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Business Segments and Related Information - Schedule of Segment Financial Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Segment revenues: |  |  |
Revenues | $ 52,596 | $ 56,219 | $ 49,715
Significant segment expenses: |  |  |
Cost of sales | 38,566 | 42,580 | 37,023
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 361 | 408 | 462
NGL Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 17,316 | 20,276 | 17,645
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 83 | 117 | 133
Crude Oil Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 20,761 | 21,580 | 19,336
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 271 | 285 | 320
Natural Gas Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 4,167 | 3,004 | 3,776
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 5 | 5 | 6
Petrochemical & Refined Products Services |  |  |
Segment revenues: |  |  |
Revenues | 10,352 | 11,359 | 8,958
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 2 | 1 | 3
Nonrelated Party |  |  |
Segment revenues: |  |  |
Revenues | 52,544 | 56,161 | 49,654
Related Party |  |  |
Segment revenues: |  |  |
Revenues | 52 | 58 | 61
Operating Segments |  |  |
Segment revenues: |  |  |
Revenues | 184,136 | 185,475 | 171,736
Significant segment expenses: |  |  |
Cost of sales | 168,969 | 170,769 | 157,973
Variable operating costs and expenses | 1,514 | 1,323 | 1,388
Fixed operating costs and expenses | 4,045 | 3,820 | 3,464
Total operating costs and expenses | 174,528 | 175,912 | 162,825
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 361 | 408 | 462
Other segment items | 85 | 47 | 3
Total other segment income (expense), net | 446 | 455 | 465
Total segment gross operating margin | 10,054 | 10,018 | 9,376
Other financial information: |  |  |
Capital expenditures | 5,620 | 4,544 | 3,266
Operating Segments | NGL Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 84,375 | 69,098 | 63,135
Significant segment expenses: |  |  |
Cost of sales | 76,347 | 61,260 | 56,143
Variable operating costs and expenses | 844 | 745 | 741
Fixed operating costs and expenses | 1,750 | 1,682 | 1,589
Total operating costs and expenses | 78,941 | 63,687 | 58,473
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 83 | 117 | 133
Other segment items | 42 | 20 | 103
Total other segment income (expense), net | 125 | 137 | 236
Total segment gross operating margin | 5,559 | 5,548 | 4,898
Other financial information: |  |  |
Capital expenditures | 3,326 | 2,498 | 1,366
Operating Segments | Crude Oil Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 63,136 | 75,995 | 76,458
Significant segment expenses: |  |  |
Cost of sales | 61,380 | 74,098 | 74,437
Variable operating costs and expenses | 140 | 132 | 191
Fixed operating costs and expenses | 408 | 414 | 403
Total operating costs and expenses | 61,928 | 74,644 | 75,031
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 271 | 285 | 320
Other segment items | 22 | 10 | (40)
Total other segment income (expense), net | 293 | 295 | 280
Total segment gross operating margin | 1,501 | 1,646 | 1,707
Other financial information: |  |  |
Capital expenditures | 112 | 161 | 119
Operating Segments | Natural Gas Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 5,127 | 3,671 | 4,303
Significant segment expenses: |  |  |
Cost of sales | 2,746 | 1,656 | 2,583
Variable operating costs and expenses | 77 | 73 | 59
Fixed operating costs and expenses | 758 | 676 | 595
Total operating costs and expenses | 3,581 | 2,405 | 3,237
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 5 | 5 | 6
Other segment items | 7 | 6 | 5
Total other segment income (expense), net | 12 | 11 | 11
Total segment gross operating margin | 1,558 | 1,277 | 1,077
Other financial information: |  |  |
Capital expenditures | 1,628 | 932 | 793
Operating Segments | Petrochemical & Refined Products Services |  |  |
Segment revenues: |  |  |
Revenues | 31,498 | 36,711 | 27,840
Significant segment expenses: |  |  |
Cost of sales | 28,496 | 33,755 | 24,810
Variable operating costs and expenses | 453 | 373 | 397
Fixed operating costs and expenses | 1,129 | 1,048 | 877
Total operating costs and expenses | 30,078 | 35,176 | 26,084
Other segment income: |  |  |
Equity in income of unconsolidated affiliates | 2 | 1 | 3
Other segment items | 14 | 11 | (65)
Total other segment income (expense), net | 16 | 12 | (62)
Total segment gross operating margin | 1,436 | 1,547 | 1,694
Other financial information: |  |  |
Capital expenditures | 554 | 953 | 988
Operating Segments | Nonrelated Party |  |  |
Segment revenues: |  |  |
Revenues | 52,544 | 56,161 | 49,654
Operating Segments | Nonrelated Party | NGL Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 17,308 | 20,264 | 17,635
Operating Segments | Nonrelated Party | Crude Oil Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 20,735 | 21,546 | 19,300
Operating Segments | Nonrelated Party | Natural Gas Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 4,149 | 2,992 | 3,761
Operating Segments | Nonrelated Party | Petrochemical & Refined Products Services |  |  |
Segment revenues: |  |  |
Revenues | 10,352 | 11,359 | 8,958
Operating Segments | Related Party |  |  |
Segment revenues: |  |  |
Revenues | 52 | 58 | 61
Operating Segments | Related Party | NGL Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 8 | 12 | 10
Operating Segments | Related Party | Crude Oil Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 26 | 34 | 36
Operating Segments | Related Party | Natural Gas Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | 18 | 12 | 15
Operating Segments | Related Party | Petrochemical & Refined Products Services |  |  |
Segment revenues: |  |  |
Revenues | 0 | 0 | 0
Eliminations |  |  |
Segment revenues: |  |  |
Revenues | (131,540) | (129,256) | (122,021)
Eliminations | NGL Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | (67,059) | (48,822) | (45,490)
Eliminations | Crude Oil Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | (42,375) | (54,415) | (57,122)
Eliminations | Natural Gas Pipelines & Services |  |  |
Segment revenues: |  |  |
Revenues | (960) | (667) | (527)
Eliminations | Petrochemical & Refined Products Services |  |  |
Segment revenues: |  |  |
Revenues | $ (21,146) | $ (25,352) | $ (18,882)

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- Definition Equity in income of unconsolidated affiliates and other items for each business segment as follows. NGL Pipelines & Services: Non-refundable payments received from shippers attributable to make-up rights, subsequent recognition of revenues attributable to make-up rights, and other segment expenses. Crude Oil Pipelines & Services: Non-refundable payments received from shippers attributable to make-up rights and subsequent recognition of revenues attributable to make-up rights. Natural Gas Pipelines & Services: Other segment expenses. Petrochemical & Refined Products Services: Other segment expenses. + References No definition available. + Details
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