Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022
Cash flows from operating activities:
Net income		$ 185.9	$ 290.6
Adjustments to reconcile net income to net cash provided by operating activities:
Share-based compensation expense		197.6	153.9
Depreciation, amortization, and accretion		147.4	165.4
Deferred income taxes	[1]	(154.5)	(173.2)
Operating lease assets expense		30.5	30.3
Gain on divestiture		0.0	(45.8)
Loss (gain) on privately-held investments, net	[1],[2],[3]	92.0	(5.8)
Loss from equity method investment		5.9	2.6
Impairment of assets	[1]	26.1	5.8
Other	[1]	(2.3)	10.1
Changes in operating assets and liabilities, net of acquisitions:
Accounts receivable, net		289.7	(34.3)
Inventory	[1]	(385.7)	(256.4)
Prepaid expenses and other assets	[1]	193.3	(206.4)
Accounts payable		(21.9)	75.7
Accrued compensation		(82.5)	(85.9)
Income taxes payable		135.7	(11.2)
Other accrued liabilities		30.0	(4.6)
Deferred revenue		176.5	67.2
Net cash provided by (used in) operating activities		863.7	(22.0)
Cash flows from investing activities:
Purchases of property and equipment		(124.0)	(73.4)
Proceeds from divestiture, net		0.0	89.1
Purchases of available-for-sale debt securities		(28.1)	(104.1)
Proceeds from sales of available-for-sale debt securities		28.2	102.3
Proceeds from maturities and redemptions of available-for-sale debt securities		175.1	330.7
Purchases of equity securities		(5.5)	(15.5)
Proceeds from sales of equity securities		11.0	3.8
Payments for business acquisitions, net of cash and cash equivalents acquired		0.0	(3.9)
Funding of loan receivable		(7.7)	0.0
Other		1.8	2.2
Net cash provided by investing activities		50.8	331.2
Cash flows from financing activities:
Repurchase and retirement of common stock		(396.8)	(226.8)
Proceeds from issuance of common stock		61.7	56.8
Payment of dividends		(210.5)	(202.8)
Payment of debt issuance costs		(1.3)	0.0
Net cash used in financing activities		(546.9)	(372.8)
Effect of foreign currency exchange rates on cash, cash equivalents, and restricted cash		(4.1)	(29.5)
Net increase (decrease) in cash, cash equivalents, and restricted cash		363.5	(93.1)
Cash, cash equivalents, and restricted cash at beginning of period		897.7	942.7
Cash, cash equivalents, and restricted cash at end of period		1,261.2	849.6
Non-cash investing activity:
Equity method investment		$ 0.0	$ 40.3

[1] The prior period amounts have been reclassified to conform to the current period presentation.

[2] Privately-held investments represent investments in privately-held debt and redeemable preferred stock securities and equity investments without readily determinable fair value

[3] The prior period amounts have been reclassified to conform to the current period presentation