| In millions, except per share items | Mar-31-15 | Dec-31-14 | Sep-30-14 | Jun-30-14 | Mar-31-14 | Dec-31-13 | Sep-30-13 | Jun-30-13 |
| | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q |
| Net income | 85.4 | 126.3 | 108.3 | 127.1 | 154.1 | 173.4 | 224.8 | 217.2 |
| Depreciation and amortization | 91.1 | 92.3 | 95.9 | 94.0 | 91.6 | 92.3 | 88.4 | 88.6 |
| Stock-based compensation | 26.7 | 25.6 | 22.5 | 21.1 | 22.6 | 25.9 | 24.5 | 36.1 |
| Tax benefit from stock-based compensation | -4.9 | -2.4 | -2.3 | -2.3 | -1.4 | | -6.9 | -6.9 |
| Deferred taxes | -42.9 | -36.5 | -31.5 | -3.2 | 1.6 | 3.8 | 5.6 | 8.8 |
| Change in working capital [+] | -215.3 | -194.8 | -28.9 | -192.2 | -144.1 | -184.7 | -330.1 | -175.9 |
| Accounts receivable | -40.7 | 33.7 | 61.7 | 86.5 | -107.5 | -164.6 | -295.3 | -237.5 |
| Inventories | 36.0 | 8.5 | -34.9 | -169.6 | -119.6 | -162.3 | -210.4 | -95.7 |
| Other current assets | -22.3 | -12.8 | -10.2 | -13.6 | -25.1 | -33.3 | -7.0 | -26.2 |
| Income taxes | 2.5 | 13.9 | 0.6 | -8.0 | -21.1 | -29.0 | 25.9 | 5.9 |
| Other | -190.8 | -238.1 | -46.1 | -87.5 | 129.2 | 204.5 | 156.7 | 177.6 |
| Other operating activities | 278.5 | 244.3 | 120.5 | 17.7 | -88.9 | -170.7 | -125.2 | -108.0 |
| Cash from operations | 218.6 | 254.8 | 284.5 | 62.2 | 35.5 | -66.8 | -118.9 | 59.9 |
| |
| Capital expenditures [+] | -78.7 | -58.0 | -69.8 | -74.6 | -73.5 | -82.6 | -80.7 | -87.6 |
| Purchases of property and equipment | -78.7 | -58.0 | -69.8 | -74.6 | -73.5 | -82.6 | -80.7 | -87.6 |
| Sales of property and equipment | 0.8 | | 0.7 | 2.0 | | | 1.5 | |
| Acquisitions | | | -1.0 | | | | | |
| Other cash from investing | -14.1 | -15.7 | -16.4 | -19.3 | 5.7 | -2.3 | -1.6 | -3.6 |
| Cash from investing | -93.0 | -74.0 | -86.5 | -91.9 | -66.4 | -83.5 | -80.8 | -91.1 |
| |
| Repurchase of common stock, net | -10.8 | -5.6 | -5.4 | -5.2 | -4.9 | | | |
| Option exercises | 5.0 | | 4.3 | 3.8 | | | 5.4 | 5.4 |
| Financing costs | | -0.1 | -4.9 | | | -9.8 | -4.8 | |
| Other cash from financing | -148.8 | -165.5 | -201.1 | 4.7 | 60.9 | 229.1 | 240.2 | 73.6 |
| Cash from financing | -164.5 | -175.3 | -205.9 | 5.5 | 61.8 | 232.3 | 238.1 | 67.2 |
| |
| Free cash flow | 139.9 | 196.8 | 214.7 | -12.4 | -38.0 | -149.4 | -199.6 | -27.7 |
| Per share (diluted) | $1.82 | $2.55 | $2.79 | ($0.16) | ($0.49) | ($1.95) | ($2.60) | ($0.36) |