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Property, Plant and Equipment (Tables)
 12 Months Ended
Dec. 31, 2025
Property, Plant and Equipment [Abstract]  
Schedule of Historical Costs of our Property, Plant and Equipment and Related Balances
The historical costs of our property, plant and equipment and related balances were as follows at the dates indicated:
Estimated
Useful Life
in Years		December 31,
20252024
Plants, pipelines and facilities (1)(5)
3-45
$66,498 $60,716 
Underground and other storage facilities (2)(6)
5-40
4,871 4,704 
Transportation equipment (3)
3-10
294 272 
Marine vessels (4)
15-30
970 949 
Land439 424 
Construction in progress2,400 4,138 
Subtotal75,472 71,203 
Less accumulated depreciation24,338 22,330 
Subtotal property, plant and equipment, net51,134 48,873 
Capitalized major maintenance costs for reaction-based plants, net of accumulated amortization (7)
225 189 
Property, plant and equipment, net$51,359 $49,062 
(1)Plants, pipelines and facilities include distillation-based and reaction-based plants; NGL, natural gas, crude oil and petrochemical and refined products pipelines; terminal loading and unloading facilities; buildings; office furniture and equipment; laboratory and shop equipment and related assets.
(2)Underground and other storage facilities include underground product storage caverns; above ground storage tanks; water wells and related assets.
(3)Transportation equipment includes tractor-trailer tank trucks and other vehicles and similar assets used in our operations.
(4)Marine vessels include tow boats, barges and related equipment used in our marine transportation business.
(5)In general, the estimated useful lives of major assets within this category are: distillation-based and reaction-based plants, 20-35 years; pipelines and related equipment, 5-45 years; terminal facilities, 10-35 years; buildings, 20-40 years; office furniture and equipment, 3-20 years; and laboratory and shop equipment, 5-35 years.
(6)In general, the estimated useful lives of assets within this category are: underground storage facilities, 5-35 years; storage tanks, 10-40 years; and water wells, 5-35 years.
(7)For reaction-based plants, we use the deferral method when accounting for major maintenance activities. Under the deferral method, major maintenance costs are capitalized and amortized over the period until the next major overhaul project. On a weighted-average basis, the expected remaining amortization period for these costs is 2.5 years.
The following table summarizes our depreciation expense and capitalized interest amounts for the years indicated:
For the Year Ended December 31,
202520242023
Depreciation expense (1)$2,087 $1,974 $1,860 
Capitalized interest (2)182 121 106 
(1)Depreciation expense is a component of “Third party and other costs” within “Costs and expenses” as presented on our Statements of Consolidated Operations.
(2)Capitalized interest is a component of “Interest expense” as presented on our Statements of Consolidated Operations.
Schedule of Information Regarding our Asset Retirement Obligations, or AROs
The following table presents information regarding our AROs for the years indicated:
For the Year Ended December 31,
202520242023
ARO liability beginning balance$265 $225 $234 
Liabilities incurred (1)10 1 5 
Revisions in estimated cash flows (2)1 30 (12)
Liabilities settled (3)(6)(4)(13)
Accretion expense (4)20 13 11 
ARO liability ending balance$290 $265 $225 
(1)Represents the initial recognition of estimated ARO liabilities during the period.
(2)Represents subsequent adjustments to estimated ARO liabilities during the period.
(3)Represents cash payments to settle ARO liabilities during the period.
(4)Represents net change in ARO liability balance attributable to the passage of time and other adjustments, including true-up amounts associated with revised closure estimates.
The following table presents our forecast of ARO-related accretion expense for the years indicated:
20262027202820292030
$17 $18 $19 $20 $21 
Schedule of Impairments of Property, Plant and Equipment
The following table presents our non-cash asset impairment charges involving property, plant and equipment by business segment for the years indicated:
For the Year Ended December 31,
202520242023
NGL Pipelines & Services$14 $28 $12 
Crude Oil Pipelines & Services4 – 1 
Natural Gas Pipelines & Services11 7 5 
Petrochemical & Refined Products Services16 15 2 
Total impairment charges for property, plant and equipment$45 $50 $20