Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

Summarized unaudited quarterly financial data is presented below (in millions, except per unit data):

	First Quarter		Second Quarter		Third Quarter		Fourth Quarter			Total
2018
Revenues	$	1,761.7	$	1,764.7	$	2,114.3	$	2,058.3		$	7,699.0
Impairments	$	—	$	—	$	24.6	$	341.2		$	365.8
Operating income (loss)	$	105.3	$	148.8	$	89.8	$	(190.1	)	$	153.8
Net income (loss) attributable to non-controlling interest	$	44.7	$	74.2	$	37.3	$	(175.8	)	$	(19.6	)
Net income (loss) attributable to ENLC	$	12.4	$	28.0	$	7.7	$	(61.3	)	$	(13.2	)
Net income (loss) attributable to ENLC per unit:
Basic common unit	$	0.07	$	0.15	$	0.04	$	(0.34	)	$	(0.07	)
Diluted common unit	$	0.07	$	0.15	$	0.04	$	(0.34	)	$	(0.07	)

2017
Revenues	$	1,321.9		$	1,263.6	$	1,397.9	$	1,756.2	$	5,739.6
Impairments	$	7.0		$	—	$	1.8	$	8.3	$	17.1
Operating income	$	56.5		$	68.9	$	72.1	$	96.9	$	294.4
Net income attributable to non-controlling interest	$	11.2		$	21.2	$	17.9	$	56.9	$	107.2
Net income (loss) attributable to ENLC	$	(1.9	)	$	5.9	$	6.2	$	202.6	$	212.8
Net income (loss) attributable to ENLC per unit:
Basic common unit	$	(0.01	)	$	0.03	$	0.03	$	1.12	$	1.18
Diluted common unit	$	(0.01	)	$	0.03	$	0.03	$	1.11	$	1.17

2016
Revenues	$	889.7		$	1,033.2	$	1,104.6	$	1,224.9		$	4,252.4
Impairments	$	873.3		$	—	$	—	$	—		$	873.3
Operating income (loss)	$	(824.8	)	$	45.2	$	65.9	$	39.2		$	(674.5	)
Net income (loss) attributable to non-controlling interest	$	(413.7	)	$	0.4	$	10.4	$	(25.3	)	$	(428.2	)
Net income (loss) attributable to ENLC	$	(457.6	)	$	0.8	$	0.7	$	(3.9	)	$	(460.0	)
Net income (loss) attributable to ENLC per unit:
Basic common unit	$	(2.56	)	$	0.01	$	—	$	(0.02	)	$	(2.56	)
Diluted common unit	$	(2.56	)	$	0.01	$	—	$	(0.02	)	$	(2.56	)