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Investments in Unconsolidated Affiliates
3 Months Ended
Mar. 31, 2024
Investments in Unconsolidated Affiliates [Abstract]  
Investments in Unconsolidated Affiliates
Note 5.  Investments in Unconsolidated Affiliates

The following table presents our investments in unconsolidated affiliates by business segment at the dates indicated.  We account for these investments using the equity method.

   
March 31,
2024
   
December 31,
2023
 
NGL Pipelines & Services
 
$
610
   
$
612
 
Crude Oil Pipelines & Services
   
1,674
     
1,681
 
Natural Gas Pipelines & Services
   
34
     
33
 
Petrochemical & Refined Products Services
   
3
     
4
 
Total
 
$
2,321
   
$
2,330
 

The following table presents our equity in income of unconsolidated affiliates by business segment for the periods indicated:

 
 
For the Three Months
Ended March 31,
 
 
 
2024
   
2023
 
NGL Pipelines & Services
 
$
31
   
$
39
 
Crude Oil Pipelines & Services
   
69
     
64
 
Natural Gas Pipelines & Services
   
2
     
1
 
Petrochemical & Refined Products Services
   
     
 
Total
 
$
102
   
$
104