Description of Business, Accounting Policies, and Supplemental Disclosures - Other Income (Expense), Net (Details) - USD ($) shares in Millions, $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Marketable equity securities valuation gains (losses)		$ 984	$ (13,870)	$ 11,526
Equity warrant valuation gains (losses)		26	(2,132)	1,315
Upward adjustments relating to equity investments in private companies		40	76	1,866
Foreign currency gains (losses)		65	(340)	(55)
Other, net		(177)	(540)	(19)
Total other income (expense), net		938	(16,806)	14,633
Schedule of Equity Method Investments [Line Items]
Marketable equity securities valuation gains (losses)		984	(13,870)	11,526
Equity investment, discount due to lack of marketability				800
Loss from operations		36,852	12,248	24,879
Net income (loss)		30,425	(2,722)	33,364
Total current assets		172,351	146,791
Total assets		527,854	462,675	420,549
Current liabilities		164,917	155,393
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Accounting Policies [Abstract]
Marketable equity securities valuation gains (losses)		797	(12,700)
Schedule of Equity Method Investments [Line Items]
Marketable equity securities valuation gains (losses)		$ 797	(12,700)
Equity investment, shares held (in shares)		158
Equity investment, ownership interest		16.00%
Equity investment, voting interest		15.00%
Revenue	$ 3,119		1,658	55
Gross profit	(1,424)		(3,123)	(465)
Loss from operations	(4,158)		(6,856)	(4,220)
Net income (loss)	(3,911)		(6,752)	$ (4,688)
Total current assets	12,086		13,130
Total assets	16,456		17,876
Current liabilities	2,624		2,424
Total liabilities	$ 5,904		4,077
Equity investment, fair value		$ 3,700	$ 2,900