PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 2023

Retirement Benefits [Abstract]

Net Periodic Benefit Cost for All Significant Plans

The following table provides the components of the Corporation's net periodic benefit cost (credit) for all significant plans:

Net Periodic Benefit Cost (Credit) for All Significant Plans	Three Months Ended
In millions	Mar 31, 2023		Mar 31, 2022
Defined Benefit Pension Plans
Service cost	$	9	$	9
Interest cost	37		23
Expected return on plan assets	(52)		(57)
Amortization of net loss	16		27
Net periodic benefit cost	$	10	$	2
Other Postretirement Benefit Plan
Interest cost	$	2	$	1
Amortization of net gain	(4)		(2)
Net periodic benefit credit	$	(2)	$	(1)