| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q |
| Net income | 452.7 | 467.9 | 437.7 | 391.3 | 335.7 | 276.2 | 242.0 | 212.2 |
| Depreciation and amortization | 38.4 | 38.0 | 37.1 | 36.7 | 34.7 | 32.3 | 28.7 | 25.8 |
| Stock-based compensation | 153.3 | 158.2 | 161.0 | 156.9 | 145.5 | 134.7 | 123.5 | 115.3 |
| Deferred taxes | -12.8 | -13.5 | -13.2 | -5.0 | -5.2 | -4.2 | -2.8 | -4.0 |
| Change in working capital [+] | -101.1 | -126.7 | -209.7 | -195.9 | -152.1 | -73.8 | -56.3 | 35.6 |
| Accounts receivable | -43.6 | -64.0 | -77.9 | -73.6 | -48.0 | -36.2 | -38.0 | 13.7 |
| Inventories | -67.8 | -120.2 | -188.1 | -189.6 | -182.5 | -136.0 | -102.3 | -59.9 |
| Accounts payable | -4.7 | -7.9 | -11.2 | 9.2 | 26.3 | 15.2 | 32.9 | 20.6 |
| Accrued expenses | 28.1 | 30.2 | 22.5 | 13.1 | 12.0 | 23.9 | 22.7 | 27.8 |
| Income taxes | 3.5 | 20.7 | 16.6 | 13.4 | 8.4 | 26.0 | 11.8 | 6.6 |
| Other | -16.6 | 14.6 | 28.5 | 31.6 | 31.7 | 33.3 | 16.5 | 26.8 |
| Other operating activities | -187.4 | -165.9 | -166.2 | -161.3 | 0.0 | -14.9 | -15.1 | -13.4 |
| Cash from operations | 343.0 | 358.1 | 246.7 | 222.7 | 358.7 | 350.4 | 320.0 | 371.5 |
| |
| Capital expenditures | -36.8 | -40.8 | -58.8 | -63.6 | -74.9 | -102.3 | -94.4 | -88.3 |
| Purchases of property and equipment | -36.8 | -40.8 | -58.8 | -63.6 | -74.9 | -102.3 | -94.4 | -88.3 |
| Purchases of intangible assets | | | | | | | | -0.8 |
| Purchases of short-term investments, net | 35.4 | 69.6 | 62.3 | 64.9 | -41.4 | -102.6 | -281.6 | -149.4 |
| Purchases of short-term investments | -258.9 | -178.9 | -65.8 | | -157.9 | -209.6 | -394.9 | -418.3 |
| Sales of short-term investments | 294.3 | 248.5 | 128.1 | 123.9 | 116.5 | 107.1 | 113.3 | 268.9 |
| Other cash from investing | -17.5 | -17.4 | -15.9 | -3.4 | -2.9 | -2.0 | -2.0 | -6.4 |
| Cash from investing | -18.9 | 11.4 | -12.5 | -2.1 | -120.0 | -207.6 | -378.9 | -244.9 |
| |
| Cash dividends paid | -158.5 | -145.9 | -138.0 | -130.2 | -122.4 | -114.7 | -109.4 | -104.0 |
| Option exercises | 10.0 | 11.0 | 11.2 | 12.4 | 12.9 | 14.1 | 22.0 | 22.1 |
| Other cash from financing | 17.9 | 20.1 | 20.4 | 22.4 | 22.9 | 25.3 | 41.2 | 41.3 |
| Cash from financing | -150.6 | -136.8 | -128.8 | -120.2 | -112.4 | -103.5 | -90.2 | -84.9 |
| |
| Free cash flow | 306.2 | 317.2 | 187.8 | 159.1 | 283.8 | 248.0 | 225.6 | 283.1 |
| Per share (diluted) | $6.31 | $6.55 | $3.89 | $3.30 | $5.90 | $5.17 | $4.72 | $5.95 |
| |
| Cash paid for income taxes | 102.1 | 83.5 | 85.0 | 66.4 | 53.3 | 21.0 | 21.1 | 16.6 |