Other Operating Expense (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Other Income and Expenses [Abstract]
Termination agreement, expenses recognized	$ 80
Decrease In future commitments	$ 169
Wildhorse Resource Development Corporation
Business Acquisition [Line Items]
Acquisition related costs		$ 34
Severance expense		$ 38

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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