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Business Segments and Related Information, Segment Reporting Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2024 | Sep. 30, 2023 | Dec. 31, 2023
Information by business segment [Abstract] |  |  |  |  |
Segment gross operating margin | $ 2,448 | $ 2,320 | $ 7,382 | $ 6,815 |
Revenues from third parties | 13,759 | 11,980 | 41,976 | 35,049 |
Revenues from related parties | 16 | 18 | 42 | 44 |
Intersegment and intrasegment revenues | 0 | 0 | 0 | 0 |
Total revenues | 13,775 | 11,998 | 42,018 | 35,093 |
Equity in income of unconsolidated affiliates | 99 | 122 | 302 | 347 |
Property, plant and equipment, net | 48,099 |  | 48,099 |  | $ 45,804
Investments in unconsolidated affiliates | 2,268 |  | 2,268 |  | 2,330
Intangible assets, net | 3,619 |  | 3,619 |  | 3,770
Goodwill | 5,608 |  | 5,608 |  | 5,608
Segment assets | 59,594 |  | 59,594 |  | 57,512
NGL Pipelines & Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Total revenues | 4,831 | 3,757 | 14,236 | 12,375 |
Equity in income of unconsolidated affiliates | 27 | 32 | 84 | 101 |
Investments in unconsolidated affiliates | 597 |  | 597 |  | 612
Intangible assets, net | 797 |  | 797 |  | 828
Crude Oil Pipelines & Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Total revenues | 5,251 | 5,365 | 16,554 | 13,850 |
Equity in income of unconsolidated affiliates | 70 | 89 | 212 | 241 |
Investments in unconsolidated affiliates | 1,634 |  | 1,634 |  | 1,681
Intangible assets, net | 1,595 |  | 1,595 |  | 1,673
Natural Gas Pipelines & Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Total revenues | 649 | 884 | 2,115 | 2,874 |
Equity in income of unconsolidated affiliates | 2 | 1 | 5 | 4 |
Investments in unconsolidated affiliates | 34 |  | 34 |  | 33
Intangible assets, net | 1,121 |  | 1,121 |  | 1,158
Petrochemical & Refined Products Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Total revenues | 3,044 | 1,992 | 9,113 | 5,994 |
Equity in income of unconsolidated affiliates | 0 | 0 | 1 | 1 |
Investments in unconsolidated affiliates | 3 |  | 3 |  | 4
Intangible assets, net | 106 |  | 106 |  | 111
Reportable Business Segments [Member] | NGL Pipelines & Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Segment gross operating margin | 1,335 | 1,196 | 4,000 | 3,518 |
Revenues from third parties | 4,828 | 3,754 | 14,227 | 12,367 |
Revenues from related parties | 3 | 3 | 9 | 8 |
Intersegment and intrasegment revenues | 11,044 | 12,367 | 34,157 | 34,347 |
Total revenues | 15,875 | 16,124 | 48,393 | 46,722 |
Equity in income of unconsolidated affiliates | 27 | 32 | 84 | 101 |
Property, plant and equipment, net | 17,784 |  | 17,784 |  | 17,541
Investments in unconsolidated affiliates | 597 |  | 597 |  | 612
Intangible assets, net | 797 |  | 797 |  | 828
Goodwill | 2,811 |  | 2,811 |  | 2,811
Segment assets | 21,989 |  | 21,989 |  | 21,792
Reportable Business Segments [Member] | Crude Oil Pipelines & Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Segment gross operating margin | 401 | 432 | 1,229 | 1,251 |
Revenues from third parties | 5,241 | 5,354 | 16,530 | 13,825 |
Revenues from related parties | 10 | 11 | 24 | 25 |
Intersegment and intrasegment revenues | 13,678 | 16,343 | 42,547 | 41,139 |
Total revenues | 18,929 | 21,708 | 59,101 | 54,989 |
Equity in income of unconsolidated affiliates | 70 | 89 | 212 | 241 |
Property, plant and equipment, net | 6,374 |  | 6,374 |  | 6,627
Investments in unconsolidated affiliates | 1,634 |  | 1,634 |  | 1,681
Intangible assets, net | 1,595 |  | 1,595 |  | 1,673
Goodwill | 1,841 |  | 1,841 |  | 1,841
Segment assets | 11,444 |  | 11,444 |  | 11,822
Reportable Business Segments [Member] | Natural Gas Pipelines & Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Segment gross operating margin | 349 | 239 | 954 | 791 |
Revenues from third parties | 646 | 880 | 2,106 | 2,863 |
Revenues from related parties | 3 | 4 | 9 | 11 |
Intersegment and intrasegment revenues | 166 | 133 | 481 | 386 |
Total revenues | 815 | 1,017 | 2,596 | 3,260 |
Equity in income of unconsolidated affiliates | 2 | 1 | 5 | 4 |
Property, plant and equipment, net | 10,256 |  | 10,256 |  | 10,019
Investments in unconsolidated affiliates | 34 |  | 34 |  | 33
Intangible assets, net | 1,121 |  | 1,121 |  | 1,158
Goodwill | 0 |  | 0 |  | 0
Segment assets | 11,411 |  | 11,411 |  | 11,210
Reportable Business Segments [Member] | Petrochemical & Refined Products Services [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Segment gross operating margin | 363 | 453 | 1,199 | 1,255 |
Revenues from third parties | 3,044 | 1,992 | 9,113 | 5,994 |
Revenues from related parties | 0 | 0 | 0 | 0 |
Intersegment and intrasegment revenues | 6,944 | 4,307 | 18,982 | 13,108 |
Total revenues | 9,988 | 6,299 | 28,095 | 19,102 |
Equity in income of unconsolidated affiliates | 0 | 0 | 1 | 1 |
Property, plant and equipment, net | 10,146 |  | 10,146 |  | 9,372
Investments in unconsolidated affiliates | 3 |  | 3 |  | 4
Intangible assets, net | 106 |  | 106 |  | 111
Goodwill | 956 |  | 956 |  | 956
Segment assets | 11,211 |  | 11,211 |  | 10,443
Eliminations [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Revenues from third parties | 0 | 0 | 0 | 0 |
Revenues from related parties | 0 | 0 | 0 | 0 |
Intersegment and intrasegment revenues | (31,832) | (33,150) | (96,167) | (88,980) |
Total revenues | (31,832) | (33,150) | (96,167) | (88,980) |
Equity in income of unconsolidated affiliates | 0 | $ 0 | 0 | $ 0 |
Adjustments [Member] |  |  |  |  |
Information by business segment [Abstract] |  |  |  |  |
Property, plant and equipment, net | 3,539 |  | 3,539 |  | 2,245
Investments in unconsolidated affiliates | 0 |  | 0 |  | 0
Intangible assets, net | 0 |  | 0 |  | 0
Goodwill | 0 |  | 0 |  | 0
Segment assets | $ 3,539 |  | $ 3,539 |  | $ 2,245

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