CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Cash flows from operating activities
Net income	$ 978.2	$ 3,785.4
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	113.9	112.6
Non-cash operating lease cost	19.3	21.6
Stock-based compensation (Note 9)	118.9	130.6
Gain on sale of business	0.0	(3,337.4)
Intangible assets impairment charges	40.0	0.0
Change in fair value of contingent consideration liabilities	(12.5)	0.0
Deferred income taxes	(63.2)	(224.9)
Gain on remeasurement of previously held interest upon acquisition	0.0	(24.6)
Loss on impairment	47.1	0.0
Other	2.3	2.7
Changes in operating assets and liabilities:
Accounts and other receivables, net	(55.4)	15.3
Inventories	39.7	(204.9)
Accounts payable and accrued liabilities	226.4	92.6
Income taxes	(199.4)	301.8
Prepaid expenses and other current assets	(17.5)	27.4
Intellectual property agreement accrual	(61.7)	(24.3)
Other	(31.8)	(4.1)
Net cash provided by operating activities	1,144.3	669.8
Cash flows from investing activities
Capital expenditures	(162.8)	(202.6)
Investments in unconsolidated affiliates	(49.8)	(32.9)
Purchases of held-to-maturity investments (Note 5)	(43.2)	(36.3)
Proceeds from held-to-maturity investments (Note 5)	54.2	50.4
Purchases of available-for-sale investments (Note 5)	(2,265.2)	(518.8)
Proceeds from available-for-sale investments (Note 5)	2,109.4	539.1
Investments in intangible assets	0.0	(25.4)
Payment for working capital adjustment and sale of product group (Note 4)	(36.3)	3,927.4
Business combinations, net of cash	0.0	(763.6)
Payment for acquisition options	(19.6)	(16.2)
Issuances of notes receivable	(93.4)	(28.0)
Other	(7.9)	(3.5)
Net cash (used in) provided by investing activities	(514.6)	2,889.6
Cash flows from financing activities
Purchases of treasury stock	(852.8)	(1,059.3)
Equity forward contract related to accelerated share repurchase agreement (Note 10)	0.0	(100.0)
Purchase of remaining noncontrolling interest in subsidiary (Note 6)	(233.7)	0.0
Proceeds from stock plans	141.8	150.9
Other	(0.7)	(3.2)
Net cash used in financing activities	(945.4)	(1,011.6)
Effect of currency exchange rate changes on cash, cash equivalents, and restricted cash	(48.3)	(12.4)
Net (decrease) increase in cash, cash equivalents, and restricted cash	(364.0)	2,535.4
Cash, cash equivalents, and restricted cash at beginning of period	3,058.8	1,148.0
Cash, cash equivalents, and restricted cash at end of period (Note 2)	$ 2,694.8	$ 3,683.4