STATEMENTS OF CONSOLIDATED EQUITY - USD ($) $ in Thousands	Total	Common Stock	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests in Consolidated Subsidiaries	EQT GP Holding, LP	EQT GP Holding, LP Noncontrolling Interests in Consolidated Subsidiaries	EQT Midstream Partners, LP	EQT Midstream Partners, LP Noncontrolling Interests in Consolidated Subsidiaries
Beginning Balance (in shares) at Dec. 31, 2014		151,596,000
Beginning Balance at Dec. 31, 2014	$ 6,373,063	$ 1,466,192	$ 2,917,129	$ 199,494	$ 1,790,248
Increase (Decrease) in Stockholders' Equity
Net income	321,886		85,171		236,715
Net change in cash flow hedges:
Natural gas, net of tax	(152,359)			(152,359)
Interest rate, net of tax	144			144
Pension and other post-retirement benefits liability adjustment, net of tax	(901)			(901)
Dividends ($0.12 per share)	(18,310)		(18,310)
Stock-based compensation plans, net (in shares)		996,000
Stock-based compensation plans, net	78,434	$ 77,378			1,056
Distributions to noncontrolling interests	(121,759)				(121,759)
Issuance of common units						$ 673,964	$ 673,964	$ 1,182,002	$ 1,182,002
Changes in ownership of consolidated subsidiaries	(304,747)	$ 507,228			(811,975)
Repurchase and retirement of common stock (in shares)		(38,000)
Repurchase and retirement of common stock	(3,375)	$ (1,597)	(1,778)
Ending Balance (in shares) at Dec. 31, 2015		152,554,000
Ending Balance at Dec. 31, 2015	$ 8,028,042	$ 2,049,201	2,982,212	46,378	2,950,251
Net change in cash flow hedges:
Common stock, authorized (in shares)	320,000,000
Preferred stock, authorized shares	3,000,000
Preferred stock, shares issued (in shares)	0
Net income	$ (131,063)		(452,983)		321,920
Natural gas, net of tax	(55,155)			(55,155)
Interest rate, net of tax	144			144
Pension and other post-retirement benefits liability adjustment, net of tax	10,675			10,675
Dividends ($0.12 per share)	(20,156)		(20,156)
Stock-based compensation plans, net (in shares)		724,000
Stock-based compensation plans, net	42,943	$ 42,782			161
Distributions to noncontrolling interests	(189,981)				(189,981)
Issuance of common shares of EQT Corporation (in shares)		19,550,000
Issuance of common shares of EQT Corporation	1,225,999	$ 1,225,999
Issuance of common units	217,102				217,102
Elimination of deferred taxes	5,921	5,921
Changes in ownership of consolidated subsidiaries	(15,194)	$ 25,293			(40,487)
Repurchase and retirement of common stock (in shares)		(1,000)
Repurchase and retirement of common stock	(30)	$ (30)
Ending Balance (in shares) at Dec. 31, 2016		172,827,000
Ending Balance at Dec. 31, 2016	$ 9,119,247	$ 3,349,166	2,509,073	2,042	3,258,966
Net change in cash flow hedges:
Common stock, authorized (in shares)	320,000,000
Preferred stock, authorized shares	3,000,000
Preferred stock, shares issued (in shares)	0
Net income	$ 1,858,142		1,508,529		349,613
Natural gas, net of tax	(4,982)			(4,982)
Interest rate, net of tax	144			144
Pension and other post-retirement benefits liability adjustment, net of tax	338			338
Dividends ($0.12 per share)	(20,827)		(20,827)
Stock-based compensation plans, net (in shares)		580,000
Stock-based compensation plans, net	26,626	$ 26,436			190
Distributions to noncontrolling interests	(236,123)				(236,123)
Rice Merger, net of withholdings (in shares)		90,914,000
Rice Merger, net of withholdings	7,665,340	$ 5,949,729			1,715,611
Contribution from noncontrolling interest, net of distribution	6,738				6,738
Repurchase and retirement of common stock (in shares)		(1,000)
Repurchase and retirement of common stock	(30)	$ (30)
Ending Balance (in shares) at Dec. 31, 2017		264,320,000
Ending Balance at Dec. 31, 2017	$ 18,414,613	$ 9,325,301	$ 3,996,775	$ (2,458)	$ 5,094,995
Net change in cash flow hedges:
Common stock, authorized (in shares)	320,000,000
Preferred stock, authorized shares	3,000,000
Preferred stock, shares issued (in shares)	0