Debt - Narrative (Details)			1 Months Ended	3 Months Ended
	Feb. 11, 2022	Apr. 23, 2020 $ / shares	Apr. 30, 2020 USD ($) d Day $ / shares	Mar. 31, 2022 USD ($) $ / shares	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Line of Credit Facility
Redemption price, percentage			100.00%
Convertible note, measurement period trading days | Day			5
Convertible notes, measurement period consecutive trading days | d			5
Strike price (in dollars per share) | $ / shares			$ 15.00
Capped price (in dollars per share) | $ / shares			$ 18.75
Payment of debt premium charges			$ 32,500,000
3.00% Notes Due October 1, 2022 | Senior Notes
Line of Credit Facility
Redemption amount				$ 568,800,000
Interest rate, stated percentage				3.00%
Repayments of debt				$ 581,500,000
Redemption premium				5,500,000
Interest Payable				7,200,000
1.75% Senior Notes Due 2026 | Senior Notes
Line of Credit Facility
Interest rate, stated percentage			1.75%
Principal			$ 500,000,000	$ 499,983,000		$ 499,991,000
Convertible notes, trading days | d			20
Convertible notes, consecutive trading days | d			30
Redemption price, percentage			130.00%
Minimum trigger price as percentage			98.00%
Convertible notes, conversion ratio	67.0535		66.6667
Initial conversion price (in dollars per share) | $ / shares			$ 15.00
Conversion premium, percent		20.00%
Convertible closing price (in dollars per share) | $ / shares		$ 12.50
Closing stock price (in dollars per share) | $ / shares				$ 34.41
If-converted value				$ 651,000,000
Credit Facility | EQT 2.5 Billion Facility
Line of Credit Facility
Line of credit facility, maximum borrowing capacity				2,500,000,000
Letters of credit outstanding under revolving credit facility				425,000,000		$ 440,000,000
Maximum amount of outstanding short-term loans at any time during the period				615,000,000	$ 890,000,000
Average daily balance of short-term loans outstanding during the period				$ 306,000,000	$ 525,000,000
Weighted average interest rates of average daily balance of short-term loans				2.00%	2.10%