| Net Cash Provided by Operating Activities | 1.76B |
| Capital expenditures | -2.39B |
| Net (increase) decrease in short-term investments | -2.64B |
| Net (increase) decrease in restricted cash and short-term investments | -85M |
| Proceeds from sale of equipment and property | 22M |
| Cash collateral on spare parts financing | |
| Net cash provided by (used for) investing activities | -5.09B |
| Payments on long-term debt and capital lease obligations | -2.05B |
| Issuance of debt and sale leaseback transactions | |
| Reimbursement from construction reserve account | |
| Funds transferred to affiliates, net | 43M |
| Net cash provided by (used for) financing activities | 3.57B |
| Net increase (decrease) in cash | 238M |
| Cash at beginning of period | 474M |
| Cash at end of period | 712M |