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Business Segments and Related Information (Tables)
 6 Months Ended
Jun. 30, 2023
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,
  
 
  
2023
    
2022
    
2023
    
2022
  
Operating income
  
$
1,579
    
$
1,764
    
$
3,313
    
$
3,430
  
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)
    
545
      
531
      
1,078
      
1,045
  
Asset impairment charges in operating costs and expenses
    
3
      
5
      
16
      
19
  
Net losses (gains) attributable to asset sales and related matters in operating costs
   and expenses
    
(2
)
    
–
      
(4
)
    
2
  
General and administrative costs
    
56
      
62
      
113
      
124
  
Non-refundable payments received from shippers attributable to make-up rights (2)
    
(3
)
    
39
      
24
      
73
  
Subsequent recognition of revenues attributable to make-up rights (3)
    
(25
)
    
(17
)
    
(45
)
    
(45
)
Total segment gross operating margin
  
$
2,153
    
$
2,384
    
$
4,495
    
$
4,648
  
Information by Business Segments 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,
  
 
  
2023
    
2022
    
2023
    
2022
  
Gross operating margin by segment:
                        
NGL Pipelines & Services
  
$
1,110
    
$
1,327
    
$
2,322
    
$
2,552
  
Crude Oil Pipelines & Services
    
422
      
407
      
819
      
822
  
Natural Gas Pipelines & Services
    
238
      
229
      
552
      
449
  
Petrochemical & Refined Products Services
    
383
      
421
      
802
      
825
  
Total segment gross operating margin
  
$
2,153
    
$
2,384
    
$
4,495
    
$
4,648
  

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, 2023
  
$
3,687
    
$
4,296
    
$
772
    
$
1,883
    
$
–
    
$
10,638
  
Three months ended June 30, 2022
    
6,374
      
5,380
      
1,653
      
2,634
      
–
      
16,041
  
Six months ended June 30, 2023
    
8,613
      
8,471
      
1,983
      
4,002
      
–
      
23,069
  
Six months ended June 30, 2022
    
12,126
      
9,443
      
2,797
      
4,667
      
–
      
29,033
  
Revenues from related parties:
                                                
Three months ended June 30, 2023
    
2
      
8
      
3
      
–
      
–
      
13
  
Three months ended June 30, 2022
    
6
      
5
      
8
      
–
      
–
      
19
  
Six months ended June 30, 2023
    
5
      
14
      
7
      
–
      
–
      
26
  
Six months ended June 30, 2022
    
8
      
14
      
13
      
–
      
–
      
35
  
Intersegment and intrasegment revenues:
                                                
Three months ended June 30, 2023
    
9,284
      
12,212
      
117
      
4,095
      
(25,708
)
    
–
  
Three months ended June 30, 2022
    
19,098
      
11,957
      
218
      
5,290
      
(36,563
)
    
–
  
Six months ended June 30, 2023
    
21,980
      
24,796
      
253
      
8,801
      
(55,830
)
    
–
  
Six months ended June 30, 2022
    
37,413
      
21,871
      
421
      
8,512
      
(68,217
)
    
–
  
Total revenues:
                                                
Three months ended June 30, 2023
    
12,973
      
16,516
      
892
      
5,978
      
(25,708
)
    
10,651
  
Three months ended June 30, 2022
    
25,478
      
17,342
      
1,879
      
7,924
      
(36,563
)
    
16,060
  
Six months ended June 30, 2023
    
30,598
      
33,281
      
2,243
      
12,803
      
(55,830
)
    
23,095
  
Six months ended June 30, 2022
    
49,547
      
31,328
      
3,231
      
13,179
      
(68,217
)
    
29,068
  
Equity in income of unconsolidated affiliates:
                                                
Three months ended June 30, 2023
    
30
      
88
      
2
      
1
      
–
      
121
  
Three months ended June 30, 2022
    
36
      
70
      
–
      
1
      
–
      
107
  
Six months ended June 30, 2023
    
69
      
152
      
3
      
1
      
–
      
225
  
Six months ended June 30, 2022
    
70
      
151
      
2
      
1
      
–
      
224
  
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, 2023
  
$
17,042
    
$
6,710
    
$
9,723
    
$
7,721
    
$
3,858
    
$
45,054
  
At December 31, 2022
    
17,283
      
6,760
      
9,721
      
7,770
      
2,867
      
44,401
  
Investments in unconsolidated affiliates:
(see Note 5)
                                                
At June 30, 2023
    
622
      
1,675
      
32
      
3
      
–
      
2,332
  
At December 31, 2022
    
640
      
1,677
      
32
      
3
      
–
      
2,352
  
Intangible assets, net: (see Note 6)
                                                
At June 30, 2023
    
848
      
1,728
      
1,181
      
114
      
–
      
3,871
  
At December 31, 2022
    
865
      
1,776
      
1,206
      
118
      
–
      
3,965
  
Goodwill: (see Note 6)
                                                
At June 30, 2023
    
2,811
      
1,841
      
–
      
956
      
–
      
5,608
  
At December 31, 2022
    
2,811
      
1,841
      
–
      
956
      
–
      
5,608
  
Segment assets:
                                                
At June 30, 2023
    
21,323
      
11,954
      
10,936
      
8,794
      
3,858
      
56,865
  
At December 31, 2022
    
21,599
      
12,054
      
10,959
      
8,847
      
2,867
      
56,326
  
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,
  
 
  
2023
    
2022
    
2023
    
2022
  
Consolidated revenues:
                        
NGL Pipelines & Services
  
$
3,689
    
$
6,380
    
$
8,618
    
$
12,134
  
Crude Oil Pipelines & Services
    
4,304
      
5,385
      
8,485
      
9,457
  
Natural Gas Pipelines & Services
    
775
      
1,661
      
1,990
      
2,810
  
Petrochemical & Refined Products Services
    
1,883
      
2,634
      
4,002
      
4,667
  
Total consolidated revenues
  
$
10,651
    
$
16,060
    
$
23,095
    
$
29,068
  
 
                                
Consolidated costs and expenses
                                
Operating costs and expenses:
                                
Cost of sales
  
$
7,679
    
$
12,908
    
$
17,010
    
$
23,006
  
Other operating costs and expenses (1)
    
895
      
884
      
1,763
      
1,641
  
Depreciation, amortization and accretion
    
562
      
544
      
1,109
      
1,070
  
Asset impairment charges
    
3
      
5
      
16
      
19
  
Net losses (gains) attributable to asset sales and related matters
    
(2
)
    
–
      
(4
)
    
2
  
General and administrative costs
    
56
      
62
      
113
      
124
  
Total consolidated costs and expenses
  
$
9,193
    
$
14,403
    
$
20,007
    
$
25,862
  

(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 (gains) attributable to asset sales and related matters.