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SEGMENTS - Schedule of Operating Segments Financial Information (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
USD ($)
Sep. 30, 2024
USD ($)
Sep. 30, 2025
USD ($)
segment
Sep. 30, 2024
USD ($)
Dec. 31, 2024
USD ($)
Segment Reporting Information [Line Items]          
Number of reportable segments | segment     4    
Total revenues $ 8,634 $ 5,023 $ 24,564 $ 14,698  
Cost of sales and fuel (exclusive of depreciation and operating costs) (5,962) (3,027) (16,977) (8,815)  
Operating costs (738) (582) (2,196) (1,720)  
Other 12 (2) 18 65  
Segment adjusted EBITDA 2,096 1,549 5,863 4,614  
Depreciation and amortization (378) (274) (1,126) (790)  
Equity in net earnings from investments 92 92 281 256  
Investments in unconsolidated affiliates 2,773 1,925 2,773 1,925 $ 2,316
Total assets 66,616 51,050 66,616 51,050 $ 64,069
Capital expenditures 804 468 2,182 1,459  
Natural Gas Gathering and Processing | Natural Gas Gathering and Processing Intersegment          
Segment Reporting Information [Line Items]          
Total revenues 1,100 657 3,400 1,900  
Natural Gas Liquids | Natural Gas Gathering and Processing Intersegment          
Segment Reporting Information [Line Items]          
Total revenues 99   239    
Liquids commodity sales          
Segment Reporting Information [Line Items]          
Total revenues 6,665 3,860 18,614 11,241  
Residue natural gas sales          
Segment Reporting Information [Line Items]          
Total revenues 751 219 2,440 760  
Exchange services and natural gas gathering and processing revenue          
Segment Reporting Information [Line Items]          
Total revenues 406   1,156    
Gathering, processing and exchange services revenue          
Segment Reporting Information [Line Items]          
Total revenues   164   491  
Transportation and storage revenue          
Segment Reporting Information [Line Items]          
Total revenues 775 743 2,245 2,106  
Other revenue          
Segment Reporting Information [Line Items]          
Total revenues 37 37 109 100  
Operating Segments          
Segment Reporting Information [Line Items]          
Total revenues 9,815 5,718 28,244 16,746  
Cost of sales and fuel (exclusive of depreciation and operating costs) (7,143) (3,723) (20,658) (10,866)  
Operating costs (736) (581) (2,191) (1,717)  
Adjusted EBITDA from unconsolidated affiliates 130 112 381 323  
Noncash compensation expense and other 30 23 87 72  
Other       56  
Segment adjusted EBITDA 2,096 1,549 5,863 4,614  
Depreciation and amortization (375) (274) (1,118) (786)  
Equity in net earnings from investments 92 92 281 256  
Investments in unconsolidated affiliates 2,768 1,922 2,768 1,922  
Total assets 65,148 44,549 65,148 44,549  
Capital expenditures 789 450 2,116 1,411  
Operating Segments | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues 1,841 905 5,886 2,761  
Cost of sales and fuel (exclusive of depreciation and operating costs) (1,038) (464) (3,576) (1,479)  
Operating costs (244) (129) (737) (365)  
Adjusted EBITDA from unconsolidated affiliates 1 0 4 3  
Noncash compensation expense and other 6 6 20 16  
Other       59  
Segment adjusted EBITDA 566 318 1,597 995  
Depreciation and amortization (126) (71) (374) (215)  
Equity in net earnings from investments 1 (1) 3 1  
Investments in unconsolidated affiliates 40 31 40 31  
Total assets 16,266 7,113 16,266 7,113  
Capital expenditures 302 102 884 319  
Operating Segments | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues 3,895 3,679 12,034 10,645  
Cost of sales and fuel (exclusive of depreciation and operating costs) (2,977) (2,906) (9,464) (8,352)  
Operating costs (202) (183) (615) (545)  
Adjusted EBITDA from unconsolidated affiliates 26 26 76 70  
Noncash compensation expense and other 6 8 25 26  
Other       3  
Segment adjusted EBITDA 748 624 2,056 1,847  
Depreciation and amortization (116) (89) (341) (260)  
Equity in net earnings from investments 24 24 69 63  
Investments in unconsolidated affiliates 597 417 597 417  
Total assets 20,047 15,701 20,047 15,701  
Capital expenditures 218 247 524 785  
Operating Segments | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues 450 171 1,319 519  
Cost of sales and fuel (exclusive of depreciation and operating costs) (255) (1) (735) (18)  
Operating costs (59) (52) (167) (157)  
Adjusted EBITDA from unconsolidated affiliates 63 45 179 133  
Noncash compensation expense and other 1 3 4 6  
Other       0  
Segment adjusted EBITDA 200 166 600 483  
Depreciation and amortization (25) (21) (73) (57)  
Equity in net earnings from investments 39 34 116 102  
Investments in unconsolidated affiliates 860 516 860 516  
Total assets 4,610 2,704 4,610 2,704  
Capital expenditures 55 56 169 187  
Operating Segments | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues 3,629 963 9,005 2,821  
