Cash, Cash Equivalents, And Marketable Securities

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Cash, Cash Equivalents, And Marketable Securities

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Cash, Cash Equivalents, And Marketable Securities, Amortized Cost Basis

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Cash, Cash Equivalents, And Marketable Securities, Excluding Restricted Cash And Investments

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on 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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Amortized cost 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 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 currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI), classified as current.

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Amount of unrealized and realized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Cash and investments whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements. For use in an unclassified balance sheet.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Financial Instruments - Fair Values on Recurring Basis (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Equity Securities, FV-NI, Gain (Loss)
Equity securities, unrealized gain (loss)	$ (116)	$ 150	$ 6	$ 351
Recurring
Schedule of Investments [Line Items]
Cash	10,083		10,083		$ 10,063
Debt Securities, Available-for-sale
Gross unrealized gains	189		189
Gross unrealized losses	(30)		(30)
Cash, Cash Equivalents, and Marketable Securities
Cash, cash equivalents and marketable securities	79,224		79,224		84,653
Cash, cash equivalents and marketable securities, amortized cost	77,071		77,071
Less: Restricted cash, cash equivalents, and marketable securities	(236)		(236)		(257)
Total cash, cash equivalents, and marketable securities	78,988		78,988		84,396
Recurring \| Level 1 securities
Schedule of Investments [Line Items]
Equity securities	1,633		1,633		617
Recurring \| Level 1 securities \| Money market funds
Schedule of Investments [Line Items]
Money market funds	18,000		18,000		27,430
Recurring \| Level 1 securities \| Money market funds \| Money market funds
Schedule of Investments [Line Items]
Money market funds	18,000		18,000
Recurring \| Level 2 securities
Schedule of Investments [Line Items]
Equity securities	361		361		40
Recurring \| Level 2 securities \| Foreign government and agency securities
Debt Securities, Available-for-sale
Fixed income securities, amortized cost	178		178
Gross unrealized gains	1		1
Gross unrealized losses	0		0
Fixed income securities	179		179		5,131
Recurring \| Level 2 securities \| U.S. government and agency securities
Debt Securities, Available-for-sale
Fixed income securities, amortized cost	5,385		5,385
Gross unrealized gains	15		15
Gross unrealized losses	(7)		(7)
Fixed income securities	5,393		5,393		7,439
Recurring \| Level 2 securities \| Corporate debt securities
Debt Securities, Available-for-sale
Fixed income securities, amortized cost	36,775		36,775
Gross unrealized gains	152		152
Gross unrealized losses	(17)		(17)
Fixed income securities	36,910		36,910		29,988
Recurring \| Level 2 securities \| Asset-backed securities
Debt Securities, Available-for-sale
Fixed income securities, amortized cost	5,936		5,936
Gross unrealized gains	17		17
Gross unrealized losses	(5)		(5)
Fixed income securities	5,948		5,948		3,235
Recurring \| Level 2 securities \| Other fixed income securities
Debt Securities, Available-for-sale
Fixed income securities, amortized cost	714		714
Gross unrealized gains	4		4
Gross unrealized losses	(1)		(1)
Fixed income securities	$ 717		$ 717		$ 710