PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)

9 Months Ended

Sep. 30, 2020

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs [Table Text Block]

The following table provides the components of the Company'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	$	100	$	95	$	298	$	302
Interest cost	191		227		574		695
Expected return on plan assets	(415)		(420)		(1,241)		(1,258)
Amortization of prior service credit	(4)		(5)		(14)		(16)
Amortization of net loss	194		147		578		426
Curtailment/special termination benefits 1	—		—		—		(27)
Net periodic benefit cost	$	66	$	44	$	195	$	122
Less: Discontinued operations	—		—		—		21
Net periodic benefit cost - continuing operations	$	66	$	44	$	195	$	101
Other Postretirement Benefit Plans
Service cost	$	2	$	2	$	6	$	6
Interest cost	10		12		29		38
Amortization of net gain	(2)		(5)		(7)		(16)
Curtailment/special termination benefits 1	—		—		—		(3)
Net periodic benefit cost	$	10	$	9	$	28	$	25