Net Income Per Limited Partner Unit (Tables)

12 Months Ended

Dec. 31, 2018

Partners' Capital Notes [Abstract]

Schedule of Allocation of Net Income 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:

	2018		2017		2016
Net income	$	482.4	$	391.8	$	377.5
Less:
Net income attributable to the Parent	—		77.3		102.3
Net income attributable to noncontrolling interests	18.3		19.2		30.3
Net income attributable to the Partnership	464.1		295.3		244.9
Less:
General partner’s distribution declared	134.5		64.6		24.2
Limited partners’ distribution declared on common units	334.6		227.7		109.8
Limited partner’s distribution declared on subordinated units	—		—		69.2
Income (less than)/in excess of distributions	$	(5.0)	$	3.0	$	41.7

Schedule of Basic and Diluted Net Income Per Unit

	2018
	General Partner		Limited Partners’ Common Units		Total
	(in millions of dollars, except per unit data)
Distributions declared	$	134.5	$	334.6	$	469.1
Income less than distributions	(0.1)		(4.9)		(5.0)
Net income attributable to the Partnership	$	134.4	$	329.7	$	464.1
Weighted average units outstanding:
Basic and diluted			220.3
Net income per limited partner unit:
Basic and diluted			$	1.50

	2017
	General Partner		Limited Partners’ Common Units		Total
	(in millions of dollars, except per unit data)
Distributions declared	$	64.6	$	227.7	$	292.3
Income in excess of distributions	—		3.0		3.0
Net income attributable to the Partnership	$	64.6	$	230.7	$	295.3
Weighted average units outstanding:
Basic and diluted			180.4
Net income per limited partner unit:
Basic and diluted			$	1.28

	2016
	General Partner		Limited Partners’ Common Units		Limited Partner’s Subordinated Units		Total
	(in millions of dollars, except per unit data)
Distributions declared	$	24.2	$	109.8	$	69.2	$	203.2
Income in excess of distributions	0.8		24.6		16.3		41.7
Net income attributable to the Partnership	$	25.0	$	134.4	$	85.5	$	244.9
Weighted average units outstanding:
Basic and diluted			101.9		67.5
Net income per limited partner unit:
Basic and diluted			$	1.32	$	1.27