CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities
Net income	$ 513.9	$ 766.7
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	74.6	65.4
Non-cash operating lease cost	20.7	18.7
Stock-based compensation (Note 8)	71.7	62.9
Inventory write off	0.0	73.1
Change in fair value of contingent consideration liabilities, net (Note 6)	8.4	12.4
Deferred income taxes	(37.8)	9.5
Purchase of intellectual property (Note 4)	0.0	24.0
Other	0.6	(4.8)
Changes in operating assets and liabilities:
Accounts and other receivables, net	(9.2)	(70.3)
Inventories	(118.2)	(83.9)
Accounts payable and accrued liabilities	(53.9)	70.8
Income taxes	(65.6)	17.0
Prepaid expenses and other current assets	(22.1)	(2.5)
Litigation settlement accrual (Note 3)	269.2	(180.0)
Other	2.0	1.0
Net cash provided by operating activities	654.3	780.0
Cash flows from investing activities
Capital expenditures	(293.8)	(182.9)
Purchases of held-to-maturity investments (Note 5)	(112.0)	(30.0)
Proceeds from held-to-maturity investments (Note 5)	212.2	50.0
Purchases of available-for-sale investments (Note 5)	(394.3)	(95.0)
Proceeds from available-for-sale investments (Note 5)	358.3	278.3
Investments in intangible assets (Note 4)	0.0	(24.0)
Acquisition	0.0	(100.2)
Payment for acquisition option	(10.0)	(35.0)
Issuances of notes receivable	(26.5)	(8.4)
Other	(5.1)	(3.3)
Net cash used in investing activities	(271.2)	(150.5)
Cash flows from financing activities
Proceeds from issuance of debt, net	12.3	12.0
Payments on debt and finance lease obligations	(14.0)	(23.7)
Purchases of treasury stock	(625.2)	(263.3)
Proceeds from stock plans	103.5	125.5
Other	(4.9)	(3.1)
Net cash used in financing activities	(528.3)	(152.6)
Effect of currency exchange rate changes on cash and cash equivalents	(9.9)	(4.4)
Net (decrease) increase in cash and cash equivalents	(155.1)	472.5
Cash and cash equivalents at beginning of period	1,179.1	714.1
Cash and cash equivalents at end of period	$ 1,024.0	$ 1,186.6

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The cash outflow to acquire asset without physical form usually arising from contractual or other legal rights, excluding goodwill.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

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Amount of cash inflow from sale, maturity, prepayment and call of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Amount of cash inflow from the sale or maturity of long-term held-to-maturity securities.

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The cash inflow associated with the amount received from the stock plan during the period.

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Amount of noncash expense for share-based payment arrangement.

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