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Business Segments and Related Information - Schedule of Segment Financial Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment revenues: |  |  |  |
Revenues | $ 11,363 | $ 13,483 | $ 26,780 | $ 28,243
Significant segment expenses: |  |  |  |
Cost of sales | 7,899 | 10,184 | 19,904 | 21,589
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 92 | 101 | 186 | 203
NGL Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 3,406 | 4,265 | 8,806 | 9,405
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 18 | 26 | 38 | 57
Crude Oil Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 4,783 | 5,888 | 9,904 | 11,303
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 72 | 73 | 144 | 142
Natural Gas Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 1,071 | 612 | 2,292 | 1,466
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 0 | 1 | 2 | 3
Petrochemical & Refined Products Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 2,103 | 2,718 | 5,778 | 6,069
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 2 | 1 | 2 | 1
Nonrelated Party |  |  |  |
Segment revenues: |  |  |  |
Revenues | 11,352 | 13,472 | 26,756 | 28,217
Related parties |  |  |  |
Segment revenues: |  |  |  |
Revenues | 11 | 11 | 24 | 26
Operating Segments |  |  |  |
Segment revenues: |  |  |  |
Revenues | 43,690 | 45,935 | 94,173 | 92,578
Significant segment expenses: |  |  |  |
Cost of sales | 39,950 | 42,403 | 86,745 | 85,395
Variable operating costs and expenses | 365 | 302 | 727 | 631
Fixed operating costs and expenses | 1,008 | 923 | 2,003 | 1,851
Total significant segment expenses | 41,323 | 43,628 | 89,475 | 87,877
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 92 | 101 | 186 | 203
Other segment items | 12 | 19 | 51 | 30
Total other segment income (expense), net | 104 | 120 | 237 | 233
Total segment gross operating margin | 2,471 | 2,427 | 4,935 | 4,934
Other financial information: |  |  |  |
Capital expenditures | 1,299 | 1,264 | 2,361 | 2,311
Operating Segments | NGL Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 20,410 | 15,823 | 42,827 | 32,518
Significant segment expenses: |  |  |  |
Cost of sales | 18,487 | 13,957 | 38,920 | 28,767
Variable operating costs and expenses | 204 | 167 | 403 | 341
Fixed operating costs and expenses | 442 | 404 | 865 | 829
Total significant segment expenses | 19,133 | 14,528 | 40,188 | 29,937
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 18 | 26 | 38 | 57
Other segment items | 2 | 4 | 38 | 27
Total other segment income (expense), net | 20 | 30 | 76 | 84
Total segment gross operating margin | 1,297 | 1,325 | 2,715 | 2,665
Other financial information: |  |  |  |
Capital expenditures | 825 | 629 | 1,460 | 1,206
Operating Segments | Crude Oil Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 14,107 | 20,930 | 29,850 | 40,172
Significant segment expenses: |  |  |  |
Cost of sales | 13,660 | 20,467 | 28,967 | 39,216
Variable operating costs and expenses | 34 | 26 | 69 | 72
Fixed operating costs and expenses | 88 | 103 | 189 | 207
Total significant segment expenses | 13,782 | 20,596 | 29,225 | 39,495
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 72 | 73 | 144 | 142
Other segment items | 6 | 10 | 8 | 9
Total other segment income (expense), net | 78 | 83 | 152 | 151
Total segment gross operating margin | 403 | 417 | 777 | 828
Other financial information: |  |  |  |
Capital expenditures | 25 | 44 | 48 | 81
Operating Segments | Natural Gas Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 1,273 | 750 | 2,726 | 1,781
Significant segment expenses: |  |  |  |
Cost of sales | 644 | 269 | 1,543 | 827
Variable operating costs and expenses | 20 | 24 | 42 | 39
Fixed operating costs and expenses | 195 | 168 | 372 | 318
Total significant segment expenses | 859 | 461 | 1,957 | 1,184
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 0 | 1 | 2 | 3
Other segment items | 3 | 3 | 3 | 5
Total other segment income (expense), net | 3 | 4 | 5 | 8
Total segment gross operating margin | 417 | 293 | 774 | 605
Other financial information: |  |  |  |
Capital expenditures | 327 | 246 | 630 | 450
Operating Segments | Petrochemical & Refined Products Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 7,900 | 8,432 | 18,770 | 18,107
Significant segment expenses: |  |  |  |
Cost of sales | 7,159 | 7,710 | 17,315 | 16,585
Variable operating costs and expenses | 107 | 85 | 213 | 179
Fixed operating costs and expenses | 283 | 248 | 577 | 497
Total significant segment expenses | 7,549 | 8,043 | 18,105 | 17,261
Other segment income (expense): |  |  |  |
Equity in income of unconsolidated affiliates | 2 | 1 | 2 | 1
Other segment items | 1 | 2 | 2 | (11)
Total other segment income (expense), net | 3 | 3 | 4 | (10)
Total segment gross operating margin | 354 | 392 | 669 | 836
Other financial information: |  |  |  |
Capital expenditures | 122 | 345 | 223 | 574
Operating Segments | Nonrelated Party |  |  |  |
Segment revenues: |  |  |  |
Revenues | 11,352 | 13,472 | 26,756 | 28,217
Operating Segments | Nonrelated Party | NGL Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 3,404 | 4,262 | 8,802 | 9,399
Operating Segments | Nonrelated Party | Crude Oil Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 4,777 | 5,883 | 9,892 | 11,289
Operating Segments | Nonrelated Party | Natural Gas Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 1,068 | 609 | 2,284 | 1,460
Operating Segments | Nonrelated Party | Petrochemical & Refined Products Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 2,103 | 2,718 | 5,778 | 6,069
Operating Segments | Related parties |  |  |  |
Segment revenues: |  |  |  |
Revenues | 11 | 11 | 24 | 26
Operating Segments | Related parties | NGL Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 2 | 3 | 4 | 6
Operating Segments | Related parties | Crude Oil Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 6 | 5 | 12 | 14
Operating Segments | Related parties | Natural Gas Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 3 | 3 | 8 | 6
Operating Segments | Related parties | Petrochemical & Refined Products Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | 0 | 0 | 0 | 0
Intersegment Eliminations |  |  |  |
Segment revenues: |  |  |  |
Revenues | (32,327) | (32,452) | (67,393) | (64,335)
Intersegment Eliminations | NGL Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | (17,004) | (11,558) | (34,021) | (23,113)
Intersegment Eliminations | Crude Oil Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | (9,324) | (15,042) | (19,946) | (28,869)
Intersegment Eliminations | Natural Gas Pipelines & Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | (202) | (138) | (434) | (315)
Intersegment Eliminations | Petrochemical & Refined Products Services |  |  |  |
Segment revenues: |  |  |  |
Revenues | $ (5,797) | $ (5,714) | $ (12,992) | $ (12,038)

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