Investments - Equity Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Increase (Decrease) In Equity Investments [Roll Forward]
Marketable securities, beginning balance	$ 627
Marketable securities, Purchases (Sales), Net	0
Marketable Securities, Sales	0
Marketable securities, Changes in Fair Value	(213)
Marketable Securities, Other Changes	(15)
Marketable securities, ending balance	399	$ 627
Nonmarketable securities, beginning balance	1,207
Nonmarketable Securities, Purchases (Sales), Net	88
Nonmarketable Securities, Sales	(7)
Nonmarketable securities, Changes in Fair Value	68
Non-marketable securities, Other	(25)
Nonmarketable securities, ending balance	1,331	1,207
Total equity investments, beginning balance	1,834
Total equity investments, Purchases (Sales), net	88
Total equity investments, Sales	(7)	(186)	$ 0
Total equity investments, Changes in Fair Value	(145)
Total equity investments, Other	(40)
Total equity investments, ending balance	$ 1,730	$ 1,834