PENSION PLANS AND OTHER POSTRETIREMENT BENEFITS (Tables)

6 Months Ended

Jun. 30, 2015

Compensation and Retirement Disclosure [Abstract]

Net Periodic Benefit Cost for All Significant Plans

Net Periodic Benefit Cost for All Significant Plans	Three Months Ended						Six Months Ended
In millions	Jun 30, 2015			Jun 30, 2014			Jun 30, 2015			Jun 30, 2014
Defined Benefit Pension Plans:
Service cost	$	11		$	8		$	22		$	16
Interest cost	41			46			82			92
Expected return on plan assets	(57		)	(58		)	(114		)	(116		)
Amortization of prior service cost	—			1			—			2
Amortization of net loss	22			17			44			34
Net periodic benefit cost	$	17		$	14		$	34		$	28
Other Postretirement Benefits:
Interest cost	$	3		$	3		$	6		$	6
Amortization of net gain	(3		)	(2		)	(6		)	(4		)
Net periodic benefit cost	$	—		$	1		$	—		$	2