| Net Income | 313 | 228 | 233 | 244 | 155 | |
| Depreciation & Amortization | 496 | 458 | 417 | 404 | 454 | |
| Stock-Based Compensation | 24 | 17 | 15 | 14 | 11 | |
| Change in Accounts Receivable | -66 | -29 | -66 | -64 | -24 | |
| Change in Accounts Payable | 47 | -166 | 157 | 61 | 26 | |
| Change in Other Net Operating Assets | -45 | -131 | -20 | 8 | 25 | |
| Other Operating Activities | 9 | 43 | -62 | -135 | -80 | |
| Operating Cash Flow | 778 | 420 | 674 | 532 | 567 | |
| Operating Cash Flow Growth | 85.24% | -37.69% | 26.69% | -6.17% | 3.85% | |
| Capital Expenditures | -1,268 | -1,358 | -766 | -636 | -784 | |
| Contributions to Nuclear Demissioning Trust | -8 | -1 | -3 | -10 | -6 | |
| Other Investing Activities | -21 | 1 | 11 | -10 | 3 | |
| Investing Cash Flow | -1,297 | -1,358 | -758 | -656 | -787 | |
| Short-Term Debt Issued | - | 146 | - | 200 | 275 | |
| Long-Term Debt Issued | 670 | 600 | 385 | 400 | 549 | |
| Total Debt Issued | 670 | 746 | 385 | 600 | 824 | |
| Short-Term Debt Repaid | -146 | - | - | -350 | -125 | |
| Long-Term Debt Repaid | -130 | -260 | - | -160 | -98 | |
| Total Debt Repaid | -276 | -260 | - | -510 | -223 | |
| Net Debt Issued (Repaid) | 394 | 486 | 385 | 90 | 601 | |
| Issuance of Common Stock | 346 | 485 | - | - | - | |
| Repurchase of Common Stock | - | - | -18 | -12 | - | |
| Common Dividends Paid | -200 | -179 | -158 | -150 | -140 | |
| Other Financing Activities | -14 | -14 | -12 | -9 | -14 | |
| Financing Cash Flow | 526 | 778 | 197 | -81 | 447 | |
| Net Cash Flow | 7 | -160 | 113 | -205 | 227 | |
| Free Cash Flow | -490 | -938 | -92 | -104 | -217 | |
| Free Cash Flow Margin | -14.24% | -32.09% | -3.48% | -4.34% | -10.12% | |
| Free Cash Flow Per Share | -4.70 | -9.58 | -1.03 | -1.16 | -2.42 | |
| Cash Interest Paid | 174 | 136 | 128 | 120 | 113 | |
| Cash Income Tax Paid | -90 | 12 | 37 | 16 | 17 | |
| Levered Free Cash Flow | -614.25 | -982 | -120 | 20.5 | -247 | |
| Unlevered Free Cash Flow | -473 | -865.75 | -18.13 | 106.13 | -162 | |
| Change in Net Working Capital | 50 | 234 | -59 | -91 | 8 | |