CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Operating activities
Net income	$ 79	$ 3,657
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Stock-based compensation	75	44
Depreciation and amortization	78	79
Amortization/accretion of investments	(17)	18
Loss on equity investments, net	18	0
Deferred income taxes	(310)	(146)
Other non-cash items	(4)	0
Changes in assets and liabilities, net of acquisition of business:
Accounts receivable	272	1
Prepaid expenses and other assets	(212)	(414)
Inventory	216	(501)
Right-of-use assets, operating leases	4	10
Accounts payable	(117)	(35)
Accrued liabilities	(495)	114
Deferred revenue	(819)	(805)
Income taxes payable	18	716
Operating lease liabilities	4	(10)
Other liabilities	(15)	35
Net cash (used in) provided by operating activities	(1,225)	2,763
Investing activities
Purchases of marketable securities	(1,085)	(5,572)
Proceeds from maturities of marketable securities	1,360	441
Proceeds from sales of marketable securities	1,957	1,377
Purchases of property, plant and equipment	(113)	(132)
Acquisition of business, net of cash acquired	(85)	0
Investment in convertible notes and equity securities	(23)	(35)
Net cash provided by (used in) investing activities	2,011	(3,921)
Financing activities
Proceeds from issuance of common stock through equity plans	9	12
Repurchase of common stock	(526)	(623)
Changes in financing lease liabilities	(25)	(31)
Net cash used in financing activities	(542)	(642)
Net increase (decrease) in cash, cash equivalents and restricted cash	244	(1,800)
Cash, cash equivalents and restricted cash, beginning of year	3,217	6,860
Cash, cash equivalents and restricted cash, end of period	3,461	5,060
Non-cash investing and financing activities
Purchases of property and equipment included in accounts payable and accrued liabilities	98	64
Right-of-use assets reduced through finance lease modifications and reassessments	(60)	0
Right-of-use assets obtained in exchange for financing lease liabilities	$ 0	$ 94