Debt - Narrative (Details) $ in Thousands			1 Months Ended	3 Months Ended
	Apr. 02, 2025 USD ($)	Feb. 24, 2025 USD ($)	Jan. 31, 2024 USD ($)	Mar. 31, 2025 USD ($)	Mar. 31, 2024 USD ($)	Dec. 31, 2024 USD ($)	Apr. 30, 2020 USD ($)
Line of Credit Facility
Debt instrument, face amount				$ 8,443,162		$ 9,368,516
Loss on debt extinguishment				11,680	$ 3,449
Aggregate proceeds from capped call termination payment				$ 0	93,290
Call Option
Line of Credit Facility
Aggregate proceeds from capped call termination payment			$ 93,300
EQM's 6.500% notes due July 1, 2027 | Senior Notes
Line of Credit Facility
Interest rate, stated percentage (in percent)				6.50%		6.50%
Debt instrument, face amount				$ 393,791		$ 900,000
EQT's 3.90% notes due October 1, 2027 | Senior Notes
Line of Credit Facility
Interest rate, stated percentage (in percent)				3.90%		3.90%
Debt instrument, face amount				$ 936,158		$ 1,169,503
New EQT Notes
Line of Credit Facility
Debt instrument, face amount		$ 4,541,800
New EQT Notes | Conversion Period One
Line of Credit Facility
Conversion ratio		0.001
New EQT Notes | Conversion Period Two
Line of Credit Facility
Conversion ratio		0.950
New EQT Notes | Subsequent Event
Line of Credit Facility
Debt conversion, converted instrument, amount	$ 3,868,900
Previously Existing EQM Notes | Senior Notes
Line of Credit Facility
Loss on debt extinguishment				6,900
Previously Existing EQM Notes | Senior Notes | Subsequent Event
Line of Credit Facility
Debt conversion, original debt, amount	3,869,500
Cash consideration	3,900
Discount received on existing notes	$ 600
1.75% convertible notes due May 1, 2026 | Senior Notes
Line of Credit Facility
Interest rate, stated percentage (in percent)							1.75%
Debt instrument, face amount							$ 500,000
Revolving credit facility | EQT Fourth A& R Revolving Credit Facility
Line of Credit Facility
Line of credit facility, maximum borrowing capacity				3,500,000
Letters of credit outstanding under revolving credit facility (less than)				100		$ 1,000
Maximum amount of outstanding short-term loans at any time during the period				566,000	107,000
Average daily balance of short-term loans outstanding during the period				$ 208,000	$ 11,000
Weighted average interest rates (in percent)				5.90%	6.90%
Unused commitment fee paid to maintain credit facility (in percent)				0.20%	0.20%
Revolving credit facility | Eureka Revolving Credit Facility
Line of Credit Facility
Line of credit facility, maximum borrowing capacity				$ 400,000
Letters of credit outstanding under revolving credit facility (less than)				0
Maximum amount of outstanding short-term loans at any time during the period				321,000
Average daily balance of short-term loans outstanding during the period				$ 311,000
Weighted average interest rates (in percent)				7.20%
Unused commitment fee paid to maintain credit facility (in percent)				0.50%