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Business Segments and Related Information (Tables)
 9 Months Ended
Sep. 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 September 30,
    
For the Nine Months
Ended September 30,
  
 
  
2022
    
2021
    
2022
    
2021
  
Operating income
  
$
1,712
    
$
1,513
    
$
5,142
    
$
4,700
  
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)
    
524
      
503
      
1,569
      
1,498
  
Asset impairment charges in operating costs and expenses
    
29
      
29
      
48
      
113
  
Net losses (gains) attributable to asset sales and related matters in operating costs
   and expenses
    
1
      
(3
)
    
3
      
8
  
General and administrative costs
    
55
      
47
      
179
      
155
  
Non-refundable payments received from shippers attributable to make-up rights (2)
    
39
      
26
      
112
      
67
  
Subsequent recognition of revenues attributable to make-up rights (3)
    
(18
)
    
(35
)
    
(63
)
    
(113
)
Total segment gross operating margin
  
$
2,342
    
$
2,080
    
$
6,990
    
$
6,428
  

(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 September 30,
    
For the Nine Months
Ended September 30,
  
 
  
2022
    
2021
    
2022
    
2021
  
Gross operating margin by segment:
                        
NGL Pipelines & Services
  
$
1,296
    
$
1,023
    
$
3,848
    
$
3,207
  
Crude Oil Pipelines & Services
    
415
      
423
      
1,237
      
1,242
  
Natural Gas Pipelines & Services
    
278
      
223
      
727
      
960
  
Petrochemical & Refined Products Services
    
353
      
411
      
1,178
      
1,019
  
Total segment gross operating margin
  
$
2,342
    
$
2,080
    
$
6,990
    
$
6,428
  
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 September 30, 2022
  
$
6,232
    
$
4,720
    
$
1,875
    
$
2,621
    
$
–
    
$
15,448
  
Three months ended September 30, 2021
    
3,815
      
3,210
      
975
      
2,801
      
–
      
10,801
  
Nine months ended September 30, 2022
    
18,358
      
14,163
      
4,672
      
7,288
      
–
      
44,481
  
Nine months ended September 30, 2021
    
10,980
      
7,868
      
3,265
      
7,270
      
–
      
29,383
  
Revenues from related parties:
                                                
Three months ended September 30, 2022
    
5
      
4
      
11
      
–
      
–
      
20
  
Three months ended September 30, 2021
    
1
      
25
      
5
      
–
      
–
      
31
  
Nine months ended September 30, 2022
    
13
      
18
      
24
      
–
      
–
      
55
  
Nine months ended September 30, 2021
    
7
      
36
      
11
      
–
      
–
      
54
  
Intersegment and intrasegment revenues:
                                                
Three months ended September 30, 2022
    
14,666
      
13,456
      
262
      
5,934
      
(34,318
)
    
–
  
Three months ended September 30, 2021
    
13,753
      
6,612
      
146
      
6,150
      
(26,661
)
    
–
  
Nine months ended September 30, 2022
    
52,079
      
35,327
      
683
      
14,446
      
(102,535
)
    
–
  
Nine months ended September 30, 2021
    
37,140
      
21,908
      
441
      
18,980
      
(78,469
)
    
–
  
Total revenues:
                                                
Three months ended September 30, 2022
    
20,903
      
18,180
      
2,148
      
8,555
      
(34,318
)
    
15,468
  
Three months ended September 30, 2021
    
17,569
      
9,847
      
1,126
      
8,951
      
(26,661
)
    
10,832
  
Nine months ended September 30, 2022
    
70,450
      
49,508
      
5,379
      
21,734
      
(102,535
)
    
44,536
  
Nine months ended September 30, 2021
    
48,127
      
29,812
      
3,717
      
26,250
      
(78,469
)
    
29,437
  
Equity in income loss of unconsolidated affiliates:
                                                
Three months ended September 30, 2022
    
39
      
70
      
2
      
–
      
–
      
111
  
Three months ended September 30, 2021
    
31
      
105
      
1
      
–
      
–
      
137
  
Nine months ended September 30, 2022
    
109
      
221
      
4
      
1
      
–
      
335
  
Nine months ended September 30, 2021
    
88
      
354
      
4
      
1
      
–
      
447
  
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 September 30, 2022
  
$
17,409
    
$
6,809
    
$
9,737
    
$
7,742
    
$
2,470
    
$
44,167
  
At December 31, 2021
    
17,202
      
6,974
      
8,560
      
7,736
      
1,616
      
42,088
  
Investments in unconsolidated affiliates:
(see Note 5)
                                                
At September 30, 2022
    
645
      
1,676
      
32
      
3
      
–
      
2,356
  
At December 31, 2021
    
656
      
1,738
      
31
      
3
      
–
      
2,428
  
Intangible assets, net: (see Note 6)
                                                
At September 30, 2022
    
874
      
1,798
      
1,218
      
120
      
–
      
4,010
  
At December 31, 2021
    
317
      
1,860
      
849
      
125
      
–
      
3,151
  
Goodwill: (see Note 6)
                                                
At September 30, 2022
    
2,811
      
1,841
      
–
      
956
      
–
      
5,608
  
At December 31, 2021
    
2,652
      
1,841
      
–
      
956
      
–
      
5,449
  
Segment assets:
                                                
At September 30, 2022
    
21,739
      
12,124
      
10,987
      
8,821
      
2,470
      
56,141
  
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 September 30,
    
For the Nine Months
Ended September 30,
  
 
  
2022
    
2021
    
2022
    
2021
  
Consolidated revenues:
                        
NGL Pipelines & Services
  
$
6,237
    
$
3,816
    
$
18,371
    
$
10,987
  
Crude Oil Pipelines & Services
    
4,724
      
3,235
      
14,181
      
7,904
  
Natural Gas Pipelines & Services
    
1,886
      
980
      
4,696
      
3,276
  
Petrochemical & Refined Products Services
    
2,621
      
2,801
      
7,288
      
7,270
  
Total consolidated revenues
  
$
15,468
    
$
10,832
    
$
44,536
    
$
29,437
  
 
                                
Consolidated costs and expenses
                                
Operating costs and expenses:
                                
Cost of sales
  
$
12,319
    
$
8,113
    
$
35,325
    
$
21,216
  
Other operating costs and expenses (1)
    
926
      
758
      
2,567
      
2,175
  
Depreciation, amortization and accretion
    
537
      
512
      
1,607
      
1,517
  
Asset impairment charges
    
29
      
29
      
48
      
113
  
Net losses (gains) attributable to asset sales and related matters
    
1
      
(3
)
    
3
      
8
  
General and administrative costs
    
55
      
47
      
179
      
155
  
Total consolidated costs and expenses
  
$
13,867
    
$
9,456
    
$
39,729
    
$
25,184
  

(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.