The intrinsic value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units, as calculated by applying the disclosed pricing methodology.

No definition available.

Employee Incentive Plans - Restricted and Performance Awards (Details) - USD ($) $ / shares in Units, $ in Millions	1 Months Ended							12 Months Ended
	Jan. 31, 2021	Jul. 31, 2020	Mar. 31, 2020	Jan. 31, 2020	Oct. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jul. 31, 2021
Restricted incentive units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Unrecognized compensation cost related to non-vested restricted incentive units								$ 13.0
Unrecognized compensation costs, weighted average period for recognition								1 year 7 months 6 days
Vesting period								3 years
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested, beginning of period (in shares)	2,351,241							2,351,241
Granted (in shares)								1,388,139
Vested (in shares)								(164,553)
Non-vested, end of period (in shares)								3,574,827	2,351,241
Aggregate intrinsic value, end of period (in millions)								$ 24.6
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested, beginning of period (in dollars per share)	$ 8.82							$ 8.82
Granted (in dollars per share)								4.70
Vested (in dollars per share)								26.73
Non-vested, end of period (in dollars per share)								$ 6.40	$ 8.82
Fair value of units vested								$ 4.4	$ 5.5	$ 7.9
Aggregate intrinsic value of units vested								0.6	$ 0.9	3.4
Unrecognized compensation cost related to non-vested restricted incentive units								$ 10.4
Unrecognized compensation costs, weighted average period for recognition								1 year 7 months 6 days
Vesting period								3 years
ENLC \| Restricted incentive units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Non-vested, beginning of period (in shares)	5,350,086							5,350,086
Granted (in shares)								3,937,301
Vested (in shares)								(1,268,801)
Forfeited (in shares)								(511,115)
Non-vested, end of period (in shares)								7,507,471	5,350,086
Aggregate intrinsic value, end of period (in millions)								$ 51.7
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested, beginning of period (in dollars per share)	$ 8.45							$ 8.45
Granted (in dollars per share)								3.86
Vested (in dollars per share)								12.85
Forfeited (in dollars per share)								6.10
Non-vested, end of period (in dollars per share)								$ 5.46	$ 8.45
Fair value of units vested								$ 16.3	$ 31.5	22.8
Units withheld for payroll taxes (in shares)								382,343
Aggregate intrinsic value of units vested								$ 5.6	$ 12.1	$ 17.3
ENLC \| Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Units withheld for payroll taxes (in shares)								63,901
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Grant-date fair value (in dollars per share)	4.70		$ 1.13	$ 7.69	$ 7.29	$ 9.92	$ 13.10				$ 2.33
Beginning TSR price (in dollars per share)	$ 3.71	$ 2.52	$ 1.25	$ 6.13	$ 7.42	$ 9.84	$ 10.92
Risk-free interest rate	0.17%	0.17%	0.42%	1.62%	1.44%	1.72%	2.42%
Volatility factor	71.00%	67.00%	51.00%	37.00%	35.00%	33.50%	33.86%
ENLC \| Performance Shares \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Percent of units vesting								0.00%
ENLC \| Performance Shares \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Percent of units vesting								200.00%