Cash, Cash Equivalents And Debt Available-For-Sale Securities, Amortized Cost Basis [Abstract]

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Cash, Cash Equivalents, And Marketable Securities

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

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Equity Investment, Fair Value Disclosure

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Gross Unrealized Gains [Abstract]

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Gross Unrealized Losses [Abstract]

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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 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	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Equity Securities, FV-NI, Gain (Loss)
Equity securities, unrealized gain (loss)	$ 11,600	$ 448	$ 4
Rivian
Equity Securities, FV-NI, Gain (Loss)
Equity investment, fair value	15,600
Recurring
Schedule of Investments [Line Items]
Cash	10,942	10,063
Cost or Amortized Cost
Cash, cash equivalents and short-term investments	79,012	83,624
Gross Unrealized Gains
Cash equivalents and marketable securities	93	377
Gross Unrealized Losses
Cash equivalents and marketable securities	(182)	(5)
Total Estimated Fair Value
Cash, cash equivalents and short-term investments	96,309	84,653
Less: Restricted cash, cash equivalents, and marketable securities	(260)	(257)
Total cash, cash equivalents, and marketable securities	96,049	84,396
Recurring \| Level 1 securities
Total Estimated Fair Value
Equity securities	1,646	617
Recurring \| Level 1 securities \| Money market funds
Schedule of Investments [Line Items]
Money market funds	20,312	27,430
Recurring \| Level 1 securities \| Money market funds \| Money market funds
Schedule of Investments [Line Items]
Money market funds	20,312
Recurring \| Level 2 securities
Total Estimated Fair Value
Equity securities	15,740	40
Recurring \| Level 2 securities \| Foreign government and agency securities
Cost or Amortized Cost
Cash equivalents and marketable securities	181	5,130
Gross Unrealized Gains
Cash equivalents and marketable securities	0	1
Gross Unrealized Losses
Cash equivalents and marketable securities	0	0
Total Estimated Fair Value
Cash equivalents and marketable securities	181	5,131
Recurring \| Level 2 securities \| U.S. government and agency securities
Cost or Amortized Cost
Cash equivalents and marketable securities	4,316	7,410
Gross Unrealized Gains
Cash equivalents and marketable securities	9	30
Gross Unrealized Losses
Cash equivalents and marketable securities	(25)	(1)
Total Estimated Fair Value
Cash equivalents and marketable securities	4,300	7,439
Recurring \| Level 2 securities \| Corporate debt securities
Cost or Amortized Cost
Cash equivalents and marketable securities	35,810	29,684
Gross Unrealized Gains
Cash equivalents and marketable securities	75	305
Gross Unrealized Losses
Cash equivalents and marketable securities	(121)	(1)
Total Estimated Fair Value
Cash equivalents and marketable securities	35,764	29,988
Recurring \| Level 2 securities \| Asset-backed securities
Cost or Amortized Cost
Cash equivalents and marketable securities	6,763	3,206
Gross Unrealized Gains
Cash equivalents and marketable securities	7	32
Gross Unrealized Losses
Cash equivalents and marketable securities	(32)	(3)
Total Estimated Fair Value
Cash equivalents and marketable securities	6,738	3,235
Recurring \| Level 2 securities \| Other fixed income securities
Cost or Amortized Cost
Cash equivalents and marketable securities	688	701
Gross Unrealized Gains
Cash equivalents and marketable securities	2	9
Gross Unrealized Losses
Cash equivalents and marketable securities	(4)	0
Total Estimated Fair Value
Cash equivalents and marketable securities	$ 686	$ 710