Equitrans Midstream Merger (Details) $ in Millions	Mar. 10, 2024 USD ($)
Equitrans Midstream
Business Combination, Separately Recognized Transactions [Line Items]
Merger agreement, termination fee amounts	$ 191
EQT Corporation | Minimum
Business Combination, Separately Recognized Transactions [Line Items]
Merger agreement, termination fee amounts	176
EQT Corporation | Maximum
Business Combination, Separately Recognized Transactions [Line Items]
Merger agreement, termination fee amounts	$ 545
Equitrans Midstream Merger
Business Combination, Separately Recognized Transactions [Line Items]
Number of shares issuable for each existing share converted (in shares)	0.3504
Equitrans Midstream Merger | Equitrans Midstream Merger
Business Combination, Separately Recognized Transactions [Line Items]
Ownership percentage by parent	74.00%
Percentage of equity interest	26.00%