PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Pension and Other Postretirement Benefits Disclosure [Text Block]

PENSION AND OTHER POSTRETIREMENT BENEFIT PLANS

A summary of the Corporation's pension and other postretirement benefit plans can be found in Note 17 to the Consolidated Financial Statements included in the Corporation's Annual Report on Form 10-K for the year ended December 31, 2019. 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				Nine Months Ended
In millions	Sep 30, 2020		Sep 30, 2019		Sep 30, 2020		Sep 30, 2019
Defined Benefit Pension Plans
Service cost	$	9	$	9	$	26	$	27
Interest cost	28		36		84		108
Expected return on plan assets	(50)		(52)		(150)		(158)
Amortization of net loss	27		20		81		62
Net periodic benefit cost	$	14	$	13	$	41	$	39
Other Postretirement Benefit Plan
Service cost	$	—	$	—	$	1	$	—
Interest cost	1		2		4		6
Amortization of net gain	(1)		(2)		(4)		(6)
Net periodic benefit cost	$	—	$	—	$	1	$	—

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