| In millions, except per share items | Dec-25-21 | Dec-26-20 | Dec-28-19 | Dec-29-18 | Dec-30-17 | Dec-31-16 | Dec-26-15 | Dec-27-14 |
| | 10-K | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K | 10-K |
| Net income | 18.6 | 112.2 | 12.4 | 155.9 | -265.4 | 223.6 | 185.8 | 214.4 |
| Depreciation and amortization | 39.7 | 41.0 | 47.2 | 58.2 | 60.5 | 57.5 | 62.4 | 63.7 |
| Asset impairment charges | 23.0 | 14.1 | 13.6 | 8.8 | 77.4 | 10.8 | 27.8 | 19.4 |
| Stock-based compensation | 8.6 | 8.9 | 10.4 | 14.5 | 22.6 | 20.0 | 20.0 | 18.9 |
| Tax benefit from stock-based compensation | | | | | | -0.6 | -6.0 | -6.3 |
| Deferred taxes | -36.6 | 5.0 | 12.0 | 59.8 | 307.7 | -32.9 | -45.2 | -59.9 |
| Change in working capital [+] | -117.8 | 56.3 | -52.8 | -168.9 | 11.6 | -29.2 | -29.9 | -7.1 |
| Accounts receivable | 1.5 | -9.7 | -0.5 | -33.8 | -33.7 | 0.9 | -10.7 | -28.2 |
| Inventories | -51.0 | -11.8 | 2.8 | -25.8 | -18.8 | -2.8 | -8.2 | -39.5 |
| Income taxes | -33.6 | 39.0 | -5.2 | -32.9 | 19.6 | -6.1 | -2.9 | 24.4 |
| Other | -34.7 | 38.8 | -49.9 | -76.4 | 44.5 | -21.2 | -8.1 | 36.2 |
| Other operating activities | 175.9 | -70.9 | 43.0 | 3.7 | 3.0 | -12.2 | 10.8 | 41.0 |
| Cash from operations | 111.4 | 166.6 | 85.8 | 132.0 | 217.4 | 237.0 | 225.7 | 284.1 |
| |
| Capital expenditures [+] | -35.1 | -27.6 | -59.6 | -75.4 | -72.3 | -61.6 | -61.1 | -69.4 |
| Purchases of property and equipment | -35.1 | -27.6 | -59.6 | -75.4 | -72.3 | -61.6 | -61.1 | -69.4 |
| Sales of property and equipment | 53.3 | 59.1 | 34.0 | 40.7 | 14.7 | 35.9 | 18.0 | 7.1 |
| Cash from investing | 18.2 | 31.5 | -25.6 | -34.7 | -57.6 | -25.7 | -43.1 | -62.3 |
| |
| Cash dividends paid | | | -74.3 | -137.8 | -139.5 | -138.8 | -138.0 | -135.5 |
| Repurchase of common stock, net | -25.0 | | | -101.7 | -2.5 | -1.7 | -1.5 | -92.3 |
| Option exercises | 0.5 | 0.2 | | 0.3 | 11.8 | 0.8 | 16.1 | 15.7 |
| Financing costs | -9.9 | -20.7 | -2.3 | | | | -0.7 | |
| Other cash from financing | -3.6 | -189.5 | -13.3 | 160.8 | 37.2 | -52.0 | -2.2 | 32.5 |
| Cash from financing | -19.2 | -169.0 | -85.3 | -79.0 | -116.6 | -193.3 | -157.1 | -211.0 |
| |
| Free cash flow | 76.3 | 139.0 | 26.2 | 56.6 | 145.1 | 175.4 | 164.6 | 214.7 |
| Per share (diluted) | $1.44 | $2.66 | $0.53 | $1.13 | $2.86 | $3.46 | $3.27 | $4.21 |