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SEGMENTS (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 | Mar. 31, 2020 | Dec. 31, 2020
Segment disclosure [Abstract] |  |  |
Revenues | $ 3,194,679 | $ 2,136,672 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (2,121,510) | (1,276,928) |
Operating costs | (251,597) | (207,040) |
Equity in net earnings from investments | 33,320 | 44,627 |
Depreciation and amortization | (157,120) | (132,353) |
Impairment charges | 0 | (641,754) |
Investments in unconsolidated affiliates | 807,721 | 810,479 | $ 805,032
Total assets | 23,179,929 | 21,969,440 | $ 23,078,754
Capital expenditures | 176,734 | 949,679 |
Net income (loss) | 386,176 | (141,857) |
Interest expense, net of capitalized interest | 185,523 | 140,616 |
Income tax expense (benefit) | 122,132 | (55,395) |
Noncash compensation expense | 16,283 | (1,302) |
Other corporate costs and noncash items | (715) | (33,081) |
Gain (loss) on extinguishment of debt |  | 15,800 |
Impairment of equity investments | 0 | 37,730 |
Natural Gas Gathering And Processing [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Impairment of long-lived assets |  | 380,500 |
Goodwill impairment charge |  | 153,400 |
Natural Gas Liquids |  |  |
Segment disclosure [Abstract] |  |  |
Impairment of long-lived assets |  | 70,200 |
Natural Gas Gathering And Processing [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 839,741 | 449,980 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (555,306) | (202,170) |
Operating costs | (84,598) | (84,470) |
Equity in net earnings from investments | 1,728 | 806 |
Noncash compensation expense and other | 3,151 | (4,498) |
Segment adjusted EBITDA | 204,716 | 159,648 |
Depreciation and amortization | (67,032) | (58,756) |
Impairment charges |  | (564,353) |
Investments in unconsolidated affiliates | 24,584 | 4,276 |
Total assets | 6,535,260 | 6,374,552 |
Capital expenditures | 39,651 | 181,610 |
Natural Gas Gathering And Processing [Member] | Venice Energy Services Company [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Impairment of equity investments |  | 30,500 |
Natural Gas Liquids |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 2,610,065 | 1,770,592 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (2,060,319) | (1,278,754) |
Operating costs | (124,369) | (89,571) |
Equity in net earnings from investments | 3,604 | 15,268 |
Noncash compensation expense and other | 6,647 | (6,619) |
Segment adjusted EBITDA | 435,628 | 410,916 |
Depreciation and amortization | (74,542) | (57,841) |
Impairment charges |  | (77,401) |
Investments in unconsolidated affiliates | 420,614 | 435,024 |
Total assets | 13,944,887 | 12,682,807 |
Capital expenditures | 112,021 | 746,183 |
Natural Gas Liquids | Chisholm Pipeline Company [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Impairment of equity investments |  | 7,200 |
Natural Gas Pipelines |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 248,814 | 120,783 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (10,013) | (1,539) |
Operating costs | (42,317) | (33,307) |
Equity in net earnings from investments | 27,988 | 28,553 |
Noncash compensation expense and other | 1,703 | (1,966) |
Segment adjusted EBITDA | 226,175 | 112,524 |
Depreciation and amortization | (14,476) | (14,769) |
Impairment charges |  | 0 |
Investments in unconsolidated affiliates | 362,523 | 371,179 |
Total assets | 2,096,459 | 2,089,362 |
Capital expenditures | 21,157 | 16,590 |
Total Segments [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 3,698,620 | 2,341,355 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (2,625,638) | (1,482,463) |
Operating costs | (251,284) | (207,348) |
Equity in net earnings from investments | 33,320 | 44,627 |
Noncash compensation expense and other | 11,501 | (13,083) |
Segment adjusted EBITDA | 866,519 | 683,088 |
Depreciation and amortization | (156,050) | (131,366) |
Impairment charges |  | (641,754) |
Investments in unconsolidated affiliates | 807,721 | 810,479 |
Total assets | 22,576,606 | 21,146,721 |
Capital expenditures | 172,829 | 944,383 |
Other and Eliminations |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | (503,941) | (204,683) |
Cost of sales and fuel (exclusive of depreciation and operating costs) | 504,128 | 205,535 |
Operating costs | (313) | 308 |
Equity in net earnings from investments | 0 | 0 |
Depreciation and amortization | (1,070) | (987) |
Impairment charges |  | 0 |
Investments in unconsolidated affiliates | 0 | 0 |
Total assets | 603,323 | 822,719 |
Capital expenditures | 3,905 | 5,296 |
Natural Gas Gathering and Processing Intersegment [Member] | Natural Gas Gathering And Processing [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 481,600 | 213,300 |
