Debt - Narrative (Details)										1 Months Ended			4 Months Ended	5 Months Ended	9 Months Ended	12 Months Ended
	Dec. 30, 2024 USD ($)	Dec. 27, 2024 USD ($)	Jul. 22, 2024 USD ($) extension	Jan. 22, 2024 USD ($)	Jan. 19, 2024 USD ($)	Jan. 17, 2024 USD ($)	Jan. 12, 2024 USD ($) shares	Aug. 21, 2023 USD ($)	Nov. 09, 2022 USD ($)	Jan. 31, 2024 USD ($) $ / shares shares	Jan. 17, 2024	Apr. 30, 2020 USD ($) $ / shares	Dec. 31, 2023 USD ($)	Dec. 31, 2024 USD ($)	Aug. 20, 2023	Dec. 31, 2024 USD ($)	Dec. 30, 2024	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 10, 2024 USD ($)	Nov. 25, 2024 USD ($)	Nov. 22, 2024 USD ($)
Debt Instrument [Line Items]
Proceeds from revolving credit facility borrowings																$ 6,887,000,000		$ 1,007,000,000	$ 10,242,000,000
Debt instrument, face amount													$ 5,836,058,000	$ 9,368,516,000		9,368,516,000		5,836,058,000
Repayments of long-term debt																4,313,867,000		1,015,836,000	917,039,000
Outstanding borrowings													5,795,113,000	9,324,177,000		9,324,177,000		5,795,113,000
Payments of debt issuance costs																18,854,000		5,336,000	26,506,000
Issuance of common stock for convertible notes settlement																285,608,000		122,830,000	63,000
Settlement of capped call transaction																93,290,000		0	0
Capped call
Debt Instrument [Line Items]
Settlement of capped call transaction				$ 93,300,000
Senior notes
Debt Instrument [Line Items]
Outstanding borrowings													$ 4,500,000,000	8,900,000,000		8,900,000,000		4,500,000,000
Aggregate purchase price														4,427,532,000		4,427,532,000
Aggregate maturities in 2025														0		0
Aggregate maturities in 2026														508,000,000		508,000,000
Aggregate maturities in 2027														1,170,000,000		1,170,000,000
Aggregate maturities in 2028														500,000,000		500,000,000
Aggregate maturities in 2029														318,000,000		318,000,000
Aggregate maturities thereafter														1,860,000,000		1,860,000,000
Conversion strike price (in dollars per share) | $ / shares												$ 15.00
Capped price (in dollars per share) | $ / shares												$ 18.75
Senior notes | Capped call
Debt Instrument [Line Items]
Capped call transaction												$ 32,500,000
Senior Unsecured Bridge Term Loan | Unsecured Debt | EQM
Debt Instrument [Line Items]
Proceeds from revolving credit facility borrowings		$ 2,230,000,000
Debt instrument, face amount																						$ 2,300,000,000
EQM Revolving Credit Facility | Note payable | EQM
Debt Instrument [Line Items]
Repayments of long-term debt			$ 705,000,000
Payments of interest and fees			4,500,000
Term Loan Facility due June 30, 2026 | Loans Payable
Debt Instrument [Line Items]
Weighted average interest rates													6.90%				6.80%
Unused commitment fee paid to maintain credit facility															0.20%
Debt instrument, face amount													$ 1,250,000,000	0		0		1,250,000,000
Repayments of long-term debt	$ 500,000,000				$ 750,000,000
Proceeds from issuance of debt								$ 1,250,000,000	$ 1,250,000,000
Net of issuance costs								$ 1,242,900,000
Outstanding borrowings													1,244,265,000	0		0		1,244,265,000
Aggregate purchase price														1,256,151,000		1,256,151,000
EQT's 5.750% notes due February 1, 2034 | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount					$ 750,000,000								0	$ 750,000,000		$ 750,000,000		0
Interest rate (percent)					5.75%									5.75%		5.75%
Outstanding borrowings													0	$ 742,796,000		$ 742,796,000		0
Net proceeds from issuance of the senior notes					$ 742,000,000
EQT's note payable to EQM
Debt Instrument [Line Items]
Aggregate maturities in 2025														0		0
Aggregate maturities in 2026														0		0
Aggregate maturities in 2027														1,400,000,000		1,400,000,000
Aggregate maturities in 2028														119,000,000		119,000,000
Aggregate maturities in 2029														1,343,000,000		1,343,000,000
Aggregate maturities thereafter														1,680,000,000		1,680,000,000
EQT's note payable to EQM | Note payable
Debt Instrument [Line Items]
Debt instrument, face amount													88,483,000	0		0		88,483,000
Outstanding borrowings													88,483,000	0		0		88,483,000
EQT's note payable to EQM | Senior notes
Debt Instrument [Line Items]
Aggregate purchase price																				$ 1,300,000,000	$ 1,275,000,000
EQM's 6.500% notes due July 15, 2048 | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount													0	$ 80,233,000		$ 80,233,000		0
Interest rate (percent)														6.50%		6.50%
Outstanding borrowings													0	$ 81,338,000		$ 81,338,000		0
Aggregate purchase price														510,774,000		510,774,000
EQM's 5.500% notes due July 15, 2028 | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount													0	$ 118,683,000		$ 118,683,000		0
Interest rate (percent)														5.50%		5.50%
Outstanding borrowings													0	$ 118,204,000		$ 118,204,000		0
