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v3.21.1

Segments - Schedule of Industry Segments and Eliminations (Details) shares in Millions, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 USD ($) site shares | Mar. 31, 2020 USD ($)
Segment Information |  |
Number of operating segments | site | 3 |
Net sales | $ 5,293 | $ 6,613
Income (loss) from continuing operations before income taxes | 315 | (2,038)
Income tax benefit (expense) | (16) | 25
Income (loss) from continuing operations | 299 | (2,013)
Gain (loss) on derivative instrument | 399 | (585)
Anadarko acquisition-related costs | 41 | 148
Disposed of by Sale, Not Discontinued Operations | WES Midstream segment |  |
Segment Information |  |
Gain on sale | $ 102 |
Number of limited partner units sold (in units) | shares | 11.5 |
Operating Segments | Oil and gas |  |
Segment Information |  |
Net sales | $ 3,664 | 5,060
Income (loss) from continuing operations before income taxes | (62) | 236
Income tax benefit (expense) | 0 | 0
Income (loss) from continuing operations | (62) | 236
Impairment charge | 135 | 317
Gain (loss) on derivative instrument |  | 952
Asset impairments |  | 264
Operating Segments | Chemical |  |
Segment Information |  |
Net sales | 1,088 | 962
Income (loss) from continuing operations before income taxes | 251 | 186
Income tax benefit (expense) | 0 | 0
Income (loss) from continuing operations | 251 | 186
Operating Segments | Midstream and marketing |  |
Segment Information |  |
Net sales | 807 | 790
Income (loss) from continuing operations before income taxes | 282 | (1,287)
Income tax benefit (expense) | 0 | 0
Income (loss) from continuing operations | 282 | (1,287)
Goodwill impairment | 1,400 |
Operating Segments | Midstream and marketing | Disposed of by Sale, Not Discontinued Operations | WES Midstream segment |  |
Segment Information |  |
Gain on sale | $ 102 |
Number of limited partner units sold (in units) | shares | 11.5 |
Corporate and Eliminations |  |
Segment Information |  |
Net sales | $ (266) | (199)
Income (loss) from continuing operations before income taxes | (156) | (1,173)
Income tax benefit (expense) | (16) | 25
Income (loss) from continuing operations | (172) | (1,148)
Gain (loss) on derivative instrument |  | 84
Mark to market gain (loss) on interest rate swaps | 399 | (669)
Anadarko acquisition-related costs | $ 41 | $ 148

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