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Revenues (Tables)

12 Months Ended

Dec. 31, 2020

	For the Year Ended December 31,
	2020		2019		2018
NGL Pipelines & Services:
Sales of NGLs and related products	$	8,970.7	$	10,934.3	$	12,920.9
Segment midstream services:
Natural gas processing and fractionation		757.3		1,069.9		1,341.0
Transportation		1,036.8		1,054.3		1,007.0
Storage and terminals		412.4		412.2		380.0
Total segment midstream services		2,206.5		2,536.4		2,728.0
Total NGL Pipelines & Services		11,177.2		13,470.7		15,648.9
Crude Oil Pipelines & Services:
Sales of crude oil		5,410.8		9,007.8		10,001.2
Segment midstream services:
Transportation		804.9		801.8		676.5
Storage and terminals		473.3		477.7		364.9
Total segment midstream services		1,278.2		1,279.5		1,041.4
Total Crude Oil Pipelines & Services		6,689.0		10,287.3		11,042.6
Natural Gas Pipelines & Services:
Sales of natural gas		1,530.5		2,075.4		2,411.7
Segment midstream services:
Transportation		1,022.6		1,094.0		1,042.7
Total segment midstream services		1,022.6		1,094.0		1,042.7
Total Natural Gas Pipelines & Services		2,553.1		3,169.4		3,454.4
Petrochemical & Refined Products Services:
Sales of petrochemicals and refined products		5,942.6		4,985.2		5,535.4
Segment midstream services:
Fractionation and isomerization		187.7		166.6		188.3
Transportation, including marine logistics		482.9		539.4		481.8
Storage and terminals		167.2		170.6		182.8
Total segment midstream services		837.8		876.6		852.9
Total Petrochemical & Refined Products Services		6,780.4		5,861.8		6,388.3
Total consolidated revenues	$	27,199.7	$	32,789.2	$	36,534.2

The following table provides information regarding our contract assets and contract liabilities at the dates indicated:

		December 31,
Contract Asset	Location	2020		2019
Unbilled revenue (current amount)	Prepaid and other current assets	$	18.8	$	17.6
Total		$	18.8	$	17.6

		December 31,
Contract Liability	Location	2020		2019
Deferred revenue (current amount)	Other current liabilities	$	145.3	$	117.9
Deferred revenue (noncurrent)	Other long-term liabilities		198.2		197.0
Total		$	343.5	$	314.9

The following table presents significant changes in our unbilled revenue and deferred revenue balances during the years indicated:

	Unbilled Revenue			Deferred Revenue
Balance at January 1, 2018 (upon adoption of ASC 606)	$	–		$	224.7
Amount included in opening balance transferred to other accounts during period (1)		–			(90.8	)
Amount recorded during period (2)		321.7			432.5
Amounts recorded during period transferred to other accounts (1)		(310.6	)		(274.8	)
Amount recorded in connection with business combination		2.2			–
Other changes		–			(0.4	)
Balance at December 31, 2018	$	13.3		$	291.2
Amount included in opening balance transferred to other accounts during period (1)		(13.3	)		(126.4	)
Amount recorded during period (2)		340.0			539.8
Amounts recorded during period transferred to other accounts (1)		(322.4	)		(384.8	)
Other changes		–			(4.9	)
Balance at December 31, 2019	$	17.6		$	314.9
Amount included in opening balance transferred to other accounts during period (1)		(17.6	)		(114.5	)
Amount recorded during period (2)		323.0			661.2
Amounts recorded during period transferred to other accounts (1)		(304.2	)		(496.7	)
Other changes		–			(21.4	)
Balance at December 31, 2020	$	18.8		$	343.5

(1)	Unbilled revenues are transferred to accounts receivable once we have an unconditional right to consideration from the customer. Deferred revenues are recognized as revenue upon satisfaction of our performance obligation to the customer.
(2)	Unbilled revenue represents revenue that has been recognized upon satisfaction of a performance obligation, but cannot be contractually invoiced (or billed) to the customer at the balance sheet date until a future period. Deferred revenue is recorded when payment is received from a customer prior to our satisfaction of the associated performance obligation.