| In millions, except per share items | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 | Dec-31-10 | Dec-31-09 | Dec-31-08 | Dec-31-07 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Cash flow from operations: | | | | | | | | |
| Reconciliation of income (loss) from continuing operations to cash flow from (used in) operations: | | | | | | | | |
| Depreciation and amortization | 243.0 | 286.0 | 313.0 | 703.0 | 726.0 | 771.0 | 746.0 | 689.0 |
| Deferred income tax provision (benefit) | -104.0 | -24.0 | -54.0 | -155.0 | -83.0 | -157.0 | -94.0 | -168.0 |
| Stock compensation expense | | | | | | | | |
| Amortization of deferred financing costs and debt discount | 18.0 | 37.0 | 36.0 | 40.0 | 43.0 | 42.0 | | |
| Loss on extinguishment of debt | 61.0 | 6.0 | 82.0 | 3.0 | 58.0 | | | |
| Other non-cash items | | 1.0 | -1.0 | 2.0 | 3.0 | -14.0 | | |
| Changes in working capital: | | | | | | | | |
| Accounts receivable and other current assets | -57.0 | -3.0 | 58.0 | 59.0 | 25.0 | -15.0 | | |
| Accounts payable and accrued expenses | -18.0 | -5.0 | -11.0 | -35.0 | 27.0 | -73.0 | -18.0 | 58.0 |
| Investment activities: | | | | | | | | |
| Financing activities: | | | | | | | | |
| Cash received from borrowings, net of fees | | | | | | | | |
| Cash used to purchase treasury stock | | | | | | | | |
| Increase (decrease) in cash and cash equivalents | | | | | | | | |
| |
| Supplemental information: | | | | | | | | |
| Non-cash financing activities: | | | | | | | | |
| Distribution of net assets of SpinCo (See Note 1) | | | | | | | | |
| Receipt of SpinCo Notes in connection with the AS Split-Off (See Note 1) | | | | | | | | |