Cost of sales and fuel (exclusive of depreciation and operating costs) (2,873) (352) (6,883) (1,017)  
Operating costs (231) (217) (672) (650)  
Adjusted EBITDA from unconsolidated affiliates 40 41 122 117  
Noncash compensation expense and other 17 6 38 24  
Other       (6)  
Segment adjusted EBITDA 582 441 1,610 1,289  
Depreciation and amortization (108) (93) (330) (254)  
Equity in net earnings from investments 28 35 93 90  
Investments in unconsolidated affiliates 1,271 958 1,271 958  
Total assets 24,225 19,031 24,225 19,031  
Capital expenditures 214 45 539 120  
Operating Segments | Liquids commodity sales          
Segment Reporting Information [Line Items]          
Total revenues 7,822 4,551 22,218 13,266  
Operating Segments | Liquids commodity sales | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues 1,066 648 3,393 1,912  
Operating Segments | Liquids commodity sales | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues 3,746 3,496 11,598 10,104  
Operating Segments | Liquids commodity sales | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues 0 0 0 0  
Operating Segments | Liquids commodity sales | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues 3,010 407 7,227 1,250  
Operating Segments | Residue natural gas sales          
Segment Reporting Information [Line Items]          
Total revenues 764 219 2,487 760  
Operating Segments | Residue natural gas sales | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues 468 219 1,615 732  
Operating Segments | Residue natural gas sales | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues 0 0 0 0  
Operating Segments | Residue natural gas sales | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues 296 0 872 28  
Operating Segments | Residue natural gas sales | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues 0 0 0 0  
Operating Segments | Exchange services and natural gas gathering and processing revenue          
Segment Reporting Information [Line Items]          
Total revenues 409   1,159    
Operating Segments | Exchange services and natural gas gathering and processing revenue | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues 298   852    
Operating Segments | Exchange services and natural gas gathering and processing revenue | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues 111   307    
Operating Segments | Exchange services and natural gas gathering and processing revenue | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues 0   0    
Operating Segments | Exchange services and natural gas gathering and processing revenue | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues 0   0    
Operating Segments | Gathering, processing and exchange services revenue          
Segment Reporting Information [Line Items]          
Total revenues   164   491  
Operating Segments | Gathering, processing and exchange services revenue | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues   35   101  
Operating Segments | Gathering, processing and exchange services revenue | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues   129   390  
Operating Segments | Gathering, processing and exchange services revenue | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues   0   0  
Operating Segments | Gathering, processing and exchange services revenue | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues   0   0  
Operating Segments | Transportation and storage revenue          
Segment Reporting Information [Line Items]          
Total revenues 780 747 2,260 2,122  
Operating Segments | Transportation and storage revenue | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues 0 0 0 0  
Operating Segments | Transportation and storage revenue | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues 36 50 121 141  
Operating Segments | Transportation and storage revenue | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues 154 171 447 491  
Operating Segments | Transportation and storage revenue | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues 590 526 1,692 1,490  
Operating Segments | Other revenue          
Segment Reporting Information [Line Items]          
Total revenues 40 37 120 107  
Operating Segments | Other revenue | Natural Gas Gathering and Processing          
Segment Reporting Information [Line Items]          
Total revenues 9 3 26 16  
Operating Segments | Other revenue | Natural Gas Liquids          
Segment Reporting Information [Line Items]          
Total revenues 2 4 8 10  
Operating Segments | Other revenue | Natural Gas Pipelines          
Segment Reporting Information [Line Items]          
Total revenues 0 0 0 0  
Operating Segments | Other revenue | Refined Products and Crude          
Segment Reporting Information [Line Items]          
Total revenues $ 29 $ 30 $ 86 $ 81