v3.25.4
Commitments and Contingencies (Tables)
 12 Months Ended
Dec. 31, 2025
Loss Contingencies [Line Items]  
Schedule of Future Non-Cancelable Commitments Future noncancelable commitments related to these items at December 31, 2025 are summarized below (in millions):
20262027202820292030ThereafterTotal
Leases (1)
$46 $44 $43 $34 $28 $346 $541 
Other commitments (2)
245 215 116 114 117 141 948 
Total$291 $259 $159 $148 $145 $487 $1,489 
(1)Includes both operating and finance leases as defined by FASB guidance. Leases are primarily for (i) office space, (ii) land, (iii) vehicles, (iv) storage tanks and (v) tractor trailers. See Note 14 for additional information.
(2)Primarily includes storage, transportation and pipeline throughput agreements. Expense associated with such agreements was approximately $363 million, $341 million and $348 million for 2025, 2024 and 2023, 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.
Excluding Line 901 Incident  
Loss Contingencies [Line Items]  
Schedule of Environmental Loss Contingencies by Site
Our estimated undiscounted reserves 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,
2025		December 31,
2024
Other current liabilities$13 $11 
Other long-term liabilities and deferred credits
70 69 
Total$83 $80