Accounting Policies and Supplemental Disclosures - Other Income (Expense), Net (Details) - USD ($) shares in Millions, $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2023	Dec. 31, 2022	Mar. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Marketable equity securities valuation gains (losses)	$ (480)	$ (8,245)
Equity warrant valuation gains (losses)	59	(312)
Upward adjustments relating to equity investments in private companies	16	7
Foreign currency gains (losses)	70	14
Other, net	(108)	(34)
Total other income (expense), net	(443)	(8,570)
Schedule of Investments [Line Items]
Marketable equity securities valuation gains (losses)	(480)	(8,245)
Loss from operations	4,774	3,669
Net loss	3,172	(3,844)	$ 4,294		$ 21,413
Equity method investment, nonconsolidated investee
Accounting Policies [Abstract]
Marketable equity securities valuation gains (losses)	(467)	(7,600)
Schedule of Investments [Line Items]
Marketable equity securities valuation gains (losses)	$ (467)	$ (7,600)
Equity investment, shares held (in shares)	158		158
Equity investment, ownership percentage	17.00%		17.00%
Equity investment, voting interest	16.00%		16.00%
Equity investment, fair value	$ 2,500		$ 2,500	$ 2,900
Equity investment, discount due to lack of marketability						$ 800
Revenues				1,658		55
Gross profit				(3,123)		(465)
Loss from operations				(6,856)		(4,220)
Net loss				$ (6,752)		$ (4,688)