Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Earnings Per Share Reconciliation [Abstract]
Net income attributable to EQT Corporation – Basic income available to shareholders	$ 81,255	$ 683,670	$ 1,233,177	$ 58,983
Add back: Interest expense on Convertible Notes, net of tax	2,042	921	6,117	0
Diluted income available to shareholders	$ 83,297	$ 684,591	$ 1,239,294	$ 58,983
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Weighted average common stock outstanding - basic (in shares)	383,359	369,987	368,936	371,308
Weighted average common stock outstanding - diluted (in shares)	416,190	403,889	401,859	377,028
Income per share of common stock attributable to EQT Corporation:
Basic (in dollars per share)	$ 0.21	$ 1.85	$ 3.34	$ 0.16
Diluted (in dollars per share)	$ 0.20	$ 1.69	$ 3.08	$ 0.16
Convertible notes
Income per share of common stock attributable to EQT Corporation:
Shares excluded from potentially dilutive securities (in shares)				31,600
Add back: interest expense on convertible notes, net of tax				$ 6,100
Options, restricted stock, performance awards, and stock appreciation rights
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Potentially dilutive securities included in the calculation of diluted earnings (in shares)	4,398	5,880	4,606	5,720
Convertible notes
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Potentially dilutive securities included in the calculation of diluted earnings (in shares)	28,433	28,022	28,317	0