Equity Method Investments (Summarized Financial Information For Equity Method Investees) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income statement data:
Revenues and other income	$ 179,952	$ 120,930	$ 69,032
Income from operations	21,469	4,300	(12,247)
Net income	16,050	11,001	(9,977)
Balance sheet data – December 31:
Current assets	35,242	30,496
Current liabilities	20,020	17,898
Equity Method Investment, Nonconsolidated Investee or Group of Investees
Income statement data:
Revenues and other income	5,069	4,343	3,013
Income from operations	1,907	1,389	599
Net income	1,740	1,230	$ 454
Balance sheet data – December 31:
Current assets	1,811	1,233
Noncurrent assets	20,324	18,071
Current liabilities	1,478	801
Noncurrent liabilities	$ 4,750	$ 5,141