Net Income Per Limited Partner Unit (Tables)

6 Months Ended

Jun. 30, 2019

Partners' Capital Notes [Abstract]

Schedule of Allocation of Net Income Attributable to the Partnership to Arrive at Net Income Per Limited Partner Unit

The following tables show the allocation of net income attributable to the Partnership to arrive at net income per limited partner unit:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Net income	$	119	$	115	$	256	$	180
Less:
Net income attributable to noncontrolling interests	4		4		9		5
Net income attributable to the Partnership	115		111		247		175
Less:
General partner’s distribution declared (1)	31		32		57		60
Limited partners’ distribution declared on common units	100		81		193		159
Distributions in excess of income	$	(16)	$	(2)	$	(3)	$	(44)

⁽¹⁾ For the three and six months ended June 30, 2019, this includes the impact of waived distributions to the holders of IDR’s. See Note 3—Related Party Transactions for additional information.

Schedule of Basic and Diluted Net Income Per Unit

	Three Months Ended June 30, 2019
	General Partner		Limited Partners’ Common Units		Total
	(in millions of dollars, except per unit data)
Distributions declared (1)	$	31	$	100	$	131
Distributions in excess of income	(1)		(15)		(16)
Net income attributable to the Partnership	$	30	$	85	$	115
Weighted average units outstanding:
Basic and diluted			226.4
Net income per limited partner unit:
Basic and diluted			$	0.38

⁽¹⁾ This includes the impact of waived distributions to the holders of IDR’s. See Note 3—Related Party Transactions for additional  information.

	Six Months Ended June 30, 2019
	General Partner		Limited Partners’ Common Units		Total
	(in millions of dollars, except per unit data)
Distributions declared (1)	$	57	$	193	$	250
Distributions in excess of income	—		(3)		(3)
Net income attributable to the Partnership	$	57	$	190	$	247
Weighted average units outstanding:
Basic and diluted			225.1
Net income per limited partner unit:
Basic and diluted			$	0.84

⁽¹⁾ This includes the impact of waived distributions to the holders of IDR’s. See Note 3—Related Party Transactions for additional  information.

	Three Months Ended June 30, 2018
	General Partner		Limited Partners’ Common Units		Total
	(in millions of dollars, except per unit data)
Distributions declared	$	32	$	81	$	113
Distributions in excess of income	—		(2)		(2)
Net income attributable to the Partnership	$	32	$	79	$	111
Weighted average units outstanding:
Basic and diluted			223.8
Net income per limited partner unit:
Basic and diluted			$	0.35

	Six Months Ended June 30, 2018
	General Partner		Limited Partners’ Common Units		Total
	(in millions of dollars, except per unit data)
Distributions declared	$	60	$	159	$	219
Distributions in excess of income	(1)		(43)		(44)
Net income attributable to the Partnership	$	59	$	116	$	175
Weighted average units outstanding:
Basic and diluted			216.7
Net income per limited partner unit:
Basic and diluted			$	0.54