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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Cash flows from operating activities:    
Net income $ 2,200.3 $ 2,154.3
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 262.0 234.8
Stock-based compensation expense 507.4 453.3
Gains on marketable and other securities, net (389.9) (196.5)
Other, net (17.7) (2.9)
Deferred income taxes (274.3) (308.5)
Changes in assets and liabilities:    
Decrease (increase) in accounts receivable 629.6 (47.3)
Increase in inventories (194.8) (337.6)
Increase in prepaid expenses and other assets (410.2) (604.2)
(Decrease) increase in deferred revenue (125.2) 206.0
Increase in accounts payable, accrued expenses, and other liabilities 2.3 315.1
Total adjustments (10.8) (287.8)
Net cash provided by operating activities 2,189.5 1,866.5
Cash flows from investing activities:    
Purchases of marketable and other securities (5,394.4) (10,073.4)
Sales or maturities of marketable and other securities 5,626.2 8,186.7
Capital expenditures (448.3) (314.4)
Payments for intangible assets (230.0) (58.3)
Proceeds from sale of property, plant, and equipment 0.0 20.1
Acquisitions, net of cash acquired 0.0 (5.0)
Net cash used in investing activities (446.5) (2,244.3)
Cash flows from financing activities:    
Proceeds from issuance of Common Stock 92.1 1,119.7
Payments in connection with Common Stock tendered for employee tax obligations (9.9) (655.5)
Repurchases of Common Stock (2,102.9) (895.2)
Dividends paid (186.4) 0.0
Other (10.3) 0.0
Net cash used in financing activities (2,217.4) (431.0)
Effect of exchange rate changes on cash, cash equivalents, and restricted cash 1.0 (0.8)
Net decrease in cash, cash equivalents, and restricted cash (473.4) (809.6)
Cash, cash equivalents, and restricted cash at beginning of period 2,489.0 2,737.8
Cash, cash equivalents, and restricted cash at end of period $ 2,015.6 $ 1,928.2