| In millions, except per share items | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 |
| | 8-K | 8-K | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Operating activities: | | | | | | | | |
| Net income | | | 313.6 | 369.4 | 382.7 | 387.2 | 523.0 | 435.2 |
| Adjustments to reconcile net income to net cash from operating activities: | | | | | | | | |
| Depreciation and loss on disposal of property, plant, and equipment | | | | 77.7 | 74.3 | | 68.0 | 64.8 |
| Amortization of intangible assets | | | 6.2 | 6.1 | 6.6 | 6.3 | 7.6 | 6.9 |
| Gain on sale of business | | | | -3.8 | | | | |
| Loss (gain) on investments, accretion, and amortization, net | | | | 26.0 | 12.7 | | 8.3 | -12.6 |
| Deferred income taxes | | | | -14.4 | -22.0 | | -68.7 | 44.7 |
| Share-based compensation expense | | | | 120.8 | 117.8 | | 108.1 | 103.2 |
| Amortization of contract acquisition assets | | | | 6.6 | 6.5 | | 5.1 | 4.9 |
| Changes in operating assets and liabilities, net of effects of acquisitions: | | | | | | | | |
| Accounts receivable | | | | -123.4 | -87.6 | | -45.3 | -14.3 |
| Inventory | | | | -120.1 | -66.8 | | -51.2 | -41.2 |
| Prepaids and other assets | | | | -21.7 | 11.8 | | -103.8 | -73.2 |
| Accounts payable | | | | -1.9 | 0.2 | | 14.5 | 23.7 |
| Accrued compensation and employee benefits | | | | -130.3 | 84.8 | | 59.2 | -40.2 |
| Deferred revenue | | | | 11.4 | 30.3 | | 3.8 | 6.8 |
| Other liabilities | | | | 20.6 | 16.4 | | 14.1 | -31.1 |
| Net cash provided by operating activities | | | 319.8 | 223.0 | 567.7 | 393.5 | 542.7 | 477.6 |
| |
| Investing activities: | | | | | | | | |
| Purchase of investments | | | | -1,187.3 | -1,238.3 | | -1,674.6 | -1,833.1 |
| Proceeds from sales of investments | | | | | 12.5 | | 0.1 | 72.0 |
| Proceeds from maturities of investments | | | | 1,067.7 | 735.7 | | 1,365.5 | 1,231.4 |
| Purchase of property, plant, and equipment and intellectual property | | | | -95.1 | -150.9 | | -75.7 | -58.6 |
| Acquisition of businesses, net of cash, and other investing activities | | | | | 17.4 | | | -8.7 |
| Net cash provided by (used in) investing activities | | | | -214.7 | -641.0 | | -384.7 | -597.0 |
| |
| Financing activities: | | | | | | | | |
| Proceeds from issuance of common stock relating to employee stock plans | | | | 80.0 | 31.7 | | 69.7 | 84.0 |
| Taxes paid related to net share settlement of equity awards | | | | -172.2 | -10.4 | | -9.6 | -178.3 |
| Repurchase of common stock | | | | -106.5 | | | | |
| Payment of deferred purchase consideration | | | | -1.2 | -21.9 | | -9.7 | -7.9 |
| Net cash used in financing activities | | | | -199.9 | 18.6 | | 58.3 | -102.2 |
| Effect of exchange rate changes on cash, cash equivalents, and restricted cash | | | | 3.8 | | | -2.6 | 0.8 |
| Net increase (decrease) in cash, cash equivalents, and restricted cash | | | | -187.8 | -55.8 | | 212.9 | -220.8 |