Supplemental Financial Statement Information (Schedule of Other Income (Expense), Net) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Balance Sheet Components Disclosure [Abstract]
Interest income	$ 389	$ 433	$ 734	$ 1,019
Interest expense	(76)	(13)	(152)	(34)
Foreign currency exchange losses, net	(51)	(92)	62	(173)
Gain (loss) on debt securities, net	111	387	25	399
Gain (loss) on equity securities, net	2,772	1,455	7,609	641
Performance fees	(523)	(75)	(1,188)	(69)
Income (loss) and impairment from equity method investments, net	92	(54)	97	20
Other	(90)	(147)	283	(129)
Other income (expense), net	2,624	1,894	7,470	1,674
Interest costs capitalized	$ 45	$ 57	$ 92	$ 109