Fair Value of Financial Instruments - Schedule of Cash, Cash Equivalents and Marketable Securities (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Marketable Securities [Line Items]
Adjusted Cost	$ 30,724	$ 29,098
Gross Unrealized Gains	2	3
Gross Unrealized Losses	(6)	(7)
Fair Value	30,720	29,094
Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	14,635	16,398
Short-Term Investments
Marketable Securities [Line Items]
Fair Value	16,085	12,696
Cash
Marketable Securities [Line Items]
Adjusted Cost	14,227	15,903
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	14,227	15,903
Cash \| Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	14,227	15,903
Cash \| Short-Term Investments
Marketable Securities [Line Items]
Fair Value	0	0
Certificates of deposit and time deposits
Marketable Securities [Line Items]
Adjusted Cost	8,488	6,995
Gross Unrealized Gains	0	1
Gross Unrealized Losses	0	0
Fair Value	8,488	6,996
Certificates of deposit and time deposits \| Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	0	0
Certificates of deposit and time deposits \| Short-Term Investments
Marketable Securities [Line Items]
Fair Value	8,488	6,996
Commercial paper
Marketable Securities [Line Items]
Adjusted Cost	4,311	470
Gross Unrealized Gains	2	0
Gross Unrealized Losses	(2)	0
Fair Value	4,311	470
Commercial paper \| Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	0	109
Commercial paper \| Short-Term Investments
Marketable Securities [Line Items]
Fair Value	4,311	361
U.S. government securities
Marketable Securities [Line Items]
Adjusted Cost	3,314	5,136
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(2)	(1)
Fair Value	3,312	5,136
U.S. government securities \| Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	398	277
U.S. government securities \| Short-Term Investments
Marketable Securities [Line Items]
Fair Value	2,914	4,859
Corporate debt securities
Marketable Securities [Line Items]
Adjusted Cost	374	485
Gross Unrealized Gains	0	1
Gross Unrealized Losses	(2)	(6)
Fair Value	372	480
Corporate debt securities \| Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	0	0
Corporate debt securities \| Short-Term Investments
Marketable Securities [Line Items]
Fair Value	372	480
Money market funds
Marketable Securities [Line Items]
Adjusted Cost	10	109
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	10	109
Money market funds \| Cash and Cash Equivalents
Marketable Securities [Line Items]
Fair Value	10	109
Money market funds \| Short-Term Investments
Marketable Securities [Line Items]
Fair Value	$ 0	$ 0

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).

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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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).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 944
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1))
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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-URI https://asc.fasb.org//1943274/2147481800/320-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
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