Acquisitions - Assets Acquired and Liabilities Assumed (Details) - Ensign Natural Resources - USD ($) $ in Millions	Dec. 31, 2022	Dec. 27, 2022
Assets:
Inventories		$ 4
Total current assets acquired		4
Property, plant and equipment		3,159
Total assets acquired		3,163
Liabilities:
Other current liabilities		36
Total current liabilities assumed	$ 31	36
Asset retirement obligations	$ 41	41
Other noncurrent liabilities		58
Total liabilities assumed		135
Net assets acquired		$ 3,028

Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Asset Retirement Obligations

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Amount of assets acquired at the acquisition date.

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Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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Amount of other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of inventory recognized as of the acquisition date.

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Amount of liabilities assumed at the acquisition date.

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Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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Amount of other liabilities due after one year or the normal operating cycle, if longer, assumed at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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