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INDUSTRY SEGMENTS AND GEOGRAPHIC AREAS - RESULTS OF OPERATIONS (Details) shares in Millions, $ in Millions | 1 Months Ended | 3 Months Ended | 12 Months Ended
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Jul. 31, 2022 USD ($) shares | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2022 USD ($) segment shares | Dec. 31, 2021 USD ($) shares | Dec. 31, 2020 USD ($)
Segment Reporting [Abstract] |  |  |  |  |  |  |
Number of operating segments | segment |  |  |  |  | 3 |  |
Segment Information |  |  |  |  |  |  |
Net sales |  |  |  |  | $ 36,634 | $ 25,956 | $ 17,809
Income (loss) from continuing operations before income taxes |  |  |  |  | 14,117 | 3,705 | (15,705)
Income tax (expense) benefit |  |  |  |  | (813) | (915) | 2,172
Income (loss) from continuing operations |  |  |  |  | 13,304 | 2,790 | (13,533)
Investments in unconsolidated entities |  |  |  |  | 3,176 | 2,938 | 3,250
Property, plant and equipment additions |  |  |  |  | 4,566 | 2,931 | 2,619
Depreciation, depletion and amortization |  |  |  |  | 6,926 | 8,447 | 8,097
Total assets |  |  |  |  | 72,609 | 75,036 | 80,064
(Loss) gain on derivative instruments |  |  |  |  | 317 | 122 | (423)
Impairment and related charges |  |  | $ 8,600 |  |  |  |
Anadarko Acquisition-related costs |  |  |  |  | 89 | $ 153 | 339
WES | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Gain on sale | $ 62 |  |  |  | $ 102 |  |
Number of shares sold (in shares) | shares | 10.0 |  |  |  | 14.0 | 14.0 |
Impairment of equity method investment |  | $ 2,700 |  |  |  |  |
Goodwill derecognized |  |  |  | $ 1,200 |  |  |
Oil and gas |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Impairment and related charges |  |  | $ 6,400 | $ 581 |  |  |
Operating segments | Oil and gas |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Net sales |  |  |  |  | $ 27,165 | $ 18,941 | 13,066
Income (loss) from continuing operations before income taxes |  |  |  |  | 12,803 | 4,145 | (9,632)
Income tax (expense) benefit |  |  |  |  | 0 | 0 | 0
Income (loss) from continuing operations |  |  |  |  | 12,803 | 4,145 | (9,632)
Investments in unconsolidated entities |  |  |  |  | 142 | 154 | 168
Property, plant and equipment additions |  |  |  |  | 3,898 | 2,458 | 2,279
Depreciation, depletion and amortization |  |  |  |  | 6,179 | 7,741 | 7,414
Total assets |  |  |  |  | 54,058 | 56,132 | 62,931
Pre-tax impairment charges |  |  |  |  |  | 282 |
(Loss) gain on derivative instruments |  |  |  |  |  | (280) | 1,100
Impairment and related charges |  |  |  |  |  |  | 7,100
Pre-tax loss on sale of properties |  |  |  |  |  |  | 1,600
Operating segments | Oil and gas | Permian Basin | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Gain (loss) on sale |  |  |  |  | 148 |  |
Operating segments | Oil and gas | Colombia |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
(Loss) gain on derivative instruments |  |  |  |  |  |  | (353)
Operating segments | Oil and gas | Colombia | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Gain on sale |  |  |  |  | (55) |  |
Operating segments | Chemical |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Net sales |  |  |  |  | 6,757 | 5,246 | 3,733
Income (loss) from continuing operations before income taxes |  |  |  |  | 2,508 | 1,544 | 664
Income tax (expense) benefit |  |  |  |  | 0 | 0 | 0
Income (loss) from continuing operations |  |  |  |  | 2,508 | 1,544 | 664
Investments in unconsolidated entities |  |  |  |  | 578 | 608 | 645
Property, plant and equipment additions |  |  |  |  | 331 | 316 | 261
Depreciation, depletion and amortization |  |  |  |  | 370 | 343 | 356
Total assets |  |  |  |  | 4,558 | 4,671 | 4,326
Operating segments | Midstream and marketing |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Net sales |  |  |  |  | 4,136 | 2,863 | 1,768
Income (loss) from continuing operations before income taxes |  |  |  |  | 273 | 257 | (4,175)
Income tax (expense) benefit |  |  |  |  | 0 | 0 | 0
Income (loss) from continuing operations |  |  |  |  | 273 | 257 | (4,175)
Investments in unconsolidated entities |  |  |  |  | 2,456 | 2,176 | 2,437
Property, plant and equipment additions |  |  |  |  | 270 | 107 | 50
Depreciation, depletion and amortization |  |  |  |  | 328 | 325 | 312
Total assets |  |  |  |  | 12,076 | 11,132 | 9,856
Operating segments | Midstream and marketing | WES | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Gain on sale |  |  |  |  | 62 | 124 |
(Loss) gain on derivative instruments |  |  |  |  | $ (259) | $ (252) |
Number of shares sold (in shares) | shares |  |  |  |  | 10.0 | 11.5 |
Impairment of equity method investment |  |  |  |  |  |  | 2,700
Goodwill derecognized |  |  |  |  |  |  | 1,400
Equity method investment, loss from goodwill impairment |  |  |  |  |  |  | 236
Operating segments | Midstream and marketing | Joint Venture | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Gain on sale |  |  |  |  | $ 36 |  |
Corporate and eliminations |  |  |  |  |  |  |
Segment Information |  |  |  |  |  |  |
Net sales |  |  |  |  | (1,424) | $ (1,094) | (758)
Income (loss) from continuing operations before income taxes |  |  |  |  | (1,467) | (2,241) | (2,562)
Income tax (expense) benefit |  |  |  |  | (813) | (915) | 2,172
Income (loss) from continuing operations |  |  |  |  | (2,280) | (3,156) | (390)
Investments in unconsolidated entities |  |  |  |  | 0 | 0 | 0
Property, plant and equipment additions |  |  |  |  | 67 | 50 | 29
Depreciation, depletion and amortization |  |  |  |  | 49 | 38 | 15
Total assets |  |  |  |  | 1,917 | 3,101 | 2,951
Non-cash tax benefit |  |  |  |  | 2,700 |  |
Mark to market gain (loss) on interest rate swaps |  |  |  |  | 317 | 122 | (428)
Gain (loss) on extinguishment of debt |  |  |  |  | 149 | (118) |
Anadarko Acquisition-related costs |  |  |  |  | $ 89 | $ 153 | $ 339

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