PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 2018

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
In millions	Mar 31, 2018			Mar 31, 2017
Defined Benefit Pension Plans:
Service cost	$	133		$	125
Interest cost	218			219
Expected return on plan assets	(406		)	(383		)
Amortization of prior service credit	(6		)	(6		)
Amortization of net loss	171			157
Net periodic benefit cost	$	110		$	112
Other Postretirement Benefits:
Service cost	$	3		$	3
Interest cost	11			14
Amortization of net gain	(6		)	(2		)
Net periodic benefit cost	$	8		$	15