| In millions, except per share items | Jun-30-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Mar-05-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 8-K | 10-K | 10-Q |
| Net income | -150 | 34 | 35 | 150 | -57 | -56 | -67 | -86 |
| Depreciation and amortization | | 65 | 67 | 68 | 69 | | 68 | 68 |
| Stock-based compensation | | 17 | | | | | 19 | |
| Deferred taxes | | -2 | | | | | -1 | |
| Change in working capital [+] | | -12 | | | | | -61 | |
| Accounts receivable | | -33 | | | | | -70 | |
| Other | | 21 | | | | | 9 | |
| Other operating activities | 150 | -32 | 46 | -71 | 32 | | | 84 |
| Cash from operations | 0 | 70 | 148 | 147 | 44 | | -42 | 66 |
| |
| Capital expenditures [+] | 0 | -272 | 52 | 31 | 21 | | -82 | 15 |
| Purchases of property and equipment | | -272 | 52 | 31 | 21 | | -82 | 15 |
| Sales of property and equipment | | | 45 | 98 | | | | 286 |
| Other cash from investing | | 219 | -104 | 39 | -42 | | 51 | -30 |
| Cash from investing | 0 | -53 | -7 | 168 | -21 | | -31 | 271 |
| |
| Cash dividends paid | | -7 | | | | | | |
| Repurchase of common stock, net | | -9 | | -157 | -61 | | | |
| Financing costs | | -14 | | | 3 | | -30 | |
| Other cash from financing | | -76 | -8 | -8 | -5 | | -36 | -439 |
| Cash from financing | 0 | -78 | -8 | -165 | -69 | | -6 | -439 |
| |
| Free cash flow | 0 | -202 | 200 | 178 | 65 | | -124 | 81 |
| Per share (diluted) | $0.00 | ($0.89) | $0.89 | $0.78 | $0.28 | | ($0.53) | $0.34 |