |   |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Tax deductible dividends                                                                                                                     |   |                             | 2      |   |                           |   | 4      |                    |   |   | 9 |   |   |   | 9 |   |   |   | 12 |   |   |   | 9 |   |   |   | 9 |   |
| Pre-tax earnings required to cover non-tax deductible preferred stock dividend requirements                                                  |   |                             | 3      |   |                           |   | 4      |                    |   |   | 7 |   |   |   | 8 |   |   |   | 3 |   |   |   | 12 |   |   |   | 20 |   |
| Total Preferred Stock    Dividends                                                                                       |   |                             | 5      |   |                           |   | 8      |                    |   |   | 16 |   |   |   | 17 |   |   |   | 15 |   |   |   | 21 |   |   |   | 29 |   |
|                                                                                                                                         |   |                             |   |   |                           |   |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Total Combined Fixed Charges and Preferred Stock Dividends                                                                                   |   | $                                | 208    |   |                           | $      | 423    |                    |   | $ | 876 |   |   | $ | 906 |   |   | $ | 816 |   |   | $ | 610 |   |   | $ | 724 |   |
|                                                                                                                                         |   |                             |   |   |                           |   |   |                    |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |   |
| Ratios of Earnings to Combined Fixed Charges and Preferred Stock Dividends                                                              |   |                             | 3.49   |   |                           |   | 3.09   |                    |   |   | 2.91 |   |   |   | 2.74 |   |   |   | 2.93 |   |   |   | 3.44 |   |   |   | 10.00 |   |