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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Cash flow from operating activities: |  |
Net income | $ 393.4 | $ 387.6
Adjustments to reconcile net income to net cash flow from operating activities: |  |
Depreciation and amortization | 147.5 | 112.3
Excess and obsolescence charges related to inventory | 27.5 | 17.4
Amortization of inventory step-up | 44.1 | 0.0
Share-based compensation | 72.8 | 75.6
Deferred income taxes | 39.9 | (64.5)
(Gain) loss on strategic investments | 31.3 | 79.6
Other | 25.4 | 31.4
Changes in operating assets and liabilities, net of effects of business acquired: |  |
Inventory | (77.7) | 27.9
Accrued expense and other current liabilities | (177.1) | (295.0)
Income tax assets and liabilities | (2.2) | 65.0
Other changes in operating assets and liabilities, net | (56.1) | (96.8)
Net cash flow provided by (used in) operating activities | 553.2 | 455.3
Cash flow from investing activities: |  |
Purchases of property, plant and equipment | (45.9) | (66.6)
Proceeds from sales and maturities of marketable securities | 0.0 | 406.7
Purchases of marketable securities | 0.0 | (1,321.2)
Acquisitions of intangible assets | (75.0) | (5.0)
Proceeds from sales of strategic investments | 55.6 | 33.8
Other | (0.7) | (0.7)
Net cash flow provided by (used in) investing activities | (66.0) | (953.0)
Cash flow from financing activities: |  |
Payments related to issuance of stock for share-based compensation arrangements, net | (46.9) | (60.1)
Repayment of borrowings and premiums paid | 400.0 | 0.0
Net (distribution) contribution to noncontrolling interest | 0.0 | 0.2
Other | 7.3 | 16.5
Net cash flow provided by (used in) financing activities | (439.6) | (43.4)
Net increase (decrease) in cash and cash equivalents | 47.6 | (541.1)
Effect of exchange rate changes on cash and cash equivalents | (23.1) | 20.0
Cash and cash equivalents, beginning of the period | 1,049.9 | 3,419.3
Cash and cash equivalents, end of the period | 1,074.4 | 2,898.2
Nonrelated Party |  |
Changes in operating assets and liabilities, net of effects of business acquired: |  |
Accounts receivable | 43.7 | 77.2
Related Party |  |
Changes in operating assets and liabilities, net of effects of business acquired: |  |
Accounts receivable | $ 40.7 | $ 37.6

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