PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

3 Months Ended

Mar. 31, 2019

Retirement Benefits [Abstract]

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

A summary of the Corporation's pension plans and other postretirement benefits can be found in Note 15 to the Consolidated Financial Statements included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2018. The following table provides the components of the Corporation's net periodic benefit cost for all significant plans:

Net Periodic Benefit Cost for All Significant Plans	Three Months Ended
In millions	Mar 31, 2019			Mar 31, 2018
Defined Benefit Pension Plans:
Service cost	$	9		$	10
Interest cost	36			32
Expected return on plan assets	(53		)	(55		)
Amortization of net loss	21			24
Net periodic benefit cost	$	13		$	11
Other Postretirement Benefits:
Interest cost	$	2		$	2
Amortization of net gain	(2		)	(2		)
Net periodic benefit cost	$	—		$	—

Net periodic benefit cost, other than the service cost component, is included in "Sundry income (expense) - net" in the consolidated statements of income.