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Business Segments and Related Information (Tables)
 6 Months Ended
Jun. 30, 2022
Business Segments [Abstract]  
Measurement of Total Segment Gross Operating Margin
The following table presents our measurement of total segment gross operating margin for the periods presented.  The GAAP financial measure most directly comparable to total segment gross operating margin is operating income.

 
  
For the Three Months
Ended June 30,
    
For the Six Months
Ended June 30,
  
 
  
2022
    
2021
    
2022
    
2021
  
Operating income
  
$
1,764
    
$
1,492
    
$
3,430
    
$
3,187
  
Adjustments to reconcile operating income to total segment gross operating margin
   (addition or subtraction indicated by sign):
                                
Depreciation, amortization and accretion expense in operating costs and expenses (1)
    
531
      
500
      
1,045
      
995
  
Asset impairment charges in operating costs and expenses
    
5
      
18
      
19
      
84
  
Net losses attributable to asset sales and related matters in operating costs
   and expenses
    
–
      
–
      
2
      
11
  
General and administrative costs
    
62
      
52
      
124
      
108
  
Non-refundable payments received from shippers attributable to make-up rights (2)
    
39
      
22
      
73
      
41
  
Subsequent recognition of revenues attributable to make-up rights (3)
    
(17
)
    
(39
)
    
(45
)
    
(78
)
Total segment gross operating margin
  
$
2,384
    
$
2,045
    
$
4,648
    
$
4,348
  

(1)
Excludes amortization of major maintenance costs for reaction-based plants, which are a component of gross operating margin.
(2)
Since make-up rights entail a future performance obligation by the pipeline to the shipper, these receipts are recorded as deferred revenue for GAAP purposes; however, these receipts are included in gross operating margin in the period of receipt since they are nonrefundable to the shipper.
(3)
As deferred revenues attributable to make-up rights are subsequently recognized as revenue under GAAP, gross operating margin must be adjusted to remove such amounts to prevent duplication since the associated non-refundable payments were previously included in gross operating margin.
Information by Business Segments
Gross operating margin by segment is calculated by subtracting segment operating costs and expenses from segment revenues, with both segment totals reflecting the adjustments noted in the preceding table, as applicable, and before the elimination of intercompany transactions.  The following table presents gross operating margin by segment for the periods indicated:

   
For the Three Months
Ended June 30,
    
For the Six Months
Ended June 30,
  
 
  
2022
    
2021
    
2022
    
2021
  
Gross operating margin by segment:
                        
NGL Pipelines & Services
  
$
1,327
    
$
1,098
    
$
2,552
    
$
2,184
  
Crude Oil Pipelines & Services
    
407
      
419
      
822
      
819
  
Natural Gas Pipelines & Services
    
229
      
202
      
449
      
737
  
Petrochemical & Refined Products Services
    
421
      
326
      
825
      
608
  
Total segment gross operating margin
  
$
2,384
    
$
2,045
    
$
4,648
    
$
4,348
  
Information by business segment, together with reconciliations to amounts presented on, or included in, our Unaudited Condensed Statements of Consolidated Operations, is presented in the following table:

 
  
Reportable Business Segments
              
 
  
NGL
Pipelines
& Services
    
Crude Oil
Pipelines
& Services
    
Natural Gas
Pipelines
& Services
    
Petrochemical
& Refined
Products
Services
    
Adjustments
and
Eliminations
    
Consolidated
Total
  
Revenues from third parties:
                                    
Three months ended June 30, 2022
  
$
6,374
    
$
5,380
    
$
1,653
    
$
2,634
    
$
–
    
$
16,041
  
Three months ended June 30, 2021
    
3,584
      
2,501
      
706
      
2,650
      
–
      
9,441
  
Six months ended June 30, 2022
    
12,126
      
9,443
      
2,797
      
4,667
      
–
      
29,033
  
Six months ended June 30, 2021
    
7,165
      
4,658
      
2,290
      
4,469
      
–
      
18,582
  
Revenues from related parties:
                                                
Three months ended June 30, 2022
    
6
      
5
      
8
      
–
      
–
      
19
  
Three months ended June 30, 2021
    
3
      
3
      
3
      
–
      
–
      
9
  
Six months ended June 30, 2022
    
8
      
14
      
13
      
–
      
–
      
35
  
Six months ended June 30, 2021
    
6
      
11
      
6
      
–
      
–
      
23
  
Intersegment and intrasegment revenues:
                                                
Three months ended June 30, 2022
    
19,098
      
11,957
      
218
      
5,290
      
(36,563
)
    
–
  
Three months ended June 30, 2021
    
10,298
      
7,876
      
149
      
6,596
      
(24,919
)
    
–
  
Six months ended June 30, 2022
    
37,413
      
21,871
      
421
      
8,512
      
(68,217
)
    
