Supplementary Information - Components of Depreciation and Amortization Expense (Detail) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting [Abstract]
Depreciation expense relating to fixed assets		$ 1,368	$ 1,402	$ 1,625
Amortization of APS investments		368	305	396
Amortization expense		301	302	371
Amortization of exploration data costs		110	111	174
Total depreciation and amortization expense	[1]	$ 2,147	$ 2,120	$ 2,566

[1] Includes depreciation of property, plant and equipment and amortization of intangible assets, exploration data costs and APS investments.