| Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net income | -153 | 47 | 73 | 153 | 250 |
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| Depreciation | 81 | 75 | 77 | 79 | 80 |
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| Amortization | 182 | 127 | 227 | 224 | 222 |
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| Restructuring charges, net of cash paid | - | - | - | - | -16 |
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| Deferred taxes | 74 | -6 | 47 | 32 | 30 |
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| Share-based compensation expense | 5 | 12 | 18 | 29 | 32 |
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| Profit-sharing expense | - | 15 | 15 | 19 | 27 |
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| Noncash Lease Expense | 30 | 31 | 67 | 88 | 97 |
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| Net periodic pension expense (benefit) | - | - | 35 | 8 | -27 |
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| Loss (gain) on extinguishment of debt, net | - | -9 | 5 | -7 | -1 |
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| Other, net | - | -7 | -3 | - | 23 |
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| Pension contributions | - | - | 34 | 4 | 6 |
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| Accounts receivable | -120 | 99 | 148 | 69 | 2 |
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| Contract assets | -118 | 73 | 69 | -26 | 9 |
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| Inventories | -11 | 2 | 30 | -13 | -9 |
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| Prepaid expenses and other current assets | 2 | -4 | 1 | 14 | -6 |
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| Accounts payable | -24 | 78 | 71 | -14 | 16 |
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| Accrued liabilities and income taxes payable | 12 | 15 | 47 | 42 | -3 |
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| Contract liabilities | 17 | 19 | 71 | 51 | 46 |
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| Other assets and liabilities | - | 89 | 52 | 85 | 104 |
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| Net cash provided by operating activities | 496 | 182 | 270 | 514 | 620 |
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| Acquisitions, net of cash acquired | 319 | 86 | 2,839 | 83 | 778 |
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| Purchases of property and equipment | 38 | 55 | 79 | 86 | 84 |
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| Proceeds from sales of property, equipment, held for sale assets, and businesses | 17 | 20 | 17 | 54 | 33 |
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| Net cash used in investing activities | -340 | -121 | -2,901 | -115 | -829 |
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| Proceeds from long-term borrowings | 250 | 650 | 1,104 | - | 850 |
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| Payments on long-term borrowings | 21 | 321 | 34 | 484 | 437 |
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| Repurchases of long-term borrowings | - | - | 30 | - | - |
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| Payments of debt issuance costs | - | - | 29 | - | - |
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| Repurchases of common stock | 30 | - | 44 | 41 | - |
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| Proceeds from Issuance of Common Stock | - | - | - | - | 458 |
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| Conversion of Series B Preferred Stock | - | - | - | - | 600 |
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| Payments of acquisition-related consideration | 93 | 74 | 5 | 4 | 8 |
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| Restricted shares tendered for taxes | - | - | - | 3 | 13 |
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| Other financing activities | - | - | - | - | -5 |
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| Net cash provided by (used in) financing activities | 99 | 917 | 1,756 | -532 | 245 |
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| Effect of foreign currency exchange rate change on cash, cash equivalents, and restricted cash | - | - | -9 | 6 | -15 |
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| Net increase (decrease) in cash, cash equivalents, and restricted cash | 259 | 976 | -884 | -127 | 21 |
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| Cash paid for interest, net of interest income | 47 | 41 | 120 | 150 | 152 |
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| Income Taxes Paid, Net | 29 | 66 | 43 | 95 | 101 |
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| Accrued consideration | - | 18 | 1 | 11 | 31 |
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| Shares of common stock issued to profit sharing plan | - | - | - | - | 18 |
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| Stock Issued | - | - | - | 14 | 569 |
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