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Variable Interest Entities (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2019
Assets |  |  |
Cash and cash equivalents |  | $ 2,982 | $ 2,137
Property, plant, and equipment, net |  | 28,848 | 28,890
Liabilities |  |  |
Current liabilities, including current portion of debt and finance lease obligations |  | 10,724 | 12,130
Debt and finance lease obligations, less current portion |  | 8,871 | 9,170
Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Assets |  |  |
Cash and cash equivalents |  | 235 | 97
Other current assets |  | 198 | 230
Property, plant, and equipment, net |  | 2,254 | 1,037
Liabilities |  |  |
Current liabilities, including current portion of debt and finance lease obligations |  | 182 | 366
Debt and finance lease obligations, less current portion |  | 1,024 | 32
Valero Energy Partners LP [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Assets |  |  |
Cash and cash equivalents | [1] | 152 |
Other current assets | [1] | 2 |
Property, plant, and equipment, net | [1] | 1,409 |
Liabilities |  |  |
Current liabilities, including current portion of debt and finance lease obligations | [1] | 27 |
Debt and finance lease obligations, less current portion | [1] | 990 |
Diamond Green Diesel Holdings LLC [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Assets |  |  |
Cash and cash equivalents |  | 65 | 74
Other current assets |  | 112 | 110
Property, plant, and equipment, net |  | 576 | 646
Liabilities |  |  |
Current liabilities, including current portion of debt and finance lease obligations |  | 28 | 40
Debt and finance lease obligations, less current portion |  | 0 | 1
Central Mexico Terminals [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Assets |  |  |
Cash and cash equivalents |  | 0 | 0
Other current assets |  | 20 | 26
Property, plant, and equipment, net |  | 156 | 284
Liabilities |  |  |
Current liabilities, including current portion of debt and finance lease obligations |  | 118 | 307
Debt and finance lease obligations, less current portion |  | 0 | 0
Other Variable Interest Entities [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Assets |  |  |
Cash and cash equivalents |  | 18 | 23
Other current assets |  | 64 | 94
Property, plant, and equipment, net |  | 113 | 107
Liabilities |  |  |
Current liabilities, including current portion of debt and finance lease obligations |  | 9 | 19
Debt and finance lease obligations, less current portion |  | $ 34 | $ 31
Limited Partner [Member] | Valero Energy Partners LP [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Variable Interest Entity (Textual) |  |  |
Ownership percentage (percent) |  | 66.20% |
Limited Partner [Member] | Valero Energy Partners LP [Member] | Variable Interest Entity, Not Primary Beneficiary [Member] |  |  |
Variable Interest Entity (Textual) |  |  |
Ownership percentage (percent) |  | 31.80% |
General Partner [Member] | Valero Energy Partners LP [Member] | Variable Interest Entity, Primary Beneficiary [Member] |  |  |
Variable Interest Entity (Textual) |  |  |
Ownership percentage (percent) |  | 2.00% |
[1] | Prior to the completion of the Merger Transaction with VLP on January 10, 2019 as discussed in Note 2, VLP was a publicly traded master limited partnership that we had determined was a VIE. VLP was formed by us to own, operate, develop, and acquire crude oil and refined petroleum products pipelines, terminals, and other transportation and logistics assets. As of December 31, 2018, we owned a 66.2 percent limited partner interest and a 2.0 percent general partner interest in VLP, and public unitholders owned a 31.8 percent limited partner interest. Upon completion of the Merger Transaction, VLP became our indirect wholly owned subsidiary and, as a result, was no longer a VIE.

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