| Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Service | 806 | 865 | 906 | 942 |
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| Product | 126 | 139 | 144 | 159 |
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| Total net revenues | 931 | 1,004 | 1,049 | 1,100 |
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| Service | 357 | 391 | 419 | 440 |
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| Product | 56 | 56 | 54 | 59 |
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| Cost of Revenue | 413 | 447 | 472 | 498 |
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| Gross profit | 519 | 557 | 577 | 602 |
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| Selling, General and Administrative Expense | 198 | 246 | 237 | 243 |
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| Amortization of intangible assets | 64 | 63 | 64 | 62 |
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| Total operating expenses | 262 | 309 | 300 | 305 |
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| Operating income | 257 | 248 | 277 | 298 |
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| Interest expense, net | -74 | -80 | -143 | -165 |
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| Loss on refinancing of debt | - | - | - | -24 |
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| Impairment of investment in unconsolidated affiliate | - | 10 | - | - |
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| Foreign exchange loss | -1 | -0 | -0 | -0 |
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| Other income, net | 15 | 6 | 7 | 5 |
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| Income (loss) before income taxes | 176 | -243 | 106 | 114 |
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| Income Tax Expense (Benefit) | 59 | -10 | 55 | 69 |
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| Net income (loss) | 117 | -234 | 51 | 44 |
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| Pension and post-retirement benefits (net of taxes of $2,804, $(3,420) and $7,022, respectively) | -27 | -21 | 11 | -8 |
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| Interest rate derivatives (net of taxes of $(1,856), $(5,467) and $7,387, respectively) | 0 | 21 | -16 | -5 |
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| Foreign currency translation | -16 | -65 | 40 | -119 |
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| Comprehensive income (loss) | 127 | -257 | 65 | -71 |
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| Earnings Per Share, Basic | 0.41 | -0.83 | 0.18 | 0.16 |
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| Earnings Per Share, Diluted | 0.41 | -0.83 | 0.18 | 0.16 |
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