PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 2017

Compensation and Retirement Disclosure [Abstract]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

Net Periodic Benefit Cost for All Significant Plans	Three Months Ended
In millions	Mar 31, 2017			Mar 31, 2016
Defined Benefit Pension Plans:
Service cost	$	125		$	104
Interest cost	219			197
Expected return on plan assets	(383		)	(342		)
Amortization of prior service credit	(6		)	(6		)
Amortization of net loss	157			146
Net periodic benefit cost	$	112		$	99
Other Postretirement Benefits:
Service cost	$	3		$	3
Interest cost	14			12
Amortization of prior service credit	—			(1		)
Amortization of net gain	(2		)	(2		)
Net periodic benefit cost	$	15		$	12