Oil and Gas Exploration and Production Industries Disclosures, Results Of Operations (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1]	$ 15,381		$ 7,291		$ 11,582
Other	[1]	108		60		134
Total	[1]	15,489		7,351		11,716
Exploration Costs	[1]	154		146		140
Dry Hole Costs	[1]	71		13		28
Transportation Costs	[1]	863		735		758
Gathering and Processing Costs		559	[1]	459	[1]	479
Production Costs	[1]	2,155		1,517		2,134
Impairments	[1]	376		2,100		518
Depreciation, Depletion and Amortization	[1]	3,504		3,268		3,658
Income (Loss) Before Income Taxes	[1]	7,807		(887)		4,001
Income Tax Provision (Benefit)	[1]	1,762		(193)		942
Results of Operations	[1]	6,045		(694)		3,059
United States
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1]	15,062		7,056		11,251
Other	[1]	108		60		134
Total	[1]	15,170		7,116		11,385
Exploration Costs	[1]	137		136		130
Dry Hole Costs	[1]	29		13		11
Transportation Costs	[1]	863		734		753
Gathering and Processing Costs		559	[1]	459	[1]	479
Production Costs	[1]	2,108		1,480		2,063
Impairments	[1]	312		2,018		511
Depreciation, Depletion and Amortization	[1]	3,411		3,192		3,561
Income (Loss) Before Income Taxes	[1]	7,751		(916)		3,877
Income Tax Provision (Benefit)	[1]	1,690		(220)		884
Results of Operations	[1]	6,061		(696)		2,993
Trinidad
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1]	301		180		270
Other	[1]	0		0		0
Total	[1]	301		180		270
Exploration Costs	[1]	5		2		4
Dry Hole Costs	[1]	0		0		13
Transportation Costs	[1]	0		1		4
Gathering and Processing Costs		0	[1]	0	[1]	0
Production Costs	[1]	39		27		31
Impairments	[1]	3		1		6
Depreciation, Depletion and Amortization	[1]	87		60		79
Income (Loss) Before Income Taxes	[1]	167		89		133
Income Tax Provision (Benefit)	[1]	73		24		55
Results of Operations	[1]	94		65		78
Other International
Results of Operations for Oil and Gas Producing Activities, by Geographic Area [Line Items]
Crude Oil and Condensate, Natural Gas Liquids and Natural Gas Revenues	[1],[2]	18		55		61
Other	[1],[2]	0		0		0
Total	[1],[2]	18		55		61
Exploration Costs	[1],[2]	12		8		6
Dry Hole Costs	[1],[2]	42		0		4
Transportation Costs	[1],[2]	0		0		1
Gathering and Processing Costs		0	[1],[2]	0	[1],[2]	0
Production Costs	[1],[2]	8		10		40
Impairments	[1],[2]	61		81		1
Depreciation, Depletion and Amortization	[1],[2]	6		16		18
Income (Loss) Before Income Taxes	[1],[2]	(111)		(60)		(9)
Income Tax Provision (Benefit)	[1],[2]	(1)		3		3
Results of Operations	[1],[2]	$ (110)		$ (63)		$ (12)

[1] Excludes gains or losses on the mark-to-market of financial commodity derivative contracts, gains or losses on sales of reserves and related assets, interest charges and general corporate expenses for each of the three years in the period ended December 31, 2021.

[2] Other International primarily consists of EOG's China and Canada operations. The China operations were sold in the second quarter of 2021. EOG began exploration programs in Australia in the third quarter of 2021 and in Oman in the third quarter of 2020. The decision was reached in the fourth quarter of 2021 to exit Block 36 and Block 49 in Oman.