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Commitments and Contingencies (Tables) | 12 Months Ended
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Dec. 31, 2024
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Future Non-Cancelable Commitments | We have commitments (some of which are leases) related to real property, equipment and operating facilities. We also incur costs associated with leased land, rights-of-way, permits and regulatory fees. Future noncancelable commitments related to these items at December 31, 2024 are summarized below (in millions):
| 2025 |  | 2026 |  | 2027 |  | 2028 |  | 2029 |  | Thereafter |  | Total
Leases (1) | $ | 95 |  |  | $ | 72 |  |  | $ | 70 |  |  | $ | 66 |  |  | $ | 49 |  |  | $ | 367 |  |  | $ | 719 |
Other commitments (2) | 515 |  |  | 266 |  |  | 241 |  |  | 128 |  |  | 130 |  |  | 369 |  |  | 1,649 |
Total | $ | 610 |  |  | $ | 338 |  |  | $ | 311 |  |  | $ | 194 |  |  | $ | 179 |  |  | $ | 736 |  |  | $ | 2,368 |
(1)Includes both operating and finance leases as defined by FASB guidance. Leases are primarily for (i) railcars, (ii) office space, (iii) land, (iv) vehicles, (v) storage tanks and (vi) tractor trailers. See Note 13 for additional information. (2)Primarily includes storage, transportation and pipeline throughput agreements, as well as certain rights-of-way easements. Expense associated with our storage, transportation and pipeline throughput agreements was approximately $387 million, $396 million and $336 million for 2024, 2023 and 2022, respectively. A majority of the storage, transportation and pipeline throughput commitments are associated with agreements to store crude oil at facilities and transport crude oil on pipelines owned by equity method investees at posted tariff rates or prices that we believe approximate market. A portion of our commitment to transport is supported by crude oil buy/sell or other agreements with third parties with commensurate quantities. Other commitments for 2025 also include amounts associated with an agreement to purchase a crude oil gathering business in the Delaware Basin for $161 million (approximately $105 million net to our 65% interest in the Permian JV), net of a cash deposit of approximately $16 million paid in December 2024. See Note 7 for additional information.
Schedule of Consolidated Balance Sheets | Our estimated undiscounted reserve for environmental liabilities (excluding liabilities related to the Line 901 incident, as discussed further below) were reflected on our Consolidated Balance Sheets as follows (in millions):
| December 31, 2024 |  | December 31, 2023
Other current liabilities | $ | 15 |  |  | $ | 10 |
Other long-term liabilities and deferred credits (1) | 81 |  |  | 46 |
Total | $ | 96 |  |  | $ | 56 |
(1) The 2024 balance reflects an increase in estimated costs for long-term environmental remediation obligations.

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- Definition Tabular disclosure of environmental loss contingencies by individual site. Does not include loss contingencies that are not environmental in nature. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480102/450-20-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.Y.Q2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480102/450-20-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481931/410-30-50-10 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481931/410-30-50-10 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 410 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Subparagraph (d)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481931/410-30-50-10 + Details
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