Aggregate purchase price														765,293,000		765,293,000
EQM's 4.50% notes due January 15, 2029 | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount													0	$ 742,923,000		$ 742,923,000		0
Interest rate (percent)														4.50%		4.50%
Outstanding borrowings													0	$ 711,754,000		$ 711,754,000		0
Aggregate purchase price														57,541,000		57,541,000
EQM's 7.500% notes due June 1, 2030 | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount													0	$ 500,000,000		$ 500,000,000		0
Interest rate (percent)														7.50%		7.50%
Outstanding borrowings													0	$ 535,671,000		$ 535,671,000		0
EQM Midstream 6.000% notes due July 1, 2025 | Senior notes
Debt Instrument [Line Items]
Interest rate (percent)														6.00%		6.00%
Aggregate purchase price														$ 413,217,000		$ 413,217,000
EQM Midstream 4.125% notes due December 1, 2026 | Senior notes
Debt Instrument [Line Items]
Interest rate (percent)														4.125%		4.125%
Aggregate purchase price														$ 501,662,000		$ 501,662,000
1.75% convertible notes due May 1, 2026 | Senior notes
Debt Instrument [Line Items]
Debt instrument, face amount												$ 500,000,000
Interest rate (percent)												1.75%
Effective interest rate (percent)						2.40%					2.40%
Conversion ratio							0.0690364
Debt principal repaid						$ 600,000
January 2024 | Senior notes
Debt Instrument [Line Items]
Redemption price, percentage											100.00%
Debt conversion, converted instrument, amount							$ 289,600,000
Shares issued (in shares) | shares							19,992,482
Issuance of common stock for convertible notes settlement							$ 285,600,000
Convertible Debt Settled January 2024, Including Exercise Notices Received In December 2023 | Senior notes
Debt Instrument [Line Items]
Debt conversion, converted instrument, amount										$ 290,200,000
Shares issued (in shares) | shares										20,036,639
Average conversion price (in dollars per share) | $ / shares										$ 38.03
Revolving Credit Facility | PNC Bank, National Association
Debt Instrument [Line Items]
Financial commitments held under revolving credit facility (percent)																10.00%
Revolving Credit Facility | EQT Fourth A& R Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity			$ 3,500,000,000											$ 3,500,000,000		$ 3,500,000,000
Number of extensions | extension			2
Extension term			1 year
Commitment amount			$ 1,000,000,000
Financial commitments under facility percentage														65.00%		65.00%
Letters of credit outstanding													$ 15,000,000	$ 1,000,000		$ 1,000,000		15,000,000
Maximum amount of outstanding borrowings																2,357,000,000		269,000,000	1,300,000,000
Average daily balance of loans outstanding																$ 936,000,000		$ 40,000,000	$ 466,000,000
Weighted average interest rates																6.60%		6.90%	2.80%
Unused commitment fee paid to maintain credit facility																0.20%		0.20%	0.20%
Revolving Credit Facility | EQT Fourth A& R Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Credit spread adjustment (percent)			0.10%
Revolving Credit Facility | EQT Fourth A& R Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			0.125%
Revolving Credit Facility | EQT Fourth A& R Revolving Credit Facility | Minimum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			1.125%
Revolving Credit Facility | EQT Fourth A& R Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			1.00%
Revolving Credit Facility | EQT Fourth A& R Revolving Credit Facility | Maximum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate (percent)			2.00%
Revolving Credit Facility | Eureka Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity														400,000,000		$ 400,000,000
Letters of credit outstanding														0		$ 0
Maximum amount of outstanding borrowings														330,000,000
Average daily balance of loans outstanding														$ 328,000,000
Weighted average interest rates														7.80%
Unused commitment fee paid to maintain credit facility														0.50%
Revolving Credit Facility | Eureka Revolving Credit Facility | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Credit spread adjustment (percent)														0.10%
Revolving Credit Facility | Eureka Revolving Credit Facility | Minimum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)														1.00%
Revolving Credit Facility | Eureka Revolving Credit Facility | Minimum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate (percent)														2.00%
Revolving Credit Facility | Eureka Revolving Credit Facility | Maximum | Base Rate
Debt Instrument [Line Items]
Basis spread on variable rate (percent)														2.25%
Revolving Credit Facility | Eureka Revolving Credit Facility | Maximum | Secured Overnight Financing Rate (SOFR)
Debt Instrument [Line Items]
Basis spread on variable rate (percent)														3.25%