Financial Instruments - Schedule of Assets Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	$ 31,482	$ 36,671
Marketable securities:	39,727
Marketable equity securities	5,992	1,226
Total marketable securities	45,719	33,926
Restricted cash equivalents	2,539	1,193
Other assets	106	101
Total	79,846	71,891
U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	21,483	14,889
U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	767	3,053
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	17,477	14,758
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	27,928	36,165
U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	1,623
Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	328	369
Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	1,603	114
U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:		23
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	29,551	36,188
Marketable equity securities	5,992	1,226
Total marketable securities	28,242	19,168
Restricted cash equivalents	2,539	1,193
Other assets	0	0
Total	60,332	56,549
Quoted Prices in Active Markets for Identical Assets (Level 1) \| U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	21,483	14,889
Quoted Prices in Active Markets for Identical Assets (Level 1) \| U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	767	3,053
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	27,928	36,165
Quoted Prices in Active Markets for Identical Assets (Level 1) \| U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	1,623
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) \| U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:		23
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	1,931	483
Marketable equity securities	0	0
Total marketable securities	17,477	14,758
Restricted cash equivalents	0	0
Other assets	0	0
Total	19,408	15,241
Significant Other Observable Inputs (Level 2) \| U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	0	0
Significant Other Observable Inputs (Level 2) \| U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	0	0
Significant Other Observable Inputs (Level 2) \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	17,477	14,758
Significant Other Observable Inputs (Level 2) \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0	0
Significant Other Observable Inputs (Level 2) \| U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0
Significant Other Observable Inputs (Level 2) \| Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	328	369
Significant Other Observable Inputs (Level 2) \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	1,603	114
Significant Other Observable Inputs (Level 2) \| U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:		0
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0	0
Marketable equity securities	0	0
Total marketable securities	0	0
Restricted cash equivalents	0	0
Other assets	106	101
Total	106	101
Significant Unobservable Inputs (Level 3) \| U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	0	0
Significant Unobservable Inputs (Level 3) \| U.S. government agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	0	0
Significant Unobservable Inputs (Level 3) \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Marketable securities:	0	0
Significant Unobservable Inputs (Level 3) \| Money market funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0	0
Significant Unobservable Inputs (Level 3) \| U.S. government securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0
Significant Unobservable Inputs (Level 3) \| Time deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	0	0
Significant Unobservable Inputs (Level 3) \| Corporate debt securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:	$ 0	0
Significant Unobservable Inputs (Level 3) \| U.S. government and agency securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Cash equivalents:		$ 0

Restricted Cash And Cash Equivalents, Fair Value Disclosure

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Fair value portion of asset recognized for present right to economic benefit.

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Fair value portion 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. Also includes 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.

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Amount excluding accrued interest, 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 marketable security, classified as current.

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