Employee Benefit Plans

3 Months Ended

Mar. 31, 2019

Defined Benefit Plan [Abstract]

EMPLOYEE BENEFIT PLANS

9.

EMPLOYEE BENEFIT PLANS

The components of net periodic benefit cost related to our defined benefit plans were as follows (in millions):

	Pension Plans						Other Postretirement Benefit Plans
	2019			2018			2019			2018
Three months ended March 31:
Service cost	$	30		$	34		$	1		$	1
Interest cost	24			23			3			2
Expected return on plan assets	(42		)	(41		)	—			—
Amortization of:
Net actuarial (gain) loss	10			16			(1		)	—
Prior service credit	(4		)	(5		)	(2		)	(3		)
Special charges	—			2			1			—
Net periodic benefit cost	$	18		$	29		$	2		$	—

The components of net periodic benefit cost other than the service cost component (i.e., the non-service cost components) are included in “other income, net” in the statements of income.

As previously disclosed in our annual report on Form 10-K for the year ended December 31, 2018, we plan to contribute approximately $35 million to our pension plans and $21 million to our other postretirement benefit plans during 2019. During the three months ended March 31, 2019 and 2018, we contributed $14 million and $8 million, respectively, to our pension plans and $4 million and $4 million, respectively, to our other postretirement benefit plans.