| Dec 31, 2011 | Dec 31, 2012 | Dec 31, 2013 | Dec 31, 2014 | Dec 31, 2015 | Dec 31, 2016 | Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net income | - | - | - | - | - | - | - | - | - | - | 7 | 218 | 195 | 91 |
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| Depreciation and amortization | - | - | - | - | - | - | - | - | - | - | - | - | - | 133 |
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| Stock-based compensation expense | 8 | 8 | 8 | 9 | 10 | 10 | 11 | 9 | 9 | 9 | 7 | 6 | 8 | 9 |
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| Gain on disposition of assets, net | - | - | - | - | - | - | - | - | - | - | 11 | 9 | 9 | 8 |
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| Gain on Benefit Plan Financing Arrangement | - | - | - | - | - | - | - | - | - | - | - | - | - | -1 |
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| Deferred income tax provision | 77 | 5 | -13 | 12 | -33 | -34 | -43 | 21 | -22 | -26 | 5 | 19 | 9 | 7 |
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| Pension settlement charges | - | - | - | - | - | - | - | - | - | - | - | - | -18 | - |
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| Other Noncash | - | - | - | - | - | - | - | - | - | - | - | - | 0 | 1 |
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| Accounts receivable | 167 | 74 | 50 | 198 | -402 | -65 | 209 | -54 | -81 | -81 | 91 | 158 | -105 | -48 |
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| Income taxes receivable | -10 | 9 | -2 | 19 | 21 | 5 | -17 | -4 | -12 | 59 | -24 | -16 | 10 | -48 |
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| Inventories | 37 | -40 | -14 | 30 | -27 | -20 | 6 | 16 | -21 | -18 | -4 | 18 | 12 | -3 |
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| Prepaid expenses | 3 | -2 | -2 | -0 | -0 | -2 | 2 | 1 | 1 | -1 | 1 | 8 | -5 | 2 |
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| Other current assets | 31 | 26 | -1 | 1 | 3 | -0 | 1 | -3 | -0 | -0 | -0 | -0 | -0 | 0 |
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| Other non-current assets | -0 | 6 | 2 | 2 | -2 | 2 | 5 | -1 | 3 | 4 | 1 | -9 | 1 | 2 |
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| Accounts payable | 30 | 5 | 14 | 36 | -62 | -6 | 29 | -8 | -42 | -9 | 33 | 36 | -35 | 0 |
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| Income taxes payable | 5 | 4 | -6 | 1 | 7 | -3 | -2 | 1 | -3 | -0 | -0 | -0 | -0 | 0 |
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| Unearned revenue | - | - | - | - | - | - | - | - | - | - | - | - | 16 | 30 |
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| Accrued payroll and related expenses | - | - | - | - | - | - | - | - | - | - | - | - | -2 | -6 |
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| Pension liabilities | 1 | -1 | 3 | 2 | 1 | -1 | 4 | -8 | - | - | - | - | -5 | - |
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| Accrued insurance expenses | 1 | 1 | -0 | -0 | -1 | -0 | 1 | 1 | 1 | -2 | 5 | -7 | 2 | 3 |
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| Accrued state, local and other taxes | 2 | -2 | -2 | 2 | -4 | 0 | 6 | -6 | -1 | 0 | -1 | 2 | 0 | -1 |
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| Other accrued expenses | 1 | -1 | -2 | -1 | -0 | 5 | -5 | -1 | -2 | -7 | -4 | -4 | -6 | -6 |
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| Pension and retirement plan liabilities | - | - | - | - | - | - | - | - | 7 | -3 | -1 | -5 | 1 | 1 |
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| Long-term accrued insurance expenses | - | - | -0 | -0 | 1 | -2 | 1 | 2 | 2 | -2 | -0 | -5 | 3 | 2 |
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| Other long-term liabilities | 1 | 1 | 4 | 8 | 2 | -14 | 1 | -1 | 0 | -2 | 4 | 2 | 6 | 1 |
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| Net cash provided by operating activities | 386 | - | - | - | - | - | - | 389 | 209 | 78 | 48 | 201 | 395 | 349 |
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| Capital expenditures | 416 | 329 | 202 | 372 | 167 | 34 | 118 | 243 | 251 | 65 | 68 | 140 | 181 | 220 |
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| Proceeds from sale of assets | 25 | 19 | 11 | 19 | 10 | 13 | 13 | 13 | 15 | 22 | 20 | 16 | 18 | 18 |
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| Purchase of business | - | - | - | - | - | - | - | - | - | - | - | - | 79 | - |
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| Proceeds from Life Insurance Policy | - | - | - | - | - | - | - | 2 | 1 | 2 | - | - | - | 2 |
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| Re-investment in benefit plan financing arrangement | - | - | - | - | - | - | - | 2 | 1 | 2 | - | - | - | 2 |
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| Net cash used for investing activities | -392 | - | - | - | - | - | - | -220 | -236 | -43 | -48 | -124 | -242 | -202 |
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| Payment of dividends | 47 | 114 | 88 | 92 | 34 | 11 | 43 | 101 | 32 | - | - | 9 | 35 | 34 |
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| Cash paid for common stock purchased and retired | 34 | 30 | 25 | 50 | 4 | 3 | 27 | 43 | 7 | 1 | 1 | 1 | 21 | 10 |
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| Cash paid for finance lease and finance obligations | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 |
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| Net cash used for financing activities | 4 | - | - | - | - | - | - | -144 | -40 | -1 | -2 | -34 | -56 | -45 |
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| Net increase in cash and cash equivalents | - | - | - | - | - | - | - | - | -66 | 34 | -2 | 44 | 97 | 103 |
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| Interest paid | - | - | - | - | - | - | - | - | - | - | 0 | 0 | 0 | 0 |
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| Capital Expenditures Incurred but Not yet Paid | - | - | - | - | - | - | - | - | - | - | 4 | 9 | 9 | 8 |
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