Natural Gas Liquids Regulated [Member] | Natural Gas Liquids |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 570,600 | 435,100 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (135,800) | (120,400) |
Natural Gas Pipelines Regulated [Member] | Natural Gas Pipelines |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 181,400 | 73,900 |
Cost of sales and fuel (exclusive of depreciation and operating costs) | (12,800) | (6,100) |
Operating Segments [Member] | Natural Gas Liquids Regulated [Member] | Natural Gas Liquids |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 516,100 | 378,200 |
Noncustomer [Domain] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | (132,200) | 80,200 |
NGL and Condensate Sales [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 2,406,573 | 1,617,156 |
NGL and Condensate Sales [Member] | Natural Gas Gathering And Processing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 491,807 | 219,917 |
NGL and Condensate Sales [Member] | Natural Gas Liquids |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 2,414,830 | 1,596,711 |
NGL and Condensate Sales [Member] | Natural Gas Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 0 | 0 |
NGL and Condensate Sales [Member] | Total Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 2,906,637 | 1,816,628 |
NGL and Condensate Sales [Member] | Other and Eliminations |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | (500,064) | (199,472) |
Residue Natural Gas Sales [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 427,702 | 190,054 |
Residue Natural Gas Sales [Member] | Natural Gas Gathering And Processing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 312,247 | 189,051 |
Residue Natural Gas Sales [Member] | Natural Gas Liquids |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 0 | 0 |
Residue Natural Gas Sales [Member] | Natural Gas Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 115,455 | 2,035 |
Residue Natural Gas Sales [Member] | Total Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 427,702 | 191,086 |
Residue Natural Gas Sales [Member] | Other and Eliminations |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 0 | (1,032) |
Gathering, Processing and Exchange Services Revenue |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 144,918 | 158,473 |
Gathering, Processing and Exchange Services Revenue | Natural Gas Gathering And Processing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 31,687 | 37,937 |
Gathering, Processing and Exchange Services Revenue | Natural Gas Liquids |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 113,231 | 120,536 |
Gathering, Processing and Exchange Services Revenue | Natural Gas Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 0 | 0 |
Gathering, Processing and Exchange Services Revenue | Total Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 144,918 | 158,473 |
Gathering, Processing and Exchange Services Revenue | Other and Eliminations |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 0 | 0 |
Transportation and Storage Revenue [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 178,140 | 165,310 |
Transportation and Storage Revenue [Member] | Natural Gas Gathering And Processing [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 0 | 0 |
Transportation and Storage Revenue [Member] | Natural Gas Liquids |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 48,728 | 50,755 |
Transportation and Storage Revenue [Member] | Natural Gas Pipelines |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 132,947 | 118,364 |
Transportation and Storage Revenue [Member] | Total Segments [Member] |  |  |
Segment Reporting Information [Line Items] |  |  |
Revenue from Contract with Customer, Excluding Assessed Tax | 181,675 | 169,119 |
Transportation and Storage Revenue [Member] | Other and Eliminations |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | (3,535) | (3,809) |
Other [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 37,346 | 5,679 |
Other [Member] | Natural Gas Gathering And Processing [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 4,000 | 3,075 |
Other [Member] | Natural Gas Liquids |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 33,276 | 2,590 |
Other [Member] | Natural Gas Pipelines |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 412 | 384 |
Other [Member] | Total Segments [Member] |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | 37,688 | 6,049 |
Other [Member] | Other and Eliminations |  |  |
Segment disclosure [Abstract] |  |  |
Revenues | $ (342) | $ (370) |

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