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Revenues (Tables)
12 Months Ended
Dec. 31, 2021
Revenues [Abstract]  
Revenues by Business Segment and Revenue Type
 
 
For the Year Ended December 31,
 
 
 
2021
   
2020
   
2019
 
NGL Pipelines & Services:
                 
Sales of NGLs and related products
 
$
13,716.5
   
$
8,970.7
   
$
10,934.3
 
Segment midstream services:
                       
Natural gas processing and fractionation
   
1,036.2
     
757.3
     
1,069.9
 
Transportation
   
975.8
     
1,036.8
     
1,054.3
 
Storage and terminals
   
574.1
     
412.4
     
412.2
 
Total segment midstream services
   
2,586.1
     
2,206.5
     
2,536.4
 
Total NGL Pipelines & Services
   
16,302.6
     
11,177.2
     
13,470.7
 
Crude Oil Pipelines & Services:
                       
Sales of crude oil
   
9,519.0
     
5,410.8
     
9,007.8
 
Segment midstream services:
                       
Transportation
   
929.4
     
804.9
     
801.8
 
Storage and terminals
   
453.8
     
473.3
     
477.7
 
Total segment midstream services
   
1,383.2
     
1,278.2
     
1,279.5
 
Total Crude Oil Pipelines & Services
   
10,902.2
     
6,689.0
     
10,287.3
 
Natural Gas Pipelines & Services:
                       
Sales of natural gas
   
3,412.7
     
1,530.5
     
2,075.4
 
Segment midstream services:
                       
Transportation
   
986.9
     
1,022.6
     
1,094.0
 
Total segment midstream services
   
986.9
     
1,022.6
     
1,094.0
 
Total Natural Gas Pipelines & Services
   
4,399.6
     
2,553.1
     
3,169.4
 
Petrochemical & Refined Products Services:
                       
Sales of petrochemicals and refined products
   
8,195.7
     
5,942.6
     
4,985.2
 
Segment midstream services:
                       
Fractionation and isomerization
   
275.2
     
187.7
     
166.6
 
Transportation, including marine logistics
   
484.8
     
482.9
     
539.4
 
Storage and terminals
   
246.8
     
167.2
     
170.6
 
Total segment midstream services
   
1,006.8
     
837.8
     
876.6
 
Total Petrochemical & Refined Products Services
   
9,202.5
     
6,780.4
     
5,861.8
 
Total consolidated revenues
 
$
40,806.9
   
$
27,199.7
   
$
32,789.2
 
Unbilled Revenue and Deferred Revenue
The following table provides information regarding our contract assets and contract liabilities at the dates indicated:

   
December 31,
 
Contract Asset
Location
 
2021
   
2020
 
Unbilled revenue (current amount)
Prepaid and other current assets
 
$
15.0
   
$
18.8
 
Total
   
$
15.0
   
$
18.8
 

   
December 31,
 
Contract Liability
Location
 
2021
   
2020
 
Deferred revenue (current amount)
Other current liabilities
 
$
196.1
   
$
145.3
 
Deferred revenue (noncurrent)
Other long-term liabilities
   
249.5
     
198.2
 
Total
   
$
445.6
   
$
343.5
 

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

 
Unbilled
Revenue
   
Deferred
Revenue
 
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
 
Amount included in opening balance transferred to other accounts during period (1)
   
(18.8
)
   
(147.6
)
Amount recorded during period (2)
   
276.9
     
954.3
 
Amounts recorded during period transferred to other accounts (1)
   
(261.9
)
   
(700.4
)
Other changes
   
     
(4.2
)
Balance at December 31, 2021
 
$
15.0
   
$
445.6
 

(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.
Remaining Performance Obligations

Period
 
Fixed
Consideration
 
One Year Ended December 31, 2022
 
$
3,727.5
 
One Year Ended December 31, 2023
   
3,122.3
 
One Year Ended December 31, 2024
   
2,882.3
 
One Year Ended December 31, 2025
   
2,542.0
 
One Year Ended December 31, 2026
   
2,387.8
 
Thereafter
   
9,449.8
 
Total
 
$
24,111.7