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Agreement to Acquire Noble Energy, Inc. (Details) $ in Billions | 3 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 USD ($) | Jul. 20, 2020 | Mar. 31, 2020 USD ($)
Noble Energy, Inc. |  |  |
Subsequent Event [Line Items] |  |  |
Long-term debt, net carrying value |  |  | $ 8.7
Subsequent Event | Noble Energy, Inc. |  |  |
Subsequent Event [Line Items] |  |  |
Conversion ratio of outstanding shares |  | 0.1191 |
Forecast | Noble Energy, Inc. |  |  |
Subsequent Event [Line Items] |  |  |
Consideration transferred | $ 5.0 |  |

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