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Investments in Unconsolidated Affiliates | 3 Months Ended
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Mar. 31, 2022
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, 2022 |  |  | December 31, 2021 |
NGL Pipelines & Services |  | $ | 654 |  |  | $ | 656 |
Crude Oil Pipelines & Services |  |  | 1,737 |  |  |  | 1,738 |
Natural Gas Pipelines & Services |  |  | 32 |  |  |  | 31 |
Petrochemical & Refined Products Services |  |  | 3 |  |  |  | 3 |
Total |  | $ | 2,426 |  |  | $ | 2,428 |
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, |
|  | 2022 |  |  | 2021 |
NGL Pipelines & Services |  | $ | 34 |  |  | $ | 28 |
Crude Oil Pipelines & Services |  |  | 81 |  |  |  | 119 |
Natural Gas Pipelines & Services |  |  | 2 |  |  |  | 1 |
Petrochemical & Refined Products Services |  |  | – |  |  |  | 1 |
Total |  | $ | 117 |  |  | $ | 149 |

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- Definition The entire disclosure for equity method investments and joint ventures. Equity method investments are investments that give the investor the ability to exercise significant influence over the operating and financial policies of an investee. Joint ventures are entities owned and operated by a small group of businesses as a separate and specific business or project for the mutual benefit of the members of the group. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -URI http://asc.fasb.org/topic&trid=2196965 + Details
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