Related Party Transactions (Details) - USD ($)			1 Months Ended		3 Months Ended												7 Months Ended	12 Months Ended
		Jul. 18, 2018	Jan. 31, 2016	Jun. 30, 2014	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Jul. 18, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Related Party Transaction [Line Items]
Cost of sales	[1]																	$ 2,388,500,000	$ 4,392,500,000	$ 6,008,000,000.0
Accounts payable to related party					$ 1,000,000.0				$ 1,100,000									1,000,000.0	1,100,000
Revenues					1,064,300,000	$ 928,500,000	$ 744,900,000	$ 1,156,100,000	1,155,700,000	$ 1,408,000,000.0	$ 1,710,000,000.0	$ 1,779,200,000	$ 2,058,300,000	$ 2,114,300,000	$ 1,764,700,000	$ 1,761,700,000		3,893,800,000	6,052,900,000	7,699,000,000.0
GIP | Net Devon Investment
Related Party Transaction [Line Items]
Consideration		$ 3,125,000,000
Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Cost of sales																		8,700,000	21,700,000	44,100,000
Accounts receivable balance					0				0									0	0
GIP
Related Party Transaction [Line Items]
Selling, general and administrative expenses, related party																		200,000
Tax Sharing Agreement
Related Party Transaction [Line Items]
Related party transactions																				400,000
Cedar Cove Joint Venture
Related Party Transaction [Line Items]
Revenue from related parties																				500,000
Accounts receivable balance					0				0									0	0
Accounts payable to related party					$ 1,000,000.0				$ 1,100,000									$ 1,000,000.0	$ 1,100,000
ENLC
Related Party Transaction [Line Items]
Reimbursement revenue																				2,500,000
Net Devon Investment
Related Party Transaction [Line Items]
Revenue from related parties																				66,600,000
Net Devon Investment | EnLink Midstream Partners, LP
Related Party Transaction [Line Items]
Revenues																	$ 321,300,000
Net Devon Investment | VEX Pipeline
Related Party Transaction [Line Items]
Revenue from related parties																				3,500,000
Term of contract				5 years
Devon Energy Production Company | Tall Oak
Related Party Transaction [Line Items]
Revenue from related parties																				77,600,000
Minimum volume commitment			4 years
Term of contract			15 years
Acacia
Related Party Transaction [Line Items]
Revenue from related parties																				$ 4,900,000
Customer Concentration Risk | Sales Revenue, Net | Net Devon Investment
Related Party Transaction [Line Items]
Concentration risk																				5.40%
Oil and Gas, Purchased
Related Party Transaction [Line Items]
Revenue from related parties																	$ 50,800,000

[1] Includes related party cost of sales of $8.7 million, $21.7 million, and $114.1 million for the years ended December 31, 2020, 2019, and 2018, respectively, and excludes all operating expenses as well as depreciation and amortization related to our operating segments of $631.3 million, $608.6 million, and $568.6 million for the years ended December 31, 2020, 2019, and 2018, respectively.