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Exploration and Evaluation Assets (Tables)

12 Months Ended

Dec. 31, 2021

Exploration For And Evaluation Of Mineral Resources [Abstract]

Detailed information about exploration and evaluation assets


			Exploration and Production									Oil Sands Mining and Upgrading			Total
			North America			North Sea			Offshore Africa
Cost
At December 31, 2019			$	2,258		$	—		$	69		$	252		$	2,579
Additions/Acquisitions			40			—			15			—			55

Transfers to property, plant and equipment			(194)			—			—			—			(194)
Derecognitions and other			(3)			—			—			—			(3)
Foreign exchange adjustments			—			—			(1)			—			(1)
At December 31, 2020			2,101			—			83			252			2,436
Additions/Acquisitions			30			—			8			—			38

Transfers to property, plant and equipment			(73)			—			—			(150)			(223)
Derecognitions and other			(1)			—			—			—			(1)

At December 31, 2021			$	2,057		$	—		$	91		$	102		$	2,250