Segment Information - Schedule of Selected Financial Information by Reportable Segment (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Selected Information [Line Items]
Operating Revenues and Other	$ 6,044	$ 3,983
Operating Income (Loss)	2,572	546
Other Income, Net	65	(1)
Interest Expense, Net	(42)	(48)
Income Before Income Taxes	2,595	497
Operating Segments
Selected Information [Line Items]
Operating Revenues and Other	6,044	3,983
Operating Income (Loss)	2,572	546
Segment Reconciling Items
Selected Information [Line Items]
Other Income, Net	65	(1)
Interest Expense, Net	(42)	(48)
United States | Operating Segments
Selected Information [Line Items]
Operating Revenues and Other	5,941	3,914
Operating Income (Loss)	2,512	519
Trinidad | Operating Segments
Selected Information [Line Items]
Operating Revenues and Other	103	69
Operating Income (Loss)	66	34
Other International | Operating Segments
Selected Information [Line Items]
Operating Revenues and Other	0	0
Operating Income (Loss)	$ (6)	$ (7)