–
  
Six months ended June 30, 2021
    
23,387
      
15,296
      
295
      
12,830
      
(51,808
)
    
–
  
Total revenues:
                                                
Three months ended June 30, 2022
    
25,478
      
17,342
      
1,879
      
7,924
      
(36,563
)
    
16,060
  
Three months ended June 30, 2021
    
13,885
      
10,380
      
858
      
9,246
      
(24,919
)
    
9,450
  
Six months ended June 30, 2022
    
49,547
      
31,328
      
3,231
      
13,179
      
(68,217
)
    
29,068
  
Six months ended June 30, 2021
    
30,558
      
19,965
      
2,591
      
17,299
      
(51,808
)
    
18,605
  
Equity in income loss of unconsolidated affiliates:
                                                
Three months ended June 30, 2022
    
36
      
70
      
–
      
1
      
–
      
107
  
Three months ended June 30, 2021
    
29
      
130
      
2
      
–
      
–
      
161
  
Six months ended June 30, 2022
    
70
      
151
      
2
      
1
      
–
      
224
  
Six months ended June 30, 2021
    
57
      
249
      
3
      
1
      
–
      
310
  
Information by business segment, together with reconciliations to our Unaudited Condensed Consolidated Balance Sheet totals, is presented in the following table:

 
  
Reportable Business Segments
              
 
  
NGL
Pipelines
& Services
    
Crude Oil
Pipelines
& Services
    
Natural Gas
Pipelines
& Services
    
Petrochemical
& Refined
Products
Services
    
Adjustments
and
Eliminations
    
Consolidated
Total
  
Property, plant and equipment, net:
(see Note 4)
                                    
At June 30, 2022
  
$
17,452
    
$
6,862
    
$
9,916
    
$
7,686
    
$
2,213
    
$
44,129
  
At December 31, 2021
    
17,202
      
6,974
      
8,560
      
7,736
      
1,616
      
42,088
  
Investments in unconsolidated affiliates:
(see Note 5)
                                                
At June 30, 2022
    
650
      
1,690
      
31
      
3
      
–
      
2,374
  
At December 31, 2021
    
656
      
1,738
      
31
      
3
      
–
      
2,428
  
Intangible assets, net: (see Note 6)
                                                
At June 30, 2022
    
884
      
1,819
      
1,231
      
122
      
–
      
4,056
  
At December 31, 2021
    
317
      
1,860
      
849
      
125
      
–
      
3,151
  
Goodwill: (see Note 6)
                                                
At June 30, 2022
    
2,811
      
1,841
      
–
      
956
      
–
      
5,608
  
At December 31, 2021
    
2,652
      
1,841
      
–
      
956
      
–
      
5,449
  
Segment assets:
                                                
At June 30, 2022
    
21,797
      
12,212
      
11,178
      
8,767
      
2,213
      
56,167
  
At December 31, 2021
    
20,827
      
12,413
      
9,440
      
8,820
      
1,616
      
53,116
  
Consolidated Revenues and Expenses
The following table presents additional information regarding our consolidated revenues and costs and expenses for the periods indicated:

 
  
For the Three Months
Ended June 30,
    
For the Six Months
Ended June 30,
  
 
  
2022
    
2021
    
2022
    
2021
  
Consolidated revenues:
                        
NGL Pipelines & Services
  
$
6,380
    
$
3,587
    
$
12,134
    
$
7,171
  
Crude Oil Pipelines & Services
    
5,385
      
2,504
      
9,457
      
4,669
  
Natural Gas Pipelines & Services
    
1,661
      
709
      
2,810
      
2,296
  
Petrochemical & Refined Products Services
    
2,634
      
2,650
      
4,667
      
4,469
  
Total consolidated revenues
  
$
16,060
    
$
9,450
    
$
29,068
    
$
18,605
  
 
                                
Consolidated costs and expenses
                                
Operating costs and expenses:
                                
Cost of sales
  
$
12,908
    
$
6,840
    
$
23,006
    
$
13,103
  
Other operating costs and expenses (1)
    
884
      
702
      
1,641
      
1,417
  
Depreciation, amortization and accretion
    
544
      
507
      
1,070
      
1,005
  
Asset impairment charges
    
5
      
18
      
19
      
84
  
Net losses attributable to asset sales and related matters
    
–
      
–
      
2
      
11
  
General and administrative costs
    
62
      
52
      
124
      
108
  
Total consolidated costs and expenses
  
$
14,403
    
$
8,119
    
$
25,862
    
$
15,728
  

(1)
Represents the cost of operating our plants, pipelines and other fixed assets excluding: depreciation, amortization and accretion charges; asset impairment charges; and net losses attributable to asset sales and related matters.