Supplemental Information on Natural Gas and Oil Exploration, Development and Production Activities (Unaudited) - Changes in Discounted Future Net Cash Flows (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revisions of previous estimates
Changes in prices and production costs	$ 14,326,997	$ 11,600,850	$ (4,868,371)
Revisions in quantities	109,129	577,737	(345,073)
Changes in future development and abandonment costs	(524,847)	(53,818)	107,899
Net change in income taxes	(2,625,699)	(2,248,161)	797,816
Accretion of discount	1,486,783	298,077	756,083
Additions to proved reserves from extensions, discoveries and improved recovery	2,842,173	1,423,510	280,441
Natural gas, NGLs and oil sales, net of production costs	3,550,632	1,934,254	402,450
Actual development costs incurred during the period	471,877	399,681	384,530
Sales of reserves in place	0	0	(394,125)
Timing and other	(475,724)	(424,718)	(99,001)
Net change for the year	12,060,057	9,638,904	(3,782,251)
Beginning of year	12,485,226	2,846,322	6,628,573
End of year	$ 24,545,283	$ 12,485,226	$ 2,846,322