Pension and Postretirement Benefits (Notes)	6 Months Ended
Jun. 30, 2019
Retirement Benefits [Abstract]
Pension and Postretirement Benefits	Pension and Postretirement Benefits EOG has defined contribution pension plans in place for most of its employees in the United States, and a defined benefit pension plan covering certain of its employees in Trinidad. For the six months ended June 30, 2019 and 2018, EOG's total costs recognized for these pension plans were $23.0 million and $20.2 million, respectively. EOG also has postretirement medical and dental plans in place for eligible employees and their dependents in the United States and Trinidad, the costs of which are not material.

Pension and Postretirement Benefits (Notes)

6 Months Ended

Jun. 30, 2019

EOG has defined contribution pension plans in place for most of its employees in the United States, and a defined benefit pension plan covering certain of its employees in Trinidad. For the six months ended June 30, 2019 and 2018, EOG's total costs recognized for these pension plans were $23.0 million and $20.2 million, respectively. EOG also has postretirement medical and dental plans in place for eligible employees and their dependents in the United States and Trinidad, the costs of which are not material.