| In millions, except per share items | Sep-30-15 | Jun-30-15 | Mar-31-15 | Dec-31-14 | Sep-30-14 | Jun-30-14 | Mar-31-14 | Dec-31-13 |
| | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K |
| Net income | 7.0 | -302.0 | -15.0 | 62.0 | -31.0 | -292.0 | -390.0 | 23.0 |
| Depreciation and amortization [+] | 54.0 | 48.0 | 50.0 | 50.0 | 58.0 | 68.0 | 67.0 | 75.0 |
| Depreciation | 31.0 | 27.0 | 29.0 | 28.0 | 28.0 | 27.0 | 24.0 | 31.0 |
| Amortization | 23.0 | 21.0 | 21.0 | 22.0 | 30.0 | 41.0 | 43.0 | 44.0 |
| Asset impairment charges | | | | | | | 339.0 | |
| Tax benefit from stock-based compensation | -7.0 | | | | | | | |
| Deferred taxes | -12.0 | -2.0 | -6.0 | 1.0 | -15.0 | -7.0 | -83.0 | -4.0 |
| Change in working capital [+] | 24.0 | -67.0 | 70.0 | -55.0 | 65.0 | -78.0 | 9.0 | -42.0 |
| Accounts receivable | 5.0 | -6.0 | 125.0 | -192.0 | 23.0 | -1.0 | 101.0 | -172.0 |
| Other | 19.0 | -61.0 | -55.0 | 137.0 | 42.0 | -77.0 | -92.0 | 130.0 |
| Other operating activities | | | | 52.0 | 59.0 | 309.0 | 144.0 | |
| Cash from operations | 141.0 | 28.0 | 154.0 | 110.0 | 136.0 | 0.0 | 86.0 | 97.0 |
| |
| Capital expenditures [+] | -30.0 | -27.0 | -28.0 | -45.0 | -40.0 | -30.0 | -28.0 | -41.0 |
| Purchases of property and equipment | -14.0 | 1.0 | -28.0 | -45.0 | -21.0 | -3.0 | -28.0 | -41.0 |
| Capitalized product costs | -16.0 | -28.0 | | | -19.0 | -27.0 | | |
| Acquisitions | | -21.0 | -4.0 | | -4.0 | | | -1.0 |
| Other cash from investing | | 1.0 | | | 2.0 | | | |
| Cash from investing | -30.0 | -47.0 | -31.0 | -45.0 | -42.0 | -30.0 | -23.0 | -98.0 |
| |
| Cash dividends paid | | | | -2.0 | | | | -3.0 |
| Other cash from financing | -44.0 | -6.0 | -4.0 | -4.0 | -2.0 | -9.0 | -451.0 | -62.0 |
| Cash from financing | -44.0 | -6.0 | -4.0 | -6.0 | -2.0 | -9.0 | -451.0 | -65.0 |
| |
| Free cash flow | 127.0 | 29.0 | 126.0 | 65.0 | 115.0 | -3.0 | 58.0 | 56.0 |
| Per share (diluted) | | $0.00 | | | | ($0.10) | | |