Employee Benefit Plans - Schedule of Stock- Based Compensation Expense (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 60	$ 53	$ 118	$ 103
Income Statement Location [Axis]: us-gaap:ExplorationExpense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	7	7	14	14
Income Statement Location [Axis]: us-gaap:GeneralAndAdministrativeExpense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	30	26	60	51
Income Statement Location [Axis]: us-gaap:OperatingLeaseExpense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	21	18	41	35
Income Statement Location [Axis]: eog:GatheringProcessingAndTransportationCosts
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 2	$ 2	$ 3	$ 3